I ran into what I think might be a bug and wanted to check here before
possibly posting it.
Essentially what seems to be happening is that Django seems to return
datetime.datetime or datetime.date from DateFields in models and I
can't figure out why it returns one type at one time and another type
at another.
I have two models and the parent has a method that is suppose to
compare it's latest update date and the date of the latest child
update and return whichever date is more rescent. However when I try
to unit test the Release.all_last_update method I get the following
error:
"TypeError: can't compare datetime.datetime to datetime.date"
But all values are being pulled from a DateField. Is Django casting
it incorrectly or am I missing something somewhere?
Models are below.
class Release(models.Model):
created_on = models.DateField(auto_now=False, auto_now_add=True)
last_updated = models.DateField(auto_now=True, auto_now_add=True)
def all_last_updated(self):
d = []
d.append(self.last_updated)
d.append(Activity.objects.filter(release_fk=self).latest
().last_updated)
d.sort().reverse()
return d[0]
class Meta:
get_latest_by = 'last_updated'
ordering = ["project_fk", "internal_priority"]
class Activity(models.Model):
created_on = models.DateField(auto_now=False, auto_now_add=True)
last_updated = models.DateField(auto_now=True, auto_now_add=True)
def all_last_updated(self):
return self.last_updated
class Meta:
get_latest_by = 'created_on'
ordering = ['created_on']
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