yii\db\Constraint - Yii2 类参考手册
Class yii\db\Constraint
Inheritance | yii\db\Constraint » yii\base\BaseObject |
---|---|
Implements | yii\base\Configurable |
Subclasses | yii\db\CheckConstraint, yii\db\DefaultValueConstraint, yii\db\ForeignKeyConstraint, yii\db\IndexConstraint |
Available since version | 2.0.13 |
Constraint represents the metadata of a table constraint.
Public Properties
隐藏继承的属性 Hide inherited properties
属性Property | 类型 Type | 简介 Description | 定义在 Defined By |
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$columnNames | string[]|null | List of column names the constraint belongs to. | yii\db\Constraint |
$name | string|null | The constraint name. | yii\db\Constraint |
Public Methods
隐藏继承的方法 Hide inherited methods
方法 Method | 简介 Description | 定义在 Defined By |
---|---|---|
__call() | Calls the named method which is not a class method. | yii\base\BaseObject |
__construct() | Constructor. | yii\base\BaseObject |
__get() | Returns the value of an object property. | yii\base\BaseObject |
__isset() | Checks if a property is set, i.e. defined and not null. | yii\base\BaseObject |
__set() | Sets value of an object property. | yii\base\BaseObject |
__unset() | Sets an object property to null. | yii\base\BaseObject |
canGetProperty() | Returns a value indicating whether a property can be read. | yii\base\BaseObject |
canSetProperty() | Returns a value indicating whether a property can be set. | yii\base\BaseObject |
className() | Returns the fully qualified name of this class. | yii\base\BaseObject |
hasMethod() | Returns a value indicating whether a method is defined. | yii\base\BaseObject |
hasProperty() | Returns a value indicating whether a property is defined. | yii\base\BaseObject |
init() | Initializes the object. | yii\base\BaseObject |