# Abstract Class yii\test\DbFixture

Inheritance | yii\test\DbFixture » yii\test\Fixture » yii\base\Component » yii\base\BaseObject
Implements | yii\base\Configurable
Subclasses | yii\elasticsearch\ActiveFixture, yii\mongodb\ActiveFixture, yii\sphinx\ActiveFixture, yii\test\ActiveFixture, yii\test\BaseActiveFixture, yii\test\InitDbFixture
Available since version | 2.0
Source Code | https://github.com/yiisoft/yii2/blob/master/framework/test/DbFixture.php

DbFixture is the base class for DB-related fixtures.

DbFixture provides the $db connection to be used by DB fixtures.

For more details and usage information on DbFixture, see the guide article on fixtures.

## Public Properties

Hide inherited properties

Property | Type | Description | Defined By
--- | --- | --- | ---
$behaviors | yii\base\Behavior[] | List of behaviors attached to this component. This property is read-only. | yii\base\Component
$db | yii\db\Connection|array|string | The DB connection object or the application component ID of the DB connection. | yii\test\DbFixture
$depends | array | The fixtures that this fixture depends on. | yii\test\Fixture

## Public Methods

Hide inherited methods

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\Component
__construct() | Constructor. | yii\base\BaseObject
__get() | Returns the value of a component property. | yii\base\Component
__isset() | Checks if a property is set, i.e. defined and not null. | yii\base\Component
__set() | Sets the value of a component property. | yii\base\Component
__unset() | Sets a component property to be null. | yii\base\Component
afterLoad() | This method is called AFTER all fixture data have been loaded for the current test. | yii\test\Fixture
afterUnload() | This method is called AFTER all fixture data have been unloaded for the current test. | yii\test\Fixture
attachBehavior() | Attaches a behavior to this component. | yii\base\Component
attachBehaviors() | Attaches a list of behaviors to the component. | yii\base\Component
beforeLoad() | This method is called BEFORE any fixture data is loaded for the current test. | yii\test\Fixture
beforeUnload() | This method is called BEFORE any fixture data is unloaded for the current test. | yii\test\Fixture
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\Component
canSetProperty() | Returns a value indicating whether a property can be set. | yii\base\Component
className() | Returns the fully qualified name of this class. | yii\base\BaseObject
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
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\Component
hasProperty() | Returns a value indicating whether a property is defined for this component. | yii\base\Component
init() | Initializes the object. | yii\test\DbFixture
load() | Loads the fixture. | yii\test\Fixture
off() | Detaches an existing event handler from this component. | yii\base\Component
on() | Attaches an event handler to an event. | yii\base\Component
trigger() | Triggers an event. | yii\base\Component
unload() | Unloads the fixture. | yii\test\Fixture

## Property Details

$db public property

The DB connection object or the application component ID of the DB connection. After the DbFixture object is created, if you want to change this property, you should only assign it with a DB connection object. 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'

## Method Details

init() public method

Initializes the object.

This method is invoked at the end of the constructor after the object is initialized with the given configuration.

public void init ( )