id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
7403	dumpdata do not play friendly with inheritance	redalastor@…	nobody	"Let say I have the following classes:


{{{
class Person(models.Model):
    first_name = models.CharField(max_length = 50)
    last_name = models.CharField(max_length = 50)

    def full_name(self):
        return ""%s %s"" % (self.first_name, self.last_name)

class Pirate(Person):
    pastafarian = models.BooleanField(default = True)
}}}

Now I create a Pirate:


{{{
>>> p = Pirate()
>>> p.first_name = ""Jack""
>>> p.last_name = ""Sparrow""
>>> p.pastafarian = False
>>> p.save()
>>> p
<Pirate: Jack Sparrow>
>>> Person.objects.all()
[<Person: Jack Sparrow>]
>>> Pirate.objects.all()
[<Pirate: Jack Sparrow>]
}}}

So far so good. Lets get to the buggy part:


{{{
$ ./manage.py dumpdata > yarrrr.json
$ ./manage.py reset pirates
$ ./manage.py loaddata yarrrr.json
$ ./manage.py shell
>>> from myproject.pirates.models import *
>>> Person.objects.all()
[<Person: Jack Sparrow>, <Person: Jack Sparrow>]
}}}

A workaround for now is to manually edit the serialized file and remove all references to the base class (Person in this case). Import will then work as expected."		closed	Core (Serialization)	dev		invalid			Unreviewed	0	0	0	0	0	0