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Edit File: BannerCreate.php

<?php

namespace App\Livewire\Admin\Banner;

use App\Models\Banner;
use App\Models\History;
use Livewire\Component;
use Livewire\WithFileUploads;
use Livewire\Attributes\Layout;
use Livewire\Attributes\Validate;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Session;

class BannerCreate extends Component
{
    use WithFileUploads;

#[Validate("string|required|max:100")]
    public string $name;

#[Validate("url|required|max:100")]
    public string $link;

#[Validate("image|required|mimes:webp,gif")]
    public $image;

#[Validate("required")]
    public bool $is_top = false;
    #[Validate("required")]
    public bool $is_bottom = false;

#[Validate("required|numeric")]
    public int $order;

public int $max_order;

public function mount() {
        $this->max_order = Banner::count() + 1;
        $this->order = $this->max_order;
    }

public function store() {
        $this->validate();
        $banner = new Banner();
        $banner->name = $this->name;
        $banner->link = $this->link;

// Proses Gambar
        $extension = $this->image->getClientOriginalExtension();
        $newname = $this->name . "-" . time() .  ".$extension";
        $this->image->storeAs("banner/$this->name", $newname);
        $storage_path = "/storage/banner/$this->name/$newname";
        $banner->image = $storage_path;

if($this->order != $this->max_order) {
            $get_all_bigger_order = Banner::where("order", ">=", $this->order)->get();
            foreach($get_all_bigger_order as $item) {
                $item->order += 1;
                $item->save();
            }
        }
        $banner->order = $this->order;
        $banner->is_top = $this->is_top;
        $banner->is_bottom = $this->is_bottom;

$banner->save();

Session::flash('status', 'success');
        Session::flash('message', 'Berhasil Menambah Banner Iklan');

History::create([
        'name' => Auth::user()->name,
        'page' => 'Banners',
        'title' => Auth::user()->name . ' Menambah Banner Iklan',
        'status' => 'success',
        ]);

return redirect()->route("admin.banner.index");
    }

#[Layout("layouts.admin")]
    public function render()
    {
        return view('livewire.admin.banner.banner-create');
    }
}

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