Laravel的create页面和edit页面共用表单,
但是edit的view页面有变量,就是从控制器中把查询出来的内容,然后return到view,
而create的控制器,是没有数据返回的,
这样,共用表单就会在create时报错,说有未定义的变量,
怎么破?
回复内容:
Laravel的create页面和edit页面共用表单,
但是edit的view页面有变量,就是从控制器中把查询出来的内容,然后return到view,
而create的控制器,是没有数据返回的,
这样,共用表单就会在create时报错,说有未定义的变量,
怎么破?
直接一份就可以了
<code><input name="end" value="{{isset($data['end'])?$data['end']:''}}" type="text" id="end_time" placeholder=""></code>
假设你返回给blade模板引擎一个模型变量$post
,同时使用了web
中间件(session
支持),你可以这样共用一个form.blade.php
,:
一、保留旧的输入项目(使用old方法),比如提交表单,但验证失败,页面在提交刷新后,保留上次提交数据
<code><input type="text" name="title" id="title" value="{{ ! empty(old('title')) ? old('title') : (isset($post) ? $post->title : '') }}"></code>
二、不需要保留旧的输入项目
<code><input type="text" name="title" id="title" value="{{ isset($post) ? $post->title : '' }}"></code>
写两份或者在需要的地方检查变量是否存在
不需要写两份,
新建一个form.blade.php,存储表单选项,用isset判断是否存在再输出,或者你用Forms & HTML builder更容易
如果是自己写的input表单,那么这样写:
<code><input type="text" value="{{$s or ''}}"> </code>
如果使用了laravel的Form ,那么将更加简洁:
在 create.blade.php中:
<code>{!! Form::open(['url'=>'article']) !!} @include('article._form', ['submitButton'=>'添加文章']) {!! Form::close() !!}</code>
在edit.blade.php中
<code>{!! Form::model($article, ['method'=>'PATCH', 'url'=>['article', $article->id]]) !!} @include('article._form', ['submitButton'=> '修改文章']) {!! Form::close() !!}</code>
那么,需要一个公共的表单部分:_form.blade.php,就是表单部分
我觉得不要为了使用一个框架而使用一个框架,laravel为我们提供了很多的便捷的操作,如果在使用这款框架,就应该试着去接受他们

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

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

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

Dreamweaver Mac version
Visual web development tools

WebStorm Mac version
Useful JavaScript development tools

Zend Studio 13.0.1
Powerful PHP integrated development environment