autocde2.0/app/Http/Resources/API/ApprovalCollection.php

<?php

namespace App\Http\Resources\API;

use App\Models\Enums\ApprovalObjectType;
use App\Models\User;
use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\ResourceCollection;

class ApprovalCollection extends ResourceCollection
{
    public function __construct($resource)
    {
        parent::__construct($resource);
    }

    /**
     * Transform the resource collection into an array.
     *
     * @return array<int|string, mixed>
     */
    public function toArray(Request $request): array
    {
        $usersId=make_array_list($this->users??'');
        $approvalUsers=User::query()->whereIn('id',$usersId)->get();
        $groupObjects = $this->getGroupObjects();

        $items = [];
        foreach ($this->resource as $approval) {
            $usersId=make_array_list($approval->users??'');
            $approvalUsers=User::query()->whereIn('id',$usersId)->get();
            $items[] = [
                'id' => $approval->id,
                'status' => $approval->status,
                'object_type' => $approval->object_type,
                'object_id' => $approval->object_id,
                'node_level' => $approval->node_level,
                'created_by' => new UserProfileResource($approval->createdBy),
                'display_id' => $approval->display_id,
                'approval_user'=>UserProfileResource::collection($approvalUsers),
                'object' => [
                    'id' => $approval->object_id,
                    'name' => data_get($groupObjects, sprintf("%s.%s", $approval->object_type, $approval->object_id)),
                ]
            ];
        }

        return $items;
    }

    protected function getGroupObjects(): array
    {
        $groupObjects = [];

        foreach(collect($this->resource->items())->groupBy("object_type") as $objectType => $items) {
            $approvalObjectType = ApprovalObjectType::from($objectType);
            $groupObjects[$objectType] = $approvalObjectType
                ->modelBuilder()
                ->whereIn("id", array_column($items->toArray(), "object_id"))
                ->pluck($approvalObjectType->nameField(), "id");
        };

        return $groupObjects;
    }
}