Моя работа запросов в MySQL, но не работает с Laravel красноречивым

Question

Laravel Запрос:

$studentsFee = \FeeModal::query(); 
$studentsFee->groupBy('main_campus_id', 'session_id', 'class_info_id', 'section_id', 'stage_id') 
       ->selectRaw('count(student_id) as student_strength,SUM(IF(paid_amount>0,1,0)) as submit_students,SUM(IF(paid_amount=0,1,0)) as not_submit_students, sum(paid_amount) as submit_amount') 
       ->with('sessionMode', 'section', 'classInfo', 'stage')->get(); 

dd(count($studentsFee). ' Records'); 

Результат: 0 записей

Сформирован запрос по ->toSql();

string(281) "select count(student_id) as student_strength,SUM(IF(paid_amount>0,1,0)) as submit_students,SUM(IF(paid_amount=0,1,0)) as not_submit_students, sum(paid_amount) as submit_amount from `fee` group by `main_campus_id`, `session_id`, `class_info_id`, `section_id`, `stage_id`" 

и когда я выполнить этот запрос в mysql он возвращает 18 строк;

Answer 1

Я думаю, что вы забыли присвоить результат запроса в переменную:

$studentsQuery = \FeeModal::query(); 
$studentsFee = $studentsQuery->groupBy('main_campus_id', 'session_id', 'class_info_id', 'section_id', 'stage_id') 
       ->selectRaw('count(student_id) as student_strength,SUM(IF(paid_amount>0,1,0)) as submit_students,SUM(IF(paid_amount=0,1,0)) as not_submit_students, sum(paid_amount) as submit_amount') 
       ->with('sessionMode', 'section', 'classInfo', 'stage')->get(); 

dd(count($studentsFee). ' Records');