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Abstract Class yii\db\BaseActiveRecord

Inheritanceyii\db\BaseActiveRecord » yii\base\Model » yii\base\Component » yii\base\BaseObject
ImplementsArrayAccess, IteratorAggregate, yii\base\Arrayable, yii\base\Configurable, yii\base\StaticInstanceInterface, yii\db\ActiveRecordInterface
Uses Traitsyii\base\ArrayableTrait, yii\base\StaticInstanceTrait
Subclassesyii\db\ActiveRecord
Available since version2.0
Source Code https://github.com/yiisoft/yii2/blob/master/framework/db/BaseActiveRecord.php

ActiveRecord is the base class for classes representing relational data in terms of objects.

See yii\db\ActiveRecord for a concrete implementation.

Public Properties

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Property Type Description Defined By
$activeValidators yii\validators\Validator[] The validators applicable to the current $scenario. yii\base\Model
$attributes array Attribute values (name => value). yii\base\Model
$behaviors yii\base\Behavior[] List of behaviors attached to this component. yii\base\Component
$dirtyAttributes array The changed attribute values (name-value pairs). yii\db\BaseActiveRecord
$errors array Errors for all attributes or the specified attribute. yii\base\Model
$firstErrors array The first errors. yii\base\Model
$isNewRecord boolean Whether the record is new and should be inserted when calling save(). yii\db\BaseActiveRecord
$iterator ArrayIterator An iterator for traversing the items in the list. yii\base\Model
$oldAttributes array The old attribute values (name-value pairs). yii\db\BaseActiveRecord
$oldPrimaryKey mixed The old primary key value. yii\db\BaseActiveRecord
$primaryKey mixed The primary key value. yii\db\BaseActiveRecord
$relatedRecords array An array of related records indexed by relation names. yii\db\BaseActiveRecord
$scenario string The scenario that this model is in. yii\base\Model
$validators ArrayObject|yii\validators\Validator[] All the validators declared in the model. yii\base\Model

Public Methods

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Method Description Defined By
__call() Calls the named method which is not a class method. yii\base\Component
__clone() This method is called after the object is created by cloning an existing one. yii\base\Model
__construct() Constructor. yii\base\BaseObject
__get() PHP getter magic method. yii\db\BaseActiveRecord
__isset() Checks if a property value is null. yii\db\BaseActiveRecord
__set() PHP setter magic method. yii\db\BaseActiveRecord
__unset() Sets a component property to be null. yii\db\BaseActiveRecord
activeAttributes() Returns the attribute names that are subject to validation in the current scenario. yii\base\Model
addError() Adds a new error to the specified attribute. yii\base\Model
addErrors() Adds a list of errors. yii\base\Model
afterDelete() This method is invoked after deleting a record. yii\db\BaseActiveRecord
afterFind() This method is called when the AR object is created and populated with the query result. yii\db\BaseActiveRecord
afterRefresh() This method is called when the AR object is refreshed. yii\db\BaseActiveRecord
afterSave() This method is called at the end of inserting or updating a record. yii\db\BaseActiveRecord
afterValidate() This method is invoked after validation ends. yii\base\Model
attachBehavior() Attaches a behavior to this component. yii\base\Component
attachBehaviors() Attaches a list of behaviors to the component. yii\base\Component
attributeHints() Returns the attribute hints. yii\base\Model
attributeLabels() Returns the attribute labels. yii\base\Model
attributes() Returns the list of attribute names. yii\base\Model
beforeDelete() This method is invoked before deleting a record. yii\db\BaseActiveRecord
beforeSave() This method is called at the beginning of inserting or updating a record. yii\db\BaseActiveRecord
beforeValidate() This method is invoked before validation starts. yii\base\Model
behaviors() Returns a list of behaviors that this component should behave as. yii\base\Component
canGetProperty() Returns a value indicating whether a property can be read. yii\db\BaseActiveRecord
canSetProperty() Returns a value indicating whether a property can be set. yii\db\BaseActiveRecord
className() Returns the fully qualified name of this class. yii\base\BaseObject
clearErrors() Removes errors for all attributes or a single attribute. yii\base\Model
createValidators() Creates validator objects based on the validation rules specified in rules(). yii\base\Model
delete() Deletes the table row corresponding to this active record. yii\db\BaseActiveRecord
deleteAll() Deletes rows in the table using the provided conditions. yii\db\BaseActiveRecord
detachBehavior() Detaches a behavior from the component. yii\base\Component
detachBehaviors() Detaches all behaviors from the component. yii\base\Component
ensureBehaviors() Makes sure that the behaviors declared in behaviors() are attached to this component. yii\base\Component
equals() Returns a value indicating whether the given active record is the same as the current one. yii\db\BaseActiveRecord
extraFields() Returns the list of fields that can be expanded further and returned by toArray(). yii\db\BaseActiveRecord
fields() Returns the list of fields that should be returned by default by toArray() when no specific fields are specified. yii\db\BaseActiveRecord
find() Creates an yii\db\ActiveQueryInterface instance for query purpose. yii\db\ActiveRecordInterface
findAll() Returns a list of active record models that match the specified primary key value(s) or a set of column values. yii\db\BaseActiveRecord
findOne() Returns a single active record model instance by a primary key or an array of column values. yii\db\BaseActiveRecord
formName() Returns the form name that this model class should use. yii\base\Model
generateAttributeLabel() Generates a user friendly attribute label based on the give attribute name. yii\base\Model
getActiveValidators() Returns the validators applicable to the current $scenario. yii\base\Model
getAttribute() Returns the named attribute value. yii\db\BaseActiveRecord
getAttributeHint() Returns the text hint for the specified attribute. yii\db\BaseActiveRecord
getAttributeLabel() Returns the text label for the specified attribute. yii\db\BaseActiveRecord
getAttributes() Returns attribute values. yii\base\Model
getBehavior() Returns the named behavior object. yii\base\Component
getBehaviors() Returns all behaviors attached to this component. yii\base\Component
getDb() Returns the connection used by this AR class. yii\db\ActiveRecordInterface
getDirtyAttributes() Returns the attribute values that have been modified since they are loaded or saved most recently. yii\db\BaseActiveRecord
getErrorSummary() Returns the errors for all attributes as a one-dimensional array. yii\base\Model
getErrors() Returns the errors for all attributes or a single attribute. yii\base\Model
getFirstError() Returns the first error of the specified attribute. yii\base\Model
getFirstErrors() Returns the first error of every attribute in the model. yii\base\Model
getIsNewRecord() Returns a value indicating whether the current record is new. yii\db\BaseActiveRecord
getIterator() Returns an iterator for traversing the attributes in the model. yii\base\Model
getOldAttribute() Returns the old value of the named attribute. yii\db\BaseActiveRecord
getOldAttributes() Returns the old attribute values. yii\db\BaseActiveRecord
getOldPrimaryKey() Returns the old primary key value(s). yii\db\BaseActiveRecord
getPrimaryKey() Returns the primary key value(s). yii\db\BaseActiveRecord
getRelatedRecords() Returns all populated related records. yii\db\BaseActiveRecord
getRelation() Returns the relation object with the specified name. yii\db\BaseActiveRecord
getScenario() Returns the scenario that this model is used in. yii\base\Model
getValidators() Returns all the validators declared in rules(). yii\base\Model
hasAttribute() Returns a value indicating whether the model has an attribute with the specified name. yii\db\BaseActiveRecord
hasErrors() Returns a value indicating whether there is any validation error. yii\base\Model
hasEventHandlers() Returns a value indicating whether there is any handler attached to the named event. yii\base\Component
hasMany() Declares a has-many relation. yii\db\BaseActiveRecord
hasMethod() Returns a value indicating whether a method is defined. yii\base\Component
hasOne() Declares a has-one relation. yii\db\BaseActiveRecord
hasProperty() Returns a value indicating whether a property is defined for this component. yii\base\Component
init() Initializes the object. yii\db\BaseActiveRecord
insert() Inserts the record into the database using the attribute values of this record. yii\db\ActiveRecordInterface
instance() Returns static class instance, which can be used to obtain meta information. yii\base\StaticInstanceTrait
instantiate() Creates an active record instance. yii\db\BaseActiveRecord
isAttributeActive() Returns a value indicating whether the attribute is active in the current scenario. yii\base\Model
isAttributeChanged() Returns a value indicating whether the named attribute has been changed. yii\db\BaseActiveRecord
isAttributeRequired() Returns a value indicating whether the attribute is required. yii\base\Model
isAttributeSafe() Returns a value indicating whether the attribute is safe for massive assignments. yii\base\Model
isPrimaryKey() Returns a value indicating whether the given set of attributes represents the primary key for this model. yii\db\BaseActiveRecord
isRelationPopulated() Check whether the named relation has been populated with records. yii\db\BaseActiveRecord
link() Establishes the relationship between two models. yii\db\BaseActiveRecord
load() Populates the model with input data. yii\base\Model
loadMultiple() Populates a set of models with the data from end user. yii\base\Model
markAttributeDirty() Marks an attribute dirty. yii\db\BaseActiveRecord
off() Detaches an existing event handler from this component. yii\base\Component
offsetExists() Returns whether there is an element at the specified offset. yii\db\BaseActiveRecord
offsetGet() Returns the element at the specified offset. yii\base\Model
offsetSet() Sets the element at the specified offset. yii\base\Model
offsetUnset() Sets the element value at the specified offset to null. yii\db\BaseActiveRecord
on() Attaches an event handler to an event. yii\base\Component
onUnsafeAttribute() This method is invoked when an unsafe attribute is being massively assigned. yii\base\Model
optimisticLock() Returns the name of the column that stores the lock version for implementing optimistic locking. yii\db\BaseActiveRecord
populateRecord() Populates an active record object using a row of data from the database/storage. yii\db\BaseActiveRecord
populateRelation() Populates the named relation with the related records. yii\db\BaseActiveRecord
primaryKey() Returns the primary key name(s) for this AR class. yii\db\ActiveRecordInterface
refresh() Repopulates this active record with the latest data. yii\db\BaseActiveRecord
rules() Returns the validation rules for attributes. yii\base\Model
safeAttributes() Returns the attribute names that are safe to be massively assigned in the current scenario. yii\base\Model
save() Saves the current record. yii\db\BaseActiveRecord
scenarios() Returns a list of scenarios and the corresponding active attributes. yii\base\Model
setAttribute() Sets the named attribute value. yii\db\BaseActiveRecord
setAttributes() Sets the attribute values in a massive way. yii\base\Model
setIsNewRecord() Sets the value indicating whether the record is new. yii\db\BaseActiveRecord
setOldAttribute() Sets the old value of the named attribute. yii\db\BaseActiveRecord
setOldAttributes() Sets the old attribute values. yii\db\BaseActiveRecord
setScenario() Sets the scenario for the model. yii\base\Model
toArray() Converts the model into an array. yii\base\ArrayableTrait
trigger() Triggers an event. yii\base\Component
unlink() Destroys the relationship between two models. yii\db\BaseActiveRecord
unlinkAll() Destroys the relationship in current model. yii\db\BaseActiveRecord
update() Saves the changes to this active record into the associated database table. yii\db\BaseActiveRecord
updateAll() Updates the whole table using the provided attribute values and conditions. yii\db\BaseActiveRecord
updateAllCounters() Updates the whole table using the provided counter changes and conditions. yii\db\BaseActiveRecord
updateAttributes() Updates the specified attributes. yii\db\BaseActiveRecord
updateCounters() Updates one or several counter columns for the current AR object. yii\db\BaseActiveRecord
validate() Performs the data validation. yii\base\Model
validateMultiple() Validates multiple models. yii\base\Model

Protected Methods

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Method Description Defined By
createRelationQuery() Creates a query instance for has-one or has-many relation. yii\db\BaseActiveRecord
extractFieldsFor() Extract nested fields from a fields collection for a given root field Nested fields are separated with dots (.). e.g: "item.id" The previous example would extract "id". yii\base\ArrayableTrait
extractRootFields() Extracts the root field names from nested fields. yii\base\ArrayableTrait
refreshInternal() Repopulates this active record with the latest data from a newly fetched instance. yii\db\BaseActiveRecord
resolveFields() Determines which fields can be returned by toArray(). yii\base\ArrayableTrait
updateInternal() yii\db\BaseActiveRecord

Events

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Event Type Description Defined By
EVENT_AFTER_DELETE yii\db\Event An event that is triggered after a record is deleted. yii\db\BaseActiveRecord
EVENT_AFTER_FIND yii\db\Event An event that is triggered after the record is created and populated with query result. yii\db\BaseActiveRecord
EVENT_AFTER_INSERT yii\db\AfterSaveEvent An event that is triggered after a record is inserted. yii\db\BaseActiveRecord
EVENT_AFTER_REFRESH yii\db\Event An event that is triggered after a record is refreshed. (available since version 2.0.8) yii\db\BaseActiveRecord
EVENT_AFTER_UPDATE yii\db\AfterSaveEvent An event that is triggered after a record is updated. yii\db\BaseActiveRecord
EVENT_AFTER_VALIDATE yii\base\Event An event raised at the end of validate() yii\base\Model
EVENT_BEFORE_DELETE yii\base\ModelEvent An event that is triggered before deleting a record. yii\db\BaseActiveRecord
EVENT_BEFORE_INSERT yii\base\ModelEvent An event that is triggered before inserting a record. yii\db\BaseActiveRecord
EVENT_BEFORE_UPDATE yii\base\ModelEvent An event that is triggered before updating a record. yii\db\BaseActiveRecord
EVENT_BEFORE_VALIDATE yii\base\ModelEvent An event raised at the beginning of validate(). yii\base\Model
EVENT_INIT yii\db\Event An event that is triggered when the record is initialized via init(). yii\db\BaseActiveRecord

Constants

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Constant Value Description Defined By
SCENARIO_DEFAULT 'default' The name of the default scenario. yii\base\Model

Property Details

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$dirtyAttributes public property

The changed attribute values (name-value pairs).

public array $dirtyAttributes null
$isNewRecord public property

Whether the record is new and should be inserted when calling save().

public boolean $isNewRecord null
$oldAttributes public property

The old attribute values (name-value pairs). Note that the type of this property differs in getter and setter. See getOldAttributes() and setOldAttributes() for details.

public array $oldAttributes null
$oldPrimaryKey public property

The old primary key value. An array (column name => column value) is returned if the primary key is composite. A string is returned otherwise (null will be returned if the key value is null).

public mixed $oldPrimaryKey null
$primaryKey public property

The primary key value. An array (column name => column value) is returned if the primary key is composite. A string is returned otherwise (null will be returned if the key value is null).

public mixed $primaryKey null
$relatedRecords public property

An array of related records indexed by relation names.

public array $relatedRecords null

Method Details

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__call() public method

Defined in: yii\base\Component::__call()

Calls the named method which is not a class method.

