Here is my model:
class UserSIMS(models.Model):
TATA_USAHA = 0
DOSEN = 1
MAHASISWA = 2
TYPE_CHOICES = ((TATA_USAHA, 'Tata Usaha'), (DOSEN, 'Dosen'),
(MAHASISWA, 'Mahasiswa'))
user = models.OneToOneField(User)
type = models.IntegerField(choices=TYPE_CHOICES) # 0 = TU 1 = dosen 2 =
mahasiswa
class Group(models.Model):
name = models.CharField(max_length=100)
lecturer = models.ForeignKey(User, null=True, blank=True,
limit_choices_to={'usersims': UserSIMS.DOSEN})
company = models.ForeignKey(Company, null=True, blank=True)
tor = models.FileField(upload_to='tor', null=True, blank=True)
logact = models.FileField(upload_to='logact', null=True, blank=True)
document = models.FileField(upload_to='document', null=True, blank=True)
created_at = models.DateTimeField(null=True, blank=True)
updated_at = models.DateTimeField(null=True, blank=True)
def save(self, *args, **kwargs):
if not self.id:
self.created_at = datetime.datetime.today()
self.updated_at = datetime.datetime.today()
super(Group, self).save(*args, **kwargs)
And this is my group admin model
class GroupAdmin(admin.ModelAdmin):
list_display = ("name", "lecturer", "company")
def formfield_for_foreignkey(self, db_field, request, **kwargs):
if db_field.name == "lecturer":
kwargs["queryset"] =
User.objects.filter(usersims__type=UserSIMS.DOSEN)
return super(GroupAdmin, self).formfield_for_foreignkey(db_field,
request, **kwargs)
admin.site.register(Group, GroupAdmin)
When i tried to update the group or add a new group, there are error like
this "Model user with pk 1L does not exist".
<https://lh5.googleusercontent.com/-1IRop-cOijs/UQXzBtG1AqI/AAAAAAAABOc/wg5_60cZE-8/s1600/ScreenClip+%5B2%5D.png>
What should I do? Thanks in advance. :D
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