Hi,
I have the following many2many relationship between 2 models:
class RaceDay(models.Model):
date = models.DateField()
published = models.BooleanField(default=False)
class Series(models.Model):
published = models.BooleanField(default=False)
year = models.PositiveSmallIntegerField(default=2015)
racedays = models.ManyToManyField('RaceDay')
I can use the following annotation to get the Series ordered by the latest
RaceDay in each series.
series_ordered_by_latest_raceday = Series.objects \
.annotate(latest_raceday=Max('racedays__date')) \
.filter(year=this_year, published=True) \
.order_by('latest_raceday')
The filter here applies to the fields in the Series model.
How would I limit the aggregation to members of the many2many relation that
have RaceDay.published=True?
Thanks,
Richard Brockie
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