snipe-it/app/Http/Controllers/Api/DepartmentsController.php

<?php

namespace App\Http\Controllers\Api;

use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use App\Models\Department;
use App\Http\Transformers\DepartmentsTransformer;

class DepartmentsController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @author [A. Gianotto] [<snipe@snipe.net>]
     * @since [v4.0]
     * @return \Illuminate\Http\Response
     */
    public function index(Request $request)
    {
        $this->authorize('view', Department::class);
        $allowed_columns = ['id','name'];

        $departments = Department::select([
            'id',
            'name',
            'location_id'
        ])->with('users')->withCount('assets')->withCount('users');

        if ($request->has('search')) {
            $departments = $departments->TextSearch($request->input('search'));
        }

        $offset = $request->input('offset', 0);
        $limit = $request->input('limit', 50);
        $order = $request->input('order') === 'asc' ? 'asc' : 'desc';
        $sort = in_array($request->input('sort'), $allowed_columns) ? $request->input('sort') : 'created_at';
        $departments->orderBy($sort, $order);

        $total = $departments->count();
        $departments = $departments->skip($offset)->take($limit)->get();
        return (new DepartmentsTransformer)->transformDepartments($departments, $total);

    }
}