Laravel 五 基础(十一)- 子视图和表单复用
Laravel 5 基础(十一)- 子视图和表单复用
我们需要处理编辑文章的问题。当然我们可以手工添加新的路由,就像这样:
<code>Route::get('/articles/{id}/edit', '[email protected]');</code>
让我们在命令行下使用 artisan
的 route:list
来查看我们当前的路由:
<code>php artisan route:list</code>
在符合 RESTful 的情况下,可能直接使用 laravel 的 resource
路由是一种好的选择,然我们将所有的路由都去掉,只添加唯一的一个:
<code>Route::resource('articles', 'ArticlesController');</code>
再次使用 <code>php artisan route:list</code> 查看路由,哇,一堆的符合我们期望的路由产生了。每一项都仔细查看一下。
现在在控制器中添加方法:
<code> public function edit($id) { $article = Article::findOrFail($id); return view('articles.edit', compact('article')); }</code>
现在创建视图
<code>@extends('layout')@section('content') <h1 id="Edit-article-title">Edit: {!! $article->title !!} </h1> <hr/> ...</code>
好吧,我承认这些代码都是从 create.blade.php
中拷贝出来的,修改了一下,问题是我们需要重复吗?后面我们会处理这个问题,现在来看一下表单的提交问题。在路由中 <code>php artisan route:list</code> ,再看一遍,修改使用了 PATCH
方法,我们来修改视图:
<code>{!! Form::open(['method' => 'PATCH', 'url' => 'articles/' . $article->id]) !!} </code>
在浏览器中访问 /articles/1/edit
,查看一下源代码,发现laravel自动生成了 _method=PATCH
的隐藏字段。
一问题是,我们编辑文章,但是文章的信息并没有显示出来,我们修改一下视图:
<code> {!! Form::model($article, ['method' => 'PATCH', 'url' => 'articles/' . $article->id]) !!}</code>
OK,everything's ok,除了 published_on
字段仍然设置为当前日期,后面我们来处理。
现在在控制器中添加方法:
<code> public function update($id, \Illuminate\Http\Request $request) { $article = Article::findOrFail($id); $article->update($request->all()); return redirect('articles'); }</code>
我们在修改的过程中也需要验证,让我们复用我们的 Request 类,将 CreateArticleRequest
更名为更通用的 ArticleRequest
,别忘了修改 store
方法中的参数。
<code> public function update($id, Requests\ArticleRequest $request) { $article = Article::findOrFail($id); $article->update($request->all()); return redirect('articles'); }</code>
现在剩下的问题是我们的新建和编辑使用了大部分相同的代码,比如显示错误,但他们存在两份,我们来修改这个问题。
我们直接在 views/articles
下面新建文件 list.blade.php
,并把错误处理代码从 create.blade.php
中拷贝出来:
<code>@if ($errors->any()) <ul class="alert alert-danger"> @foreach($errors->all() as $error) <li>{{ $error }}</li> @endforeach </ul>@endif</code>
在 create.blade.php
只需用下面语句替换错误处理代码即可:
<code>@include('articles.list')</code>
让我们再来处理表单代码,表单代码中除了 form
不大一样和提交按钮有区别,其他都差不多。我们创建一个视图 articles/form_partial.blade.php
,将代码拷贝出来
<code><div class="form-group"> {!! Form::label('title', 'Title:') !!} {!! Form::text('title', null, ['class' => 'form-control']) !!}</div><div class="form-group"> {!! Form::label('body', 'Body:') !!} {!! Form::textarea('body', null, ['class' => 'form-control']) !!}</div><div class="form-group"> {!! Form::label('published_at', 'Publish On:') !!} {!! Form::input('date', 'published_at', date('Y-m-d'), ['class' => 'form-control']) !!}</div><div class="form-group"> {{--这里要设置变量,依据是编辑还是修改来改变,当然也可以不放置在partial中--}} {!! Form::submit($submitButtonText, ['class' => 'btn btn-primary form-control']) !!}</div></code>
修改 create.blade.php
<code>@extends('layout')@section('content') <h1 id="Write-a-New-Article">Write a New Article</h1> <hr/> @include('articles.list') {{--使用我们添加的 illuminate\html 开源库--}} {!! Form::open(['url' => 'articles']) !!} @include('articles.form_partial', ['submitButtonText' => 'Add Article']) {!! Form::close() !!}@stop</code>
修改 edit.blade.php
<code>@extends('layout')@section('content') <h1 id="Edit-article-title">Edit: {!! $article->title !!} </h1> <hr/> @include('articles.list') {{--使用我们添加的 illuminate\html 开源库--}} {!! Form::model($article, ['method' => 'PATCH', 'url' => 'articles/' . $article->id]) !!} @include('articles.form_partial', ['submitButtonText' => 'Update Article']) {!! Form::close() !!}@stop</code>

