则仅表示关系已被加载,直接返回if($this->relationLoaded($key)){return$this->relations[$key];}//确定给定的键是否是模型上的关系方法if(!$this->isRelation($key)){return;}//处理延迟加载冲突if($this->preventsLazyLoading){$this->handleLazyLoadingViolation($key);}return$this->getRelationshipFromMeth...
To define the inverse of a hasMany relationship, define a relationship function on the child model which calls the belongsTo method:1<?php 2 3namespace App; 4 5use Illuminate\Database\Eloquent\Model; 6 7class Comment extends Model 8{ 9 /** 10 * Get the post that owns the ...
$articles = Article::latest()->published()->get(); 1. 再去看看效果,相信你刷新之后还是一样的。 总结 又是最后的结尾了,这里我们简单的介绍了queryScope和setAttribute的用法,下一节打算说说Eloquent的一个重要的内容:Eloquent Relationship。那个时候也就会越来越觉得laravel的强大了。 最后:Happy Hacking...
publicfunction getFullNameAttribute() {return$this->isVerifiedClient() ? $this->getFullNameLong() : $this->getFullNameShort(); }publicfunction isVerfiedClient() {returnauth()->user() && auth()->user()->hasRole('client') && auth()->user()->isVerified(); }publicfunction getFullName...
3 ->get();The withTrashed method may also be used on a relationship query:1$flight->history()->withTrashed()->get();Retrieving Only Soft Deleted ModelsThe onlyTrashed method will retrieve only soft deleted models:1$flights = App\Flight::onlyTrashed() 2 ->where('airline_id', 1) 3 ->ge...
注意在这里我们使用了laravel5提供的route model binding特性,我们在控制器中使用Task类typehinting了task参数,而该task参数,而该task参数和routes.php中定义的wildcast路由Route::get('tasks/{task}','xxx'}定义的task相匹配,因此laravel在调用我们的控制器时自动注入Task模型(以id为索引)。这个功能后续再做进一步的...
public function getFullNameShort() { return $this->first_name[0] . '. ' . $this->last_name; } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 强大的模型 & 简单控制器 如果你使用查询构造器或原始 SQL 来查询,请将所有与数据库相关的逻辑放入 Eloq...
Laravel提供了一个非常好用的ORM(Object Relationship Mapping)为Eloquent ORM,其实就是Model层,来管理数据库中的数据表且一一对应关系。Eloquent比较好用在于它提供了很多Feature功能模块,这些模块提供了许多面向对象的方法便于使用,这样就不用写SQL语句了,且代码看起来也很舒服。。不过有时也推荐使用它的Query Builder查...
due to limitations in Laravel's event listeners, there is no way to distinguish between a call todelete()versus a call toforceDelete(). For this reason,before you force delete a model, you must manually delete any of the relationship data(unless your pivot tables uses cascading deletes). ...
When using JSON columns in your database, the field won't be defined as a "relationship", but rather a simple column with nested data. To get a nested object that's not a database relationship, use the is_relation attribute in your Type:...