This method will check if any attached behavior has the named method and will execute it if available.

Do not call this method directly as it is a PHP magic method that will be implicitly called when an unknown method is being invoked.

public mixed __call ( $name, $params )
$name string

The method name

$params array

Method parameters

return mixed

The method return value

throws yii\base\UnknownMethodException

when calling unknown method

                public function __call($name, $params)
{
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $object) {
        if ($object->hasMethod($name)) {
            return call_user_func_array([$object, $name], $params);
        }
    }
    throw new UnknownMethodException('Calling unknown method: ' . get_class($this) . "::$name()");
}

            
__clone() public method

Defined in: yii\base\Model::__clone()

This method is called after the object is created by cloning an existing one.

It removes all behaviors because they are attached to the old object.

public void __clone ( )

                public function __clone()
{
    parent::__clone();
    $this->_errors = null;
    $this->_validators = null;
}

            
__construct() public method

Defined in: yii\base\BaseObject::__construct()

Constructor.

The default implementation does two things:

  • Initializes the object with the given configuration $config.
  • Call init().

If this method is overridden in a child class, it is recommended that

  • the last parameter of the constructor is a configuration array, like $config here.
  • call the parent implementation at the end of the constructor.
public void __construct ( $config = [] )
$config array

Name-value pairs that will be used to initialize the object properties

                public function __construct($config = [])
{
    if (!empty($config)) {
        Yii::configure($this, $config);
    }
    $this->init();
}

            
__get() public method

PHP getter magic method.

This method is overridden so that attributes and related objects can be accessed like properties.

See also getAttribute().

public mixed __get ( $name )
$name string

Property name

return mixed

Property value

throws yii\base\InvalidArgumentException

if relation name is wrong

                public function __get($name)
{
    if (isset($this->_attributes[$name]) || array_key_exists($name, $this->_attributes)) {
        return $this->_attributes[$name];
    }
    if ($this->hasAttribute($name)) {
        return null;
    }
    if (isset($this->_related[$name]) || array_key_exists($name, $this->_related)) {
        return $this->_related[$name];
    }
    $value = parent::__get($name);
    if ($value instanceof ActiveQueryInterface) {
        $this->setRelationDependencies($name, $value);
        return $this->_related[$name] = $value->findFor($name, $this);
    }
    return $value;
}

            
__isset() public method

Checks if a property value is null.

This method overrides the parent implementation by checking if the named attribute is null or not.

public boolean __isset ( $name )
$name string

The property name or the event name

return boolean

Whether the property value is null

                public function __isset($name)
{
    try {
        return $this->__get($name) !== null;
    } catch (\Exception $t) {
        return false;
    } catch (\Throwable $e) {
        return false;
    }
}

            
__set() public method

PHP setter magic method.

This method is overridden so that AR attributes can be accessed like properties.

public void __set ( $name, $value )
$name string

Property name

$value mixed

Property value

                public function __set($name, $value)
{
    if ($this->hasAttribute($name)) {
        if (
            !empty($this->_relationsDependencies[$name])
            && (!array_key_exists($name, $this->_attributes) || $this->_attributes[$name] !== $value)
        ) {
            $this->resetDependentRelations($name);
        }
        $this->_attributes[$name] = $value;
    } else {
        parent::__set($name, $value);
    }
}

            
__unset() public method

Sets a component property to be null.

This method overrides the parent implementation by clearing the specified attribute value.

public void __unset ( $name )
$name string

The property name or the event name

                public function __unset($name)
{
    if ($this->hasAttribute($name)) {
        unset($this->_attributes[$name]);
        if (!empty($this->_relationsDependencies[$name])) {
            $this->resetDependentRelations($name);
        }
    } elseif (array_key_exists($name, $this->_related)) {
        unset($this->_related[$name]);
    } elseif ($this->getRelation($name, false) === null) {
        parent::__unset($name);
    }
}

            
activeAttributes() public method

Defined in: yii\base\Model::activeAttributes()

Returns the attribute names that are subject to validation in the current scenario.

public string[] activeAttributes ( )
return string[]

Safe attribute names

                public function activeAttributes()
{
    $scenario = $this->getScenario();
    $scenarios = $this->scenarios();
    if (!isset($scenarios[$scenario])) {
        return [];
    }
    $attributes = array_keys(array_flip($scenarios[$scenario]));
    foreach ($attributes as $i => $attribute) {
        if (strncmp($attribute, '!', 1) === 0) {
            $attributes[$i] = substr($attribute, 1);
        }
    }
    return $attributes;
}

            
addError() public method

Defined in: yii\base\Model::addError()

Adds a new error to the specified attribute.

public void addError ( $attribute, $error '' )
$attribute string

Attribute name

$error string

New error message

                public function addError($attribute, $error = '')
{
    $this->_errors[$attribute][] = $error;
}

            
addErrors() public method (available since version 2.0.2)

Defined in: yii\base\Model::addErrors()

Adds a list of errors.

public void addErrors ( array $items )
$items array

A list of errors. The array keys must be attribute names. The array values should be error messages. If an attribute has multiple errors, these errors must be given in terms of an array. You may use the result of getErrors() as the value for this parameter.

                public function addErrors(array $items)
{
    foreach ($items as $attribute => $errors) {
        if (is_array($errors)) {
            foreach ($errors as $error) {
                $this->addError($attribute, $error);
            }
        } else {
            $this->addError($attribute, $errors);
        }
    }
}

            
afterDelete() public method

This method is invoked after deleting a record.

The default implementation raises the EVENT_AFTER_DELETE event. You may override this method to do postprocessing after the record is deleted. Make sure you call the parent implementation so that the event is raised properly.

public void afterDelete ( )

                public function afterDelete()
{
    $this->trigger(self::EVENT_AFTER_DELETE);
}

            
afterFind() public method

This method is called when the AR object is created and populated with the query result.

The default implementation will trigger an EVENT_AFTER_FIND event. When overriding this method, make sure you call the parent implementation to ensure the event is triggered.

public void afterFind ( )

                public function afterFind()
{
    $this->trigger(self::EVENT_AFTER_FIND);
}

            
afterRefresh() public method (available since version 2.0.8)

This method is called when the AR object is refreshed.

The default implementation will trigger an EVENT_AFTER_REFRESH event. When overriding this method, make sure you call the parent implementation to ensure the event is triggered.

public void afterRefresh ( )

                public function afterRefresh()
{
    $this->trigger(self::EVENT_AFTER_REFRESH);
}

            
afterSave() public method

This method is called at the end of inserting or updating a record.

The default implementation will trigger an EVENT_AFTER_INSERT event when $insert is true, or an EVENT_AFTER_UPDATE event if $insert is false. The event class used is yii\db\AfterSaveEvent. When overriding this method, make sure you call the parent implementation so that the event is triggered.

public void afterSave ( $insert, $changedAttributes )
$insert boolean

Whether this method called while inserting a record. If false, it means the method is called while updating a record.

$changedAttributes array

The old values of attributes that had changed and were saved. You can use this parameter to take action based on the changes made for example send an email when the password had changed or implement audit trail that tracks all the changes. $changedAttributes gives you the old attribute values while the active record ($this) has already the new, updated values.

Note that no automatic type conversion performed by default. You may use yii\behaviors\AttributeTypecastBehavior to facilitate attribute typecasting. See http://www.yiiframework.com/doc-2.0/guide-db-active-record.html#attributes-typecasting.

                public function afterSave($insert, $changedAttributes)
{
    $this->trigger($insert ? self::EVENT_AFTER_INSERT : self::EVENT_AFTER_UPDATE, new AfterSaveEvent([
        'changedAttributes' => $changedAttributes,
    ]));
}

            
afterValidate() public method

Defined in: yii\base\Model::afterValidate()

This method is invoked after validation ends.

The default implementation raises an afterValidate event. You may override this method to do postprocessing after validation. Make sure the parent implementation is invoked so that the event can be raised.

public void afterValidate ( )

                public function afterValidate()
{
    $this->trigger(self::EVENT_AFTER_VALIDATE);
}

            
attachBehavior() public method

Defined in: yii\base\Component::attachBehavior()

Attaches a behavior to this component.

This method will create the behavior object based on the given configuration. After that, the behavior object will be attached to this component by calling the yii\base\Behavior::attach() method.

See also detachBehavior().

public yii\base\Behavior attachBehavior ( $name, $behavior )
$name string

The name of the behavior.

$behavior string|array|yii\base\Behavior

The behavior configuration. This can be one of the following:

return yii\base\Behavior

The behavior object

                public function attachBehavior($name, $behavior)
{
    $this->ensureBehaviors();
    return $this->attachBehaviorInternal($name, $behavior);
}

            
attachBehaviors() public method

Defined in: yii\base\Component::attachBehaviors()

Attaches a list of behaviors to the component.

Each behavior is indexed by its name and should be a yii\base\Behavior object, a string specifying the behavior class, or an configuration array for creating the behavior.

See also attachBehavior().

public void attachBehaviors ( $behaviors )
$behaviors array

List of behaviors to be attached to the component

                public function attachBehaviors($behaviors)
{
    $this->ensureBehaviors();
    foreach ($behaviors as $name => $behavior) {
        $this->attachBehaviorInternal($name, $behavior);
    }
}

            
attributeHints() public method (available since version 2.0.4)

Defined in: yii\base\Model::attributeHints()

Returns the attribute hints.

Attribute hints are mainly used for display purpose. For example, given an attribute isPublic, we can declare a hint Whether the post should be visible for not logged in users, which provides user-friendly description of the attribute meaning and can be displayed to end users.

Unlike label hint will not be generated, if its explicit declaration is omitted.

Note, in order to inherit hints defined in the parent class, a child class needs to merge the parent hints with child hints using functions such as array_merge().

public array attributeHints ( )
return array

Attribute hints (name => hint)

                public function attributeHints()
{
    return [];
}

            
attributeLabels() public method

Defined in: yii\base\Model::attributeLabels()

Returns the attribute labels.

Attribute labels are mainly used for display purpose. For example, given an attribute firstName, we can declare a label First Name which is more user-friendly and can be displayed to end users.

By default an attribute label is generated using generateAttributeLabel(). This method allows you to explicitly specify attribute labels.

Note, in order to inherit labels defined in the parent class, a child class needs to merge the parent labels with child labels using functions such as array_merge().

See also generateAttributeLabel().

public array attributeLabels ( )
return array

Attribute labels (name => label)

                public function attributeLabels()
{
    return [];
}

            
attributes() public method

Defined in: yii\base\Model::attributes()

Returns the list of attribute names.

By default, this method returns all public non-static properties of the class. You may override this method to change the default behavior.

public string[] attributes ( )
return string[]

List of attribute names.

                public function attributes()
{
    return array_keys(Yii::getObjectVars($this));
}

            
beforeDelete() public method

This method is invoked before deleting a record.

The default implementation raises the EVENT_BEFORE_DELETE event. When overriding this method, make sure you call the parent implementation like the following:

public function beforeDelete()
{
    if (!parent::beforeDelete()) {
        return false;
    }

    // ...custom code here...
    return true;
}
public boolean beforeDelete ( )
return boolean

Whether the record should be deleted. Defaults to true.

                public function beforeDelete()
{
    $event = new ModelEvent();
    $this->trigger(self::EVENT_BEFORE_DELETE, $event);
    return $event->isValid;
}

            
beforeSave() public method

This method is called at the beginning of inserting or updating a record.

The default implementation will trigger an EVENT_BEFORE_INSERT event when $insert is true, or an EVENT_BEFORE_UPDATE event if $insert is false. When overriding this method, make sure you call the parent implementation like the following:

public function beforeSave($insert)
{
    if (!parent::beforeSave($insert)) {
        return false;
    }

    // ...custom code here...
    return true;
}
public boolean beforeSave ( $insert )
$insert boolean

Whether this method called while inserting a record. If false, it means the method is called while updating a record.

return boolean

Whether the insertion or updating should continue. If false, the insertion or updating will be cancelled.

                public function beforeSave($insert)
{
    $event = new ModelEvent();
    $this->trigger($insert ? self::EVENT_BEFORE_INSERT : self::EVENT_BEFORE_UPDATE, $event);
    return $event->isValid;
}

            
beforeValidate() public method

Defined in: yii\base\Model::beforeValidate()

This method is invoked before validation starts.

The default implementation raises a beforeValidate event. You may override this method to do preliminary checks before validation. Make sure the parent implementation is invoked so that the event can be raised.

public boolean beforeValidate ( )
return boolean

Whether the validation should be executed. Defaults to true. If false is returned, the validation will stop and the model is considered invalid.

                public function beforeValidate()
{
    $event = new ModelEvent();
    $this->trigger(self::EVENT_BEFORE_VALIDATE, $event);
    return $event->isValid;
}

            
behaviors() public method

Defined in: yii\base\Component::behaviors()

Returns a list of behaviors that this component should behave as.

Child classes may override this method to specify the behaviors they want to behave as.

The return value of this method should be an array of behavior objects or configurations indexed by behavior names. A behavior configuration can be either a string specifying the behavior class or an array of the following structure:

'behaviorName' => [
    'class' => 'BehaviorClass',
    'property1' => 'value1',
    'property2' => 'value2',
]

Note that a behavior class must extend from yii\base\Behavior. Behaviors can be attached using a name or anonymously. When a name is used as the array key, using this name, the behavior can later be retrieved using getBehavior() or be detached using detachBehavior(). Anonymous behaviors can not be retrieved or detached.

Behaviors declared in this method will be attached to the component automatically (on demand).

public array behaviors ( )
return array

The behavior configurations.

                public function behaviors()
{
    return [];
}

            
canGetProperty() public method

Returns a value indicating whether a property can be read.

