$list=Participant::where('IDUser',1)->get();for($itemin$list) {$event=$item->event;// ... other code ...} but it doesn't seem very efficient to send so many queries to the server. What is the best way to perform awherethrough a model relationship using Laravel 5 and Eloquent?
'place_id', // foreign key on Timeline 'id', // local key on Place (parent) 'id' // local key on going through Place (child) ); } 在尝试selectRaw时创建的toRawSql()查询: SELECT `places`.*, ( SELECT count(*) FROM `timelines` WHERE `places`.`id` = `timelines`.`place_id`) ...
In cases where you don't want the sort to be part of the relationship definition as in the accepted answer, you can also pass an array to the Eloquent::with() method. The key indicates the relationship name, and the value is a function that is passed the Builder object: $sortDirection...
A one-to-many relationship is used to define relationships where a single model owns any amount of other models. For example, a blog post may have an infinite number of comments. Like all other Eloquent relationships, one-to-many relationships are defined by placing a function on your ...
You may query the posts relationship and add additional constraints to the relationship like so:$user = App\User::find(1); $user->posts()->where('active', 1)->get();Note that you are able to use any of the query builder methods on the relationship!
具体来说,通过追加模型添加查询结果是通过在模型类中定义访问器(accessor)或关联关系(relationship)来实现的。访问器允许我们在模型中定义一个方法,该方法将返回我们想要追加到查询结果中的数据。关联关系则允许我们在模型之间建立关联,并通过关联关系方法来获取相关模型的数据。 通过追加模型添加查询结果的优势在于可以轻松...
return$this->where('verified',1)->whereNotNull('deleted_at')->get(); } public functiongetArticles() { return$this->whereHas('user', function ($q) {$q->where('verified',1)->whereNotNull('deleted_at'); })->get(); } 好:
Summary of problem or feature request Hello, I'm trying to implement http://dt54.yajrabox.com/eloquent/has-one but I have a requirement to also add a ->where('XX', '=', 1) in the relationship, see below the snippets from the Model(the fi...
我有这个relationship是一个项目和一个插曲项目: public function episodes() { return $this->hasMany(episode::class); } 剧集: public function item() { return $this->belongsTo(item::class); } 在控制器中 $latestanimes = DB::table('episodes')->where('category' 浏览1提问于2016-02-28得票数...
Read Also:Laravel Check If Relationship Data is Empty Example <?php namespaceApp\Http\Controllers; useIlluminate\Http\Request; useApp\Models\User; classUserControllerextendsController { /** * Write code on Method * * @return response()