Yii ajax verification and ajax display error messagebox solution

In Yii, you can use ajax to execute an action, but this action sometimes requires an error message to pop up. The processing method is as follows:

Basic ideas

Use exception, such

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Throw new CHttpException (403, 'You are not authorized to perform this action .');

If the exception is CHttpException or YII_DEBUG is true, the error message can be displayed through CErrorHandler: errorAction. In the default yiic generated code, the following code is added to config/main. php:

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'Errorhandler' => array ( 'Erroraction' => 'site/error ',),

However
In Yii 1.1.9 or later, the exceptions thrown by ajax requests are displayed through CApplication: displayException. This makes it impossible to customize the message display mode.

This is the case if the CGridView deletion request throws an exception (YII_DEBUG is true)

Yii 1.1.9 checks that the logic of the ajax request has been removed, so even ajax exceptions are now handled by CErrorHandler: errorAction.

In this way, ajax messages can be DIY.

Example

Use the following code

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Public function actionError (){ If ($ error = Yii: app ()-> errorHandler-> error)     { If (Yii: app ()-> request-> isAjaxRequest) Echo $ error ['message']; else $ This-> render ('error', $ error );}}

Later I found a webmaster sharing a piece of code.

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Model: Public function rules ()     { // NOTE: you shocould only define rules for those attributes that // Will receive user inputs. Return array ( Array ('content, author, email ', 'required '), Array ('author, email, url', 'length', 'Max '=> 128 ), Array ('email ', 'Email '), Array ('URL', 'URL '), );     } Controller: If (isset ($ _ POST ['Ajax ']) & $ _ POST ['Ajax'] === 'Comment-form ')         { Echo CActiveForm: validate ($ model ); Yii: app ()-> end ();         } View: <? Php $ form = $ this-> beginWidget ('cactiveform', array ( 'Id' => 'Post-form', // This is the form id 'Enablesajaxvalidation '=> true, // enter true here. );?> <? Php echo CHtml: errorSummary ($ model);?> <Div class = "row"> <? Php echo $ form-> labelEx ($ model, 'title');?> <? Php echo $ form-> textField ($ model, 'title', array ('size' => 80, 'maxlength' => 128);?> <? Php echo $ form-> error ($ model, 'title');?> </Div> <Div class = "row"> <? Php echo $ form-> labelEx ($ model, 'Content');?> <? Php echo CHtml: activeTextArea ($ model, 'content', array ('rows '=> 10, 'cols' => 70);?> <P class = "hint"> You may use <a target = "_ blank" href = "http://daringfireball.net/projects/markdown/syntax"> Markdown syntax </a>. </p> <? Php echo $ form-> error ($ model, 'Content');?> </Div>   <? Php $ this-> endWidget ();?>

This seems to solve the yii ajax display problem.