A property can be read if:

  • the class has a getter method associated with the specified name (in this case, property name is case-insensitive);
  • the class has a member variable with the specified name (when $checkVars is true);
  • an attached behavior has a readable property of the given name (when $checkBehaviors is true).
public boolean canGetProperty ( $name, $checkVars true, $checkBehaviors true )
$name string

The property name

$checkVars boolean

Whether to treat member variables as properties

$checkBehaviors boolean

Whether to treat behaviors' properties as properties of this component

return boolean

Whether the property can be read

                public function canGetProperty($name, $checkVars = true, $checkBehaviors = true)
{
    if (parent::canGetProperty($name, $checkVars, $checkBehaviors)) {
        return true;
    }
    try {
        return $this->hasAttribute($name);
    } catch (\Exception $e) {
        // `hasAttribute()` may fail on base/abstract classes in case automatic attribute list fetching used
        return false;
    }
}

            
canSetProperty() public method

Returns a value indicating whether a property can be set.

A property can be written if:

  • the class has a setter method associated with the specified name (in this case, property name is case-insensitive);
  • the class has a member variable with the specified name (when $checkVars is true);
  • an attached behavior has a writable property of the given name (when $checkBehaviors is true).
public boolean canSetProperty ( $name, $checkVars true, $checkBehaviors true )
$name string

The property name

$checkVars boolean

Whether to treat member variables as properties

$checkBehaviors boolean

Whether to treat behaviors' properties as properties of this component

return boolean

Whether the property can be written

                public function canSetProperty($name, $checkVars = true, $checkBehaviors = true)
{
    if (parent::canSetProperty($name, $checkVars, $checkBehaviors)) {
        return true;
    }
    try {
        return $this->hasAttribute($name);
    } catch (\Exception $e) {
        // `hasAttribute()` may fail on base/abstract classes in case automatic attribute list fetching used
        return false;
    }
}

            
className() public static method
Deprecated since 2.0.14. On PHP >=5.5, use ::class instead.

Defined in: yii\base\BaseObject::className()

Returns the fully qualified name of this class.

public static string className ( )
return string

The fully qualified name of this class.

                public static function className()
{
    return get_called_class();
}

            
clearErrors() public method

Defined in: yii\base\Model::clearErrors()

Removes errors for all attributes or a single attribute.

public void clearErrors ( $attribute null )
$attribute string|null

Attribute name. Use null to remove errors for all attributes.

                public function clearErrors($attribute = null)
{
    if ($attribute === null) {
        $this->_errors = [];
    } else {
        unset($this->_errors[$attribute]);
    }
}

            
createRelationQuery() protected method (available since version 2.0.12)

Creates a query instance for has-one or has-many relation.

See also:

protected yii\db\ActiveQueryInterface createRelationQuery ( $class, $link, $multiple )
$class string

The class name of the related record.

$link array

The primary-foreign key constraint.

$multiple boolean

Whether this query represents a relation to more than one record.

return yii\db\ActiveQueryInterface

The relational query object.

                protected function createRelationQuery($class, $link, $multiple)
{
    /* @var $class ActiveRecordInterface */
    /* @var $query ActiveQuery */
    $query = $class::find();
    $query->primaryModel = $this;
    $query->link = $link;
    $query->multiple = $multiple;
    return $query;
}

            
createValidators() public method

Defined in: yii\base\Model::createValidators()

Creates validator objects based on the validation rules specified in rules().

Unlike getValidators(), each time this method is called, a new list of validators will be returned.

public ArrayObject createValidators ( )
return ArrayObject

Validators

throws yii\base\InvalidConfigException

if any validation rule configuration is invalid

                public function createValidators()
{
    $validators = new ArrayObject();
    foreach ($this->rules() as $rule) {
        if ($rule instanceof Validator) {
            $validators->append($rule);
        } elseif (is_array($rule) && isset($rule[0], $rule[1])) { // attributes, validator type
            $validator = Validator::createValidator($rule[1], $this, (array) $rule[0], array_slice($rule, 2));
            $validators->append($validator);
        } else {
            throw new InvalidConfigException('Invalid validation rule: a rule must specify both attribute names and validator type.');
        }
    }
    return $validators;
}

            
delete() public method

Deletes the table row corresponding to this active record.

This method performs the following steps in order:

  1. call beforeDelete(). If the method returns false, it will skip the rest of the steps;
  2. delete the record from the database;
  3. call afterDelete().

In the above step 1 and 3, events named EVENT_BEFORE_DELETE and EVENT_AFTER_DELETE will be raised by the corresponding methods.

public integer|false delete ( )
return integer|false

The number of rows deleted, or false if the deletion is unsuccessful for some reason. Note that it is possible the number of rows deleted is 0, even though the deletion execution is successful.

throws yii\db\StaleObjectException

if optimistic locking is enabled and the data being deleted is outdated.

throws yii\db\Exception

in case delete failed.

                public function delete()
{
    $result = false;
    if ($this->beforeDelete()) {
        // we do not check the return value of deleteAll() because it's possible
        // the record is already deleted in the database and thus the method will return 0
        $condition = $this->getOldPrimaryKey(true);
        $lock = $this->optimisticLock();
        if ($lock !== null) {
            $condition[$lock] = $this->$lock;
        }
        $result = static::deleteAll($condition);
        if ($lock !== null && !$result) {
            throw new StaleObjectException('The object being deleted is outdated.');
        }
        $this->_oldAttributes = null;
        $this->afterDelete();
    }
    return $result;
}

            
deleteAll() public static method

Deletes rows in the table using the provided conditions.

WARNING: If you do not specify any condition, this method will delete ALL rows in the table.

For example, to delete all customers whose status is 3:

Customer::deleteAll('status = 3');
public static integer deleteAll ( $condition null )
$condition string|array|null

The conditions that will be put in the WHERE part of the DELETE SQL. Please refer to yii\db\Query::where() on how to specify this parameter.

return integer

The number of rows deleted

throws yii\base\NotSupportedException

if not overridden.

                public static function deleteAll($condition = null)
{
    throw new NotSupportedException(__METHOD__ . ' is not supported.');
}

            
detachBehavior() public method

Defined in: yii\base\Component::detachBehavior()

Detaches a behavior from the component.

The behavior's yii\base\Behavior::detach() method will be invoked.

public yii\base\Behavior|null detachBehavior ( $name )
$name string

The behavior's name.

return yii\base\Behavior|null

The detached behavior. Null if the behavior does not exist.

                public function detachBehavior($name)
{
    $this->ensureBehaviors();
    if (isset($this->_behaviors[$name])) {
        $behavior = $this->_behaviors[$name];
        unset($this->_behaviors[$name]);
        $behavior->detach();
        return $behavior;
    }
    return null;
}

            
detachBehaviors() public method

Defined in: yii\base\Component::detachBehaviors()

Detaches all behaviors from the component.

public void detachBehaviors ( )

                public function detachBehaviors()
{
    $this->ensureBehaviors();
    foreach ($this->_behaviors as $name => $behavior) {
        $this->detachBehavior($name);
    }
}

            
ensureBehaviors() public method

Defined in: yii\base\Component::ensureBehaviors()

Makes sure that the behaviors declared in behaviors() are attached to this component.

public void ensureBehaviors ( )

                public function ensureBehaviors()
{
    if ($this->_behaviors === null) {
        $this->_behaviors = [];
        foreach ($this->behaviors() as $name => $behavior) {
            $this->attachBehaviorInternal($name, $behavior);
        }
    }
}

            
equals() public method

Returns a value indicating whether the given active record is the same as the current one.

The comparison is made by comparing the table names and the primary key values of the two active records. If one of the records is new they are also considered not equal.

public boolean equals ( $record )
$record yii\db\ActiveRecordInterface

Record to compare to

return boolean

Whether the two active records refer to the same row in the same database table.

                public function equals($record)
{
    if ($this->getIsNewRecord() || $record->getIsNewRecord()) {
        return false;
    }
    return get_class($this) === get_class($record) && $this->getPrimaryKey() === $record->getPrimaryKey();
}

            
extraFields() public method

Returns the list of fields that can be expanded further and returned by toArray().

The default implementation returns the names of the relations that have been populated into this record.

This method is similar to fields() except that the list of fields returned by this method are not returned by default by toArray(). Only when field names to be expanded are explicitly specified when calling toArray(), will their values be exported.

The default implementation returns an empty array.

You may override this method to return a list of expandable fields based on some context information (e.g. the current application user).

public array extraFields ( )
return array

The list of expandable field names or field definitions. Please refer to fields() on the format of the return value.

                public function extraFields()
{
    $fields = array_keys($this->getRelatedRecords());
    return array_combine($fields, $fields);
}

            
extractFieldsFor() protected method (available since version 2.0.14)

Defined in: yii\base\ArrayableTrait::extractFieldsFor()

Extract nested fields from a fields collection for a given root field Nested fields are separated with dots (.). e.g: "item.id" The previous example would extract "id".

protected array extractFieldsFor ( array $fields, $rootField )
$fields array

The fields requested for extraction

$rootField string

The root field for which we want to extract the nested fields

return array

Nested fields extracted for the given field

                protected function extractFieldsFor(array $fields, $rootField)
{
    $result = [];
    foreach ($fields as $field) {
        if (0 === strpos($field, "{$rootField}.")) {
            $result[] = preg_replace('/^' . preg_quote($rootField, '/') . '\./i', '', $field);
        }
    }
    return array_unique($result);
}

            
extractRootFields() protected method (available since version 2.0.14)

Defined in: yii\base\ArrayableTrait::extractRootFields()

Extracts the root field names from nested fields.

Nested fields are separated with dots (.). e.g: "item.id" The previous example would extract "item".

protected array extractRootFields ( array $fields )
$fields array

The fields requested for extraction

return array

Root fields extracted from the given nested fields

                protected function extractRootFields(array $fields)
{
    $result = [];
    foreach ($fields as $field) {
        $result[] = current(explode('.', $field, 2));
    }
    if (in_array('*', $result, true)) {
        $result = [];
    }
    return array_unique($result);
}

            
fields() public method

Returns the list of fields that should be returned by default by toArray() when no specific fields are specified.

The default implementation returns the names of the columns whose values have been populated into this record.

A field is a named element in the returned array by toArray().

This method should return an array of field names or field definitions. If the former, the field name will be treated as an object property name whose value will be used as the field value. If the latter, the array key should be the field name while the array value should be the corresponding field definition which can be either an object property name or a PHP callable returning the corresponding field value. The signature of the callable should be:

function ($model, $field) {
    // return field value
}

For example, the following code declares four fields:

  • email: the field name is the same as the property name email;
  • firstName and lastName: the field names are firstName and lastName, and their values are obtained from the first_name and last_name properties;
  • fullName: the field name is fullName. Its value is obtained by concatenating first_name and last_name.
return [
    'email',
    'firstName' => 'first_name',
    'lastName' => 'last_name',
    'fullName' => function ($model) {
        return $model->first_name . ' ' . $model->last_name;
    },
];

In this method, you may also want to return different lists of fields based on some context information. For example, depending on $scenario or the privilege of the current application user, you may return different sets of visible fields or filter out some fields.

The default implementation of this method returns attributes() indexed by the same attribute names.

public array fields ( )
return array

The list of field names or field definitions.

                public function fields()
{
    $fields = array_keys($this->_attributes);
    return array_combine($fields, $fields);
}

            
find() public abstract static method

Defined in: yii\db\ActiveRecordInterface::find()

Creates an yii\db\ActiveQueryInterface instance for query purpose.

The returned yii\db\ActiveQueryInterface instance can be further customized by calling methods defined in yii\db\ActiveQueryInterface before one() or all() is called to return populated ActiveRecord instances. For example,

// find the customer whose ID is 1
$customer = Customer::find()->where(['id' => 1])->one();

// find all active customers and order them by their age:
$customers = Customer::find()
    ->where(['status' => 1])
    ->orderBy('age')
    ->all();

This method is also called by yii\db\BaseActiveRecord::hasOne() and yii\db\BaseActiveRecord::hasMany() to create a relational query.

You may override this method to return a customized query. For example,

class Customer extends ActiveRecord
{
    public static function find()
    {
        // use CustomerQuery instead of the default ActiveQuery
        return new CustomerQuery(get_called_class());
    }
}

The following code shows how to apply a default condition for all queries:

class Customer extends ActiveRecord
{
    public static function find()
    {
        return parent::find()->where(['deleted' => false]);
    }
}

// Use andWhere()/orWhere() to apply the default condition
// SELECT FROM customer WHERE `deleted`=:deleted AND age>30
$customers = Customer::find()->andWhere('age>30')->all();

// Use where() to ignore the default condition
// SELECT FROM customer WHERE age>30
$customers = Customer::find()->where('age>30')->all();
public abstract static yii\db\ActiveQueryInterface find ( )
return yii\db\ActiveQueryInterface

The newly created yii\db\ActiveQueryInterface instance.

                public static function find();

            
findAll() public static method

Returns a list of active record models that match the specified primary key value(s) or a set of column values.

The method accepts:

  • a scalar value (integer or string): query by a single primary key value and return an array containing the corresponding record (or an empty array if not found).
  • a non-associative array: query by a list of primary key values and return the corresponding records (or an empty array if none was found). Note that an empty condition will result in an empty result as it will be interpreted as a search for primary keys and not an empty WHERE condition.
  • an associative array of name-value pairs: query by a set of attribute values and return an array of records matching all of them (or an empty array if none was found). Note that ['id' => 1, 2] is treated as a non-associative array. Column names are limited to current records table columns for SQL DBMS, or filtered otherwise to be limted to simple filter conditions.
  • a yii\db\Expression: The expression will be used directly. (@since 2.0.37)

This method will automatically call the all() method and return an array of ActiveRecord instances.

Note: As this is a short-hand method only, using more complex conditions, like ['!=', 'id', 1] will not work. If you need to specify more complex conditions, use find() in combination with where() instead.

