yii2 按关系列获取活动记录

yii2 get activerecords by relation column

我需要 select ActiveRecord,它具有具有特定列值的相关 AR

情况:'User' 可能有很多 'Branches' - 通过交叉点 table,分支与部门相关。我有 department_id,我想要 select 个拥有来自这个部门的分支机构的用户。

部门:

... $this->hasMany(Branch::className(), ['department_id' => 'id']);

分支机构:

... $this->hasMany(User::className(), ['id' => 'user_id'])
                ->viaTable('{{%user_to_branch}}',['branch_id' => 'id']);

问题是,我不想以任何方式从部门访问它(例如 $department->getUsers()...),但我想在 ActiveQuery.[= 中定义它16=]

所以我可以 select 用户喜欢:

User::find()->fromDepartment(5)->all();

提前致谢!

在 ActiveRecord 中:

/**
 * @inheritdoc
 * @return MyActiveRecordModelQuery the active query used by this AR class.
 */
public static function find()
{
    return new MyActiveRecordModelQuery(get_called_class());
}

MyActiveRecordModelQuery:

/**
 * @method MyActiveRecordModelQuery one($db = null)
 * @method MyActiveRecordModelQuery[] all($db = null)
 */
class MyActiveRecordModelQuery extends ActiveQuery
{
    /**
     * @return $this
     */
    public function fromDepartment($id)
    {
        $this->andWhere(['departament_id' => $id]); //or use relation

        return $this;
    }
}

用法:

MyActiveRecordModelQuery::find()->fromDepartment(5)->all();

用户模型方法

public function getBranch()
{
    return $this->hasMany(Branch::className(), ['id' => 'branch_id'])
                ->viaTable('{{%user_to_branch}}', ['user_id' => 'id']);
}

public static function fromDepartment($id)
{
    $query = self::find();
    $query->joinWith(['branch'])
          ->andWhere(['department_id'=>$id]);
    return $query->all();
}

用法:

User::fromDepartment(5);