How can I integrate a MySQL subquery - mysql

Question

I have a MySQL subquery that I need to incorporate into my main query but i'm not sure how. My main query is shown below. I want to run that and as part of the same query run the subquery and get the result from that (which happens to be a sum) and then compare the result of the subquery in the main MySQL statement.
Main query
select * from employees_timesheet where
(sign_off_1 = 'Director' or sign_off_2 = 'Director' or sign_off_3 = 'Director')
and
(case when sign_off_1 <> 'Director' and sign_off_1_status = 'Compete'
then 1
else 0
end
+ case when sign_off_2 <> 'Director' and sign_off_2_status = 'Compete'
then 1
else 0
end
+ case when sign_off_3 <> 'Director' and sign_off_3_status = 'Compete'
then 1
else 0
end) = {{{$sign_offs_required}}}
Sub query
select
SUM(
case when employees_timesheet.sign_off_1 <> 'Director'
then 1
else 0
end
+ case when employees_timesheet.sign_off_2 <> 'Director'
then 1
else 0
end
+ case when employees_timesheet.sign_off_3 <> 'Director'
then 1
else 0
end
) as sign_offs_required
from employees_timesheet
Any help is mch appreciated.

Answer 1

I managed to get it to work using the following query:
select et.* from employees_timesheet et where
(et.sign_off_1 = 'Director' or et.sign_off_2 = 'Director' or et.sign_off_3 = 'Director')
and
(case when et.sign_off_1 <> 'Director' and et.sign_off_1_status = 'Approved'
then 1
else 0
end
+ case when et.sign_off_2 <> 'Director' and et.sign_off_2_status = 'Approved'
then 1
else 0
end
+ case when et.sign_off_3 <> 'Director' and et.sign_off_3_status = 'Approved'
then 1
else 0
end) =
(case when et.sign_off_1 <> 'Director'
then 1
else 0
end
+ case when et.sign_off_2 <> 'Director'
then 1
else 0
end
+ case when et.sign_off_3 <> 'Director'
then 1
else 0
end
)
group by et.id