See the following code for usage examples:

// find the customers whose primary key value is 10
$customers = Customer::findAll(10);

// the above code is equivalent to:
$customers = Customer::find()->where(['id' => 10])->all();

// find the customers whose primary key value is 10, 11 or 12.
$customers = Customer::findAll([10, 11, 12]);

// the above code is equivalent to:
$customers = Customer::find()->where(['id' => [10, 11, 12]])->all();

// find customers whose age is 30 and whose status is 1
$customers = Customer::findAll(['age' => 30, 'status' => 1]);

// the above code is equivalent to:
$customers = Customer::find()->where(['age' => 30, 'status' => 1])->all();

If you need to pass user input to this method, make sure the input value is scalar or in case of array condition, make sure the array structure can not be changed from the outside:

// yii\web\Controller ensures that $id is scalar
public function actionView($id)
{
    $model = Post::findOne($id);
    // ...
}

// explicitly specifying the colum to search, passing a scalar or array here will always result in finding a single record
$model = Post::findOne(['id' => Yii::$app->request->get('id')]);

// do NOT use the following code! it is possible to inject an array condition to filter by arbitrary column values!
$model = Post::findOne(Yii::$app->request->get('id'));
public static static[] findAll ( $condition )
$condition mixed

Primary key value or a set of column values

return static[]

An array of ActiveRecord instances, or an empty array if nothing matches.

                public static function findAll($condition)
{
    return static::findByCondition($condition)->all();
}

            
findOne() public static method

Returns a single active record model instance by a primary key or an array of column values.

The method accepts:

  • a scalar value (integer or string): query by a single primary key value and return the corresponding record (or null if not found).
  • a non-associative array: query by a list of primary key values and return the first record (or null if not found).
  • an associative array of name-value pairs: query by a set of attribute values and return a single record matching all of them (or null if not found). Note that ['id' => 1, 2] is treated as a non-associative array. Column names are limited to current records table columns for SQL DBMS, or filtered otherwise to be limited to simple filter conditions.
  • a yii\db\Expression: The expression will be used directly. (@since 2.0.37)

That this method will automatically call the one() method and return an ActiveRecord instance.

Note: As this is a short-hand method only, using more complex conditions, like ['!=', 'id', 1] will not work. If you need to specify more complex conditions, use find() in combination with where() instead.

See the following code for usage examples:

// find a single customer whose primary key value is 10
$customer = Customer::findOne(10);

// the above code is equivalent to:
$customer = Customer::find()->where(['id' => 10])->one();

// find the customers whose primary key value is 10, 11 or 12.
$customers = Customer::findOne([10, 11, 12]);

// the above code is equivalent to:
$customers = Customer::find()->where(['id' => [10, 11, 12]])->one();

// find the first customer whose age is 30 and whose status is 1
$customer = Customer::findOne(['age' => 30, 'status' => 1]);

// the above code is equivalent to:
$customer = Customer::find()->where(['age' => 30, 'status' => 1])->one();

If you need to pass user input to this method, make sure the input value is scalar or in case of array condition, make sure the array structure can not be changed from the outside:

// yii\web\Controller ensures that $id is scalar
public function actionView($id)
{
    $model = Post::findOne($id);
    // ...
}

// explicitly specifying the colum to search, passing a scalar or array here will always result in finding a single record
$model = Post::findOne(['id' => Yii::$app->request->get('id')]);

// do NOT use the following code! it is possible to inject an array condition to filter by arbitrary column values!
$model = Post::findOne(Yii::$app->request->get('id'));
public static static|null findOne ( $condition )
$condition mixed

Primary key value or a set of column values

return static|null

ActiveRecord instance matching the condition, or null if nothing matches.

                public static function findOne($condition)
{
    return static::findByCondition($condition)->one();
}

            
formName() public method

Defined in: yii\base\Model::formName()

Returns the form name that this model class should use.

The form name is mainly used by yii\widgets\ActiveForm to determine how to name the input fields for the attributes in a model. If the form name is "A" and an attribute name is "b", then the corresponding input name would be "A[b]". If the form name is an empty string, then the input name would be "b".

The purpose of the above naming schema is that for forms which contain multiple different models, the attributes of each model are grouped in sub-arrays of the POST-data and it is easier to differentiate between them.

By default, this method returns the model class name (without the namespace part) as the form name. You may override it when the model is used in different forms.

See also load().

public string formName ( )
return string

The form name of this model class.

throws yii\base\InvalidConfigException

when form is defined with anonymous class and formName() method is not overridden.

                public function formName()
{
    $reflector = new ReflectionClass($this);
    if (PHP_VERSION_ID >= 70000 && $reflector->isAnonymous()) {
        throw new InvalidConfigException('The "formName()" method should be explicitly defined for anonymous models');
    }
    return $reflector->getShortName();
}

            
generateAttributeLabel() public method

Defined in: yii\base\Model::generateAttributeLabel()

Generates a user friendly attribute label based on the give attribute name.

This is done by replacing underscores, dashes and dots with blanks and changing the first letter of each word to upper case. For example, 'department_name' or 'DepartmentName' will generate 'Department Name'.

public string generateAttributeLabel ( $name )
$name string

The column name

return string

The attribute label

                public function generateAttributeLabel($name)
{
    return Inflector::camel2words($name, true);
}

            
getActiveValidators() public method

Defined in: yii\base\Model::getActiveValidators()

Returns the validators applicable to the current $scenario.

public yii\validators\Validator[] getActiveValidators ( $attribute null )
$attribute string|null

The name of the attribute whose applicable validators should be returned. If this is null, the validators for ALL attributes in the model will be returned.

return yii\validators\Validator[]

The validators applicable to the current $scenario.

                public function getActiveValidators($attribute = null)
{
    $activeAttributes = $this->activeAttributes();
    if ($attribute !== null && !in_array($attribute, $activeAttributes, true)) {
        return [];
    }
    $scenario = $this->getScenario();
    $validators = [];
    foreach ($this->getValidators() as $validator) {
        if ($attribute === null) {
            $validatorAttributes = $validator->getValidationAttributes($activeAttributes);
            $attributeValid = !empty($validatorAttributes);
        } else {
            $attributeValid = in_array($attribute, $validator->getValidationAttributes($attribute), true);
        }
        if ($attributeValid && $validator->isActive($scenario)) {
            $validators[] = $validator;
        }
    }
    return $validators;
}

            
getAttribute() public method

Returns the named attribute value.

If this record is the result of a query and the attribute is not loaded, null will be returned.

See also hasAttribute().

public mixed getAttribute ( $name )
$name string

The attribute name

return mixed

The attribute value. null if the attribute is not set or does not exist.

                public function getAttribute($name)
{
    return isset($this->_attributes[$name]) ? $this->_attributes[$name] : null;
}

            
getAttributeHint() public method (available since version 2.0.4)

Returns the text hint for the specified attribute.

If the attribute looks like relatedModel.attribute, then the attribute will be received from the related model.

See also attributeHints().

public string getAttributeHint ( $attribute )
$attribute string

The attribute name

return string

The attribute hint

                public function getAttributeHint($attribute)
{
    $hints = $this->attributeHints();
    if (isset($hints[$attribute])) {
        return $hints[$attribute];
    } elseif (strpos($attribute, '.')) {
        $attributeParts = explode('.', $attribute);
        $neededAttribute = array_pop($attributeParts);
        $relatedModel = $this;
        foreach ($attributeParts as $relationName) {
            if ($relatedModel->isRelationPopulated($relationName) && $relatedModel->$relationName instanceof self) {
                $relatedModel = $relatedModel->$relationName;
            } else {
                try {
                    $relation = $relatedModel->getRelation($relationName);
                } catch (InvalidParamException $e) {
                    return '';
                }
                /* @var $modelClass ActiveRecordInterface */
                $modelClass = $relation->modelClass;
                $relatedModel = $modelClass::instance();
            }
        }
        $hints = $relatedModel->attributeHints();
        if (isset($hints[$neededAttribute])) {
            return $hints[$neededAttribute];
        }
    }
    return '';
}

            
getAttributeLabel() public method

Returns the text label for the specified attribute.

If the attribute looks like relatedModel.attribute, then the attribute will be received from the related model.

See also:

public string getAttributeLabel ( $attribute )
$attribute string

The attribute name

return string

The attribute label

                public function getAttributeLabel($attribute)
{
    $labels = $this->attributeLabels();
    if (isset($labels[$attribute])) {
        return $labels[$attribute];
    } elseif (strpos($attribute, '.')) {
        $attributeParts = explode('.', $attribute);
        $neededAttribute = array_pop($attributeParts);
        $relatedModel = $this;
        foreach ($attributeParts as $relationName) {
            if ($relatedModel->isRelationPopulated($relationName) && $relatedModel->$relationName instanceof self) {
                $relatedModel = $relatedModel->$relationName;
            } else {
                try {
                    $relation = $relatedModel->getRelation($relationName);
                } catch (InvalidParamException $e) {
                    return $this->generateAttributeLabel($attribute);
                }
                /* @var $modelClass ActiveRecordInterface */
                $modelClass = $relation->modelClass;
                $relatedModel = $modelClass::instance();
            }
        }
        $labels = $relatedModel->attributeLabels();
        if (isset($labels[$neededAttribute])) {
            return $labels[$neededAttribute];
        }
    }
    return $this->generateAttributeLabel($attribute);
}

            
getAttributes() public method

Defined in: yii\base\Model::getAttributes()

Returns attribute values.

public array getAttributes ( $names null, $except = [] )
$names array|null

List of attributes whose value needs to be returned. Defaults to null, meaning all attributes listed in attributes() will be returned. If it is an array, only the attributes in the array will be returned.

$except array

List of attributes whose value should NOT be returned.

return array

Attribute values (name => value).

                public function getAttributes($names = null, $except = [])
{
    $values = [];
    if ($names === null) {
        $names = $this->attributes();
    }
    foreach ($names as $name) {
        $values[$name] = $this->$name;
    }
    foreach ($except as $name) {
        unset($values[$name]);
    }
    return $values;
}

            
getBehavior() public method

Defined in: yii\base\Component::getBehavior()

Returns the named behavior object.

public yii\base\Behavior|null getBehavior ( $name )
$name string

The behavior name

return yii\base\Behavior|null

The behavior object, or null if the behavior does not exist

                public function getBehavior($name)
{
    $this->ensureBehaviors();
    return isset($this->_behaviors[$name]) ? $this->_behaviors[$name] : null;
}

            
getBehaviors() public method

Defined in: yii\base\Component::getBehaviors()

Returns all behaviors attached to this component.

public yii\base\Behavior[] getBehaviors ( )
return yii\base\Behavior[]

List of behaviors attached to this component

                public function getBehaviors()
{
    $this->ensureBehaviors();
    return $this->_behaviors;
}

            
getDb() public abstract static method

Defined in: yii\db\ActiveRecordInterface::getDb()

Returns the connection used by this AR class.

public abstract static mixed getDb ( )
return mixed

The database connection used by this AR class.

                public static function getDb();

            
getDirtyAttributes() public method

Returns the attribute values that have been modified since they are loaded or saved most recently.

The comparison of new and old values is made for identical values using ===.

public array getDirtyAttributes ( $names null )
$names string[]|null

The names of the attributes whose values may be returned if they are changed recently. If null, attributes() will be used.

return array

The changed attribute values (name-value pairs)

                public function getDirtyAttributes($names = null)
{
    if ($names === null) {
        $names = $this->attributes();
    }
    $names = array_flip($names);
    $attributes = [];
    if ($this->_oldAttributes === null) {
        foreach ($this->_attributes as $name => $value) {
            if (isset($names[$name])) {
                $attributes[$name] = $value;
            }
        }
    } else {
        foreach ($this->_attributes as $name => $value) {
            if (isset($names[$name]) && (!array_key_exists($name, $this->_oldAttributes) || $this->isAttributeDirty($name, $value))) {
                $attributes[$name] = $value;
            }
        }
    }
    return $attributes;
}

            
getErrorSummary() public method (available since version 2.0.14)

Defined in: yii\base\Model::getErrorSummary()

Returns the errors for all attributes as a one-dimensional array.

See also:

public array getErrorSummary ( $showAllErrors )
$showAllErrors boolean

Boolean, if set to true every error message for each attribute will be shown otherwise only the first error message for each attribute will be shown.

return array

Errors for all attributes as a one-dimensional array. Empty array is returned if no error.

                public function getErrorSummary($showAllErrors)
{
    $lines = [];
    $errors = $showAllErrors ? $this->getErrors() : $this->getFirstErrors();
    foreach ($errors as $es) {
        $lines = array_merge($lines, (array)$es);
    }
    return $lines;
}

            
getErrors() public method

Defined in: yii\base\Model::getErrors()

Returns the errors for all attributes or a single attribute.

See also:

public array getErrors ( $attribute null )
$attribute string|null

Attribute name. Use null to retrieve errors for all attributes.

return array

Errors for all attributes or the specified attribute. Empty array is returned if no error. See getErrors() for detailed description. Note that when returning errors for all attributes, the result is a two-dimensional array, like the following:

[
    'username' => [
        'Username is required.',
        'Username must contain only word characters.',
    ],
    'email' => [
        'Email address is invalid.',
    ]
]

                public function getErrors($attribute = null)
{
    if ($attribute === null) {
        return $this->_errors === null ? [] : $this->_errors;
    }
    return isset($this->_errors[$attribute]) ? $this->_errors[$attribute] : [];
}

            
getFirstError() public method

Defined in: yii\base\Model::getFirstError()

Returns the first error of the specified attribute.

See also:

public string|null getFirstError ( $attribute )
$attribute string

Attribute name.

return string|null

The error message. Null is returned if no error.

                public function getFirstError($attribute)
{
    return isset($this->_errors[$attribute]) ? reset($this->_errors[$attribute]) : null;
}

            
getFirstErrors() public method

Defined in: yii\base\Model::getFirstErrors()

Returns the first error of every attribute in the model.

See also:

public array getFirstErrors ( )
return array

The first errors. The array keys are the attribute names, and the array values are the corresponding error messages. An empty array will be returned if there is no error.

                public function getFirstErrors()
{
    if (empty($this->_errors)) {
        return [];
    }
    $errors = [];
    foreach ($this->_errors as $name => $es) {
        if (!empty($es)) {
            $errors[$name] = reset($es);
        }
    }
    return $errors;
}

            
getIsNewRecord() public method

Returns a value indicating whether the current record is new.

public boolean getIsNewRecord ( )
return boolean

Whether the record is new and should be inserted when calling save().

                public function getIsNewRecord()
{
    return $this->_oldAttributes === null;
}

            
getIterator() public method

Defined in: yii\base\Model::getIterator()

Returns an iterator for traversing the attributes in the model.

