public function preview($id)
 {
     $form = Form::findOrFail($id);
     $path = storage_path($form->path);
     return redirect()->to(viewDocumentOnline($path));
 }
 /**
  * @param $id
  */
 public function preview($id)
 {
     $leave = EmployeeSpecialLeave::find($id);
     if ($leave) {
         $path = 'files/SpecialLeaveForms/' . $leave->file;
         return redirect()->to(viewDocumentOnline(url($path)));
     }
 }
 /**
  * @param $id
  */
 public function preview($id)
 {
     $leave = $this->regularLeave->get($id);
     if ($leave) {
         $path = 'files/RegularLeaveForms/' . $leave->file;
         return redirect()->to(viewDocumentOnline(url($path)));
     }
 }