Class yii\data\SqlDataProvider

Inheritance	yii\data\SqlDataProvider » yii\data\BaseDataProvider » yii\base\Component » yii\base\Object
Implements	yii\base\Configurable, yii\data\DataProviderInterface
Available since version	2.0
Source Code	https://github.com/yiisoft/yii2/blob/master/framework/data/SqlDataProvider.php

SqlDataProvider implements a data provider based on a plain SQL statement.

SqlDataProvider provides data in terms of arrays, each representing a row of query result.

Like other data providers, SqlDataProvider also supports sorting and pagination. It does so by modifying the given $sql statement with "ORDER BY" and "LIMIT" clauses. You may configure the $sort and $pagination properties to customize sorting and pagination behaviors.

SqlDataProvider may be used in the following way:

$count = Yii::$app->db->createCommand('
    SELECT COUNT(*) FROM user WHERE status=:status
', [':status' => 1])->queryScalar();

$dataProvider = new SqlDataProvider([
    'sql' => 'SELECT * FROM user WHERE status=:status',
    'params' => [':status' => 1],
    'totalCount' => $count,
    'sort' => [
        'attributes' => [
            'age',
            'name' => [
                'asc' => ['first_name' => SORT_ASC, 'last_name' => SORT_ASC],
                'desc' => ['first_name' => SORT_DESC, 'last_name' => SORT_DESC],
                'default' => SORT_DESC,
                'label' => 'Name',
            ],
        ],
    ],
    'pagination' => [
        'pageSize' => 20,
    ],
]);

// get the user records in the current page
$models = $dataProvider->getModels();

Note: if you want to use the pagination feature, you must configure the $totalCount property to be the total number of rows (without pagination). And if you want to use the sorting feature, you must configure the $sort property so that the provider knows which columns can be sorted.

For more details and usage information on SqlDataProvider, see the guide article on data providers.

Public Properties

Property	Type	Description	Defined By
$behaviors	yii\base\Behavior[]	List of behaviors attached to this component	yii\base\Component
$count	integer	The number of data models in the current page.	yii\data\BaseDataProvider
$db	yii\db\Connection|array|string	The DB connection object or the application component ID of the DB connection.	yii\data\SqlDataProvider
$id	string	An ID that uniquely identifies the data provider among all data providers.	yii\data\BaseDataProvider
$key	string|callable	The column that is used as the key of the data models.	yii\data\SqlDataProvider
$keys	array	The list of key values corresponding to $models.	yii\data\BaseDataProvider
$models	array	The list of data models in the current page.	yii\data\BaseDataProvider
$pagination	yii\data\Pagination|false	The pagination object.	yii\data\BaseDataProvider
$params	array	Parameters (name=>value) to be bound to the SQL statement.	yii\data\SqlDataProvider
$sort	yii\data\Sort|boolean	The sorting object.	yii\data\BaseDataProvider
$sql	string	The SQL statement to be used for fetching data rows.	yii\data\SqlDataProvider
$totalCount	integer	Total number of possible data models.	yii\data\BaseDataProvider

Public Methods

Method	Description	Defined By
__call()	Calls the named method which is not a class method.	yii\base\Object
__clone()	This method is called after the object is created by cloning an existing one.	yii\base\Component
__construct()	Constructor.	yii\base\Object
__get()	Returns the value of an object property.	yii\base\Object
__isset()	Checks if a property is set, i.e. defined and not null.	yii\base\Object
__set()	Sets value of an object property.	yii\base\Object
__unset()	Sets an object property to null.	yii\base\Object
attachBehavior()	Attaches a behavior to this component.	yii\base\Component
attachBehaviors()	Attaches a list of behaviors to the component.	yii\base\Component
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\base\Object
canSetProperty()	Returns a value indicating whether a property can be set.	yii\base\Object
className()	Returns the fully qualified name of this class.	yii\base\Object
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
getBehavior()	Returns the named behavior object.	yii\base\Component
getBehaviors()	Returns all behaviors attached to this component.	yii\base\Component
getCount()	Returns the number of data models in the current page.	yii\data\BaseDataProvider
getKeys()	Returns the key values associated with the data models.	yii\data\BaseDataProvider
getModels()	Returns the data models in the current page.	yii\data\BaseDataProvider
getPagination()	Returns the pagination object used by this data provider.	yii\data\BaseDataProvider
getSort()	Returns the sorting object used by this data provider.	yii\data\BaseDataProvider
getTotalCount()	Returns the total number of data models.	yii\data\BaseDataProvider
hasEventHandlers()	Returns a value indicating whether there is any handler attached to the named event.	yii\base\Component
hasMethod()	Returns a value indicating whether a method is defined.	yii\base\Object
hasProperty()	Returns a value indicating whether a property is defined.	yii\base\Object
init()	Initializes the DB connection component.	yii\data\SqlDataProvider
off()	Detaches an existing event handler from this component.	yii\base\Component
on()	Attaches an event handler to an event.	yii\base\Component
prepare()	Prepares the data models and keys.	yii\data\BaseDataProvider
refresh()	Refreshes the data provider.	yii\data\BaseDataProvider
setKeys()	Sets the key values associated with the data models.	yii\data\BaseDataProvider
setModels()	Sets the data models in the current page.	yii\data\BaseDataProvider
setPagination()	Sets the pagination for this data provider.	yii\data\BaseDataProvider
setSort()	Sets the sort definition for this data provider.	yii\data\BaseDataProvider
setTotalCount()	Sets the total number of data models.	yii\data\BaseDataProvider
trigger()	Triggers an event.	yii\base\Component

Protected Methods

Method	Description	Defined By
prepareKeys()	Prepares the keys associated with the currently available data models.	yii\data\SqlDataProvider
prepareModels()	Prepares the data models that will be made available in the current page.	yii\data\SqlDataProvider
prepareTotalCount()	Returns a value indicating the total number of data models in this data provider.	yii\data\SqlDataProvider

Property Details

$db public property

The DB connection object or the application component ID of the DB connection. Starting from version 2.0.2, this can also be a configuration array for creating the object.

public yii\db\Connection|array|string $db = 'db'

$key public property

The column that is used as the key of the data models. This can be either a column name, or a callable that returns the key value of a given data model.

If this is not set, the keys of the $models array will be used.

public string|callable $key = null

$params public property

Parameters (name=>value) to be bound to the SQL statement.

public array $params = []

$sql public property

The SQL statement to be used for fetching data rows.

public string $sql = null

Method Details