public function addUserRequirement()
 {
     if (!$this->validate()) {
         return false;
     }
     $user = User::findOne($this->user_id);
     if (Requirement::findOne($this->requirement_id === null) || $user === null) {
         throw new NotFoundHttpException('The requested page does not exist.');
     }
     foreach ($user->requirements as $current_req) {
         if ($current_req->id == $this->requirement_id) {
             return false;
         }
     }
     $req = new UserRequirement();
     $req->user_id = $this->user_id;
     $req->requirement_id = $this->requirement_id;
     return $req->save();
 }
 public function importShifts($data)
 {
     //Data should be a 2D array of the following
     //[title, start_timestamp, length, min_participants, max_participants, requirement_name]
     $count = 0;
     foreach ($data as $row) {
         $timestamp = strtotime($row[1]);
         if (isset($row[5])) {
             $requirement = Requirement::findOne(['name' => $row[5]]);
         } else {
             $requirement = null;
         }
         $shift = new Shift();
         $shift->title = $row[0];
         $shift->start_time = $timestamp;
         $shift->team_id = $this->id;
         $shift->length = $row[2];
         $shift->min_needed = !empty($row[3]) ? $row[3] : null;
         $shift->max_needed = !empty($row[4]) ? $row[4] : null;
         $shift->requirement_id = isset($requirement) ? $requirement->id : null;
         $shift->active = true;
         if ($shift->save()) {
             $count++;
         }
     }
     Yii::$app->session->addFlash('success', sprintf("Imported %d of %d shifts successfully", $count, count($data)));
 }
 /**
  * Finds the Requirement model based on its primary key value.
  * If the model is not found, a 404 HTTP exception will be thrown.
  * @param integer $id
  * @return Requirement the loaded model
  * @throws NotFoundHttpException if the model cannot be found
  */
 protected function findModel($id)
 {
     if (($model = Requirement::findOne($id)) !== null) {
         return $model;
     } else {
         throw new NotFoundHttpException('The requested page does not exist.');
     }
 }