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...
'email'=>'exists:connection.staff,email' 可以指定用来确定表名的Eloquent模型,而不是直接指定表名: 'user_id'=>'exists:App\User,id' 如果要定制验证规则执行的查询,则可以使用Rule类来流畅地定义规则。在此示例中,我们还将验证规则指定为数组,而不是使用|字符来分隔它们: useIlluminate\Validation\Rule; Vali...
Check if we can run an "exists" query to optimize performance. Parameters string $operator int $count Return Value bool at line 147 void __construct(Builder $query) Create a new Eloquent query builder instance. Parameters Builder $query Return Value void at line 158 Model|Builder mak...
use Illuminate\Database\Eloquent\Model; class Flight extends Model { /** * The attributes that are mass assignable. * * @var array */ protected $fillable = ['name']; }Once we have made the attributes mass assignable, we can use the create method to insert a new record in the databas...
第二章 ,MVC 中的模型,介绍了 MVC 架构模式中模型层的功能、结构、目的、在 SOLID 设计模式中的作用、Laravel 如何使用它以及 Laravel 模型层和 Eloquent ORM 的优势。还讨论了处理数据的 Laravel 类。 第三章 ,MVC 中的视图,介绍了 MVC 架构模式中视图层的功能、结构、目的以及 Laravel 视图层和 Blade 模板...
To check if the type for the Elasticquent model exists yet, use typeExists:$typeExists = Book::typeExists();Indexing DocumentsTo index all the entries in an Eloquent model, use addAllToIndex:Book::addAllToIndex();You can also index a collection of models:...
In your controller methods, implement the CRUD operations using the Eloquent ORM and views. Here’s a high-level overview of what each method should do: Index:Retrieve a list of items and display them. Create:Show a form to create a new item. ...
To check if the type for the Elasticquent model exists yet, use typeExists:$typeExists = Book::typeExists(); Indexing DocumentsTo index all the entries in an Eloquent model, use addAllToIndex:Book::addAllToIndex(); You can also index a collection of models:...
Well if you're throwing an exception if the record exists then you'd only be creating so has to be this.. $schedule = Schedule::find($id); if ($schedule->exists()) { throw new Exception('Record exists'); } else { $schedule->create($request->validate([ 'subject' => 'required'...
If you are familiar withEloquent Queries, there is the same functionality. Available operations To see the available operations, check theEloquentsection. Schema The database driver also has (limited) schema builder support. You can easily manipulate collections and set indexes. ...