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Trait Yiisoft\ActiveRecord\Trait\ArrayableTrait

Uses TraitsYiisoft\Arrays\ArrayableTrait

Trait to implement {@see ArrayableInterface} interface for ActiveRecord.

See also:

Public Methods

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Method Description Defined By
extraFields() Returns the list of fields that can be expanded further and returned by {@see toArray()}. Yiisoft\ActiveRecord\Trait\ArrayableTrait
fields() Returns the list of fields that should be returned by default by {@see toArray()}. Yiisoft\ActiveRecord\Trait\ArrayableTrait
propertyNames() Yiisoft\ActiveRecord\Trait\ArrayableTrait
relatedRecords() Yiisoft\ActiveRecord\Trait\ArrayableTrait

Method Details

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extraFields() public method

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

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

The default implementation returns the names of the relations defined in this ActiveRecord class indexed by themselves.

You may override this method to return a list of expandable fields.

public (Closure|string)[] extraFields ( )
return (Closure|string)[]

The list of expandable field names or field definitions. Please refer to {@see \Yiisoft\ActiveRecord\Trait\fields()} on the format of the return value.

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

            
fields() public method

Returns the list of fields that should be returned by default by {@see toArray()}.

A field is a named element in the returned array by {@see \Yiisoft\ActiveRecord\Trait\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 () {
        return $this->first_name . ' ' . $this->last_name;
    },
];

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

The default implementation returns the names of the properties of this record indexed by themselves.

public (Closure|string)[] fields ( )
return (Closure|string)[]

The list of field names or field definitions.

                public function fields(): array
{
    $fields = $this->propertyNames();
    return array_combine($fields, $fields);
}

            
propertyNames() public method

public string[] propertyNames ( )
return string[]
relatedRecords() public method

public array relatedRecords ( )
return array