/**
  * @return \yii\db\ActiveQuery
  */
 public function getFunctionality()
 {
     return $this->hasOne(Functionality::className(), ['functionality_id' => 'functionality_id']);
 }
 /**
  * @return \yii\db\ActiveQuery
  */
 public function getFunctionalities()
 {
     return $this->hasMany(Functionality::className(), ['project_id' => 'project_id']);
 }
 /**
  * @return \yii\db\ActiveQuery
  */
 public function getFunctionalities0()
 {
     return $this->hasMany(Functionality::className(), ['updater_id' => 'id']);
 }