CUrlValidator
| 包 | system.validators |
|---|---|
| 继承 | class CUrlValidator » CValidator » CComponent |
| 可用自 | 1.0 |
| 源码 | framework/validators/CUrlValidator.php |
CUrlValidator validates that the attribute value is a valid http or https URL.
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. | CUrlValidator |
| attributes | array | list of attributes to be validated. | CValidator |
| builtInValidators | array | list of built-in validators (name=>class) | CValidator |
| defaultScheme | string | the default URI scheme. | CUrlValidator |
| 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 |
| on | array | list of scenarios that the validator should be applied. | CValidator |
| pattern | string | the regular expression used to validate the attribute value. | CUrlValidator |
| 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 |
| validSchemes | array | list of URI schemes which should be considered valid. | CUrlValidator |
| validateIDN | boolean | whether validation process should care about IDN (internationalized domain names). | CUrlValidator |
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. | CUrlValidator |
| 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 |
| validateValue() | Validates a static value to see if it is a valid URL. | CUrlValidator |
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. | CUrlValidator |
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.
defaultScheme
属性
（自版本 v1.1.7 可用）
public string $defaultScheme;
the default URI scheme. If the input doesn't contain the scheme part, the default scheme will be prepended to it (thus changing the input). Defaults to null, meaning a URL must contain the scheme part.
pattern
属性
public string $pattern;
the regular expression used to validate the attribute value. Since version 1.1.7 the pattern may contain a {schemes} token that will be replaced by a regular expression which represents the {@see validSchemes}.
validSchemes
属性
（自版本 v1.1.7 可用）
public array $validSchemes;
list of URI schemes which should be considered valid. By default, http and https are considered to be valid schemes.
validateIDN
属性
（自版本 v1.1.13 可用）
public boolean $validateIDN;
whether validation process should care about IDN (internationalized domain names). Default value is false which means that validation of URLs containing IDN will always fail.
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 |
| $attribute | string | the name of the attribute to be validated. |
| {return} | string | the client-side validation script. |
源码： framework/validators/CUrlValidator.php#108 (显示)
public function clientValidateAttribute($object,$attribute)
{
if($this->validateIDN)
{
Yii::app()->getClientScript()->registerCoreScript('punycode');
// punycode.js works only with the domains - so we have to extract it before punycoding
$validateIDN='
var info = value.match(/^(.+:\/\/|)([^/]+)/);
if (info)
value = info[1] + punycode.toASCII(info[2]);
';
}
else
$validateIDN='';
$message=$this->message!==null ? $this->message : Yii::t('yii','{attribute} is not a valid URL.');
$message=strtr($message, array(
'{attribute}'=>$object->getAttributeLabel($attribute),
));
if(strpos($this->pattern,'{schemes}')!==false)
$pattern=str_replace('{schemes}','('.implode('|',$this->validSchemes).')',$this->pattern);
else
$pattern=$this->pattern;
$js="
$validateIDN
if(!value.match($pattern)) {
messages.push(".CJSON::encode($message).");
}
";
if($this->defaultScheme!==null)
{
$js="
if(!value.match(/:\\/\\//)) {
value=".CJSON::encode($this->defaultScheme)."+'://'+value;
}
$js
";
}
if($this->allowEmpty)
{
$js="
if(jQuery.trim(value)!='') {
$js
}
";
}
return $js;
}
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 |
| $attribute | string | the attribute being validated |
源码： framework/validators/CUrlValidator.php#57 (显示)
protected function validateAttribute($object,$attribute)
{
$value=$object->$attribute;
if($this->allowEmpty && $this->isEmpty($value))
return;
if(($value=$this->validateValue($value))!==false)
$object->$attribute=$value;
else
{
$message=$this->message!==null?$this->message:Yii::t('yii','{attribute} is not a valid URL.');
$this->addError($object,$attribute,$message);
}
}
Validates the attribute of the object. If there is any error, the error message is added to the object.
validateValue()
方法
（自版本 v1.1.1 可用）
|
public mixed validateValue(string $value)
| ||
| $value | string | the value to be validated |
| {return} | mixed | false if the the value is not a valid URL, otherwise the possibly modified value ({@see defaultScheme}) |
源码： framework/validators/CUrlValidator.php#79 (显示)
public function validateValue($value)
{
if(is_string($value) && strlen($value)<2000) // make sure the length is limited to avoid DOS attacks
{
if($this->defaultScheme!==null && strpos($value,'://')===false)
$value=$this->defaultScheme.'://'.$value;
if($this->validateIDN)
$value=$this->encodeIDN($value);
if(strpos($this->pattern,'{schemes}')!==false)
$pattern=str_replace('{schemes}','('.implode('|',$this->validSchemes).')',$this->pattern);
else
$pattern=$this->pattern;
if(preg_match($pattern,$value))
return $this->validateIDN ? $this->decodeIDN($value) : $value;
}
return false;
}
Validates a static value to see if it is a valid URL. Note that this method does not respect allowEmpty property. This method is provided so that you can call it directly without going through the model validation rule mechanism.