/**
  * Create prediction action
  * @return string
  */
 public function create()
 {
     $response = array('success' => false);
     if (Request::ajax()) {
         $postData = Input::all();
         $tabletId = $postData['tabletId'];
         $predictionName = $postData['prediction'];
         $predictionValue = $postData['value'];
         $rules = array('prediction' => array('required', 'max:20'), 'value' => array('required', 'numeric', 'min:0'));
         $messages = array('prediction.required' => 'Please enter prediction name.', 'prediction.max' => 'Prediction name shouldn\'t be bigger than 20 chars.', 'prediction.unique' => 'You arleady have a prediction with this name.', 'value.required' => 'Please enter prediction value.', 'value.numeric' => 'Prediction value must be a numeric value. Ex: 90, 3.42', 'value.min' => 'Value must be a positive number.');
         $validator = Validator::make($postData, $rules, $messages);
         if ($validator->fails()) {
             $messages = $validator->messages();
             $response['predictionMsg'] = $messages->first('prediction');
             $response['valueMsg'] = $messages->first('value');
             return Response::json($response);
         }
         $prediction = new Prediction();
         $prediction->tablet_id = $tabletId;
         $prediction->name = $predictionName;
         $prediction->predicted = $predictionValue;
         $prediction->value = $predictionValue;
         $prediction->save();
         $response['predictionId'] = $prediction->id;
         $response['success'] = true;
     }
     return Response::json($response);
 }
 protected function _populateTabletWithPreviousData($newTablet)
 {
     $lastInactiveTablet = $this->_getCurrentUser()->getLastInactiveTablet();
     $oldPredictions = $lastInactiveTablet->predictions;
     if (count($oldPredictions)) {
         foreach ($oldPredictions as $oldPrediction) {
             $prediction = new Prediction();
             $prediction->tablet_id = $newTablet->id;
             $prediction->name = $oldPrediction->name;
             $startingSum = $oldPrediction->getTotalExpenses() ? $oldPrediction->getTotalExpenses() : $oldPrediction->predicted;
             $prediction->predicted = $startingSum;
             $prediction->value = $startingSum;
             $prediction->save();
         }
     }
 }