使用 php Laravel 编辑我的库存数据库中的项目

Question

我遇到了一个问题，我想编辑我的库存列表中的一个项目，并且能够单击编辑按钮，但浏览器中没有任何反应。我很困惑为什么会这样。 任何想法都会非常有帮助。 我的控制器：

<?php

namespace App\Http\Controllers;

use App\Models\Inventory;
use Illuminate\Http\Request;

/**
 * Class InventoryController
 */
class InventoryController extends Controller
{

    /**
     * Get the list of inventories.
     *
     * @return \Illuminate\Contracts\View\View
     */
    public function index()
    {
        $inventories = Inventory::all();
        return view('pages.inventories',[
            "inventories" => $inventories
        ]);
    }

    /**
     * Show the generated inventory
     *
     * @return \Illuminate\Contracts\View\View
     */
    public function create()
    {
        return view('pages.inventories.create');
    }

    /**
     * Store a newly created inventory
     *
     * @return \Illuminate\Http\RedirectResponse
     */
    public function store(Request $request)
    {
        $validated = $request->validate([
            'title'=> 'required|string',
            'description'=> 'required|string|max:300',
            'price' => 'required|integer|min:0',
            'in_stock' => 'required|integer',
            'on_sale' => 'required|boolean'
        ]);
        $inventory = new Inventory();

        $inventory->fill($validated)->save();

        return redirect('/inventories');
    }

    /**
     * Editing existing inventory
     *
     * @param $inventory
     *
     */
    public function edit(Request $request, Inventory $inventory)
    {
        $this->validate($request, [
            'title'=> 'required|string',
            'description'=> 'required|string|max:300',
            'price' => 'required|integer|min:0',
            'in_stock' => 'required|integer',
            'on_sale' => 'required|boolean'
        ]);
        $inventory = Inventory::find('id');
        $inventory->title = $request->input('title');
        $inventory->description = $request->input('description');
        $inventory->price = $request->input('price');
        $inventory->in_stock = $request->input('in_stock');
        $inventory->on_sale = $request->input('on_sale');
        $inventory->fill($validated)->save();
        return view('pages.inventories.edit',['inventory' => $inventory])->with('Item has been updated!' . $request->input('title'));


    }

我的库存刀片文件：

@extends('layouts.app')

@section('title', 'My Inventory')

@section('content')
    <h1>Inventory Table</h1>
    <p>This is the inventory table made using PHP Laravel that is randomly generated.</p>
   <table>
        <thead>
            <tr>
                <th>ID</th>
                <th>Title</th>
                <th>Description</th>
                <th>Price</th>
                <th>In stock</th>
                <th>On sale</th>
                <th>Edit</th>
                <th>Delete</th>
            </tr>
        </thead>
        <tbody>
            @foreach($inventories as $inventory)
            <tr>
                <td>{{$inventory->id}}</td>
                <td>{{$inventory->title}}</td>
                <td>{{$inventory->description}}</td>
                <td> &pound;{{ number_format($inventory->price, 2) }}</td>
                <td>{{$inventory->in_stock}}</td>
                <td>{{ $inventory->on_sale ? 'Yes' : 'No' }}</td>
                <td><a href="{{ route('inventories.edit', $inventory) }}">Edit</a></td>
                <td><a href="{{ route('inventories.destroy', $inventory) }}">Delete</a></td>
            </tr>
            @endforeach
        </tbody>
    </table>
@endsection

我的路由器：

<?php

use Illuminate\Support\Facades\Route;

Route::get('/', [\App\Http\Controllers\HomeController::class, 'index'])->name('pages.index');

Route::get('/inventories', [\App\Http\Controllers\InventoryController::class, 'index'])->name('index');

Route::get('/inventories/create', [\App\Http\Controllers\InventoryController::class, 'create']);

Route::post('/inventories', [\App\Http\Controllers\InventoryController::class, 'store']);


Route::get('/inventory/{inventory}/edit',[\App\Http\Controllers\InventoryController::class, 'edit'])->name('inventories.edit');

Route::patch('/inventories/{inventory}',[\App\Http\Controllers\InventoryController::class, 'edit'])->name('inventories.update');

Route::get('/inventories/{inventory}',[\App\Http\Controllers\InventoryController::class, 'delete'])->name('inventories.destroy');

Route::delete('/inventories/{inventory}', [\App\Http\Controllers\InventoryController::class, 'delete'])->name('inventories.destroy');

我的库存模型：

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Inventory extends Model
{
    use HasFactory;

    /**
     * @var array
     */
    protected $casts = [
        'on_sale' => 'boolean',
    ];

    /**
     * @var string[]
     */
    protected $fillable = [
        'title',
        'description',
        'price',
        'in_stock',
        'on_sale'
    ];

    /**
     * @var array
     */
    protected $guarded = [];

    /**
     * @var string
     */
    protected $primaryKey = 'id';
}

我的编辑刀片文件：

@extends('layouts.app')

@section('title', 'Create Inventory')

@section('menu')

@section('content')
    <h1><strong>Edit {{ $inventory->title }}</strong></h1>
    <x-inventory-form :inventory=$inventory />
@endsection

目标是让用户希望从我的数据库中的库存列表中编辑一个项目，并能够更改标题、描述、价格，无论是在库存还是在售，然后验证它，如果它是已验证使用成功消息更新项目，以便用户知道他们成功了。

Answer 1

你错过了一个视图的东西。首先你错过了一些路线。创建所有这些路由的最简单方法是使用Route::resource('inventory', 'inventoryController');

设置路由后，您需要一个单独的函数来获取和发布更新。所以你需要public function edit(Request $request, Inventory $inventory) 你已经有了，但是将名称更改为“更新”，你需要一个public function edit($id)，它将显示编辑页面（所以你已经去获取库存项目信息并将其解析为查看）

有关更多信息，您可以查看文档https://laravel.com/docs/8.x/controllers#resource-controllers