This method is required by the interface IteratorAggregate.

public ArrayIterator getIterator ( )
return ArrayIterator

An iterator for traversing the items in the list.

                #[\ReturnTypeWillChange]
public function getIterator()
{
    $attributes = $this->getAttributes();
    return new ArrayIterator($attributes);
}

            
getOldAttribute() public method

Returns the old value of the named attribute.

If this record is the result of a query and the attribute is not loaded, null will be returned.

See also hasAttribute().

public mixed getOldAttribute ( $name )
$name string

The attribute name

return mixed

The old attribute value. null if the attribute is not loaded before or does not exist.

                public function getOldAttribute($name)
{
    return isset($this->_oldAttributes[$name]) ? $this->_oldAttributes[$name] : null;
}

            
getOldAttributes() public method

Returns the old attribute values.

public array getOldAttributes ( )
return array

The old attribute values (name-value pairs)

                public function getOldAttributes()
{
    return $this->_oldAttributes === null ? [] : $this->_oldAttributes;
}

            
getOldPrimaryKey() public method

Returns the old primary key value(s).

This refers to the primary key value that is populated into the record after executing a find method (e.g. find(), findOne()). The value remains unchanged even if the primary key attribute is manually assigned with a different value.

public mixed getOldPrimaryKey ( $asArray false )
$asArray boolean

Whether to return the primary key value as an array. If true, the return value will be an array with column name as key and column value as value. If this is false (default), a scalar value will be returned for non-composite primary key.

return mixed

The old primary key value. An array (column name => column value) is returned if the primary key is composite or $asArray is true. A string is returned otherwise (null will be returned if the key value is null).

throws yii\db\Exception

if the AR model does not have a primary key

                public function getOldPrimaryKey($asArray = false)
{
    $keys = static::primaryKey();
    if (empty($keys)) {
        throw new Exception(get_class($this) . ' does not have a primary key. You should either define a primary key for the corresponding table or override the primaryKey() method.');
    }
    if (!$asArray && count($keys) === 1) {
        return isset($this->_oldAttributes[$keys[0]]) ? $this->_oldAttributes[$keys[0]] : null;
    }
    $values = [];
    foreach ($keys as $name) {
        $values[$name] = isset($this->_oldAttributes[$name]) ? $this->_oldAttributes[$name] : null;
    }
    return $values;
}

            
getPrimaryKey() public method

Returns the primary key value(s).

public mixed getPrimaryKey ( $asArray false )
$asArray boolean

Whether to return the primary key value as an array. If true, the return value will be an array with column names as keys and column values as values. Note that for composite primary keys, an array will always be returned regardless of this parameter value.

return mixed

The primary key value. An array (column name => column value) is returned if the primary key is composite or $asArray is true. A string is returned otherwise (null will be returned if the key value is null).

                public function getPrimaryKey($asArray = false)
{
    $keys = static::primaryKey();
    if (!$asArray && count($keys) === 1) {
        return isset($this->_attributes[$keys[0]]) ? $this->_attributes[$keys[0]] : null;
    }
    $values = [];
    foreach ($keys as $name) {
        $values[$name] = isset($this->_attributes[$name]) ? $this->_attributes[$name] : null;
    }
    return $values;
}

            
getRelatedRecords() public method

Returns all populated related records.

See also getRelation().

public array getRelatedRecords ( )
return array

An array of related records indexed by relation names.

                public function getRelatedRecords()
{
    return $this->_related;
}

            
getRelation() public method

Returns the relation object with the specified name.

A relation is defined by a getter method which returns an yii\db\ActiveQueryInterface object. It can be declared in either the Active Record class itself or one of its behaviors.

public yii\db\ActiveQueryInterface|yii\db\ActiveQuery|null getRelation ( $name, $throwException true )
$name string

The relation name, e.g. orders for a relation defined via getOrders() method (case-sensitive).

$throwException boolean

Whether to throw exception if the relation does not exist.

return yii\db\ActiveQueryInterface|yii\db\ActiveQuery|null

The relational query object. If the relation does not exist and $throwException is false, null will be returned.

throws yii\base\InvalidArgumentException

if the named relation does not exist.

                public function getRelation($name, $throwException = true)
{
    $getter = 'get' . $name;
    try {
        // the relation could be defined in a behavior
        $relation = $this->$getter();
    } catch (UnknownMethodException $e) {
        if ($throwException) {
            throw new InvalidArgumentException(get_class($this) . ' has no relation named "' . $name . '".', 0, $e);
        }
        return null;
    }
    if (!$relation instanceof ActiveQueryInterface) {
        if ($throwException) {
            throw new InvalidArgumentException(get_class($this) . ' has no relation named "' . $name . '".');
        }
        return null;
    }
    if (method_exists($this, $getter)) {
        // relation name is case sensitive, trying to validate it when the relation is defined within this class
        $method = new \ReflectionMethod($this, $getter);
        $realName = lcfirst(substr($method->getName(), 3));
        if ($realName !== $name) {
            if ($throwException) {
                throw new InvalidArgumentException('Relation names are case sensitive. ' . get_class($this) . " has a relation named \"$realName\" instead of \"$name\".");
            }
            return null;
        }
    }
    return $relation;
}

            
getScenario() public method

Defined in: yii\base\Model::getScenario()

Returns the scenario that this model is used in.

Scenario affects how validation is performed and which attributes can be massively assigned.

public string getScenario ( )
return string

The scenario that this model is in. Defaults to SCENARIO_DEFAULT.

                public function getScenario()
{
    return $this->_scenario;
}

            
getValidators() public method

Defined in: yii\base\Model::getValidators()

Returns all the validators declared in rules().

This method differs from getActiveValidators() in that the latter only returns the validators applicable to the current $scenario.

Because this method returns an ArrayObject object, you may manipulate it by inserting or removing validators (useful in model behaviors). For example,

$model->validators[] = $newValidator;
public ArrayObject|yii\validators\Validator[] getValidators ( )
return ArrayObject|yii\validators\Validator[]

All the validators declared in the model.

                public function getValidators()
{
    if ($this->_validators === null) {
        $this->_validators = $this->createValidators();
    }
    return $this->_validators;
}

            
hasAttribute() public method

Returns a value indicating whether the model has an attribute with the specified name.

public boolean hasAttribute ( $name )
$name string

The name of the attribute

return boolean

Whether the model has an attribute with the specified name.

                public function hasAttribute($name)
{
    return isset($this->_attributes[$name]) || in_array($name, $this->attributes(), true);
}

            
hasErrors() public method

Defined in: yii\base\Model::hasErrors()

Returns a value indicating whether there is any validation error.

public boolean hasErrors ( $attribute null )
$attribute string|null

Attribute name. Use null to check all attributes.

return boolean

Whether there is any error.

                public function hasErrors($attribute = null)
{
    return $attribute === null ? !empty($this->_errors) : isset($this->_errors[$attribute]);
}

            
hasEventHandlers() public method

Defined in: yii\base\Component::hasEventHandlers()

Returns a value indicating whether there is any handler attached to the named event.

public boolean hasEventHandlers ( $name )
$name string

The event name

return boolean

Whether there is any handler attached to the event.

                public function hasEventHandlers($name)
{
    $this->ensureBehaviors();
    if (!empty($this->_events[$name])) {
        return true;
    }
    foreach ($this->_eventWildcards as $wildcard => $handlers) {
        if (!empty($handlers) && StringHelper::matchWildcard($wildcard, $name)) {
            return true;
        }
    }
    return Event::hasHandlers($this, $name);
}

            
hasMany() public method

Declares a has-many relation.

The declaration is returned in terms of a relational yii\db\ActiveQuery instance through which the related record can be queried and retrieved back.

A has-many relation means that there are multiple related records matching the criteria set by this relation, e.g., a customer has many orders.

For example, to declare the orders relation for Customer class, we can write the following code in the Customer class:

public function getOrders()
{
    return $this->hasMany(Order::class, ['customer_id' => 'id']);
}

Note that in the above, the 'customer_id' key in the $link parameter refers to an attribute name in the related class Order, while the 'id' value refers to an attribute name in the current AR class.

Call methods declared in yii\db\ActiveQuery to further customize the relation.

public yii\db\ActiveQueryInterface hasMany ( $class, $link )
$class string

The class name of the related record

$link array

The primary-foreign key constraint. The keys of the array refer to the attributes of the record associated with the $class model, while the values of the array refer to the corresponding attributes in this AR class.

return yii\db\ActiveQueryInterface

The relational query object.

                public function hasMany($class, $link)
{
    return $this->createRelationQuery($class, $link, true);
}

            
hasMethod() public method

Defined in: yii\base\Component::hasMethod()

Returns a value indicating whether a method is defined.

A method is defined if:

  • the class has a method with the specified name
  • an attached behavior has a method with the given name (when $checkBehaviors is true).
public boolean hasMethod ( $name, $checkBehaviors true )
$name string

The property name

$checkBehaviors boolean

Whether to treat behaviors' methods as methods of this component

return boolean

Whether the method is defined

                public function hasMethod($name, $checkBehaviors = true)
{
    if (method_exists($this, $name)) {
        return true;
    } elseif ($checkBehaviors) {
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $behavior) {
            if ($behavior->hasMethod($name)) {
                return true;
            }
        }
    }
    return false;
}

            
hasOne() public method

Declares a has-one relation.

The declaration is returned in terms of a relational yii\db\ActiveQuery instance through which the related record can be queried and retrieved back.

A has-one relation means that there is at most one related record matching the criteria set by this relation, e.g., a customer has one country.

For example, to declare the country relation for Customer class, we can write the following code in the Customer class:

public function getCountry()
{
    return $this->hasOne(Country::class, ['id' => 'country_id']);
}

Note that in the above, the 'id' key in the $link parameter refers to an attribute name in the related class Country, while the 'country_id' value refers to an attribute name in the current AR class.

Call methods declared in yii\db\ActiveQuery to further customize the relation.

public yii\db\ActiveQueryInterface hasOne ( $class, $link )
$class string

The class name of the related record

$link array

The primary-foreign key constraint. The keys of the array refer to the attributes of the record associated with the $class model, while the values of the array refer to the corresponding attributes in this AR class.

return yii\db\ActiveQueryInterface

The relational query object.

                public function hasOne($class, $link)
{
    return $this->createRelationQuery($class, $link, false);
}

            
hasProperty() public method

Defined in: yii\base\Component::hasProperty()

Returns a value indicating whether a property is defined for this component.

A property is defined if:

  • the class has a getter or setter method associated with the specified name (in this case, property name is case-insensitive);
  • the class has a member variable with the specified name (when $checkVars is true);
  • an attached behavior has a property of the given name (when $checkBehaviors is true).

See also:

public boolean hasProperty ( $name, $checkVars true, $checkBehaviors true )
$name string

The property name

$checkVars boolean

Whether to treat member variables as properties

$checkBehaviors boolean

Whether to treat behaviors' properties as properties of this component

return boolean

Whether the property is defined

                public function hasProperty($name, $checkVars = true, $checkBehaviors = true)
{
    return $this->canGetProperty($name, $checkVars, $checkBehaviors) || $this->canSetProperty($name, false, $checkBehaviors);
}

            
init() public method

Initializes the object.

This method is called at the end of the constructor. The default implementation will trigger an EVENT_INIT event.

public void init ( )

                public function init()
{
    parent::init();
    $this->trigger(self::EVENT_INIT);
}

            
insert() public abstract method

Defined in: yii\db\ActiveRecordInterface::insert()

Inserts the record into the database using the attribute values of this record.

Usage example:

$customer = new Customer;
$customer->name = $name;
$customer->email = $email;
$customer->insert();
public abstract boolean insert ( $runValidation true, $attributes null )
$runValidation boolean

Whether to perform validation (calling validate()) before saving the record. Defaults to true. If the validation fails, the record will not be saved to the database and this method will return false.

$attributes array|null

List of attributes that need to be saved. Defaults to null, meaning all attributes that are loaded from DB will be saved.

return boolean

Whether the attributes are valid and the record is inserted successfully.

                public function insert($runValidation = true, $attributes = null);

            
instance() public static method

Defined in: yii\base\StaticInstanceTrait::instance()

Returns static class instance, which can be used to obtain meta information.

public static static instance ( $refresh false )
$refresh boolean

Whether to re-create static instance even, if it is already cached.

return static

Class instance.

                public static function instance($refresh = false)
{
    $className = get_called_class();
    if ($refresh || !isset(self::$_instances[$className])) {
        self::$_instances[$className] = Yii::createObject($className);
    }
    return self::$_instances[$className];
}

            
instantiate() public static method

Creates an active record instance.

This method is called together with populateRecord() by yii\db\ActiveQuery. It is not meant to be used for creating new records directly.

You may override this method if the instance being created depends on the row data to be populated into the record. For example, by creating a record based on the value of a column, you may implement the so-called single-table inheritance mapping.

public static static instantiate ( $row )
$row array

Row data to be populated into the record.

return static

The newly created active record

                public static function instantiate($row)
{
    return new static();
}

            
isAttributeActive() public method

Defined in: yii\base\Model::isAttributeActive()

Returns a value indicating whether the attribute is active in the current scenario.

See also activeAttributes().

public boolean isAttributeActive ( $attribute )
$attribute string

Attribute name

return boolean

Whether the attribute is active in the current scenario

                public function isAttributeActive($attribute)
{
    return in_array($attribute, $this->activeAttributes(), true);
}

            
isAttributeChanged() public method

Returns a value indicating whether the named attribute has been changed.

public boolean isAttributeChanged ( $name, $identical true )
$name string

The name of the attribute.

$identical boolean

Whether the comparison of new and old value is made for identical values using ===, defaults to true. Otherwise == is used for comparison. This parameter is available since version 2.0.4.

return boolean

Whether the attribute has been changed

                public function isAttributeChanged($name, $identical = true)
{
    if (isset($this->_attributes[$name], $this->_oldAttributes[$name])) {
        if ($identical) {
            return $this->_attributes[$name] !== $this->_oldAttributes[$name];
        }
        return $this->_attributes[$name] != $this->_oldAttributes[$name];
    }
    return isset($this->_attributes[$name]) || isset($this->_oldAttributes[$name]);
}

            
isAttributeRequired() public method

Defined in: yii\base\Model::isAttributeRequired()

Returns a value indicating whether the attribute is required.

