在本篇文章中，我將給大家分享laravel 5.6版本中的基本crud（創建，讀取，更新和刪除）應用程式模組。你可以按照下面的步驟在laravel 5.6中建立CRUD應用程式。
最新laravel商城實戰影片教學
》）下面我將建立insert（插入）、update（更新）、delete（刪除）和view（檢視）和產品的分頁範例。你只需建立新產品，查看產品，編輯產品並從清單中刪除產品。
第1步：安裝Laravel 5.6
可以在終端機中執行 create-project 指令來安裝Laravel：
composer create-project --prefer-dist laravel/laravel blog
怎麼透過composer安裝Laravel框架？」）
第2步：資料庫設定
完成安裝後，我們將為laravel 5.6的crud應用程式進行資料庫配置，例如資料庫名稱，使用者名，密碼等。所以，讓我們打開.env檔案並填寫相關信息，如下：.env
DB_CONNECTION=mysql DB_HOST=127.0.0.1 DB_PORT=3306 DB_DATABASE=here your database name(blog) DB_USERNAME=here database username(root) DB_PASSWORD=here database password(root)
第3步：建立產品表和模型
# #我們將為產品創建crud應用程式。所以我們必須使用Laravel 5.6 php artisan指令建立產品表的遷移（migrations），首先使用以下指令：php artisan make:migration create_products_table --create=products
中找到一個文件，並且必須將以下程式碼放在migrations文件中以用於建立products表。 <?php
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateProductsTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('products', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->text('detail');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::dropIfExists('products');
}
}
在這個步驟中，我們需要為產品crud應用新增resource路由。所以打開routes / web.php檔案並加入以下路由。
routes/web.phpRoute::resource('products','ProductController');
現在，我們應該建立一個新的控制器ProductController。因此要運行以下命令並建立新的控制器。下面的控制器用來建立resource控制器。
建立ProductController
php artisan make:controller ProductController --resource --model=Product
在下面的指令之後，你將會在這個路徑app/Http/Controllers/ProductController.php中找到新的檔案。
在這個控制器中，預設會建立7個方法如下所示:
1)index()
2)create()
#3)store()
4)show()
5)edit()
6)update()
#7)destroy( )
因此，讓我們複製下面的程式碼並將其放到ProductController.php檔案中。
app/Http/Controllers/ProductController.php
<?php
namespace App\Http\Controllers;
use App\Product;
use Illuminate\Http\Request;
class ProductController extends Controller
{
/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
public function index()
{
$products = Product::latest()->paginate(5);
return view('products.index',compact('products'))
->with('i', (request()->input('page', 1) - 1) * 5);
}
/**
* Show the form for creating a new resource.
*
* @return \Illuminate\Http\Response
*/
public function create()
{
return view('products.create');
}
/**
* Store a newly created resource in storage.
*
* @param \Illuminate\Http\Request $request
* @return \Illuminate\Http\Response
*/
public function store(Request $request)
{
request()->validate([
'name' => 'required',
'detail' => 'required',
]);
Product::create($request->all());
return redirect()->route('products.index')
->with('success','Product created successfully.');
}
/**
* Display the specified resource.
*
* @param \App\Product $product
* @return \Illuminate\Http\Response
*/
public function show(Product $product)
{
return view('products.show',compact('product'));
}
/**
* Show the form for editing the specified resource.
*
* @param \App\Product $product
* @return \Illuminate\Http\Response
*/
public function edit(Product $product)
{
return view('products.edit',compact('product'));
}
/**
* Update the specified resource in storage.
*
* @param \Illuminate\Http\Request $request
* @param \App\Product $product
* @return \Illuminate\Http\Response
*/
public function update(Request $request, Product $product)
{
request()->validate([
'name' => 'required',
'detail' => 'required',
]);
$product->update($request->all());
return redirect()->route('products.index')
->with('success','Product updated successfully');
}
/**
* Remove the specified resource from storage.
*
* @param \App\Product $product
* @return \Illuminate\Http\Response
*/
public function destroy(Product $product)
{
$product->delete();
return redirect()->route('products.index')
->with('success','Product deleted successfully');
}
}#OK，執行下面指令後，你會找到app/Product.php，並將下面的內容放入Product.php檔案中:
app/Product.php<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Product extends Model
{
/**
* The attributes that are mass assignable.
