laravel 路由

1. 路由

在 route.php文件下最后增加一行：

Route::group(['prefix' => 'admin', 'namespace' => 'Admin'], function()

{

  Route::get('/', 'AdminHomeController@index');

});

2. 控制器

我们可以使用 Artisan 非常方便地构建控制器：

php artisan make:controller Admin/AdminHomeController

root@cy-VirtualBox:/var/www/html/laravel5.0# php artisan make:controller Admin/AdminHomeController

PHP Warning:  Module 'PDO' already loaded in Unknown on line 0

PHP Warning:  Module 'json' already loaded in Unknown on line 0

PHP Warning:  Module 'phalcon' already loaded in Unknown on line 0

Controller created successfully.

root@cy-VirtualBox:/var/www/html/laravel5.0#

得到 `learnlaravel5/app/Http/Controllers/Admin/AdminHomeController.php` 文件。

在 `class AdminHomeController extends Controller {` 上面增加一行：

use App\Page;

修改 index() 的代码如下：

public function index()
{
return view('AdminHome')->withPages(Page::all());
}

3. 视图

新建 `learnlaravel5/resources/views/AdminHome.blade.php`：

@extends('app')

@section('content')
<div class="container">
<div class="row">
<div class="col-md-10 col-md-offset-1">
<div class="panel panel-default">
<div class="panel-heading">后台首页</div>

<div class="panel-body">

<a href="{{ URL('admin/pages/create') }}" class="btn btn-lg btn-primary">新增</a>

@foreach ($pages as $page)
<hr>
<div class="page">
<h4>{{ $page->title }}</h4>
<div class="content">
<p>
{{ $page->body }}
</p>
</div>
</div>
<a href="{{ URL('admin/pages/'.$page->id.'/edit') }}" class="btn btn-success">编辑</a>

<form action="{{ URL('admin/pages/'.$page->id) }}" method="POST" style="display: inline;">
<input name="_method" type="hidden" value="DELETE">
<input type="hidden" name="_token" value="{{ csrf_token() }}">
<button type="submit" class="btn btn-danger">删除</button>
</form>
@endforeach

</div>
</div>
</div>
</div>
</div>
@endsection

最后：打开  http://192.168.30.103/laravel5.0/public/admin

Laravel

Home
chuanyu 

后台首页
新增

Title 0

Body 0

编辑 
删除

Title 1

Body 1

编辑 
删除

Title 2

Body 2

编辑 
删除

Title 3

Body 3

编辑 
删除

Title 4

Body 4

编辑 
删除

Title 5

Body 5

编辑 

删除

Title 6

Body 6

编辑 

删除

Title 7

Body 7

编辑 

删除

Title 8

Body 8

编辑 

删除

Title 9

Body 9

编辑 

4. 完成 Pages 管理功能

接下来，我将记录下我实现 Pages 管理功能的过程，不再做过多的阐述。大家有问题可以直接在本文下面留言，我会及时回复。

4.1 修改路由 learnlaravel5/app/Http/routes.php

Route::group(['prefix' => 'admin', 'namespace' => 'Admin'], function()
{
Route::get('/', 'AdminHomeController@index');
Route::resource('pages', 'PagesController');
});

此处增加了一条“资源控制器”，中文文档地址：http://laravel-china.org/docs/5.0/controllers#restful-resource-controllers

4.2 创建 learnlaravel5/app/Http/Controllers/Admin/PagesController.php

运行：

php artisan make:controller Admin/PagesController

4.3 修改 learnlaravel5/app/Http/Controllers/Admin/PagesController.php 为：

<?php namespace App\Http\Controllers\Admin;

use App\Http\Requests;
use App\Http\Controllers\Controller;

use Illuminate\Http\Request;

use App\Page;
use Redirect, Input, Auth;

class PagesController extends Controller {

/**
* Show the form for creating a new resource.
*
* @return Response
*/
public function create()
{
return view('admin.pages.create');
}