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



Many users will choose the Huawei brand when choosing smart watches. Among them, Huawei GT3pro and GT4 are very popular choices. Many users are curious about the difference between Huawei GT3pro and GT4. Let’s introduce the two to you. . What are the differences between Huawei GT3pro and GT4? 1. Appearance GT4: 46mm and 41mm, the material is glass mirror + stainless steel body + high-resolution fiber back shell. GT3pro: 46.6mm and 42.9mm, the material is sapphire glass + titanium body/ceramic body + ceramic back shell 2. Healthy GT4: Using the latest Huawei Truseen5.5+ algorithm, the results will be more accurate. GT3pro: Added ECG electrocardiogram and blood vessel and safety

Why Snipping Tool Not Working on Windows 11 Understanding the root cause of the problem can help find the right solution. Here are the top reasons why the Snipping Tool might not be working properly: Focus Assistant is On: This prevents the Snipping Tool from opening. Corrupted application: If the snipping tool crashes on launch, it might be corrupted. Outdated graphics drivers: Incompatible drivers may interfere with the snipping tool. Interference from other applications: Other running applications may conflict with the Snipping Tool. Certificate has expired: An error during the upgrade process may cause this issu simple solution. These are suitable for most users and do not require any special technical knowledge. 1. Update Windows and Microsoft Store apps

Part 1: Initial Troubleshooting Steps Checking Apple’s System Status: Before delving into complex solutions, let’s start with the basics. The problem may not lie with your device; Apple's servers may be down. Visit Apple's System Status page to see if the AppStore is working properly. If there's a problem, all you can do is wait for Apple to fix it. Check your internet connection: Make sure you have a stable internet connection as the "Unable to connect to AppStore" issue can sometimes be attributed to a poor connection. Try switching between Wi-Fi and mobile data or resetting network settings (General > Reset > Reset Network Settings > Settings). Update your iOS version:

php提交表单通过后,弹出的对话框怎样在当前页弹出php提交表单通过后,弹出的对话框怎样在当前页弹出而不是在空白页弹出?想实现这样的效果:而不是空白页弹出:------解决方案--------------------如果你的验证用PHP在后端,那么就用Ajax;仅供参考:HTML code

Watch4pro and gt each have different features and applicable scenarios. If you focus on comprehensive functions, high performance and stylish appearance, and are willing to bear a higher price, then Watch 4 Pro may be more suitable. If you don’t have high functional requirements and pay more attention to battery life and reasonable price, then the GT series may be more suitable. The final choice should be decided based on personal needs, budget and preferences. It is recommended to carefully consider your own needs before purchasing and refer to the reviews and comparisons of various products to make a more informed choice.

BinaryX's token name change: from BNX to FOUR, and then to FORM, the deep meaning behind strategic adjustments BinaryX recently changed the token symbol from $FOUR to $FORM, which has attracted widespread attention from the industry. This is not the first time BinaryX has changed its name, and its token symbol has undergone a transition from BNX to FOUR. This article will explore in-depth the strategic intentions behind this series of name change. 1. Token name change process and strategic considerations BinaryX initially launched the $BNX token based on the BNB chain in 2021 to support its Play-to-Earn (P2E) gaming ecosystem. In early 2024, in order to optimize the economic model, BinaryX divided $BNX and gradually expanded to GameF

How to Optimize iPad Battery Life with iPadOS 17.4 Extending battery life is key to the mobile device experience, and the iPad is a good example. If you feel like your iPad's battery is draining too quickly, don't worry, there are a number of tricks and tweaks in iPadOS 17.4 that can significantly extend the run time of your device. The goal of this in-depth guide is not just to provide information, but to change the way you use your iPad, enhance your overall battery management, and ensure you can rely on your device for longer without having to charge it. By adopting the practices outlined here, you take a step toward more efficient and mindful use of technology that is tailored to your individual needs and usage patterns. Identify major energy consumers

请问如何修改url某一参数的参数值呢?是要拆开了再拼回去吗?那么请问如何修改url某一参数的参数值呢?是要拆开了再拼回去吗?http://127.0.0.1/myo/newuser.php?mod=search&type=fastone比如现在我要修改mod=new要怎么做呢?------解决方案--------------------发送了请求
