Try not to use _ (underscore) character as prefix or postfix to any user
defined variable or db column. Its not recommended in django.
On Tue 14 Aug, 2018, 1:52 AM Mikkel Kromann, <mik...@aabenhuskromann.dk>
wrote:
> I'm trying to sum the field "ownProduction", grouping it by the foreign
> key "market" (using the market's human readable name, __name from the
> Market table) and the week number (which is built-in function __year of the
> date field "dateContract").
> However, when I try to read the results of the query in the last line in
> the code example below., I get the error:
>
> "'dict' object has no attribute 'ownProduction'"
>
> So "ownProduction" is to my surprise not a field in the query.
> What am I doing wrong?
>
> contract_query = (Project.objects.all()
> .filter(department=department_id)
> .filter(datePipeline__year=year)
> .filter(stage="WON")
> .annotate(week=ExtractWeek('dateContract'))
> .values('week','market__name')
> .annotate(Sum('ownProduction'))
> )
> for contract_row in contract_query:
> contract_sum = contract_row.ownProduction
>
> It doesn't change anything using
> .annotate(ownProduction = Sum('ownProduction'
> ))
>
>
>
> cheers + thanks, Mikkel
>
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