Database migrations Validation Notification and mail File storage Job queues Task scheduling Testing Events and WebSockets Authentication 1Add an authentication middleware to your Laravel route web.php 1Route::get('/profile',ProfileController::class) ...
(2)数据库在laravel框架中的配置 在.env文件里面, 也可以在config目录下面的database.php文件里面配置。使用env函数,表示先从env文件里面获取,如果获取成功则使用,如果获取失败,则使用env函数的第二个参数。 注意:如果是php artisan serve方式启动的,修改了配置文件,则需要重新启动,才能读取修改后的配置文件;如果是wa...
Eloquent 是一个 ORM,全称为 Object Relational Mapping,翻译为 “对象关系映射”(如果只把它当成 Database Abstraction Layer 数组库抽象层那就太小看它了)。所谓 “对象”,就是本文所说的 “模型(Model)”;对象关系映射,即为模型间关系。中文文档: http://laravel-china.org/docs/eloquent#relationships 竹清 ...
request cycle, any further "read" operations will use the "write" connection. This ensures that any data written during the request cycle can be immediately read back from the database during that same request. It is up to you to decide if this is the desired behavior for your application...
Seeding initial data: Migrations work well with seeders to populate the database with default values. Rolling back changes:If a change introduces a bug, you can revert to a previous state usingmigrate:rollback. Any application that interacts with a database needs migrations. Here’s why: ...
database 目录:目录包含了数据迁移及填充文件,就是使用文件的方式,来管理数据库,创建一个PHP文件,在文件中设计表结构,运行该文件,完成表的创建。 public 目录:Laravel项目的web虚拟主机指定的目录(也就是网址根目录),项目的入口文件和系统的静态资源目录(css, img, js, uploads)后期使用的外部静态文件(js、 css....
Getting results from Criteria$posts = $this->repository->getByCriteria(new MyCriteria());Setting the default Criteria in Repositoryuse Prettus\Repository\Eloquent\BaseRepository; class PostRepository extends BaseRepository { public function boot(){ $this->pushCriteria(new MyCriteria()); // or $...
The data of the request level should be isolated by the coroutine ID. However, there are many singleton and static attributes in Laravel/Lumen, the data between different requests will affect each other, it's Unsafe. For example, the database connection is a singleton, the same database ...
SalesOrderID) AS MaxUnitPrice FROM Sales.SalesOrderHeader AS Ord; GO Laravel 中的写法 构建raw 语句 DB::raw 用于在查询中使用原始表达式。不仅限于 raw,也包括下述其他方法: selectRaw whereRaw / orWhereRaw havingRaw / orHavingRaw orderByRaw 具体用法参考官方文档:Database: Query Builder: Raw ...
namespaceIlluminate\Database\Eloquent\Concerns;traitHasAttributes{...publicfunctiongetAttribute($key){if(!$key){return;}//如果attributes数组的键等于 $keyif(array_key_exists($key,$this->attributes)||//应该强制转换的属性array_key_exists($key,$this->casts)||//属性访问器有 get"$key"Attribute...