How to make one with an additional parameter from two collections?

Question

Laravel

Hello everybody! I need your help.
Essence of the question: how to get one from two collections, namely, if the field (id) matches, add a field to the output collection Code example:"is_follow" => true/false

$tags = Tag::all();
$user_tags = auth()->user()->tags()->get();

$tags = Tag::all()- All tags
$user_tags = auth()->user()->tags()->get()- Tags that the current user is following

dd($tags->toArray());

array:50 [
  0 => array:6 [
    "id" => 1
    "icon" => "https://picsum.photos/seed/id/100/100"
    "title" => "Id"
    "slug" => "id"
    "created_at" => "2021-08-06T14:22:15.000000Z"
    "updated_at" => "2021-08-06T14:22:15.000000Z"
  ]
  1 => array:6 [
    "id" => 3
    "icon" => "https://picsum.photos/seed/qui/100/100"
    "title" => "Qui"
    "slug" => "qui"
    "created_at" => "2021-08-06T14:22:15.000000Z"
    "updated_at" => "2021-08-06T14:22:15.000000Z"
  ]
...
]

dd($user_tags->toArray());

array:2 [
  0 => array:7 [
    "id" => 1
    "icon" => "https://picsum.photos/seed/nesciunt/100/100"
    "title" => "Nesciunt"
    "slug" => "nesciunt"
    "created_at" => "2021-08-06T14:22:15.000000Z"
    "updated_at" => "2021-08-06T14:22:15.000000Z"
    "pivot" => array:2 []
  ]
  1 => array:7 [
    "id" => 3
    "icon" => "https://picsum.photos/seed/nulla/100/100"
    "title" => "Nulla"
    "slug" => "nulla"
    "created_at" => "2021-08-06T14:22:15.000000Z"
    "updated_at" => "2021-08-06T14:22:15.000000Z"
    "pivot" => array:2 []
  ]

How do I get the view collection:

array:50 [
  0 => array:7 [
    "id" => 1
    "icon" => "https://picsum.photos/seed/id/100/100"
    "is_follow" => true
    "title" => "Id"
    "slug" => "id"
    "created_at" => "2021-08-06T14:22:15.000000Z"
    "updated_at" => "2021-08-06T14:22:15.000000Z"
  ]
  1 => array:7 [
    "id" => 2
    "icon" => "https://picsum.photos/seed/qui/100/100"
    "is_follow" => false
    "title" => "Qui"
    "slug" => "qui"
    "created_at" => "2021-08-06T14:22:15.000000Z"
    "updated_at" => "2021-08-06T14:22:15.000000Z"
  ]
  2 => array:7 [
    "id" => 3
    "icon" => "https://picsum.photos/seed/qui/100/100"
    "is_follow" => true
    "title" => "Qui"
    "slug" => "qui"
    "created_at" => "2021-08-06T14:22:15.000000Z"
    "updated_at" => "2021-08-06T14:22:15.000000Z"
  ]
...
]

Tell me which way to look and what methods to use ...?

Answer 1

$user_tags = auth()->user()->tags()->pluck('id');
$tags = Tag::all()->each(function (Tag $tag) use ($user_tags): Tag {
  $tag->setAttribute('is_follow', $user_tags->contains($tag->id))
});