Getting all items with another Eloquent query ID in Laravel-CodePudding

I have something like this:

$items = Item::whereIn("name", $request["names"])->get();

Now I want to get a list of shops that have any of those items. Something like this:

$shops = Shop::whereIn("item_id", $items)->get();

This does not work, because items is an eloquent collection (obviously). I could do some loop and get all the ids like this:

foreach ($items as $item){
    $itemIds[] = $item
}

And then use it, but I feel there must be a cleaner way.

Any help?

CodePudding user response：

Use ->pluck('id') and whereIn():

$items = Item::where('name', $request['names'])->get();

$shops = Shop::whereIn('item_id', $items->pluck('id'))->get();

Eloquent Collections have access to many of the same functions of Laravel's Collection Class:

->pluck('id') will return an array of all items.id records, which you can then use to query via ->whereIn('item_id', ...);