Laravel雄辩:与groupBy合计 [英] Laravel Eloquent: sum with groupBy
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问题描述
到目前为止,我已经尝试过:
$ this-> data ['no_of_pages'] = Document :: sum('no_of_pages')
- > groupBy('users_editor_id');
哪一个会话给我调用非对象的成员函数groupBy()因为sum()已经执行了查询,并且在应用grouBy()的时候已经准备好了)。所以有人可以指导我吗?
解决方案
Document :: groupBy('users_editor_id' b $ b - > selectRaw('sum(no_of_pages)as sum,users_editor_id')
- > pluck('sum','users_editor_id');
//原来的列表(),它被弃用为有利于5.2
//中的摘要,并完全在5.3
// - > lists('sum')中完全删除, 'users_editor_id');
//返回数组,如下所示:
array(
users_editor_id => sum,
...
)
或者这样(我不会使用,因为它不会是实际的ORM结果):
Document :: groupBy('users_editor_id')
- > selectRaw('*,sum(no_of_pages)as sum' )
- > get();
//返回带有额外和字段的Document伪模型的集合
Need eloquent/fluent query to get sum with groupBy function.
So far I have tried:
$this->data['no_of_pages'] = Document::sum('no_of_pages')
->groupBy('users_editor_id');
Which ofcourse gives me call to member function groupBy() on non-object
because of the fact that sum() will already execute the query and have result ready by the time grouBy() is applied. So can anyone guide me?
解决方案
Document::groupBy('users_editor_id')
->selectRaw('sum(no_of_pages) as sum, users_editor_id')
->pluck('sum','users_editor_id');
// originally lists(), which was deprecated in favour of pluck in 5.2
// and dropped completely in 5.3
// ->lists('sum','users_editor_id');
// returns array like this:
array(
users_editor_id => sum,
...
)
Or this way (which I wouldn't use, since it won't be actual ORM result):
Document::groupBy('users_editor_id')
->selectRaw('*, sum(no_of_pages) as sum')
->get();
// returns collection of Document pseudo models with additional sum field
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