CRangeValidator
| 包 | system.validators |
|---|---|
| 继承 | class CRangeValidator » CValidator » CComponent |
| 可用自 | 1.0 |
| 源码 | framework/validators/CRangeValidator.php |
CRangeValidator validates that the attribute value is among the list (specified via range).
You may invert the validation logic with help of the not property (available since 1.1.5).
For example,
class QuestionForm extends CFormModel
{
public function rules()
{
return array(
array('text, tag', 'required'),
array('text, 'type', 'type' => 'string'),
array('tag', 'in', 'range' => array('php', 'mysql', 'jquery')),
);
}
}
公共属性
| 属性 | 类型 | 描述 | 被定义在 |
|---|---|---|---|
| allowEmpty | boolean | whether the attribute value can be null or empty. | CRangeValidator |
| attributes | array | list of attributes to be validated. | CValidator |
| builtInValidators | array | list of built-in validators (name=>class) | CValidator |
| enableClientValidation | boolean | whether to perform client-side validation. | CValidator |
| except | array | list of scenarios that the validator should not be applied to. | CValidator |
| message | string | the user-defined error message. | CValidator |
| not | boolean | whether to invert the validation logic. | CRangeValidator |
| on | array | list of scenarios that the validator should be applied. | CValidator |
| range | array | list of valid values that the attribute value should be among | CRangeValidator |
| safe | boolean | whether attributes listed with this validator should be considered safe for massive assignment. | CValidator |
| skipOnError | boolean | whether this validation rule should be skipped when there is already a validation error for the current attribute. | CValidator |
| strict | boolean | whether the comparison is strict (both type and value must be the same) | CRangeValidator |
公共方法
| 方法 | 描述 | 被定义在 |
|---|---|---|
| __call() | Calls the named method which is not a class method. | CComponent |
| __get() | Returns a property value, an event handler list or a behavior based on its name. | CComponent |
| __isset() | Checks if a property value is null. | CComponent |
| __set() | Sets value of a component property. | CComponent |
| __unset() | Sets a component property to be null. | CComponent |
| applyTo() | Returns a value indicating whether the validator applies to the specified scenario. | CValidator |
| asa() | Returns the named behavior object. | CComponent |
| attachBehavior() | Attaches a behavior to this component. | CComponent |
| attachBehaviors() | Attaches a list of behaviors to the component. | CComponent |
| attachEventHandler() | Attaches an event handler to an event. | CComponent |
| canGetProperty() | Determines whether a property can be read. | CComponent |
| canSetProperty() | Determines whether a property can be set. | CComponent |
| clientValidateAttribute() | Returns the JavaScript needed for performing client-side validation. | CRangeValidator |
| createValidator() | Creates a validator object. | CValidator |
| detachBehavior() | Detaches a behavior from the component. | CComponent |
| detachBehaviors() | Detaches all behaviors from the component. | CComponent |
| detachEventHandler() | Detaches an existing event handler. | CComponent |
| disableBehavior() | Disables an attached behavior. | CComponent |
| disableBehaviors() | Disables all behaviors attached to this component. | CComponent |
| enableBehavior() | Enables an attached behavior. | CComponent |
| enableBehaviors() | Enables all behaviors attached to this component. | CComponent |
| evaluateExpression() | Evaluates a PHP expression or callback under the context of this component. | CComponent |
| getEventHandlers() | Returns the list of attached event handlers for an event. | CComponent |
| hasEvent() | Determines whether an event is defined. | CComponent |
| hasEventHandler() | Checks whether the named event has attached handlers. | CComponent |
| hasProperty() | Determines whether a property is defined. | CComponent |
| raiseEvent() | Raises an event. | CComponent |
| validate() | Validates the specified object. | CValidator |
受保护的方法
| 方法 | 描述 | 被定义在 |
|---|---|---|
| addError() | Adds an error about the specified attribute to the active record. | CValidator |
| isEmpty() | Checks if the given value is empty. | CValidator |
| validateAttribute() | Validates the attribute of the object. | CRangeValidator |
属性详情
allowEmpty
属性
public boolean $allowEmpty;
whether the attribute value can be null or empty. Defaults to true, meaning that if the attribute is empty, it is considered valid.
not
属性
（自版本 v1.1.5 可用）
public boolean $not;
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 range.
range
属性
public array $range;
list of valid values that the attribute value should be among
strict
属性
public boolean $strict;
whether the comparison is strict (both type and value must be the same)
方法详情
clientValidateAttribute()
方法
（自版本 v1.1.7 可用）
|
public string clientValidateAttribute(CModel $object, string $attribute)
| ||
| $object | CModel | the data object being validated |
| $attribute | string | the name of the attribute to be validated. |
| {return} | string | the client-side validation script. |
源码： framework/validators/CRangeValidator.php#102 (显示)
public function clientValidateAttribute($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).");
}
";
}
Returns the JavaScript needed for performing client-side validation.
validateAttribute()
方法
|
protected void validateAttribute(CModel $object, string $attribute)
| ||
| $object | CModel | the object being validated |
| $attribute | string | the attribute being validated |
源码： framework/validators/CRangeValidator.php#62 (显示)
protected function validateAttribute($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 = $r === '' || $value === '' ? $r === $value : $r == $value;
if($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);
}
}
Validates the attribute of the object. If there is any error, the error message is added to the object.