Order by total points per user_id descending - mysql

Question

select
((select
COALESCE(sum(b.points_received), 0) as badge_total_points
from
user_badges ub
join
badges b ON ub.badge_id = b.badge_id
where
ub.user_id = '$user_id') + (select
COALESCE(sum(aps.given_points), 0) as total_action_points
from
user_action_points uap
join
action_point_system aps ON uap.point_id = aps.point_id
where
uap.user_id = '$user_id')) as total_contribution_points
how do I retrieve a list getting the total points grouped by a user_id with this SQL statement? Anybody have suggestions?
EDIT:
select
ub.user_id,
COALESCE(sum(b.isGold), 0) as gold_count,
COALESCE(sum(b.isSilver), 0) as silver_count,
COALESCE(sum(b.isBronze), 0) as bronze_count
from
user_badges ub
join
badges b ON ub.badge_id = b.badge_id
group by ub.user_id
how can I add this query to the result of the first question?

Answer 1

Although there are ways to do what you want, you can build on your existing query using correlated subqueries:
select u.*,
((select COALESCE(sum(b.points_received), 0) as badge_total_points
from user_badges ub join
badges b
ON ub.badge_id = b.badge_id
where ub.user_id = u.user_id
) +
(select COALESCE(sum(aps.given_points), 0) as total_action_points
from user_action_points uap join
action_point_system aps
ON uap.point_id = aps.point_id
where uap.user_id = u.user_id
)
) as total_contribution_points
from users u
order by total_contribution_points desc;