public function destroy($id)
 {
     $viability = Viability::findOrFail($id);
     $viability->delete($id);
     Session::flash('message', 'Fue eliminado de nuestros registros.');
     return redirect()->route('viabilidades.index');
 }
 public function edit($id)
 {
     $view = Auth::user()->getView();
     $resolutions = Resolution::all();
     $files = File::all();
     $fileTypes = Filetype::all();
     $viabilities = Viability::all();
     $entities = Entity::getEntities();
     $concession = Concession::findOrFail($id);
     return view('concessions.edit', compact('resolutions', 'files', 'fileTypes', 'viabilities', 'concession', 'view', 'entities'));
 }