$SpecsGroup = $specifications->groupBy('specification_key'); dd($SpecsGroup); 这将按specification_key返回组,但这些组多次包含相同的specification_value。 Illuminate\Database\Eloquent\Collection {#1572 ▼ #items: array:12 [▼ "RAM" => Illuminate\Database\Eloquent\Collection {#1522 ▼ #items: arra...
https://laravel.com/docs/7.x/collections#method-groupby 这显示了groubBy()返回的内容。试试这个:
The all method returns the underlying array represented by the collection:collect([1, 2, 3])->all(); // [1, 2, 3]average()Alias for the avg method.avg()The avg method returns the average value of a given key:$average = collect([['foo' => 10], ['foo' => 10], ['foo' =...
The all method returns the underlying array represented by the collection:collect([1, 2, 3])->all(); // [1, 2, 3]average()Alias for the avg method.avg()The avg method returns the average value of a given key:$average = collect([['foo' => 10], ['foo' => 10], ['foo' =...
一、需求:在数据搜索时最常见的就是调用同一个方法查询,而查询的字段却可能是其中一个或其中的几个字段一起组合查询,例如:对列表的搜索,基本上都是几个字段随意组合搜索。...网上找了很久,Laravel群里也问了几个,都说没有写过,于是自己写个吧。...,controller里只
Laravel Collection group by one column and sum another column within each group Ask Question Asked 3 years, 8 months ago Modified 3 months ago Viewed 2k times Part of PHP Collective Report this ad2 I have a collection of data which are required to be processed to be able to generate...
$description_name=$grouped->first()//the first group->first()//the first expense in group->description//the description object->name//the name This is just a little proof that you can get the name of the related model in the collection and use it to solve your question....
// Group products by the “name” column ->groupBy('name') // Retrieve products from the table as an array of objects ->get(); 1. 2. 3. 4. 5. 联结–join Laravel 的Query Builder支持数据库所有类型的 Join 语句。 联结语句用于组合具有这些表共同值的多个表中的记录。 例如有两个表users和...
return array_change_key_case((array) $results[0])['aggregate']; } } 可以看出来,aggregate 函数复制了一份 queryBuilder,只是缺少了 select、bingding 成员变量: public function cloneWithout(array $properties) { return tap(clone $this, function ($clone) use ($properties) { ...
useJenssegers\Mongodb\Eloquent\ModelasEloquent;classUserextendsEloquent{protected$collection='users_collection'; } 注意: Eloquent还假定每个集合都有一个名为id的主键列。您可以定义一个primaryKey属性来覆盖此约定。同样,您可以定义一个connection属性来覆盖使用模型时应该使用的数据库连接的名称。