...->primary(['course_id', 'student_id']); }); Model Relationship Laravel 另一个强大之处在于可以通过 Eloquent 抽象「模型与模型...course_id" in (1) How to save data to database 如何将数据保存到数据库 Laravel Factory 提供了一种很好的方式来 M
publicfunctionsave(Model$model) { $this->setForeignAttributesForCreate($model); return$model->save()?$model:false; } protectedfunctionsetForeignAttributesForCreate(Model$model) { $model->setAttribute($this->getForeignKeyName(),$this->getParentKey()); } publicfunctiongetParentKey() { return$this-...
The create method instantiates model instances and persists them to the database using Eloquent's save method:1use App\Models\User; 2 3public function test_models_can_be_persisted() 4{ 5 // Create a single App\Models\User instance... 6 $user = User::factory()->create(); 7 8 /...
A seeder class only contains one method by default:run. This method is called when thedb:seedArtisan commandis executed. Within therunmethod, you may insert data into your database however you wish. You may use thequery builderto manually insert data or you may useEloquent model factories. ...
5use Laravel\Scout\Searchable; 6use Illuminate\Database\Eloquent\Model; 7 8class Post extends Model 9{ 10 use Searchable; 11}Once the trait has been added to your model, its information will be kept in sync with your search indexes by simply saving the model:1...
这里需要注意的是$this->provider这个provider是一个实现了IlluminateContractsAuthUserProvider类的provider, 我们看到目录IlluminateAuth下面有两个UserProvider的实现,分别为DatabaseUserProvider和EloquentUserProvider, 但是我们验证密码的时候是通过那个来验证的呢,看一下auth的配置文件 ...
For instance, to add a new record to a database, you create a new model instance (a PHP class representing a database table), set its properties, and use the save method. Reading data involves methods like find or where. Updating and deleting records are also simple. ...
Laravel Version: 5.8.26 PHP Version: 7.1.30 Database Driver & Version: pgsql => 11.3 Database : Postgresql 10 Description: When using (new Model())->save() on PostgreSQL database, the Illuminate\Database\Connection cast boolean to intege...
Every time you update your model, a new version containing the previous attributes will be stored in your database.All timestamps and the optional soft-delete timestamp will be ignored.Adding versions to existing dataVersionable creates a version on update() of the updated model. So, if you...
SQLSTATE[HY000] [1049]未知数据库'laravel'1.转到本地主机服务器，删除数据库，然后重新创建一个名为...