Computer Programming CookBook

To get current controller name use this code : <?php $controllerId = Yii :: app () -> controller -> id ; //or $controllerId = $this -> getId (); ?> To get current action name/id being executed, if you are inside beforeAction() or afterAction(), use the received CAction argument <?php //inside beforeAction or afterAction public function beforeAction ( $action ) { $actionId = $action -> id ; ... ?> or just elsewhere inside your controller <?php $actionId = $this -> getAction () -> getId (); ?> To get name of currently called controller action anywhere in the code you can use : <?php print CController :: getAction () -> id ; ?>

If you want to return to your previous url after login or logout try this : <?php $this -> redirect (Yii :: app () -> request -> urlReferrer ); ?> To set the return url to be the url that was before the login page or registeration page was called you can put following code in views/layouts/main.php file : <?php //this checks id the controller action is not 'login' then it keeps the current url in returnUrl if (CController :: getAction () -> id != 'login' ) { Yii :: app () -> user -> setReturnUrl (Yii :: app () -> request -> getUrl ()); } ?>

yii, extension to use for image thumbnail generation : http://www.yiiframework.com/extension/justintimeimageresizer/ And this extension requires this extension : http://www.yiiframework.com/extension/image/

Yii, display model errors : print_r($model->getErrors());

YII, get current page URL   Yii::app()->request->requestUri

YII, get name of the called controller action: <?php print CController :: getAction () -> id ; ?>

yii, form, create drop down and populate it with values from any model : Use code below in the view file inside the form: <? php echo $form -> dropDownList ( $model , 'item_type_id' , CHtml :: listData ( ItemType :: model ()-> findAll (), 'id' , 'type' ), array ( 'empty' => 'select Type' )); ?>