$users = User::select('users*', 'analytics.*', DB::raw('SUM(analytics.revenue) As revenue'))
->leftJoin('analytics', 'analytics.user_id', '=', 'users.id')
->where('analytics.date', Carbon::today()->toDateString())
->get();
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,
...
)