Class yii\mongodb\Database

Inheritanceyii\mongodb\Database » yii\base\BaseObject
Available since version2.0

Database represents the MongoDB database information.

Public Properties

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PropertyTypeDescriptionDefined By
$connection yii\mongodb\Connection MongoDB connection. yii\mongodb\Database
$name string Name of this database. yii\mongodb\Database

Public Methods

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MethodDescriptionDefined By
clearCollections() Clears internal collection lists. yii\mongodb\Database
createCollection() Creates new collection. yii\mongodb\Database
createCommand() Creates MongoDB command associated with this database. yii\mongodb\Database
dropCollection() Drops specified collection. yii\mongodb\Database
getCollection() Returns the Mongo collection with the given name. yii\mongodb\Database
getFileCollection() Returns Mongo GridFS collection with given prefix. yii\mongodb\Database
listCollections() Returns the list of available collections in this database. yii\mongodb\Database

Protected Methods

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MethodDescriptionDefined By
selectCollection() Selects collection with given name. yii\mongodb\Database
selectFileCollection() Selects GridFS collection with given prefix. yii\mongodb\Database

Property Details

$connection public property

MongoDB connection.

$name public property

Name of this database.

public string $name null

Method Details

clearCollections() public method

Clears internal collection lists.

This method can be used to break cycle references between yii\mongodb\Database and yii\mongodb\Collection instances.

public void clearCollections ( )
createCollection() public method

Creates new collection.

Note: Mongo creates new collections automatically on the first demand, this method makes sense only for the migration script or for the case you need to create collection with the specific options.

public boolean createCollection ( $name, $options = [] )
$name string

Name of the collection

$options array

Collection options in format: "name" => "value"

return boolean

Whether operation was successful.

throws yii\mongodb\Exception

on failure.

createCommand() public method (available since version 2.1)

Creates MongoDB command associated with this database.

public yii\mongodb\Command createCommand ( $document = [] )
$document array

Command document contents.

return yii\mongodb\Command

Command instance.

dropCollection() public method (available since version 2.1)

Drops specified collection.

public boolean dropCollection ( $name )
$name string

Name of the collection

return boolean

Whether operation was successful.

getCollection() public method

Returns the Mongo collection with the given name.

public yii\mongodb\Collection getCollection ( $name, $refresh false )
$name string

Collection name

$refresh boolean

Whether to reload the collection instance even if it is found in the cache.

return yii\mongodb\Collection

Mongo collection instance.

getFileCollection() public method

Returns Mongo GridFS collection with given prefix.

public yii\mongodb\file\Collection getFileCollection ( $prefix 'fs', $refresh false )
$prefix string

Collection prefix.

$refresh boolean

Whether to reload the collection instance even if it is found in the cache.

return yii\mongodb\file\Collection

Mongo GridFS collection.

listCollections() public method (available since version 2.1.1)

Returns the list of available collections in this database.

public array listCollections ( $condition = [], $options = [] )
$condition array

Filter condition.

$options array

Options list.

return array

Collections information.

selectCollection() protected method

Selects collection with given name.

protected yii\mongodb\Collection selectCollection ( $name )
$name string

Collection name.

return yii\mongodb\Collection

Collection instance.

selectFileCollection() protected method

Selects GridFS collection with given prefix.

protected yii\mongodb\file\Collection selectFileCollection ( $prefix )
$prefix string

File collection prefix.

return yii\mongodb\file\Collection

File collection instance.