Class spinitron\dynamicAr\ValueExpression
| Inheritance | spinitron\dynamicAr\ValueExpression » yii\base\Object |
|---|---|
| Implements | yii\base\Configurable |
A ValueExpression object represents the value of a dynamic attribute that DynamicActiveRecord uses directly (unescaped) in SQL instead of using PDOStatement::bindValue.
Example:
$model->width = new ValueExpression(123.456);
You may optionally give an SQL datatype as second argument of the constructor, for example:
$model->joined = new ValueExpression('"2015-06-01 12:30:00"', 'DATETIME');
$model->price = new ValueExpression(4.99, 'DECIMAL(6,2)');
Note: because values are not escaped or bound using PDO, for string values (including date and time types) you must provide the SQL quotes around the string in the value.
Note: using ValueExpression for the value of a column attribute rather than a dynamic attribute will cause an error.
Public Properties
| Property | Type | Description | Defined By |
|---|---|---|---|
| $type | null|string | The value's [SQL datatype](https://mariadb. | spinitron\dynamicAr\ValueExpression |
| $value | mixed | The dynamic attribute value. | spinitron\dynamicAr\ValueExpression |
Public Methods
| Method | Description | Defined By |
|---|---|---|
| __call() | Calls the named method which is not a class method. | yii\base\Object |
| __construct() | Constructor. | spinitron\dynamicAr\ValueExpression |
| __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 |
| __toString() | To string magic method. | spinitron\dynamicAr\ValueExpression |
| __unset() | Sets an object property to null. | yii\base\Object |
| 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 |
| 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 object. | yii\base\Object |
Property Details
The value's SQL datatype (optional)
The dynamic attribute value.
Method Details
Constructor.
| public void __construct ( $value, $type = null, $config = [] ) | ||
| $value | mixed | The dynamic attribute value. |
| $type | string | The value's SQL datatype. Omit or set null to not specify a datatype. |
| $config | array | Name-value pairs to initialize object properties. |
To string magic method.
| public string __toString ( ) | ||
| return | string | The dynamic value's SQL expression. |
|---|---|---|