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<?php |
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namespace devgroup\JsTreeWidget; |
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use devgroup\TagDependencyHelper\ActiveRecordHelper; |
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use Yii; |
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use yii\base\Action; |
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use yii\base\InvalidConfigException; |
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use yii\caching\TagDependency; |
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use yii\web\Response; |
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/** |
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* Helper action for retrieving tree data for jstree by ajax. |
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* Example use in controller: |
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* |
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* ``` php |
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* public function actions() |
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* { |
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* return [ |
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* 'getTree' => [ |
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* 'class' => AdjacencyFullTreeDataAction::className(), |
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* 'class_name' => Category::className(), |
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* 'model_label_attribute' => 'name', |
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* |
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* ], |
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* 'upload' => [ |
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* 'class' => UploadAction::className(), |
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* 'upload' => 'theme/resources/product-images', |
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* ], |
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* 'remove' => [ |
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* 'class' => RemoveAction::className(), |
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* 'uploadDir' => 'theme/resources/product-images', |
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* ], |
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* 'save-info' => [ |
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* 'class' => SaveInfoAction::className(), |
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* ], |
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* ]; |
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* } |
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* ``` |
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*/ |
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class AdjacencyFullTreeDataAction extends Action |
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{ |
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public $class_name = null; |
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public $model_id_attribute = 'id'; |
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public $model_label_attribute = 'name'; |
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public $model_parent_attribute = 'parent_id'; |
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public $vary_by_type_attribute = null; |
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public $query_parent_attribute = 'id'; |
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public $query_sort_order = 'sort_order'; |
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public $query_selected_attribute = 'selected_id'; |
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/** |
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* Additional conditions for retrieving tree(ie. don't display nodes marked as deleted) |
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* @var array |
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*/ |
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public $whereCondition = []; |
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/** |
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* Cache key prefix. Should be unique if you have multiple actions with different $whereCondition |
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* @var string |
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*/ |
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public $cacheKey = 'FullTree'; |
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/** |
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* Cache lifetime for the full tree |
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* @var int |
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*/ |
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public $cacheLifeTime = 86400; |
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public function init() |
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{ |
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if (!isset($this->class_name)) { |
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throw new InvalidConfigException("Model name should be set in controller actions"); |
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} |
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if (!class_exists($this->class_name)) { |
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throw new InvalidConfigException("Model class does not exists"); |
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} |
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} |
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public function run() |
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{ |
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Yii::$app->response->format = Response::FORMAT_JSON; |
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$class = $this->class_name; |
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if (null === $current_selected_id = Yii::$app->request->get($this->query_selected_attribute)) { |
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$current_selected_id = Yii::$app->request->get($this->query_parent_attribute); |
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} |
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$cacheKey = "AdjacencyFullTreeData:{$this->cacheKey}:{$class}:{$this->query_sort_order}"; |
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if (false === $result = Yii::$app->cache->get($cacheKey)) { |
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$query = $class::find() |
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->orderBy([$this->query_sort_order => SORT_ASC]); |
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if (count($this->whereCondition) > 0) { |
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$query = $query->where($this->whereCondition); |
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} |
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if (null === $rows = $query->asArray()->all()) { |
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return []; |
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} |
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$result = []; |
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foreach ($rows as $row) { |
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$item = [ |
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'id' => $row[$this->model_id_attribute], |
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'parent' => ($row[$this->model_parent_attribute] > 0) ? $row[$this->model_parent_attribute] : '#', |
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'text' => $row[$this->model_label_attribute], |
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'a_attr' => ['data-id'=>$row[$this->model_id_attribute], 'data-parent_id'=>$row[$this->model_parent_attribute]], |
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]; |
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if (null !== $this->vary_by_type_attribute) { |
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$item['type'] = $row[$this->vary_by_type_attribute]; |
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} |
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$result[$row[$this->model_id_attribute]] = $item; |
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} |
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Yii::$app->cache->set( |
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$cacheKey, |
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$result, |
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86400, |
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new TagDependency([ |
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'tags' => [ |
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ActiveRecordHelper::getCommonTag($class), |
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], |
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]) |
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); |
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} |
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if (array_key_exists($current_selected_id, $result)) { |
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$result[$current_selected_id] = array_merge($result[$current_selected_id], ['state' => ['opened' => true, 'selected' => true]]); |
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} |
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return array_values($result); |
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} |
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} |
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DevGroup-ru /
yii2-jstree-widget
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