public function store()
 {
     if (Input::has('unit_id')) {
         $rules = ['unit' => 'required'];
     } else {
         $rules = ['unit' => 'required |unique:tempunit'];
     }
     $validator = Validator::make(Input::all(), $rules);
     if ($validator->fails()) {
         return Redirect::back()->withErrors($validator)->withInput();
     } else {
         if (Input::has('unit_id')) {
             $id = Input::get('unit_id');
             $noteType = TempUnitModel::find($id);
         } else {
             $noteType = new TempUnitModel();
         }
         $noteType->unit = Input::get('unit');
         $noteType->save();
         $alert['msg'] = 'Temp unit has been saved successfully';
         $alert['type'] = 'success';
     }
     return Redirect::route('admin.temp')->with('alert', $alert);
 }