#9475: add(), create(), etc. should be supported by intermedite ManyToMany model
with extra attributes if extra fields can be calculated
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Reporter: [EMAIL PROTECTED] | Owner: nobody
Status: new | Milestone:
Component: Database layer (models, ORM) | Version: 1.0
Keywords: | Stage: Unreviewed
Has_patch: 0 |
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Intermedite ManyToMany model with extra attributes should support add(),
create(), etc. when the extra fields have default values or are
calculated.
For example, for the following models:
{{{
class Person(models.Model):
name = models.CharField(max_length=128)
class Group(models.Model):
name = models.CharField(max_length=128)
members = models.ManyToManyField(Person, through='Membership')
class Membership(models.Model):
person = models.ForeignKey(Person)
group = models.ForeignKey(Group)
added = models.DateField(auto_now_add=True)
}}}
This should be possible:
{{{
Group.members.add(Person.objects.create(name='Joe'))
}}}
Similarly, if the attributes are calculated in the custom save() method or
if they have a default value, those methods should be supported.
Maybe, simply removing the extra checks will do. So is it is the values
are not sufficient, a db error will be raised anyway.
--
Ticket URL: <http://code.djangoproject.com/ticket/9475>
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