/**
* Store a newly created resource in storage.
*
* @return Response
*/
public function store(Request $request)
{
$this->validate($request, [
'title' => 'required|unique:pages|max:255',
'body' => 'required',
]); //这4行会报错，注释掉就ok了

$page = new Page;
$page->title = Input::get('title');
$page->body = Input::get('body');
$page->user_id = 1;//Auth::user()->id;

if ($page->save()) {
return Redirect::to('admin');
} else {
return Redirect::back()->withInput()->withErrors('保存失败！');
}

}

/**
* Show the form for editing the specified resource.
*
* @param  int  $id
* @return Response
*/
public function edit($id)
{
return view('admin.pages.edit')->withPage(Page::find($id));
}

/**
* Update the specified resource in storage.
*
* @param  int  $id
* @return Response
*/
public function update(Request $request,$id)
{
$this->validate($request, [
'title' => 'required|unique:pages,title,'.$id.'|max:255',
'body' => 'required',
]);//同上，这4行会报错，注释掉就ok

$page = Page::find($id);
$page->title = Input::get('title');
$page->body = Input::get('body');
$page->user_id = 1;//Auth::user()->id;

if ($page->save()) {
return Redirect::to('admin');
} else {
return Redirect::back()->withInput()->withErrors('保存失败！');
}
}

/**
* Remove the specified resource from storage.
*
* @param  int  $id
* @return Response
*/
public function destroy($id)
{
$page = Page::find($id);
$page->delete();

return Redirect::to('admin');
}

}

4.4 创建视图文件

首先在 learnlaravel5/resources/views 下创建 admin/pages 两级文件夹。

然后创建 learnlaravel5/resources/views/admin/pages/create.blade.php：

@extends('app')

@section('content')
<div class="container">
<div class="row">
<div class="col-md-10 col-md-offset-1">
<div class="panel panel-default">
<div class="panel-heading">新增 Page</div>

<div class="panel-body">

@if (count($errors) > 0)
<div class="alert alert-danger">
<strong>Whoops!</strong> There were some problems with your input.<br><br>
<ul>
@foreach ($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
@endif

<form action="{{ URL('admin/pages') }}" method="POST">
<input type="hidden" name="_token" value="{{ csrf_token() }}">
<input type="text" name="title" class="form-control" required="required">
<br>
<textarea name="body" rows="10" class="form-control" required="required"></textarea>
<br>
<button class="btn btn-lg btn-info">新增 Page</button>
</form>

</div>
</div>
</div>
</div>
</div>
@endsection

之后创建 learnlaravel5/resources/views/admin/pages/edit.blade.php：

@extends('app')

@section('content')
<div class="container">
<div class="row">
<div class="col-md-10 col-md-offset-1">
<div class="panel panel-default">
<div class="panel-heading">编辑 Page</div>

<div class="panel-body">

@if (count($errors) > 0)
<div class="alert alert-danger">
<strong>Whoops!</strong> There were some problems with your input.<br><br>
<ul>
@foreach ($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
@endif

<form action="{{ URL('admin/pages/'.$page->id) }}" method="POST">
<input name="_method" type="hidden" value="PUT">
<input type="hidden" name="_token" value="{{ csrf_token() }}">
<input type="text" name="title" class="form-control" required="required" value="{{ $page->title }}">
<br>
<textarea name="body" rows="10" class="form-control" required="required">{{ $page->body }}</textarea>
<br>
<button class="btn btn-lg btn-info">编辑 Page</button>
</form>

</div>
</div>
</div>
</div>
</div>
@endsection

4.5 查看结果

后台首页 http://fuck.io:88/admin ：



新增 Page http://fuck.io:88/admin/pages/create ：



编辑 Page http://fuck.io:88/admin/pages/1/edit ：



页面上的新增、编辑、删除的功能均已经完成，并且加入了表单验证，Pages 管理功能完成！

 $this->validate($request,
[
            'title' => 'required|unique:pages|max:255',
            'body' => 'required',
        ]);
会报错，Use of undefined constant
request - assumed 'request'，去掉则没事

参考：http://lvwenhan.com/laravel/433.html