News::search PHP Method

    public function search()
    {
        $criteria = new CDbCriteria();
        $criteria->compare('t.id', $this->id);
        $criteria->compare('create_time', $this->create_time, true);
        $criteria->compare('update_time', $this->update_time, true);
        if ($this->date) {
            $criteria->compare('date', date('Y-m-d', strtotime($this->date)));
        }
        $criteria->compare('title', $this->title, true);
        $criteria->compare('t.slug', $this->slug, true);
        $criteria->compare('short_text', $this->short_text, true);
        $criteria->compare('full_text', $this->full_text, true);
        $criteria->compare('user_id', $this->user_id);
        $criteria->compare('t.status', $this->status);
        $criteria->compare('category_id', $this->category_id, true);
        $criteria->compare('is_protected', $this->is_protected);
        $criteria->compare('t.lang', $this->lang);
        $criteria->with = ['category'];
        return new CActiveDataProvider(get_class($this), ['criteria' => $criteria, 'sort' => ['defaultOrder' => 'date DESC']]);
    }

 public function actionIndex()
 {
     $model = new News('search');
     $model->unsetAttributes();
     if (isset($_GET['News'])) {
         $model->setAttributes($_GET['News']);
     }
     $dataProvider = $model->search();
     $this->render('//news/index', array('dataProvider' => $dataProvider, 'model' => $model));
 }