search
HomePHP FrameworkLaravelDisappeared Pivot model ID (Laravel pitfall diary)

Antecedents

Recently, the company's back-end project has been transformed and upgraded, from the previous laravel5.6 version to laravel5.8 version. After the upgrade, the system generated a lot of SQL execution It was wrong, but it ran well in the old version of the system, so today's journey of digging holes was born.

Recommended: "laravel tutorial"

Project environment

Old system (linux laravel5.6 php7.2 mysql5. 7)

Upgraded new system (linux laravel5.8 php7.2 mysql5.7)

Only upgraded the laravel framework version, and did not upgrade other related service dependencies.

However, a large number of SQL execution errors occurred. The exception monitoring is as follows:

Disappeared Pivot model ID (Laravel pitfall diary)

Analysis process

What caused this service error It is such a piece of business logic, which is simulated through a demo below.

$pivot = UserRole::firstOrCreate([
    'user_id' => 3,
    'role_id' => 3,
]);
$this->addRoleHistory($user,$pivot->id);
dd($pivot->id);

In laravel5.6 version, this code runs without any problem, but upgrading to version 5.8 will cause a large number of SQL execution errors , like the following.

laravel5.6:
    dd($pivot->id); //10002
laravel5.8:
    dd($pivot->id); //null

In 5.6, the saved data can still get the ID normally, but why can’t it work in 5.8, so I immediately checked the release notes of laravel5.8, and there was nothing I found a change to cancel the acquisition of auto-increment ID in the Pivot model, so I started to check the 5.8 source code. . .

First of all, we compared the firstOrCreate function of 5.6 and 5.8 and found that there were no changes and the code logic was executed correctly.

Disappeared Pivot model ID (Laravel pitfall diary)

##Then continue to read the code of the model->save() function

, and find that the non-existent data is inserted through the insertAndSetId function and the primary key is set ID

Disappeared Pivot model ID (Laravel pitfall diary)

But the insertAndSetId function is controlled through a member attribute such as incrementing. The default value of the attribute is true

Disappeared Pivot model ID (Laravel pitfall diary)

When this attribute changes, the next step will be executed. Has this member attribute been manipulated?

So I immediately checked the source code of the pivot model of 5.8.

Disappeared Pivot model ID (Laravel pitfall diary)

Finally found that in the intermediate table Pivot Class of 5.8, incrementing is set to false by default, so The data was successfully inserted, but the primary key ID after insertion was not set, causing the remaining services to crash and fail to run normally...

Repair plan

In each Pivot Just re-overwrite the incrementing attribute value in Class and set it to true.

class UserRole extends Pivot
{
    public $incrementing = true;
    protected $fillable = [
        'user_id',
        'role_id',
    ];
}

After repair:

laravel5.8:
    dd($pivot->id); //10003

Postscript

So I looked at it carefully again In the laravel5.7~laravel5.8 release notes, I found that the reason for this change was still not mentioned, so I went to Google again and still couldn’t find the reason for this joke.

Disappeared Pivot model ID (Laravel pitfall diary)

In the end, the problems caused by the change were successfully repaired. It also reminded us that we still need to pay more attention to UT coverage and version compatibility change testing in subsequent version upgrades to ensure project quality from multiple dimensions.

The above is the detailed content of Disappeared Pivot model ID (Laravel pitfall diary). For more information, please follow other related articles on the PHP Chinese website!

Statement
This article is reproduced at:segmentfault. If there is any infringement, please contact admin@php.cn delete
laravel单点登录方法详解laravel单点登录方法详解Jun 15, 2022 am 11:45 AM

本篇文章给大家带来了关于laravel的相关知识,其中主要介绍了关于单点登录的相关问题,单点登录是指在多个应用系统中,用户只需要登录一次就可以访问所有相互信任的应用系统,下面一起来看一下,希望对大家有帮助。

一起来聊聊Laravel的生命周期一起来聊聊Laravel的生命周期Apr 25, 2022 pm 12:04 PM

本篇文章给大家带来了关于laravel的相关知识,其中主要介绍了关于Laravel的生命周期相关问题,Laravel 的生命周期从public\index.php开始,从public\index.php结束,希望对大家有帮助。

laravel中guard是什么laravel中guard是什么Jun 02, 2022 pm 05:54 PM

在laravel中,guard是一个用于用户认证的插件;guard的作用就是处理认证判断每一个请求,从数据库中读取数据和用户输入的对比,调用是否登录过或者允许通过的,并且Guard能非常灵活的构建一套自己的认证体系。

laravel中asset()方法怎么用laravel中asset()方法怎么用Jun 02, 2022 pm 04:55 PM

laravel中asset()方法的用法:1、用于引入静态文件,语法为“src="{{asset(‘需要引入的文件路径’)}}"”;2、用于给当前请求的scheme前端资源生成一个url,语法为“$url = asset('前端资源')”。

实例详解laravel使用中间件记录用户请求日志实例详解laravel使用中间件记录用户请求日志Apr 26, 2022 am 11:53 AM

本篇文章给大家带来了关于laravel的相关知识,其中主要介绍了关于使用中间件记录用户请求日志的相关问题,包括了创建中间件、注册中间件、记录用户访问等等内容,下面一起来看一下,希望对大家有帮助。

laravel中间件基础详解laravel中间件基础详解May 18, 2022 am 11:46 AM

本篇文章给大家带来了关于laravel的相关知识,其中主要介绍了关于中间件的相关问题,包括了什么是中间件、自定义中间件等等,中间件为过滤进入应用的 HTTP 请求提供了一套便利的机制,下面一起来看一下,希望对大家有帮助。

laravel的fill方法怎么用laravel的fill方法怎么用Jun 06, 2022 pm 03:33 PM

在laravel中,fill方法是一个给Eloquent实例赋值属性的方法,该方法可以理解为用于过滤前端传输过来的与模型中对应的多余字段;当调用该方法时,会先去检测当前Model的状态,根据fillable数组的设置,Model会处于不同的状态。

laravel路由文件在哪个目录里laravel路由文件在哪个目录里Apr 28, 2022 pm 01:07 PM

laravel路由文件在“routes”目录里。Laravel中所有的路由文件定义在routes目录下,它里面的内容会自动被框架加载;该目录下默认有四个路由文件用于给不同的入口使用:web.php、api.php、console.php等。

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.

EditPlus Chinese cracked version

EditPlus Chinese cracked version

Small size, syntax highlighting, does not support code prompt function

Dreamweaver Mac version

Dreamweaver Mac version

Visual web development tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft