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<?php |
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/** |
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* @link http://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license http://www.yiiframework.com/license/ |
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*/ |
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namespace yii\validators; |
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use Yii; |
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/** |
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* RequiredValidator validates that the specified attribute does not have null or empty value. |
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* |
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* @author Qiang Xue <[email protected]> |
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* @since 2.0 |
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*/ |
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class RequiredValidator extends Validator |
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{ |
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/** |
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* @var bool whether to skip this validator if the value being validated is empty. |
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*/ |
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public $skipOnEmpty = false; |
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/** |
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* @var mixed the desired value that the attribute must have. |
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* If this is null, the validator will validate that the specified attribute is not empty. |
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* If this is set as a value that is not null, the validator will validate that |
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* the attribute has a value that is the same as this property value. |
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* Defaults to null. |
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* @see strict |
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*/ |
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public $requiredValue; |
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/** |
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* @var bool whether the comparison between the attribute value and [[requiredValue]] is strict. |
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* When this is true, both the values and types must match. |
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* Defaults to false, meaning only the values need to match. |
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* Note that when [[requiredValue]] is null, if this property is true, the validator will check |
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* if the attribute value is null; If this property is false, the validator will call [[isEmpty]] |
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* to check if the attribute value is empty. |
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*/ |
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public $strict = false; |
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/** |
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* @var string the user-defined error message. It may contain the following placeholders which |
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* will be replaced accordingly by the validator: |
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* |
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* - `{attribute}`: the label of the attribute being validated |
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* - `{value}`: the value of the attribute being validated |
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* - `{requiredValue}`: the value of [[requiredValue]] |
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*/ |
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public $message; |
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/** |
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* @inheritdoc |
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*/ |
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public function init() |
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{ |
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parent::init(); |
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if ($this->message === null) { |
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$this->message = $this->requiredValue === null ? Yii::t('yii', '{attribute} cannot be blank.') |
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: Yii::t('yii', '{attribute} must be "{requiredValue}".'); |
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} |
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} |
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/** |
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* @inheritdoc |
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*/ |
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protected function validateValue($value) |
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{ |
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if ($this->requiredValue === null) { |
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if ($this->strict && $value !== null || !$this->strict && !$this->isEmpty(is_string($value) ? trim($value) : $value)) { |
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return null; |
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} |
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} elseif (!$this->strict && $value == $this->requiredValue || $this->strict && $value === $this->requiredValue) { |
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return null; |
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} |
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if ($this->requiredValue === null) { |
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return [$this->message, []]; |
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} |
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return [$this->message, [ |
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'requiredValue' => $this->requiredValue, |
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]]; |
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} |
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} |
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yiisoft /
yii2