This is determined by checking if the attribute is associated with a required validation rule in the current $scenario.

Note that when the validator has a conditional validation applied using $when this method will return false regardless of the when condition because it may be called be before the model is loaded with data.

public boolean isAttributeRequired ( $attribute )
$attribute string

Attribute name

return boolean

Whether the attribute is required

                public function isAttributeRequired($attribute)
{
    foreach ($this->getActiveValidators($attribute) as $validator) {
        if ($validator instanceof RequiredValidator && $validator->when === null) {
            return true;
        }
    }
    return false;
}

            
isAttributeSafe() public method

Defined in: yii\base\Model::isAttributeSafe()

Returns a value indicating whether the attribute is safe for massive assignments.

See also safeAttributes().

public boolean isAttributeSafe ( $attribute )
$attribute string

Attribute name

return boolean

Whether the attribute is safe for massive assignments

                public function isAttributeSafe($attribute)
{
    return in_array($attribute, $this->safeAttributes(), true);
}

            
isPrimaryKey() public static method

Returns a value indicating whether the given set of attributes represents the primary key for this model.

public static boolean isPrimaryKey ( $keys )
$keys array

The set of attributes to check

return boolean

Whether the given set of attributes represents the primary key for this model

                public static function isPrimaryKey($keys)
{
    $pks = static::primaryKey();
    if (count($keys) === count($pks)) {
        return count(array_intersect($keys, $pks)) === count($pks);
    }
    return false;
}

            
isRelationPopulated() public method

Check whether the named relation has been populated with records.

See also getRelation().

public boolean isRelationPopulated ( $name )
$name string

The relation name, e.g. orders for a relation defined via getOrders() method (case-sensitive).

return boolean

Whether relation has been populated with records.

                public function isRelationPopulated($name)
{
    return array_key_exists($name, $this->_related);
}

            
link() public method

Establishes the relationship between two models.

The relationship is established by setting the foreign key value(s) in one model to be the corresponding primary key value(s) in the other model. The model with the foreign key will be saved into database without performing validation and without events/behaviors.

If the relationship involves a junction table, a new row will be inserted into the junction table which contains the primary key values from both models.

Note that this method requires that the primary key value is not null.

public void link ( $name, $model, $extraColumns = [] )
$name string

The case sensitive name of the relationship, e.g. orders for a relation defined via getOrders() method.

$model yii\db\ActiveRecordInterface

The model to be linked with the current one.

$extraColumns array

Additional column values to be saved into the junction table. This parameter is only meaningful for a relationship involving a junction table (i.e., a relation set with yii\db\ActiveRelationTrait::via() or yii\db\ActiveQuery::viaTable().)

throws yii\base\InvalidCallException

if the method is unable to link two models.

load() public method

Defined in: yii\base\Model::load()

Populates the model with input data.

This method provides a convenient shortcut for:

if (isset($_POST['FormName'])) {
    $model->attributes = $_POST['FormName'];
    if ($model->save()) {
        // handle success
    }
}

which, with load() can be written as:

if ($model->load($_POST) && $model->save()) {
    // handle success
}

load() gets the 'FormName' from the model's formName() method (which you may override), unless the $formName parameter is given. If the form name is empty, load() populates the model with the whole of $data, instead of $data['FormName'].

Note, that the data being populated is subject to the safety check by setAttributes().

public boolean load ( $data, $formName null )
$data array

The data array to load, typically $_POST or $_GET.

$formName string|null

The form name to use to load the data into the model, empty string when form not use. If not set, formName() is used.

return boolean

Whether load() found the expected form in $data.

                public function load($data, $formName = null)
{
    $scope = $formName === null ? $this->formName() : $formName;
    if ($scope === '' && !empty($data)) {
        $this->setAttributes($data);
        return true;
    } elseif (isset($data[$scope])) {
        $this->setAttributes($data[$scope]);
        return true;
    }
    return false;
}

            
loadMultiple() public static method

Defined in: yii\base\Model::loadMultiple()

Populates a set of models with the data from end user.

This method is mainly used to collect tabular data input. The data to be loaded for each model is $data[formName][index], where formName refers to the value of formName(), and index the index of the model in the $models array. If formName() is empty, $data[index] will be used to populate each model. The data being populated to each model is subject to the safety check by setAttributes().

public static boolean loadMultiple ( $models, $data, $formName null )
$models array

The models to be populated. Note that all models should have the same class.

$data array

The data array. This is usually $_POST or $_GET, but can also be any valid array supplied by end user.

$formName string|null

The form name to be used for loading the data into the models. If not set, it will use the formName() value of the first model in $models. This parameter is available since version 2.0.1.

return boolean

Whether at least one of the models is successfully populated.

                public static function loadMultiple($models, $data, $formName = null)
{
    if ($formName === null) {
        /* @var $first Model|false */
        $first = reset($models);
        if ($first === false) {
            return false;
        }
        $formName = $first->formName();
    }
    $success = false;
    foreach ($models as $i => $model) {
        /* @var $model Model */
        if ($formName == '') {
            if (!empty($data[$i]) && $model->load($data[$i], '')) {
                $success = true;
            }
        } elseif (!empty($data[$formName][$i]) && $model->load($data[$formName][$i], '')) {
            $success = true;
        }
    }
    return $success;
}

            
markAttributeDirty() public method

Marks an attribute dirty.

This method may be called to force updating a record when calling update(), even if there is no change being made to the record.

public void markAttributeDirty ( $name )
$name string

The attribute name

                public function markAttributeDirty($name)
{
    unset($this->_oldAttributes[$name]);
}

            
off() public method

Defined in: yii\base\Component::off()

Detaches an existing event handler from this component.

This method is the opposite of on().

Note: in case wildcard pattern is passed for event name, only the handlers registered with this wildcard will be removed, while handlers registered with plain names matching this wildcard will remain.

See also on().

public boolean off ( $name, $handler null )
$name string

Event name

$handler callable|null

The event handler to be removed. If it is null, all handlers attached to the named event will be removed.

return boolean

If a handler is found and detached

                public function off($name, $handler = null)
{
    $this->ensureBehaviors();
    if (empty($this->_events[$name]) && empty($this->_eventWildcards[$name])) {
        return false;
    }
    if ($handler === null) {
        unset($this->_events[$name], $this->_eventWildcards[$name]);
        return true;
    }
    $removed = false;
    // plain event names
    if (isset($this->_events[$name])) {
        foreach ($this->_events[$name] as $i => $event) {
            if ($event[0] === $handler) {
                unset($this->_events[$name][$i]);
                $removed = true;
            }
        }
        if ($removed) {
            $this->_events[$name] = array_values($this->_events[$name]);
            return true;
        }
    }
    // wildcard event names
    if (isset($this->_eventWildcards[$name])) {
        foreach ($this->_eventWildcards[$name] as $i => $event) {
            if ($event[0] === $handler) {
                unset($this->_eventWildcards[$name][$i]);
                $removed = true;
            }
        }
        if ($removed) {
            $this->_eventWildcards[$name] = array_values($this->_eventWildcards[$name]);
            // remove empty wildcards to save future redundant regex checks:
            if (empty($this->_eventWildcards[$name])) {
                unset($this->_eventWildcards[$name]);
            }
        }
    }
    return $removed;
}

            
offsetExists() public method

Returns whether there is an element at the specified offset.

This method is required by the interface ArrayAccess.

public boolean offsetExists ( $offset )
$offset mixed

The offset to check on

return boolean

Whether there is an element at the specified offset.

                #[\ReturnTypeWillChange]
public function offsetExists($offset)
{
    return $this->__isset($offset);
}

            
offsetGet() public method

Defined in: yii\base\Model::offsetGet()

Returns the element at the specified offset.

This method is required by the SPL interface ArrayAccess. It is implicitly called when you use something like $value = $model[$offset];.

public mixed offsetGet ( $offset )
$offset string

The offset to retrieve element.

return mixed

The element at the offset, null if no element is found at the offset

                #[\ReturnTypeWillChange]
public function offsetGet($offset)
{
    return $this->$offset;
}

            
offsetSet() public method

Defined in: yii\base\Model::offsetSet()

Sets the element at the specified offset.

This method is required by the SPL interface ArrayAccess. It is implicitly called when you use something like $model[$offset] = $value;.

public void offsetSet ( $offset, $value )
$offset string

The offset to set element

$value mixed

The element value

                #[\ReturnTypeWillChange]
public function offsetSet($offset, $value)
{
    $this->$offset = $value;
}

            
offsetUnset() public method

Sets the element value at the specified offset to null.

This method is required by the SPL interface ArrayAccess. It is implicitly called when you use something like unset($model[$offset]).

public void offsetUnset ( $offset )
$offset mixed

The offset to unset element

                public function offsetUnset($offset)
{
    if (property_exists($this, $offset)) {
        $this->$offset = null;
    } else {
        unset($this->$offset);
    }
}

            
on() public method

Defined in: yii\base\Component::on()

Attaches an event handler to an event.

The event handler must be a valid PHP callback. The following are some examples:

function ($event) { ... }         // anonymous function
[$object, 'handleClick']          // $object->handleClick()
['Page', 'handleClick']           // Page::handleClick()
'handleClick'                     // global function handleClick()

The event handler must be defined with the following signature,

function ($event)

where $event is an yii\base\Event object which includes parameters associated with the event.

Since 2.0.14 you can specify event name as a wildcard pattern:

$component->on('event.group.*', function ($event) {
    Yii::trace($event->name . ' is triggered.');
});

See also off().

public void on ( $name, $handler, $data null, $append true )
$name string

The event name

$handler callable

The event handler

$data mixed

The data to be passed to the event handler when the event is triggered. When the event handler is invoked, this data can be accessed via yii\base\Event::$data.

$append boolean

Whether to append new event handler to the end of the existing handler list. If false, the new handler will be inserted at the beginning of the existing handler list.

                public function on($name, $handler, $data = null, $append = true)
{
    $this->ensureBehaviors();
    if (strpos($name, '*') !== false) {
        if ($append || empty($this->_eventWildcards[$name])) {
            $this->_eventWildcards[$name][] = [$handler, $data];
        } else {
            array_unshift($this->_eventWildcards[$name], [$handler, $data]);
        }
        return;
    }
    if ($append || empty($this->_events[$name])) {
        $this->_events[$name][] = [$handler, $data];
    } else {
        array_unshift($this->_events[$name], [$handler, $data]);
    }
}

            
onUnsafeAttribute() public method

Defined in: yii\base\Model::onUnsafeAttribute()

This method is invoked when an unsafe attribute is being massively assigned.

The default implementation will log a warning message if YII_DEBUG is on. It does nothing otherwise.

public void onUnsafeAttribute ( $name, $value )
$name string

The unsafe attribute name

$value mixed

The attribute value

                public function onUnsafeAttribute($name, $value)
{
    if (YII_DEBUG) {
        Yii::debug("Failed to set unsafe attribute '$name' in '" . get_class($this) . "'.", __METHOD__);
    }
}

            
optimisticLock() public method

Returns the name of the column that stores the lock version for implementing optimistic locking.

Optimistic locking allows multiple users to access the same record for edits and avoids potential conflicts. In case when a user attempts to save the record upon some staled data (because another user has modified the data), a yii\db\StaleObjectException exception will be thrown, and the update or deletion is skipped.

Optimistic locking is only supported by update() and delete().

To use Optimistic locking:

  1. Create a column to store the version number of each row. The column type should be BIGINT DEFAULT 0. Override this method to return the name of this column.
  2. Ensure the version value is submitted and loaded to your model before any update or delete. Or add OptimisticLockBehavior to your model class in order to automate the process.
  3. In the Web form that collects the user input, add a hidden field that stores the lock version of the record being updated.
  4. In the controller action that does the data updating, try to catch the yii\db\StaleObjectException and implement necessary business logic (e.g. merging the changes, prompting stated data) to resolve the conflict.
public string|null optimisticLock ( )
return string|null

The column name that stores the lock version of a table row. If null is returned (default implemented), optimistic locking will not be supported.

                public function optimisticLock()
{
    return null;
}

            
populateRecord() public static method

Populates an active record object using a row of data from the database/storage.

This is an internal method meant to be called to create active record objects after fetching data from the database. It is mainly used by yii\db\ActiveQuery to populate the query results into active records.

When calling this method manually you should call afterFind() on the created record to trigger the afterFind Event.

public static void populateRecord ( $record, $row )
$record yii\db\BaseActiveRecord

The record to be populated. In most cases this will be an instance created by instantiate() beforehand.

$row array

Attribute values (name => value)

                public static function populateRecord($record, $row)
{
    $columns = array_flip($record->attributes());
    foreach ($row as $name => $value) {
        if (isset($columns[$name])) {
            $record->_attributes[$name] = $value;
        } elseif ($record->canSetProperty($name)) {
            $record->$name = $value;
        }
    }
    $record->_oldAttributes = $record->_attributes;
    $record->_related = [];
    $record->_relationsDependencies = [];
}

            
populateRelation() public method

Populates the named relation with the related records.

Note that this method does not check if the relation exists or not.

See also getRelation().

public void populateRelation ( $name, $records )
$name string

The relation name, e.g. orders for a relation defined via getOrders() method (case-sensitive).

$records yii\db\ActiveRecordInterface|array|null

The related records to be populated into the relation.

                public function populateRelation($name, $records)
{
    foreach ($this->_relationsDependencies as &$relationNames) {
        unset($relationNames[$name]);
    }
    $this->_related[$name] = $records;
}

            
primaryKey() public abstract static method

Defined in: yii\db\ActiveRecordInterface::primaryKey()

Returns the primary key name(s) for this AR class.

Note that an array should be returned even when the record only has a single primary key.

For the primary key value see getPrimaryKey() instead.

public abstract static string[] primaryKey ( )
return string[]

The primary key name(s) for this AR class.

                public static function primaryKey();

            
refresh() public method

Repopulates this active record with the latest data.

