The Eloquent ORM included with Laravel provides you with an easy way of interacting with your database. This simplifies all CRUD (Create, read, update, and delete) operations and any other database queries. In this tutorial, you will learn how to check if a record exists with Laravel Eloque...
You may check for the existence of a table or column using the hasTable and hasColumn methods:1if (Schema::hasTable('users')) { 2 // The "users" table exists... 3} 4 5if (Schema::hasColumn('users', 'email')) { 6 // The "users" table exists and has an "email" column.....
Migrations are like version control for your database, allowing your team to define and share the application's database schema definition. If you have ever had to tell a teammate to manually add a column to their local database schema after pulling in your changes from source control, you'...
useIlluminate\Support\Facades\Auth;// 检查具有特定id的用户是否已登录functioncheckUserLogin($userId){if(Auth::check()&&Auth::id()==$userId){// 用户已登录且id匹配returntrue;}else{// 用户未登录或id不匹配returnfalse;}} 这是一个简单的函数,你可以将其放在你的控制器或路由文件中,并传入要...
accepted_if:anotherfield,value,...如果另一个正在验证的字段等于指定的值,则验证中的字段必须为 yes,on,1 或true。 这对于验证「服务条款」接受或类似字段很有用。active_url根据dns_get_record PHP 函数,验证中的字段必须具有有效的 A 或 AAAA 记录。 提供的 URL 的主机名使用 parse_url PHP 函数...
Unique (Database) URL UUID accepted 验证字段必须是 yes, on, 1,或 true。这在确认「服务条款」是否同意时相当有用。 active_url 根据PHP 函数 dns_get_record ,验证字段必须具有有效的 A 或 AAAA 记录。 after:date 验证字段必须是给定日期之后的值。日期值将传递到 PHP 函数 strto...
('files', $files);}public function check(Request $request){$path = $request->input('path', $this->path);$filename = $request->input('filename', null);if($filename){if(!file_exists($path . $filename)){Flash::error('磁盘文件已删除,刷新文件列表');}else{Flash::success('文件有效...
For usage outside Laravel, check out theCapsule managerand add: AI检测代码解析 $capsule->getDatabaseManager()->extend('mongodb', function($config, $name) { $config['name'] = $name; return new Jenssegers\Mongodb\Connection($config); ...
but be aware that it will generate a route for every single record in your permalinks table, so I DO NOT recommend it if you have a large amount of permalinks, as you may end up with a huge base64 encoded string in your bootstrap/cache/routes.php which may really slow down your appl...
To check if the type for the Elasticquent model exists yet, usetypeExists: $typeExists= Book::typeExists(); Indexing Documents To index all the entries in an Eloquent model, useaddAllToIndex: Book::addAllToIndex(); You can also index a collection of models: ...