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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\validators;
/**
* DefaultValueValidator sets the attribute to be the specified default value.
*
* DefaultValueValidator is not really a validator. It is provided mainly to allow
* specifying attribute default values when they are empty.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
class DefaultValueValidator extends Validator
{
/**
* @var mixed the default value or an anonymous function that returns the default value which will
* be assigned to the attributes being validated if they are empty. The signature of the anonymous function
* should be as follows,
*
* ```php
* function($model, $attribute) {
* // compute value
* return $value;
* }
* ```
*/
public $value;
/**
* @var bool this property is overwritten to be false so that this validator will
* be applied when the value being validated is empty.
*/
public $skipOnEmpty = false;
/**
* {@inheritdoc}
*/
public function validateAttribute($model, $attribute)
{
if ($this->isEmpty($model->$attribute)) {
if ($this->value instanceof \Closure) {
$model->$attribute = call_user_func($this->value, $model, $attribute);
} else {
$model->$attribute = $this->value;
}
}
}
}