DT
Size: a a a
DT
p
С
a = PortfolioWork.objects.all().annotate(mycolumn=Value(len(F('tags').all()) - len(portfolio.tags.all()), output_field=models.IntegerField()))
С
PB
С
PB
С
a = PortfolioWork.objects.all().annotate(mycolumn=Value(models.Count('tags') - len(portfolio.tags.all()), output_field=models.IntegerField()))
PB
С
С
a = PortfolioWork.objects.all().annotate(
mycolumn=models.Count('tags')
).annotate(
mc2=Value(F('mycolumn') - 10, output_field=models.IntegerField())
)
PB
.annotate(
afield=Count(ololo),
bfield=Count(ololo2)
).annotate(
cfield=F('afield')-F('bfield'),
)
PB
a = PortfolioWork.objects.all().annotate(
mycolumn=models.Count('tags')
).annotate(
mc2=Value(F('mycolumn') - 10, output_field=models.IntegerField())
)
PB
С
a = PortfolioWork.objects.all().annotate(
mycolumn=models.Count('tags'),
mycol2=Value(0, models.IntegerField())
).annotate(
mc2=F('mycolumn')-F('mycol2')
)
PB
PB
С
EC
J