Hello,
First of all, my model:
class Application(models.Model):
name =
models.CharField(_('name'),maxlength=200,unique=True)
class Screenshot(models.Model):
application =
models.ForeignKey(Application,edit_inline=True,num_in_admin=5)
image =
models.ImageField(_('image'),upload_to="screenshots/",height_field="height",width_field="width")
caption =
models.CharField(_('caption'),maxlength=200,core=True)
height =
models.IntegerField(_('height'),blank=True,null=True,editable=False)
width =
models.IntegerField(_('width'),blank=True,null=True,editable=False)
This works in my view:
context["app"] =
Application.objects.filter(screenshot__id__isnull=False).distinct()
These does not work (returns an empty list where it should not):
context["app"] =
Application.objects.filter(screenshot__id__isnull=True)
or
context["app"] =
Application.objects.exclude(screenshot__id__isnull=False)
Why ?
Olive.
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