/**
  * @return \yii\db\ActiveQuery
  */
 public function getTrashMan()
 {
     return $this->hasOne(TrashMan::className(), ['id' => 'trash_man_id']);
 }
 public function getTrashMen()
 {
     return $this->hasMany(TrashMan::className(), ['id' => 'trash_man_id'])->viaTable('main_trash_man', ['main_id' => 'id']);
 }