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31 lines
831 B
31 lines
831 B
10 years ago
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<?php
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/**
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* @link https://github.com/paulzi/yii2-nested-sets
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* @copyright Copyright (c) 2015 PaulZi <pavel.zimakoff@gmail.com>
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* @license MIT (https://github.com/paulzi/yii2-nested-sets/blob/master/LICENSE)
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*/
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namespace paulzi\nestedsets;
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/**
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* @author PaulZi <pavel.zimakoff@gmail.com>
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*/
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trait NestedSetsQueryTrait
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{
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/**
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* @return \yii\db\ActiveQuery
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*/
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public function roots()
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{
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/** @var \yii\db\ActiveQuery $this */
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$class = $this->modelClass;
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if (isset($class::$nestedSetsLeftAttribute)) {
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return $this->andWhere([$class::$nestedSetsLeftAttribute => 1]);
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} else {
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/** @var \yii\db\ActiveRecord|NestedSetsBehavior $model */
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$model = new $class;
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return $this->andWhere([$model->leftAttribute => 1]);
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}
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}
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}
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