true, 'targetClass' => Category::className(), 'targetAttribute' => [ 'category_id' => 'id' ], ], [ [ 'tax_group_id' ], 'exist', 'skipOnError' => true, 'targetClass' => TaxGroup::className(), 'targetAttribute' => [ 'tax_group_id' => 'id' ], ], ]; } /** * @inheritdoc */ public function attributeLabels() { return [ 'tax_group_to_category_id' => 'Tax Group To Category ID', 'tax_group_id' => 'Tax Group ID', 'category_id' => 'Category ID', ]; } /** * @return \yii\db\ActiveQuery */ public function getCategory() { return $this->hasOne(Category::className(), [ 'id' => 'category_id' ]); } /** * @return \yii\db\ActiveQuery */ public function getTaxGroup() { return $this->hasOne(TaxGroup::className(), [ 'id' => 'tax_group_id' ]); } }