Class yii\db\mysql\ColumnSchema
| Inheritance | yii\db\mysql\ColumnSchema » yii\db\ColumnSchema » yii\base\BaseObject |
|---|---|
| Implements | yii\base\Configurable |
| Available since version | 2.0.14.1 |
Class ColumnSchema for MySQL database
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 |
|---|---|---|---|
| $allowNull | boolean | Whether this column can be null. | yii\db\ColumnSchema |
| $autoIncrement | boolean | Whether this column is auto-incremental | yii\db\ColumnSchema |
| $comment | string | Comment of this column. | yii\db\ColumnSchema |
| $dbType | string | The DB type of this column. | yii\db\ColumnSchema |
| $defaultValue | mixed | Default value of this column | yii\db\ColumnSchema |
| $disableJsonSupport | boolean | Whether the column schema should OMIT using JSON support feature. | yii\db\mysql\ColumnSchema |
| $enumValues | array | Enumerable values. | yii\db\ColumnSchema |
| $isPrimaryKey | boolean | Whether this column is a primary key | yii\db\ColumnSchema |
| $name | string | Name of this column (without quotes). | yii\db\ColumnSchema |
| $phpType | string | The PHP type of this column. | yii\db\ColumnSchema |
| $precision | integer | Precision of the column data, if it is numeric. | yii\db\ColumnSchema |
| $scale | integer | Scale of the column data, if it is numeric. | yii\db\ColumnSchema |
| $size | integer | Display size of the column. | yii\db\ColumnSchema |
| $type | string | Abstract type of this column. | yii\db\ColumnSchema |
| $unsigned | boolean | Whether this column is unsigned. | yii\db\ColumnSchema |
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 |
| dbTypecast() | Converts the input value according to $type and $dbType for use in a db query. | yii\db\mysql\ColumnSchema |
| 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 |
| phpTypecast() | Converts the input value according to $phpType after retrieval from the database. | yii\db\mysql\ColumnSchema |
Protected Methods
隐藏继承的方法 Hide inherited methods
| 方法 Method | 简介 Description | 定义在 Defined By |
|---|---|---|
| typecast() | Converts the input value according to $phpType after retrieval from the database. | yii\db\ColumnSchema |
属性详情 Property Details
Whether the column schema should OMIT using JSON support feature.
You can use this property to make upgrade to Yii 2.0.14 easier.
Default to false, meaning JSON support is enabled.
方法详情 Method Details
Converts the input value according to $type and $dbType for use in a db query.
If the value is null or an \yii\db\mysql\Expression, it will not be converted.
| public mixed dbTypecast ( $value ) | ||
| $value | mixed | Input value |
| return | mixed | Converted value. This may also be an array containing the value as the first element and the PDO type as the second element. |
|---|---|---|
Converts the input value according to $phpType after retrieval from the database.
If the value is null or an \yii\db\mysql\Expression, it will not be converted.
| public mixed phpTypecast ( $value ) | ||
| $value | mixed | Input value |
| return | mixed | Converted value |
|---|---|---|