How to pass data from controller to view in Laravel - laravel

Question

Please help me. I have these 3 tables, and I have problems on how to call the category name based on the restaurant id from Controller to view. Thank you in advance.
Table items
Table categories
Table restorant
This is my Controller
public function index()
{
if (auth()->user()->hasRole('owner')) {
$items = Items::with('category')->get();
$restorant_id = auth()->user()->restorant->id;
$category = Categories::where(['restorant_id' => $restorant_id]);
}
return view('point-of-sale::index', [
'category' => $category,
'items' => $items,
]);
}

Answer 1

If you add get() to the end of your $category = Categories::where(['restorant_id' => $restorant_id]); statement, you'll have an Eloquent collection returned:
$category = Categories::where(['restorant_id' => $restorant_id])->get();
Pass the $category variable to your view as you are currently, consider renaming it to $categories though just to infer that there could be multiple.
Then in your view you can loop over the Category results and access the name property:
#forelse ($category as $cat)
{{ $cat->name }}
#empty
No categories.
#endforelse
Update
If you want to get items by their category_id, you can either do as you have done with $categories:
$items = Items::where(['category_id' => $category_id])->get();
Alternatively, if you have an items relationship on your Categories model you can access them that way:
$category = Categories::with('items')
->where(['restorant_id' => $restorant_id])
->get();
The above will eager load the items related to a category which you can then access in your view, for example:
#forelse ($category as $cat)
{{ $cat->name }}
#foreach ($cat->items as $item)
{{ $item->name }}
#endforeach
#empty
No categories.
#endforelse