gistfile1.php

/**
   * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id)
	{
		$model=$this->loadModel($id);

        if ($model->galleryBehavior->getGallery() === null) {
            $gallery = new Gallery();
            $gallery->name = true;
            $gallery->description = true;
            $gallery->save();
            $model->gallery_id = $gallery->id;
            $model->save();
        }

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['BlogPost']))
		{
			$model->attributes=$_POST['BlogPost'];
            $model->authorName = $_POST['BlogPost']['authorName'];
            $model->categoryId  = $_POST['BlogPost']['categoryId'];
			if($model->save()){
                $criteria = new CDbCriteria();
                $criteria->compare('post_id',$model->id);
                $lookup = BlogPostLookupCategory::model()->find($criteria);

                if($model->categoryId != $lookup->category_id)
                {
                    $lookup->category_id= $model->categoryId;
                    $lookup->update();
                }

                $this->redirect($this->homeUrl);
            }
		}
		$this->render('update',array(
			'model'=>$model,
		));
	}