ldc-doux/app/Http/Controllers/Bo/SlidesController.php

<?php

namespace App\Http\Controllers\Bo;

use App\Http\Controllers\Controller;
use App\Http\Requests\StoreSlideRequest;
use App\Models\Slide;
use App\Models\Slider;
use Illuminate\Http\Request;
use Illuminate\Support\Carbon;
use Illuminate\Support\Str;

class SlidesController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        $slides = Slide::orderBy('order', 'ASC')->get();
        return view('back.slides.index', compact('slides'));
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        $sliders = Slider::all();
        return view('back.slides.create', compact('sliders'));
    }

    /**
     * Store a newly created resource in storage.
     *
     * @todo : validation des dates
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(StoreSlideRequest $request)
    {
        $picture   = $request->picture;

        $slide = new Slide($request->validated());
        $slide->order = $this->getLastOrder();
        $slide->save();

        if ($picture !== null) {
            $imageName = $slide->id . '_' . Str::random(5) . '.' . $picture->extension();
            $picture->move(public_path('images/slides'), $imageName);
            $slide->picture = $imageName;
            $slide->save();
        }

        return redirect()->route('bo.slides.edit', $slide->id)->with('success', 'Slide créé !');
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function show($id)
    {
        //
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function edit($id)
    {
        $slide   = Slide::findOrFail($id);
        $sliders = Slider::all();
        return view('back.slides.edit', compact('slide', 'sliders'));
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function update(StoreSlideRequest $request, $id)
    {
        $picture   = $request->picture;

        // $request->validated()
        $slide = Slide::findOrFail($id);
        // $slide->save();

        if ($picture !== null) {
            if (file_exists(public_path() . 'images/slides/' . $slide->picture)) {
                unlink(public_path() . 'images/slides/' . $slide->picture);
            }
            $imageName = $slide->id . '_' . Str::random(5) . '.' . $picture->extension();
            $picture->move(public_path('images/slides'), $imageName);
            $slide->picture = $imageName;
        }
        $slide->save();

        return redirect()->route('bo.slides.edit', $slide->id)->with('success', 'Modifications enregistrées !');
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($id)
    {
        $s = Slide::findOrFail($id);

        $s->delete();

        return redirect()->route('bo.slides.index');
    }


    public function changeOrder($id, $action)
    {
        $current = Slide::findOrFail($id);

        if ($action === 'up') {
            $tmp            = Slide::where('order', '<', $current->order)->orderBy('order', 'DESC')->first();
            $newOrder       = $tmp->order;
            $tmp->order     = $current->order;
            $current->order = $newOrder;
        } else {
            $tmp            = Slide::where('order', '>', $current->order)->orderBy('order', 'ASC')->first();
            $newOrder       = $tmp->order;
            $tmp->order     = $current->order;
            $current->order = $newOrder;
        }
        $tmp->save();
        $current->save();

        return back();
        //return redirect()->route('back.slides.index');
    }

    /**
     * retreive order position to put a new slide to
     */
    private function getLastOrder()
    {
        $order = Slide::select('order')->orderBy('order', 'DESC')->first();
        if ($order === null) {
            return 1;
        }
        return $order->order + 1;
    }
}