Nested subquery in django ORM - sql

Question

I need to transform this query to django, but I can't figure out how.
SELECT SUM(income)
FROM (
SELECT COUNT(keyword)*
CASE
WHEN country='ca' THEN 390
WHEN country='fi' THEN 290
WHEN country='it' THEN 280
WHEN country='nl' THEN 260
ELSE 250
END AS income
FROM analytics_conversions
WHERE keyword = 'online'
AND click_time BETWEEN '2022-06-01' AND '2022-06-30'
GROUP BY country) as _
Now I have this code, but it returns multiple rows. These rows should be summed and return only that one row to be used in a subquery.
keywords_conversions_params = {
'keyword': OuterRef('keyword'),
'keyword_type': OuterRef('keyword_type')
}
keywords_conversions_value = Conversions.objects.filter(
**keywords_conversions_params).order_by().values('keyword').annotate(
value=Count('pk') * Case(
When(country='ca', then=350),
When(country='fi', then=290),
When(country='it', then=280),
When(country='nl', then=260),
default=250
)).values('value')

Answer 1

I managed to fix this issue by removing grouping and simply summing the values with a condition. This is the fixed code.
keywords_conversions_params = {
'keyword': OuterRef('keyword'),
'keyword_type': OuterRef('keyword_type')
}
keywords_conversions_value = Conversions.objects.filter(
**keywords_conversions_params).values('keyword').annotate(
value=Sum(Case(
When(country='ca', then=350),
When(country='fi', then=290),
When(country='it', then=280),
When(country='nl', then=260),
default=250
))).values('value')