GenericController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class NewsletterListController extends Controller
{
    public function __construct()
    {
        $this->middleware('auth');
    }

    private $names = [

        'model' => \App\NewsletterList::class,
        'singular' => 'newsletterList',
        'plural' => 'newsletterLists',

    ];

    private function updateRules()
    {
        return [

        ];

    }

    private function storeRules()
    {
        return array_merge($this->updateRules(), [

        ]);

    }

    public function index()
    {
        $names = $this->names;

        $elements = $this->names['model']::all();

        return view('admin.'.$names['plural'].'.index', compact('names', 'elements'));
    }

    public function create()
    {
        $names = $this->names;

        return view('admin.'.$names['plural'].'.create', compact('names'));
    }

    public function store(Request $request)
    {
        $this->validate(request(), $this->storeRules());

        $data = $request->all();

        $this->names['model']::create($data);

        return redirect('admin/'.$this->names['plural'])->withSuccess(__('app.successStore'));
    }

    public function show($id)
    {
        $names = $this->names;

        $element = $names['model']::find($id);

        return view('admin.'.$this->names['plural'].'.show', compact('element', 'names'));
    }

    public function edit($id)
    {
        $names = $this->names;

        $element = $names['model']::find($id);

        return view('admin.'.$this->names['plural'].'.edit', compact('element', 'names'));
    }

    public function update(Request $request, $id)
    {
        $this->validate(request(), $this->updateRules());

        $element = $this->names['model']::find($id);

        $data = $request->all();

        $element->update($data);

        return redirect('admin/'.$this->names['plural'])->withSuccess(__('app.successUpdate'));
    }

    public function destroy($id)
    {
        $element = $this->names['model']::find($id);

        $element->delete();

        return back()->withSuccess(__('app.successDestroy'));
    }
}