$theme=Theme::find($id);$theme->topics()->replies->delete();$theme->delete();returnredirect('/') The relations between all the things are okay but I can list them here, A theme has many Topics A Topic has many
你已经准备好从 Eloquent 方法中受益了。 Laravel 允许你将任何表分配给任何 Eloquent Model Instance。这不是必需的,但以相应表的单数形式命名 Model Instances 是一个好习惯。这个名字应该是它所代表的表名的单数形式。如果你必须使用不遵循这个一般规则的名字,你可以通过在 Model Instance 内部设置受保护的$table变...
Laravel 自带的 Eloquent ORM 为您的数据库提供了一个优雅的、简单的 ActiveRecord 实现。每一个数据库的表有一个对应的 "Model" 用来与这张表交互。在开始之前,确认已在 app/config/database.php 文件中配置好数据库连接。基本用法首先,创建一个 Eloquent 模型。模型通常在 app/models 目录,但是您可以自由...
To delete a model, call the delete method on a model instance:1$flight = App\Flight::find(1); 2 3$flight->delete();Deleting An Existing Model By KeyIn the example above, we are retrieving the model from the database before calling the delete method. However, if you know the ...
publicfunctionget($columns=['*']){$builder=$this->applyScopes();//如果获取到了model还会load要预加载的模型关联,避免运行n+1次查询if(count($models=$builder->getModels($columns))>0){$models=$builder->eagerLoadRelations($models);}//创建一个新的Eloquent Collection实例return$builder->getModel()...
To delete a model, call the delete method on a model instance:1$flight = App\Flight::find(1); 2 3$flight->delete();Deleting An Existing Model By KeyIn the example above, we are retrieving the model from the database before calling the delete method. However, if you know the ...
laravel中delete方法出现问题:on-static method Illuminate\Database\Eloquent\Model::delete() should not be called statically 错误代码: $res = Category::delete($id); 修改: $res = Category::where('cate_id',$id)->delete();
$models = $builder->eagerLoadRelations($models); } return $builder->getModel()->newCollection($models); } public function getModels($columns = ['*']) { return $this->model->hydrate( $this->query->get($columns)->all() )->all(); ...
...namespace App; use Illuminate\Database\Eloquent\Model; class Profile extends Model {} 因为使用了 --migration 选项,laravel...,我们开始使用关联关系来处理数据的一致性。...unsigned(); $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade'); 写在最后 本文介绍了...
After you've defined your relations you can simply triggerdelete()orrestore()on yourModeland your relations will have the same task performed. User::first()->delete(); User::withTrashed()->first()->restore(); It can also be used with query builder in this way because query builder liste...