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
10992	Unable to re-save inlines with custom char primary key	marcob	Zain Memon	"Define a simple models.py like this one:

{{{
from django.db import models

class Master(models.Model):
    codice = models.CharField(
            primary_key=True,
            max_length=30,
            )

class Detail(models.Model):
    codice = models.CharField(
            primary_key=True,
            max_length=30,
            )
    fk = models.ForeignKey(Master)
}}}

And an admin.py like this one:

{{{
from django.contrib import admin
from models import Master, Detail

class DetailInline(admin.TabularInline):
    model = Detail

class MasterAdmin(admin.ModelAdmin):
    inlines = [DetailInline,]

admin.site.register(Master, MasterAdmin)
}}}

Create and save a Master record with a Detail inline record.
Reopen the Master record, try to save it again.
Bang!

{{{
AttributeError at /admin/pluto/master/test/
'unicode' object has no attribute 'pk'
Exception Location: 	C:\work\esempio\lib\django\forms\models.py in save_existing_objects, line 521
}}}

I fixed it changing line 521:
{{{
            try:
                pk_value = form.fields[pk_name].clean(raw_pk_value).pk
            except AttributeError:
                pk_value = form.fields[pk_name].clean(raw_pk_value)
}}}
"		closed	contrib.admin	dev		fixed	inline custom primary key		Accepted	1	0	0	0	0	0