If the refresh is successful, an EVENT_AFTER_REFRESH event will be triggered. This event is available since version 2.0.8.

public boolean refresh ( )
return boolean

Whether the row still exists in the database. If true, the latest data will be populated to this active record. Otherwise, this record will remain unchanged.

                public function refresh()
{
    /* @var $record BaseActiveRecord */
    $record = static::findOne($this->getPrimaryKey(true));
    return $this->refreshInternal($record);
}

            
refreshInternal() protected method (available since version 2.0.13)

Repopulates this active record with the latest data from a newly fetched instance.

See also refresh().

protected boolean refreshInternal ( $record )
$record yii\db\BaseActiveRecord

The record to take attributes from.

return boolean

Whether refresh was successful.

                protected function refreshInternal($record)
{
    if ($record === null) {
        return false;
    }
    foreach ($this->attributes() as $name) {
        $this->_attributes[$name] = isset($record->_attributes[$name]) ? $record->_attributes[$name] : null;
    }
    $this->_oldAttributes = $record->_oldAttributes;
    $this->_related = [];
    $this->_relationsDependencies = [];
    $this->afterRefresh();
    return true;
}

            
resolveFields() protected method

Defined in: yii\base\ArrayableTrait::resolveFields()

Determines which fields can be returned by toArray().

This method will first extract the root fields from the given fields. Then it will check the requested root fields against those declared in fields() and extraFields() to determine which fields can be returned.

protected array resolveFields ( array $fields, array $expand )
$fields array

The fields being requested for exporting

$expand array

The additional fields being requested for exporting

return array

The list of fields to be exported. The array keys are the field names, and the array values are the corresponding object property names or PHP callables returning the field values.

                protected function resolveFields(array $fields, array $expand)
{
    $fields = $this->extractRootFields($fields);
    $expand = $this->extractRootFields($expand);
    $result = [];
    foreach ($this->fields() as $field => $definition) {
        if (is_int($field)) {
            $field = $definition;
        }
        if (empty($fields) || in_array($field, $fields, true)) {
            $result[$field] = $definition;
        }
    }
    if (empty($expand)) {
        return $result;
    }
    foreach ($this->extraFields() as $field => $definition) {
        if (is_int($field)) {
            $field = $definition;
        }
        if (in_array($field, $expand, true)) {
            $result[$field] = $definition;
        }
    }
    return $result;
}

            
rules() public method

Defined in: yii\base\Model::rules()

Returns the validation rules for attributes.

Validation rules are used by validate() to check if attribute values are valid. Child classes may override this method to declare different validation rules.

Each rule is an array with the following structure:

[
    ['attribute1', 'attribute2'],
    'validator type',
    'on' => ['scenario1', 'scenario2'],
    //...other parameters...
]

where

  • attribute list: required, specifies the attributes array to be validated, for single attribute you can pass a string;
  • validator type: required, specifies the validator to be used. It can be a built-in validator name, a method name of the model class, an anonymous function, or a validator class name.
  • on: optional, specifies the scenarios array in which the validation rule can be applied. If this option is not set, the rule will apply to all scenarios.
  • additional name-value pairs can be specified to initialize the corresponding validator properties. Please refer to individual validator class API for possible properties.

A validator can be either an object of a class extending yii\validators\Validator, or a model class method (called inline validator) that has the following signature:

// $params refers to validation parameters given in the rule
function validatorName($attribute, $params)

In the above $attribute refers to the attribute currently being validated while $params contains an array of validator configuration options such as max in case of string validator. The value of the attribute currently being validated can be accessed as $this->$attribute. Note the $ before attribute; this is taking the value of the variable $attribute and using it as the name of the property to access.

Yii also provides a set of built-in validators. Each one has an alias name which can be used when specifying a validation rule.

Below are some examples:

[
    // built-in "required" validator
    [['username', 'password'], 'required'],
    // built-in "string" validator customized with "min" and "max" properties
    ['username', 'string', 'min' => 3, 'max' => 12],
    // built-in "compare" validator that is used in "register" scenario only
    ['password', 'compare', 'compareAttribute' => 'password2', 'on' => 'register'],
    // an inline validator defined via the "authenticate()" method in the model class
    ['password', 'authenticate', 'on' => 'login'],
    // a validator of class "DateRangeValidator"
    ['dateRange', 'DateRangeValidator'],
];

Note, in order to inherit rules defined in the parent class, a child class needs to merge the parent rules with child rules using functions such as array_merge().

See also scenarios().

public array rules ( )
return array

Validation rules

                public function rules()
{
    return [];
}

            
safeAttributes() public method

Defined in: yii\base\Model::safeAttributes()

Returns the attribute names that are safe to be massively assigned in the current scenario.

public string[] safeAttributes ( )
return string[]

Safe attribute names

                public function safeAttributes()
{
    $scenario = $this->getScenario();
    $scenarios = $this->scenarios();
    if (!isset($scenarios[$scenario])) {
        return [];
    }
    $attributes = [];
    foreach ($scenarios[$scenario] as $attribute) {
        if (strncmp($attribute, '!', 1) !== 0 && !in_array('!' . $attribute, $scenarios[$scenario])) {
            $attributes[] = $attribute;
        }
    }
    return $attributes;
}

            
save() public method

Saves the current record.

This method will call insert() when $isNewRecord is true, or update() when $isNewRecord is false.

For example, to save a customer record:

$customer = new Customer; // or $customer = Customer::findOne($id);
$customer->name = $name;
$customer->email = $email;
$customer->save();
public boolean save ( $runValidation true, $attributeNames null )
$runValidation boolean

Whether to perform validation (calling validate()) before saving the record. Defaults to true. If the validation fails, the record will not be saved to the database and this method will return false.

$attributeNames array|null

List of attribute names that need to be saved. Defaults to null, meaning all attributes that are loaded from DB will be saved.

return boolean

Whether the saving succeeded (i.e. no validation errors occurred).

                public function save($runValidation = true, $attributeNames = null)
{
    if ($this->getIsNewRecord()) {
        return $this->insert($runValidation, $attributeNames);
    }
    return $this->update($runValidation, $attributeNames) !== false;
}

            
scenarios() public method

Defined in: yii\base\Model::scenarios()

Returns a list of scenarios and the corresponding active attributes.

An active attribute is one that is subject to validation in the current scenario. The returned array should be in the following format:

[
    'scenario1' => ['attribute11', 'attribute12', ...],
    'scenario2' => ['attribute21', 'attribute22', ...],
    ...
]

By default, an active attribute is considered safe and can be massively assigned. If an attribute should NOT be massively assigned (thus considered unsafe), please prefix the attribute with an exclamation character (e.g. '!rank').

The default implementation of this method will return all scenarios found in the rules() declaration. A special scenario named SCENARIO_DEFAULT will contain all attributes found in the rules(). Each scenario will be associated with the attributes that are being validated by the validation rules that apply to the scenario.

public array scenarios ( )
return array

A list of scenarios and the corresponding active attributes.

                public function scenarios()
{
    $scenarios = [self::SCENARIO_DEFAULT => []];
    foreach ($this->getValidators() as $validator) {
        foreach ($validator->on as $scenario) {
            $scenarios[$scenario] = [];
        }
        foreach ($validator->except as $scenario) {
            $scenarios[$scenario] = [];
        }
    }
    $names = array_keys($scenarios);
    foreach ($this->getValidators() as $validator) {
        if (empty($validator->on) && empty($validator->except)) {
            foreach ($names as $name) {
                foreach ($validator->attributes as $attribute) {
                    $scenarios[$name][$attribute] = true;
                }
            }
        } elseif (empty($validator->on)) {
            foreach ($names as $name) {
                if (!in_array($name, $validator->except, true)) {
                    foreach ($validator->attributes as $attribute) {
                        $scenarios[$name][$attribute] = true;
                    }
                }
            }
        } else {
            foreach ($validator->on as $name) {
                foreach ($validator->attributes as $attribute) {
                    $scenarios[$name][$attribute] = true;
                }
            }
        }
    }
    foreach ($scenarios as $scenario => $attributes) {
        if (!empty($attributes)) {
            $scenarios[$scenario] = array_keys($attributes);
        }
    }
    return $scenarios;
}

            
setAttribute() public method

Sets the named attribute value.

See also hasAttribute().

public void setAttribute ( $name, $value )
$name string

The attribute name

$value mixed

The attribute value.

throws yii\base\InvalidArgumentException

if the named attribute does not exist.

                public function setAttribute($name, $value)
{
    if ($this->hasAttribute($name)) {
        if (
            !empty($this->_relationsDependencies[$name])
            && (!array_key_exists($name, $this->_attributes) || $this->_attributes[$name] !== $value)
        ) {
            $this->resetDependentRelations($name);
        }
        $this->_attributes[$name] = $value;
    } else {
        throw new InvalidArgumentException(get_class($this) . ' has no attribute named "' . $name . '".');
    }
}

            
setAttributes() public method

Defined in: yii\base\Model::setAttributes()

Sets the attribute values in a massive way.

See also:

public void setAttributes ( $values, $safeOnly true )
$values array

Attribute values (name => value) to be assigned to the model.

$safeOnly boolean

Whether the assignments should only be done to the safe attributes. A safe attribute is one that is associated with a validation rule in the current $scenario.

                public function setAttributes($values, $safeOnly = true)
{
    if (is_array($values)) {
        $attributes = array_flip($safeOnly ? $this->safeAttributes() : $this->attributes());
        foreach ($values as $name => $value) {
            if (isset($attributes[$name])) {
                $this->$name = $value;
            } elseif ($safeOnly) {
                $this->onUnsafeAttribute($name, $value);
            }
        }
    }
}

            
setIsNewRecord() public method

Sets the value indicating whether the record is new.

See also getIsNewRecord().

public void setIsNewRecord ( $value )
$value boolean

Whether the record is new and should be inserted when calling save().

                public function setIsNewRecord($value)
{
    $this->_oldAttributes = $value ? null : $this->_attributes;
}

            
setOldAttribute() public method

Sets the old value of the named attribute.

See also hasAttribute().

public void setOldAttribute ( $name, $value )
$name string

The attribute name

$value mixed

The old attribute value.

throws yii\base\InvalidArgumentException

if the named attribute does not exist.

                public function setOldAttribute($name, $value)
{
    if (isset($this->_oldAttributes[$name]) || $this->hasAttribute($name)) {
        $this->_oldAttributes[$name] = $value;
    } else {
        throw new InvalidArgumentException(get_class($this) . ' has no attribute named "' . $name . '".');
    }
}

            
setOldAttributes() public method

Sets the old attribute values.

All existing old attribute values will be discarded.

public void setOldAttributes ( $values )
$values array|null

Old attribute values to be set. If set to null this record is considered to be new.

                public function setOldAttributes($values)
{
    $this->_oldAttributes = $values;
}

            
setScenario() public method

Defined in: yii\base\Model::setScenario()

Sets the scenario for the model.

Note that this method does not check if the scenario exists or not. The method validate() will perform this check.

public void setScenario ( $value )
$value string

The scenario that this model is in.

                public function setScenario($value)
{
    $this->_scenario = $value;
}

            
toArray() public method

Defined in: yii\base\ArrayableTrait::toArray()

Converts the model into an array.

This method will first identify which fields to be included in the resulting array by calling resolveFields(). It will then turn the model into an array with these fields. If $recursive is true, any embedded objects will also be converted into arrays. When embedded objects are yii\base\Arrayable, their respective nested fields will be extracted and passed to toArray().

If the model implements the yii\web\Linkable interface, the resulting array will also have a _link element which refers to a list of links as specified by the interface.

public array toArray ( array $fields = [], array $expand = [], $recursive true )
$fields array

The fields being requested. If empty or if it contains '*', all fields as specified by fields() will be returned. Fields can be nested, separated with dots (.). e.g.: item.field.sub-field $recursive must be true for nested fields to be extracted. If $recursive is false, only the root fields will be extracted.

$expand array

The additional fields being requested for exporting. Only fields declared in extraFields() will be considered. Expand can also be nested, separated with dots (.). e.g.: item.expand1.expand2 $recursive must be true for nested expands to be extracted. If $recursive is false, only the root expands will be extracted.

$recursive boolean

Whether to recursively return array representation of embedded objects.

return array

The array representation of the object

                public function toArray(array $fields = [], array $expand = [], $recursive = true)
{
    $data = [];
    foreach ($this->resolveFields($fields, $expand) as $field => $definition) {
        $attribute = is_string($definition) ? $this->$definition : $definition($this, $field);
        if ($recursive) {
            $nestedFields = $this->extractFieldsFor($fields, $field);
            $nestedExpand = $this->extractFieldsFor($expand, $field);
            if ($attribute instanceof Arrayable) {
                $attribute = $attribute->toArray($nestedFields, $nestedExpand);
            } elseif ($attribute instanceof \JsonSerializable) {
                $attribute = $attribute->jsonSerialize();
            } elseif (is_array($attribute)) {
                $attribute = array_map(
                    function ($item) use ($nestedFields, $nestedExpand) {
                        if ($item instanceof Arrayable) {
                            return $item->toArray($nestedFields, $nestedExpand);
                        } elseif ($item instanceof \JsonSerializable) {
                            return $item->jsonSerialize();
                        }
                        return $item;
                    },
                    $attribute
                );
            }
        }
        $data[$field] = $attribute;
    }
    if ($this instanceof Linkable) {
        $data['_links'] = Link::serialize($this->getLinks());
    }
    return $recursive ? ArrayHelper::toArray($data) : $data;
}

            
trigger() public method

Defined in: yii\base\Component::trigger()

Triggers an event.

This method represents the happening of an event. It invokes all attached handlers for the event including class-level handlers.

public void trigger ( $name, yii\base\Event $event null )
$name string

The event name

$event yii\base\Event|null

The event instance. If not set, a default yii\base\Event object will be created.

                public function trigger($name, Event $event = null)
{
    $this->ensureBehaviors();
    $eventHandlers = [];
    foreach ($this->_eventWildcards as $wildcard => $handlers) {
        if (StringHelper::matchWildcard($wildcard, $name)) {
            $eventHandlers[] = $handlers;
        }
    }
    if (!empty($this->_events[$name])) {
        $eventHandlers[] = $this->_events[$name];
    }
    if (!empty($eventHandlers)) {
        $eventHandlers = call_user_func_array('array_merge', $eventHandlers);
        if ($event === null) {
            $event = new Event();
        }
        if ($event->sender === null) {
            $event->sender = $this;
        }
        $event->handled = false;
        $event->name = $name;
        foreach ($eventHandlers as $handler) {
            $event->data = $handler[1];
            call_user_func($handler[0], $event);
            // stop further handling if the event is handled
            if ($event->handled) {
                return;
            }
        }
    }
    // invoke class-level attached handlers
    Event::trigger($this, $name, $event);
}

            
unlink() public method

Destroys the relationship between two models.

