public function update(TagUpdateRequest $request, $id)
    {
        $tag = Tag::findOrFail($id);
        $tag->fill($request->toArray())->save();
        $tag->save();

        Session::put('_update-tag', trans('canvas::messages.update_success', ['entity' => 'Tag']));

        return redirect()->route('canvas.admin.tag.edit', $id);
    }