/**
* Update the specified resource in storage.
*
* @param \Illuminate\Http\Request $request
* @param \App\Topic $topic
* @return \Illuminate\Routing\Redirector
*/
public function update(Request $request, Topic $topic)
{
$this->validate($request, ['title' => 'required', 'body' => 'required']);
$topic->update($request->all());
return Redirect::route('topics.show', [$topic]);
}
