<?php
/**********************************************************************************
* DClassifieds                                                                    *
* Open-Source Project Inspired by Dinko Georgiev (hide@address.com)      *
* =============================================================================== *
* Software Version:           0.1b                                           	  *
* Software by:                Dinko Georgiev     								  *
* Support, News, Updates at:  http://www.dclassifieds.eu                       	  *
***********************************************************************************
* This program is free software; you may redistribute it and/or modify it under   *
* the terms of the provided license.          									  *
*                                                                                 *
* This program is distributed in the hope that it is and will be useful, but      *
* WITHOUT ANY WARRANTIES; without even any implied warranty of MERCHANTABILITY    *
* or FITNESS FOR A PARTICULAR PURPOSE.                                            *
*                                                                                 *
* See the "license.txt" file for details of the license.                          *
* The latest version can always be found at http://www.gnu.org/licenses/gpl.txt   *
**********************************************************************************/
class CategoryController extends Controller
{
	/**
	 * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	 * using two-column layout. See 'protected/views/layouts/column2.php'.
	 */
	public $layout='//layouts/column2';

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{
		$this->render('view',array(
			'model'=>$this->loadModel($id),
		));
	}

	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate()
	{
		$model=new Category;

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

		if(isset($_POST['Category']))
		{
			$model->attributes=$_POST['Category'];
			
			if($model->category_parent_id == 0){
				$model->category_parent_id = null;
			}
			
			if($model->save()){
				Yii::app()->cache->flush();
				$this->redirect(array('view','id'=>$model->category_id));
			}
		}

		$category_list = Category::model()->getCategoryList();
		$category_html_list = array();
		
		$category_html_list = array_merge(array(0 => 'Main'), $category_html_list);
		
		Category::model()->getCategoryHtmlList( $category_html_list , $category_list );
		

		$this->render('create',array(
			'model'=>$model,
			'categoryParents'=>$category_html_list
		));
	}

	/**
	 * 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);

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

		if(isset($_POST['Category']))
		{
			$model->attributes=$_POST['Category'];
			
			if($model->category_parent_id == 0){
				$model->category_parent_id = null;
			}
			
			
			if($model->save()){
				Yii::app()->cache->flush();
				$this->redirect(array('view','id'=>$model->category_id));
			}
		}
		
		$category_list = Category::model()->getCategoryList();
		$category_html_list = array();
		
		$category_html_list = array_merge(array(0 => 'Main'), $category_html_list);
		
		Category::model()->getCategoryHtmlList( $category_html_list , $category_list );

		$this->render('update',array(
			'model'=>$model,
			'categoryParents'=>$category_html_list
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'index' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		if(Yii::app()->request->isPostRequest)
		{
			$adCount = Ad::model()->find('category_id = ' . $id);
			if(empty($adCount)){
				$childsCount = Category::model()->find('category_parent_id = ' . $id);
				if(empty($childsCount)){
					$this->loadModel($id)->delete();
					Yii::app()->cache->flush();
				} else {
					throw new CHttpException(400, Yii::t('admin', 'This category have subcategories. Delete them first.'));	
				}
			} else {
				throw new CHttpException(400, Yii::t('admin', 'You can not delete this category.There are classifieds in this category. Delete them first.'));	
			}

			// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
			if(!isset($_GET['ajax']))
				$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
		}
		else
			throw new CHttpException(400,'Invalid request. Please do not repeat this request again.');
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
	{
		$dataProvider=new DCActiveDataProvider('Category');
		
		$this->render('index',array(
			'dataProvider'=>$dataProvider
		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new Category('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['Category']))
			$model->attributes=$_GET['Category'];

		$this->render('admin',array(
			'model'=>$model,
		));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer the ID of the model to be loaded
	 */
	public function loadModel($id)
	{
		$model=Category::model()->findByPk((int)$id);
		if($model===null)
			throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param CModel the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='category-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
}