Hi, i have this model
class Linkmap(models.Model): vpathid = models.IntegerField(db_column='VPathID') # Field name made lowercase. interfacein = models.CharField(max_length=20L, db_column='InterfaceIn') # Field name made lowercase. #Every Link belongs to a LinkMap #links = models.ForeignKey(Links) interfaceout = models.CharField(max_length=20L, db_column='InterfaceOut') # Field name made lowercase. #Every Vpath composes a LinkMap vpaths = models.ForeignKey(Vpaths) hopcounter = models.BigIntegerField(null=True, db_column='HopCounter', blank=True) # Field name made lowercase. def __unicode__(self): return 'VPathID %s , HopCounter %s' % (self.vpathid,self.hopcounter) class Meta: db_table = 'LinkMap' when i uncommented links = models.ForeignKey(Links) and tried to migrate i got this exeption: root@Roronoa:/home/roronoa/Desktop/webinterface/mysite# ./manage.py migrate myapp Running migrations for myapp: - Migrating forwards to 0048_auto__add_field_linkmap_links. > myapp:0048_auto__add_field_linkmap_links FailedDryRun: ! Error found during dry run of '0048_auto__add_field_linkmap_links'! Aborting. Traceback (most recent call last): File "/usr/local/lib/python2.7/dist-packages/South-0.7.6-py2.7.egg/south/migration/migrators.py", line 175, in _run_migration migration_function() File "/usr/local/lib/python2.7/dist-packages/South-0.7.6-py2.7.egg/south/migration/migrators.py", line 57, in <lambda> return (lambda: direction(orm)) File "/home/roronoa/Desktop/webinterface/mysite/myapp/migrations/0048_auto__add_field_linkmap_links.py", line 14, in forwards keep_default=False) File "/usr/local/lib/python2.7/dist-packages/South-0.7.6-py2.7.egg/south/db/generic.py", line 44, in _cache_clear return func(self, table, *args, **opts) File "/usr/local/lib/python2.7/dist-packages/South-0.7.6-py2.7.egg/south/db/generic.py", line 402, in add_column sql = self.column_sql(table_name, name, field) File "/usr/local/lib/python2.7/dist-packages/South-0.7.6-py2.7.egg/south/db/generic.py", line 688, in column_sql default = field.get_db_prep_save(default, connection=self._get_connection()) File "/usr/local/lib/python2.7/dist-packages/django/db/models/fields/related.py", line 1047, in get_db_prep_save connection=connection) File "/usr/local/lib/python2.7/dist-packages/django/db/models/fields/__init__.py", line 304, in get_db_prep_save prepared=False) File "/usr/local/lib/python2.7/dist-packages/django/db/models/fields/__init__.py", line 549, in get_db_prep_value value = connection.ops.validate_autopk_value(value) File "/usr/local/lib/python2.7/dist-packages/django/db/backends/mysql/base.py", line 288, in validate_autopk_value raise ValueError('The database backend does not accept 0 as a ' ValueError: The database backend does not accept 0 as a value for AutoField. I can't do nothing as many tries i did!I not that experienced in South and Django,just started to use them!Any help would be appriciated! -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-users+unsubscr...@googlegroups.com. To post to this group, send email to django-users@googlegroups.com. Visit this group at http://groups.google.com/group/django-users?hl=en. For more options, visit https://groups.google.com/groups/opt_out.