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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;
use Yii;
/**
* BooleanValidator checks if the attribute value is a boolean value.
*
* Possible boolean values can be configured via the [[trueValue]] and [[falseValue]] properties.
* And the comparison can be either [[strict]] or not.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
class BooleanValidator extends Validator
{
/**
* @var mixed the value representing true status. Defaults to '1'.
*/
public $trueValue = '1';
/**
* @var mixed the value representing false status. Defaults to '0'.
*/
public $falseValue = '0';
/**
* @var boolean whether the comparison to [[trueValue]] and [[falseValue]] is strict.
* When this is true, the attribute value and type must both match those of [[trueValue]] or [[falseValue]].
* Defaults to false, meaning only the value needs to be matched.
*/
public $strict = false;
/**
* Initializes the validator.
*/
public function init()
{
parent::init();
if ($this->message === null) {
$this->message = Yii::t('yii|{attribute} must be either "{true}" or "{false}".');
}
}
/**
* Validates the attribute of the object.
* If there is any error, the error message is added to the object.
* @param \yii\base\Model $object the object being validated
* @param string $attribute the attribute being validated
*/
public function validateAttribute($object, $attribute)
{
$value = $object->$attribute;
if (!$this->validateValue($value)) {
$this->addError($object, $attribute, $this->message, array(
'{true}' => $this->trueValue,
'{false}' => $this->falseValue,
));
}
}
/**
* Validates the given value.
* @param mixed $value the value to be validated.
* @return boolean whether the value is valid.
*/
public function validateValue($value)
{
return !$this->strict && ($value == $this->trueValue || $value == $this->falseValue)
|| $this->strict && ($value === $this->trueValue || $value === $this->falseValue);
}
/**
* Returns the JavaScript needed for performing client-side validation.
* @param \yii\base\Model $object the data object being validated
* @param string $attribute the name of the attribute to be validated.
* @return string the client-side validation script.
*/
public function clientValidateAttribute($object, $attribute)
{
$message = strtr($this->message, array(
'{attribute}' => $object->getAttributeLabel($attribute),
'{value}' => $object->$attribute,
'{true}' => $this->trueValue,
'{false}' => $this->falseValue,
));
return "
if(" . ($this->skipOnEmpty ? "$.trim(value)!='' && " : '') . "value!=" . json_encode($this->trueValue) . " && value!=" . json_encode($this->falseValue) . ") {
messages.push(" . json_encode($message) . ");
}
";
}
}