ldc-crm/app/Http/Controllers/SingleOptinController.php

<?php

namespace App\Http\Controllers;

use App\Models\SingleOptin;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Http\Request;
use Illuminate\Support\Str;

class SingleOptinController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @param \Illuminate\Http\Request $request
     * @return \Illuminate\Contracts\View\View
     */
    public function index(Request $request): \Illuminate\Contracts\View\View
    {
        /** @var \Illuminate\Database\Eloquent\Builder $query */
        $query = SingleOptin::query();

        if ($request->brand) {
            $query = $query->whereHas('brand', function (Builder $q) use ($request) {
                $q->where('id', $request->brand);
            });
        }
        if ($request->search) {
            $this->searchQuery(
                $query,
                $request->search,
                null,
                'email',
            );
        }

        $this->sortQuery($query);
        $searchFields = trans('E-mail');

        /** @var \Illuminate\Pagination\AbstractPaginator */
        $singleoptinModels = $query->paginate(12);

        return view('singleoptins.index', compact('singleoptinModels', 'searchFields'));
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param \App\Models\SingleOptin $singleoptin
     * @return \Illuminate\Http\RedirectResponse
     */
    public function destroy(SingleOptin $singleoptin): \Illuminate\Http\RedirectResponse
    {
        if ($singleoptin->deleteOrFail()) {
            return redirect()->route('single_optins.index')
                ->with('success', trans(
                    ':model a été supprimé.',
                    ['model' => Str::singular(trans('models.classes.singleoptins'))]
                ));
        }
        return redirect()->back()
            ->with('error', trans(
                ':model n\'a pas pu être supprimé.',
                ['model' => Str::singular(trans('models.classes.singleoptins'))]
            ));
    }
}