/**
  * This method will be creating an application row in the database and fill
  * it upp with the visitors information. It will also create the required
  * foreign key linked tables and save all of them in the database
  * @return view
  */
 private function submitForm()
 {
     DB::transaction(function () {
         $application_form = new \App\Application_form();
         $application_form->user_id = Auth::user()->id;
         $application_form->status = 'pending';
         $application_form->date = date('Y-m-d');
         $application_form->save();
         $application_id = $application_form->id;
         foreach (Session::pull('competenceArray') as $comp) {
             $competence_profile = new \App\Competence_profile();
             $competence_profile->application_id = $application_id;
             $competence_profile->competence_id = \App\Competence::where('name', $comp->competence)->value('id');
             $competence_profile->years_of_experience = $comp->years;
             $competence_profile->save();
         }
         foreach (Session::pull('periodArray') as $comp) {
             $periods = new \App\Period();
             $periods->application_id = $application_id;
             $periods->from_date = $comp->from_date;
             $periods->to_date = $comp->to_date;
             $periods->save();
         }
     });
     return view('submit_success');
 }