Question

I do not want to see Yii error message when the database connection fails.
How can I redirect to a specific page when the database connection fails with Yii framework?
Thanks.

Answer 1

To catch all CDbConnection errors you need to enable an error handler in config/main.php

'components'=>array('errorHandler'=>array('errorAction'=>'site/error', ), ),

Then, within your controller (or an abstract base class for all your controllers) you need define an action to accomplish the redirect.

public function actionError() {
    if($error=Yii::app()->errorHandler->error)
        if ( CDbException == $error->type) {
           $this->redirect(array("site/error_message")); }
    //  call the parent error handler, but something doesn't feel right about this:
    else
        parent::actionError(); }

Alternatively you can just render your custom views:

public function actionError() {
    if($error=Yii::app()->errorHandler->error)
        if ( CDbException == $error->type) {
           $this->render('error', $error); } }

See Yii docs for more details.