system system.base system.caching system.caching.dependencies system.collections system.console system.db system.db.ar system.db.schema system.db.schema.cubrid system.db.schema.mssql system.db.schema.mysql system.db.schema.oci system.db.schema.pgsql system.db.schema.sqlite system.gii system.i18n system.i18n.gettext system.logging system.test system.utils system.validators system.web system.web.actions system.web.auth system.web.filters system.web.form system.web.helpers system.web.renderers system.web.services system.web.widgets system.web.widgets.captcha system.web.widgets.pagers zii.behaviors zii.widgets zii.widgets.grid zii.widgets.jui

CCaptchaValidator

system.validators
继承 class CCaptchaValidator » CValidator » CComponent
可用自 1.0
源码 framework/validators/CCaptchaValidator.php
CCaptchaValidator validates that the attribute value is the same as the verification code displayed in the CAPTCHA.

CCaptchaValidator should be used together with CCaptchaAction.

公共属性

隐藏继承的属性

属性类型描述被定义在
allowEmpty boolean whether the attribute value can be null or empty. CCaptchaValidator
attributes array list of attributes to be validated. CValidator
builtInValidators array list of built-in validators (name=>class) CValidator
caseSensitive boolean whether the comparison is case sensitive. CCaptchaValidator
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
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

受保护的属性

隐藏继承的属性

属性类型描述被定义在
captchaAction CCaptchaAction Returns the CAPTCHA action object. CCaptchaValidator

公共方法

隐藏继承的方法

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. CCaptchaValidator
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

隐藏继承的方法

方法描述被定义在
addError() Adds an error about the specified attribute to the active record. CValidator
getCaptchaAction() Returns the CAPTCHA action object. CCaptchaValidator
isEmpty() Checks if the given value is empty. CValidator
validateAttribute() Validates the attribute of the object. CCaptchaValidator

属性详情

allowEmpty 属性
public boolean $allowEmpty;

whether the attribute value can be null or empty. Defaults to false, meaning the attribute is invalid if it is empty.

captchaAction 属性 只读 (自版本 v1.1.7 可用)

Returns the CAPTCHA action object.

caseSensitive 属性
public boolean $caseSensitive;

whether the comparison is case sensitive. Defaults to false.

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
$attribute string the name of the attribute to be validated.
{return} string the client-side validation script.
源码: framework/validators/CCaptchaValidator.php#91 (显示)
public function clientValidateAttribute($object,$attribute)
{
    
$captcha=$this->getCaptchaAction();
    
$message=$this->message!==null $this->message Yii::t('yii','The verification code is incorrect.');
    
$message=strtr($message, array(
        
'{attribute}'=>$object->getAttributeLabel($attribute),
    ));
    
$code=$captcha->getVerifyCode(false);
    
$hash=$captcha->generateValidationHash($this->caseSensitive $code strtolower($code));
    
$js="
var hash = jQuery('body').data('
{$this->captchaAction}.hash');
if (hash == null)
hash = 
$hash;
else
hash = hash["
.($this->caseSensitive 1)."];
for(var i=value.length-1, h=0; i >= 0; --i) h+=value."
.($this->caseSensitive '' 'toLowerCase().')."charCodeAt(i);
if(h != hash) {
messages.push("
.CJSON::encode($message).");
}
"
;

    if(
$this->allowEmpty)
    {
        
$js="
if(jQuery.trim(value)!='') {
$js
}
"
;
    }

    return 
$js;
}

Returns the JavaScript needed for performing client-side validation.

getCaptchaAction() 方法 (自版本 v1.1.7 可用)
protected CCaptchaAction getCaptchaAction()
{return} CCaptchaAction the action object
源码: framework/validators/CCaptchaValidator.php#64 (显示)
protected function getCaptchaAction()
{
    if((
$captcha=Yii::app()->getController()->createAction($this->captchaAction))===null)
    {
        if(
strpos($this->captchaAction,'/')!==false// contains controller or module
        
{
            if((
$ca=Yii::app()->createController($this->captchaAction))!==null)
            {
                list(
$controller,$actionID)=$ca;
                
$captcha=$controller->createAction($actionID);
            }
        }
        if(
$captcha===null)
            throw new 
CException(Yii::t('yii','CCaptchaValidator.action "{id}" is invalid. Unable to find such an action in the current controller.',
                    array(
'{id}'=>$this->captchaAction)));
    }
    return 
$captcha;
}

Returns the CAPTCHA action object.

validateAttribute() 方法
protected void validateAttribute(CModel $object, string $attribute)
$object CModel the object being validated
$attribute string the attribute being validated
源码: framework/validators/CCaptchaValidator.php#44 (显示)
protected function validateAttribute($object,$attribute)
{
    
$value=$object->$attribute;
    if(
$this->allowEmpty && $this->isEmpty($value))
        return;
    
$captcha=$this->getCaptchaAction();
    
// reason of array checking is explained here: https://github.com/yiisoft/yii/issues/1955
    
if(is_array($value) || !$captcha->validate($value,$this->caseSensitive))
    {
        
$message=$this->message!==null?$this->message:Yii::t('yii','The verification code is incorrect.');
        
$this->addError($object,$attribute,$message);
    }
}

Validates the attribute of the object. If there is any error, the error message is added to the object.