Laravel Eloquent: sum with groupBy

Question

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?

Answer 1

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 

Answer 2

Document::Where('some_condition',true)    ->select([DB::raw("SUM(debit) as total_debit"), DB::raw("SUM(credit) as total_credit")])    ->groupBy('id')    ->get()