I have two models: Person and Telephone. A person can have many
telephones but a telephone belongs to at most one person. The models
are:
class Person(models.Model):
name = models.CharField(max_length=50)
def __unicode__(self):
return self.name
class Telephone(models.Model):
phone_number = models.IntegerField()
phone_type = models.CharField(max_length=50, blank=False)
owner = models.ForeignKey(Person, blank=True, null=True)
ordering = ['+phone_number',]
def __unicode__(self):
return unicode(self.phone_number)
In admin.py I have:
class TelephoneInline(admin.TabularInline):
model = Telephone
class PersonAdmin(admin.ModelAdmin):
inlines = [TelephoneInline,]
fk_name='owner'
admin.site.register(Person, PersonAdmin)
Using PostgreSQL this allows me a single phone number for a person. I
can chnage and delete the number. However if I add more than one phone
number I cannot change or delete numbers.
Changing from PostgreSQL to MySQL this issue disappears.
There is no useful error information I can access (just the default
ValidationError). Has anyone any idea what this might be?
-- Peter
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