*
* @var array
*/
protected $fillable = [
'name', 'detail'
];
}
現在我們進入最後一步。在這一步驟中，我們只需要建立blade檔案。所以我們主要需要建立佈局文件，然後建立新的資料夾“products”，然後建立crud app的blade文件。最後需要建立以下blade檔案:
1) layout.blade.php
2) index.blade.php
3) show.blade.php
##4) form.blade.php
5) create.blade.php
6) edit.blade.php
讓我們建立下面的文件，並放入下面的程式碼。
resources/views/products/layout.blade.php
<!DOCTYPE html>
<html>
<head>
<title>Laravel 5.6 CRUD Application</title>
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-alpha/css/bootstrap.css" rel="stylesheet">
</head>
<body>
<div class="container">
@yield('content')
</div>
</body>
</html>resources/views/products/index.blade.php
@extends('products.layout')
@section('content')
<div class="row">
<div class="col-lg-12 margin-tb">
<div class="pull-left">
<h2>Laravel 5.6 CRUD Example from scratch</h2>
</div>
<div class="pull-right">
<a class="btn btn-success" href="{{ route('products.create') }}"> Create New Product</a>
</div>
</div>
</div>
@if ($message = Session::get('success'))
<div class="alert alert-success">
<p>{{ $message }}</p>
</div>
@endif
<table class="table table-bordered">
<tr>
<th>No</th>
<th>Name</th>
<th>Details</th>
<th width="280px">Action</th>
</tr>
@foreach ($products as $product)
<tr>
<td>{{ ++$i }}</td>
<td>{{ $product->name }}</td>
<td>{{ $product->detail }}</td>
<td>
<form action="{{ route('products.destroy',$product->id) }}" method="POST">
<a class="btn btn-info" href="{{ route('products.show',$product->id) }}">Show</a>
<a class="btn btn-primary" href="{{ route('products.edit',$product->id) }}">Edit</a>
@csrf
@method('DELETE')
<button type="submit" class="btn btn-danger">Delete</button>
</form>
</td>
</tr>
@endforeach
</table>
{!! $products->links() !!}
@endsectionresources/views/products/show. blade.php
@extends('products.layout')
@section('content')
<div class="row">
<div class="col-lg-12 margin-tb">
<div class="pull-left">
<h2> Show Product</h2>
</div>
<div class="pull-right">
<a class="btn btn-primary" href="{{ route('products.index') }}"> Back</a>
</div>
</div>
</div>
<div class="row">
<div class="col-xs-12 col-sm-12 col-md-12">
<div class="form-group">
<strong>Name:</strong>
{{ $product->name }}
</div>
</div>
<div class="col-xs-12 col-sm-12 col-md-12">
<div class="form-group">
<strong>Details:</strong>
{{ $product->detail }}
</div>
</div>
</div>
@endsectionresources/views/products/create.blade.php
@extends('products.layout')
@section('content')
<div class="row">
<div class="col-lg-12 margin-tb">
<div class="pull-left">
<h2>Add New Product</h2>
</div>
<div class="pull-right">
<a class="btn btn-primary" href="{{ route('products.index') }}"> Back</a>
</div>
</div>
</div>
@if ($errors->any())
<div class="alert alert-danger">
<strong>Whoops!</strong> There were some problems with your input.<br><br>
<ul>
@foreach ($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
@endif
<form action="{{ route('products.store') }}" method="POST">
@csrf
<div class="row">
<div class="col-xs-12 col-sm-12 col-md-12">
<div class="form-group">
<strong>Name:</strong>
<input type="text" name="name" class="form-control" placeholder="Name">
</div>
</div>
<div class="col-xs-12 col-sm-12 col-md-12">
<div class="form-group">
<strong>Detail:</strong>
<textarea class="form-control" style="height:150px" name="detail" placeholder="Detail"></textarea>
</div>
</div>
<div class="col-xs-12 col-sm-12 col-md-12 text-center">
<button type="submit" class="btn btn-primary">Submit</button>
</div>
</div>
</form>
@endsectionresources/views/products/edit.blade.php
@extends('products.layout')
@section('content')
<div class="row">
<div class="col-lg-12 margin-tb">
<div class="pull-left">
<h2>Edit Product</h2>
</div>
<div class="pull-right">
<a class="btn btn-primary" href="{{ route('products.index') }}"> Back</a>
</div>
</div>
</div>
@if ($errors->any())
<div class="alert alert-danger">
<strong>Whoops!</strong> There were some problems with your input.<br><br>
<ul>
@foreach ($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
@endif
<form action="{{ route('products.update',$product->id) }}" method="POST">
@csrf
@method('PUT')
<div class="row">
<div class="col-xs-12 col-sm-12 col-md-12">
<div class="form-group">
<strong>Name:</strong>
<input type="text" name="name" value="{{ $product->name }}" class="form-control" placeholder="Name">
</div>
</div>
<div class="col-xs-12 col-sm-12 col-md-12">
<div class="form-group">
<strong>Detail:</strong>
<textarea class="form-control" style="height:150px" name="detail" placeholder="Detail">{{ $product->detail }}</textarea>
</div>
</div>
<div class="col-xs-12 col-sm-12 col-md-12 text-center">
<button type="submit" class="btn btn-primary">Submit</button>
</div>
</div>
</form>
@endsection現在，我們準備執行我們的crud應用程式的例子，所以執行以下命令快速運行:
php artisan serve
最後你就可以在瀏覽器上打開下面的網址進行查看測試:
http://localhost:8000/products
本篇文章就是關於Laravel 5.6中的CURD操作即創建，讀取，更新和刪除操作，希望對需要的朋友有幫助！
以上是Laravel 5.6中的CURD操作（程式碼範例詳解）的詳細內容。更多資訊請關注PHP中文網其他相關文章！
