/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
public function index($tag_id = null)
{
if ($tag_id) {
$ingredients = Ingredient::whereHas('tags', function ($query) use($tag_id) {
$query->where('id', $tag_id);
})->get();
} else {
$ingredients = Ingredient::all();
}
$tags = Tag::where('for', 'ingredient')->get();
$tag = Tag::find($tag_id);
return view('ingredients.index')->with(['ingredients' => $ingredients, 'tags' => $tags, 'the_tag' => $tag]);
}
