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<?php
/**
* CRangeValidator class file.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link http://www.yiiframework.com/
* @copyright 2008-2013 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
/**
* CRangeValidator validates that the attribute value is among the list (specified via {@link range}).
* You may invert the validation logic with help of the {@link not} property (available since 1.1.5).
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @package system.validators
* @since 1.0
*/
class CRangeValidator extends CValidator
{
/**
* @var array list of valid values that the attribute value should be among
*/
public $range;
/**
* @var boolean whether the comparison is strict (both type and value must be the same)
*/
public $strict=false;
/**
* @var boolean whether the attribute value can be null or empty. Defaults to true,
* meaning that if the attribute is empty, it is considered valid.
*/
public $allowEmpty=true;
/**
* @var boolean whether to invert the validation logic. Defaults to false. If set to true,
* the attribute value should NOT be among the list of values defined via {@link range}.
* @since 1.1.5
**/
public $not=false;
/**
* Validates the attribute of the object.
* If there is any error, the error message is added to the object.
* @param CModel $object the object being validated
* @param string $attribute the attribute being validated
* @throws CException if given {@link range} is not an array
*/
protected function validateAttribute($object,$attribute)
{
$value=$object->$attribute;
if($this->allowEmpty && $this->isEmpty($value))
return;
if(!is_array($this->range))
throw new CException(Yii::t('yii','The "range" property must be specified with a list of values.'));
$result = false;
if($this->strict)
$result=in_array($value,$this->range,true);
else
{
foreach($this->range as $r)
{
$result=(strcmp($r,$value)===0);
if($result)
break;
}
}
if(!$this->not && !$result)
{
$message=$this->message!==null?$this->message:Yii::t('yii','{attribute} is not in the list.');
$this->addError($object,$attribute,$message);
}
elseif($this->not && $result)
{
$message=$this->message!==null?$this->message:Yii::t('yii','{attribute} is in the list.');
$this->addError($object,$attribute,$message);
}
}
/**
* Returns the JavaScript needed for performing client-side validation.
* @param CModel $object the data object being validated
* @param string $attribute the name of the attribute to be validated.
* @throws CException if given {@link range} is not an array
* @return string the client-side validation script.
* @see CActiveForm::enableClientValidation
* @since 1.1.7
*/
public function clientValidateAttribute($object,$attribute)
{
if(!is_array($this->range))
throw new CException(Yii::t('yii','The "range" property must be specified with a list of values.'));
if(($message=$this->message)===null)
$message=$this->not ? Yii::t('yii','{attribute} is in the list.') : Yii::t('yii','{attribute} is not in the list.');
$message=strtr($message,array(
'{attribute}'=>$object->getAttributeLabel($attribute),
));
$range=array();
foreach($this->range as $value)
$range[]=(string)$value;
$range=CJSON::encode($range);
return "
if(".($this->allowEmpty ? "jQuery.trim(value)!='' && " : '').($this->not ? "jQuery.inArray(value, $range)>=0" : "jQuery.inArray(value, $range)<0").") {
messages.push(".CJSON::encode($message).");
}
";
}
}
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