/**
* Creates data provider instance with search query applied
*
* @param array $params
*
* @return ActiveDataProvider
*/
public function search($params)
{
$query = Category::find();
$query->orderBy('position DESC, title');
$dataProvider = new ActiveDataProvider(['query' => $query]);
if (!($this->load($params) && $this->validate())) {
return $dataProvider;
}
$query->andFilterWhere(['id' => $this->id, 'parent_id' => $this->parent_id, 'position' => $this->position]);
$query->andFilterWhere(['like', 'title', $this->title])->andFilterWhere(['like', 'alias', $this->alias]);
return $dataProvider;
}
/**
* Displays categories as tree.
*
* @return mixed
*/
public function actionTree()
{
$models = Category::find()->orderBy('position DESC, title')->all();
$model = new Category();
return $this->render('tree', ['model' => $model, 'models' => $models]);
}
/**
* Check that blog just installed
* @return bool
*/
public static function isJustInstalled()
{
$types = Type::find()->all();
$categories = Category::find()->all();
return empty($types) || empty($categories) ?: false;
}