The model with the foreign key of the relationship will be deleted if $delete is true. Otherwise, the foreign key will be set null and the model will be saved without validation.

public void unlink ( $name, $model, $delete false )
$name string

The case sensitive name of the relationship, e.g. orders for a relation defined via getOrders() method.

$model yii\db\ActiveRecordInterface

The model to be unlinked from the current one. You have to make sure that the model is really related with the current model as this method does not check this.

$delete boolean

Whether to delete the model that contains the foreign key. If false, the model's foreign key will be set null and saved. If true, the model containing the foreign key will be deleted.

throws yii\base\InvalidCallException

if the models cannot be unlinked

throws yii\db\Exception
throws yii\db\StaleObjectException

unlinkAll() public method

Destroys the relationship in current model.

The model with the foreign key of the relationship will be deleted if $delete is true. Otherwise, the foreign key will be set null and the model will be saved without validation.

Note that to destroy the relationship without removing records make sure your keys can be set to null

public void unlinkAll ( $name, $delete false )
$name string

The case sensitive name of the relationship, e.g. orders for a relation defined via getOrders() method.

$delete boolean

Whether to delete the model that contains the foreign key.

Note that the deletion will be performed using deleteAll(), which will not trigger any events on the related models. If you need EVENT_BEFORE_DELETE or EVENT_AFTER_DELETE to be triggered, you need to find the models first and then call delete() on each of them.

                public function unlinkAll($name, $delete = false)
{
    /* @var $relation ActiveQueryInterface|ActiveQuery */
    $relation = $this->getRelation($name);
    if ($relation->via !== null) {
        if (is_array($relation->via)) {
            /* @var $viaRelation ActiveQuery */
            list($viaName, $viaRelation) = $relation->via;
            $viaClass = $viaRelation->modelClass;
            unset($this->_related[$viaName]);
        } else {
            $viaRelation = $relation->via;
            $viaTable = reset($relation->via->from);
        }
        $condition = [];
        $nulls = [];
        foreach ($viaRelation->link as $a => $b) {
            $nulls[$a] = null;
            $condition[$a] = $this->$b;
        }
        if (!empty($viaRelation->where)) {
            $condition = ['and', $condition, $viaRelation->where];
        }
        if (property_exists($viaRelation, 'on') && !empty($viaRelation->on)) {
            $condition = ['and', $condition, $viaRelation->on];
        }
        if (is_array($relation->via)) {
            /* @var $viaClass ActiveRecordInterface */
            if ($delete) {
                $viaClass::deleteAll($condition);
            } else {
                $viaClass::updateAll($nulls, $condition);
            }
        } else {
            /* @var $viaTable string */
            /* @var $command Command */
            $command = static::getDb()->createCommand();
            if ($delete) {
                $command->delete($viaTable, $condition)->execute();
            } else {
                $command->update($viaTable, $nulls, $condition)->execute();
            }
        }
    } else {
        /* @var $relatedModel ActiveRecordInterface */
        $relatedModel = $relation->modelClass;
        if (!$delete && count($relation->link) === 1 && is_array($this->{$b = reset($relation->link)})) {
            // relation via array valued attribute
            $this->$b = [];
            $this->save(false);
        } else {
            $nulls = [];
            $condition = [];
            foreach ($relation->link as $a => $b) {
                $nulls[$a] = null;
                $condition[$a] = $this->$b;
            }
            if (!empty($relation->where)) {
                $condition = ['and', $condition, $relation->where];
            }
            if (property_exists($relation, 'on') && !empty($relation->on)) {
                $condition = ['and', $condition, $relation->on];
            }
            if ($delete) {
                $relatedModel::deleteAll($condition);
            } else {
                $relatedModel::updateAll($nulls, $condition);
            }
        }
    }
    unset($this->_related[$name]);
}

            
update() public method

Saves the changes to this active record into the associated database table.

This method performs the following steps in order:

  1. call beforeValidate() when $runValidation is true. If beforeValidate() returns false, the rest of the steps will be skipped;
  2. call afterValidate() when $runValidation is true. If validation failed, the rest of the steps will be skipped;
  3. call beforeSave(). If beforeSave() returns false, the rest of the steps will be skipped;
  4. save the record into database. If this fails, it will skip the rest of the steps;
  5. call afterSave();

In the above step 1, 2, 3 and 5, events EVENT_BEFORE_VALIDATE, EVENT_AFTER_VALIDATE, EVENT_BEFORE_UPDATE, and EVENT_AFTER_UPDATE will be raised by the corresponding methods.

Only the changed attribute values will be saved into database.

For example, to update a customer record:

$customer = Customer::findOne($id);
$customer->name = $name;
$customer->email = $email;
$customer->update();

Note that it is possible the update does not affect any row in the table. In this case, this method will return 0. For this reason, you should use the following code to check if update() is successful or not:

if ($customer->update() !== false) {
    // update successful
} else {
    // update failed
}
public integer|false update ( $runValidation true, $attributeNames null )
$runValidation boolean

Whether to perform validation (calling validate()) before saving the record. Defaults to true. If the validation fails, the record will not be saved to the database and this method will return false.

$attributeNames array|null

List of attribute names that need to be saved. Defaults to null, meaning all attributes that are loaded from DB will be saved.

return integer|false

The number of rows affected, or false if validation fails or beforeSave() stops the updating process.

throws yii\db\StaleObjectException

if optimistic locking is enabled and the data being updated is outdated.

throws yii\db\Exception

in case update failed.

                public function update($runValidation = true, $attributeNames = null)
{
    if ($runValidation && !$this->validate($attributeNames)) {
        return false;
    }
    return $this->updateInternal($attributeNames);
}

            
updateAll() public static method

Updates the whole table using the provided attribute values and conditions.

For example, to change the status to be 1 for all customers whose status is 2:

Customer::updateAll(['status' => 1], 'status = 2');
public static integer updateAll ( $attributes, $condition '' )
$attributes array

Attribute values (name-value pairs) to be saved into the table

$condition string|array

The conditions that will be put in the WHERE part of the UPDATE SQL. Please refer to yii\db\Query::where() on how to specify this parameter.

return integer

The number of rows updated

throws yii\base\NotSupportedException

if not overridden

                public static function updateAll($attributes, $condition = '')
{
    throw new NotSupportedException(__METHOD__ . ' is not supported.');
}

            
updateAllCounters() public static method

Updates the whole table using the provided counter changes and conditions.

For example, to increment all customers' age by 1,

Customer::updateAllCounters(['age' => 1]);
public static integer updateAllCounters ( $counters, $condition '' )
$counters array

The counters to be updated (attribute name => increment value). Use negative values if you want to decrement the counters.

$condition string|array

The conditions that will be put in the WHERE part of the UPDATE SQL. Please refer to yii\db\Query::where() on how to specify this parameter.

return integer

The number of rows updated

throws yii\base\NotSupportedException

if not overrided

                public static function updateAllCounters($counters, $condition = '')
{
    throw new NotSupportedException(__METHOD__ . ' is not supported.');
}

            
updateAttributes() public method

Updates the specified attributes.

This method is a shortcut to update() when data validation is not needed and only a small set attributes need to be updated.

You may specify the attributes to be updated as name list or name-value pairs. If the latter, the corresponding attribute values will be modified accordingly. The method will then save the specified attributes into database.

Note that this method will not perform data validation and will not trigger events.

public integer updateAttributes ( $attributes )
$attributes array

The attributes (names or name-value pairs) to be updated

return integer

The number of rows affected.

                public function updateAttributes($attributes)
{
    $attrs = [];
    foreach ($attributes as $name => $value) {
        if (is_int($name)) {
            $attrs[] = $value;
        } else {
            $this->$name = $value;
            $attrs[] = $name;
        }
    }
    $values = $this->getDirtyAttributes($attrs);
    if (empty($values) || $this->getIsNewRecord()) {
        return 0;
    }
    $rows = static::updateAll($values, $this->getOldPrimaryKey(true));
    foreach ($values as $name => $value) {
        $this->_oldAttributes[$name] = $this->_attributes[$name];
    }
    return $rows;
}

            
updateCounters() public method

Updates one or several counter columns for the current AR object.

Note that this method differs from updateAllCounters() in that it only saves counters for the current AR object.

An example usage is as follows:

$post = Post::findOne($id);
$post->updateCounters(['view_count' => 1]);

See also updateAllCounters().

public boolean updateCounters ( $counters )
$counters array

The counters to be updated (attribute name => increment value) Use negative values if you want to decrement the counters.

return boolean

Whether the saving is successful

                public function updateCounters($counters)
{
    if (static::updateAllCounters($counters, $this->getOldPrimaryKey(true)) > 0) {
        foreach ($counters as $name => $value) {
            if (!isset($this->_attributes[$name])) {
                $this->_attributes[$name] = $value;
            } else {
                $this->_attributes[$name] += $value;
            }
            $this->_oldAttributes[$name] = $this->_attributes[$name];
        }
        return true;
    }
    return false;
}

            
updateInternal() protected method

See also update().

protected integer|false updateInternal ( $attributes null )
$attributes array|null

Attributes to update

return integer|false

The number of rows affected, or false if beforeSave() stops the updating process.

throws yii\db\StaleObjectException

                protected function updateInternal($attributes = null)
{
    if (!$this->beforeSave(false)) {
        return false;
    }
    $values = $this->getDirtyAttributes($attributes);
    if (empty($values)) {
        $this->afterSave(false, $values);
        return 0;
    }
    $condition = $this->getOldPrimaryKey(true);
    $lock = $this->optimisticLock();
    if ($lock !== null) {
        $values[$lock] = $this->$lock + 1;
        $condition[$lock] = $this->$lock;
    }
    // We do not check the return value of updateAll() because it's possible
    // that the UPDATE statement doesn't change anything and thus returns 0.
    $rows = static::updateAll($values, $condition);
    if ($lock !== null && !$rows) {
        throw new StaleObjectException('The object being updated is outdated.');
    }
    if (isset($values[$lock])) {
        $this->$lock = $values[$lock];
    }
    $changedAttributes = [];
    foreach ($values as $name => $value) {
        $changedAttributes[$name] = isset($this->_oldAttributes[$name]) ? $this->_oldAttributes[$name] : null;
        $this->_oldAttributes[$name] = $value;
    }
    $this->afterSave(false, $changedAttributes);
    return $rows;
}

            
validate() public method

Defined in: yii\base\Model::validate()

Performs the data validation.

This method executes the validation rules applicable to the current $scenario. The following criteria are used to determine whether a rule is currently applicable:

  • the rule must be associated with the attributes relevant to the current scenario;
  • the rules must be effective for the current scenario.

This method will call beforeValidate() and afterValidate() before and after the actual validation, respectively. If beforeValidate() returns false, the validation will be cancelled and afterValidate() will not be called.

Errors found during the validation can be retrieved via getErrors(), getFirstErrors() and getFirstError().

public boolean validate ( $attributeNames null, $clearErrors true )
$attributeNames string[]|string|null

Attribute name or list of attribute names that should be validated. If this parameter is empty, it means any attribute listed in the applicable validation rules should be validated.

$clearErrors boolean

Whether to call clearErrors() before performing validation

return boolean

Whether the validation is successful without any error.

throws yii\base\InvalidArgumentException

if the current scenario is unknown.

                public function validate($attributeNames = null, $clearErrors = true)
{
    if ($clearErrors) {
        $this->clearErrors();
    }
    if (!$this->beforeValidate()) {
        return false;
    }
    $scenarios = $this->scenarios();
    $scenario = $this->getScenario();
    if (!isset($scenarios[$scenario])) {
        throw new InvalidArgumentException("Unknown scenario: $scenario");
    }
    if ($attributeNames === null) {
        $attributeNames = $this->activeAttributes();
    }
    $attributeNames = (array)$attributeNames;
    foreach ($this->getActiveValidators() as $validator) {
        $validator->validateAttributes($this, $attributeNames);
    }
    $this->afterValidate();
    return !$this->hasErrors();
}

            
validateMultiple() public static method

Defined in: yii\base\Model::validateMultiple()

Validates multiple models.

This method will validate every model. The models being validated may be of the same or different types.

public static boolean validateMultiple ( $models, $attributeNames null )
$models array

The models to be validated

$attributeNames array|null

List of attribute names that should be validated. If this parameter is empty, it means any attribute listed in the applicable validation rules should be validated.

return boolean

Whether all models are valid. False will be returned if one or multiple models have validation error.

                public static function validateMultiple($models, $attributeNames = null)
{
    $valid = true;
    /* @var $model Model */
    foreach ($models as $model) {
        $valid = $model->validate($attributeNames) && $valid;
    }
    return $valid;
}

            

Event Details

Hide inherited properties

EVENT_AFTER_DELETE event of type yii\db\Event

An event that is triggered after a record is deleted.

EVENT_AFTER_FIND event of type yii\db\Event

An event that is triggered after the record is created and populated with query result.

EVENT_AFTER_INSERT event of type yii\db\AfterSaveEvent

An event that is triggered after a record is inserted.

EVENT_AFTER_REFRESH event of type yii\db\Event (available since version 2.0.8)

An event that is triggered after a record is refreshed.

EVENT_AFTER_UPDATE event of type yii\db\AfterSaveEvent

An event that is triggered after a record is updated.

EVENT_BEFORE_DELETE event of type yii\base\ModelEvent

An event that is triggered before deleting a record. You may set yii\base\ModelEvent::$isValid to be false to stop the deletion.

EVENT_BEFORE_INSERT event of type yii\base\ModelEvent

An event that is triggered before inserting a record. You may set yii\base\ModelEvent::$isValid to be false to stop the insertion.

EVENT_BEFORE_UPDATE event of type yii\base\ModelEvent

An event that is triggered before updating a record. You may set yii\base\ModelEvent::$isValid to be false to stop the update.

EVENT_INIT event of type yii\db\Event

An event that is triggered when the record is initialized via init().