Błąd Django South: AttributeError: Obiekt "DateTimeField" nie ma atrybutu "model" "

Question

Próbuję przenieść tabelę, dodając do niej dwie kolumny. A startDate i endDate. Korzystanie z Django w wersji south powinno być prostą migracją. Mam wiele innych stołów z datami w nich również, ale z jakiegoś powodu dostaję i wydaję tutaj i nie widzę tego.

Ślad stosu jest stwierdzając:

AttributeError: 'DateTimeField' object has no attribute 'model' 

Oto model ja migracji:

# Keep track of who has applied for a Job 
class JobApply(models.Model): 
    job = models.ForeignKey(Jobs) 
    user = models.ForeignKey(User) 
    # Keep track of the Developer accepted to do the work 
    accepted_dev = models.IntegerField(null=False, blank=False, default=0) 
    # If 1 (True) the User has applied to this job 
    isApplied = models.BooleanField(default=0) 
    startDate = models.DateTimeField() 
    endDate = models.DateTimeField() 

Wszystkie pola z wyjątkiem startDate i endDate już istnieje w DB. Aby nadać tym kolumnom wartości domyślne, używam datetime.date.now() przez terminal, aby wszystko było kwadratowe. Problem polega na tym, że South schemamigration działa dobrze, ale faktyczne barfy migracji.

Jeśli ktoś zobaczy ten błąd, moje włosy to docenią. : P

EDIT: Łącznie StackTrace:

Running migrations for insource: 
- Migrating forwards to 0004_auto__add_field_jobapply_startDate__add_field_jobapply_endDate. 
> insource:0004_auto__add_field_jobapply_startDate__add_field_jobapply_endDate 
Error in migration: insource:0004_auto__add_field_jobapply_startDate__add_field_jobapply_endDate 
Traceback (most recent call last): 
    File "./manage.py", line 10, in <module> 
    execute_from_command_line(sys.argv) 
    File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 399, in execute_from_command_line 
    utility.execute() 
    File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 392, in execute 
    self.fetch_command(subcommand).run_from_argv(self.argv) 
    File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 242, in run_from_argv 
    self.execute(*args, **options.__dict__) 
    File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 285, in execute 
    output = self.handle(*args, **options) 
    File "/usr/local/lib/python2.7/dist-packages/south/management/commands/migrate.py", line 111, in handle 
    ignore_ghosts = ignore_ghosts, 
    File "/usr/local/lib/python2.7/dist-packages/south/migration/__init__.py", line 220, in migrate_app 
    success = migrator.migrate_many(target, workplan, database) 
    File "/usr/local/lib/python2.7/dist-packages/south/migration/migrators.py", line 229, in migrate_many 
    result = migrator.__class__.migrate_many(migrator, target, migrations, database) 
    File "/usr/local/lib/python2.7/dist-packages/south/migration/migrators.py", line 304, in migrate_many 
    result = self.migrate(migration, database) 
    File "/usr/local/lib/python2.7/dist-packages/south/migration/migrators.py", line 129, in migrate 
    result = self.run(migration, database) 
    File "/usr/local/lib/python2.7/dist-packages/south/migration/migrators.py", line 113, in run 
    return self.run_migration(migration, database) 
    File "/usr/local/lib/python2.7/dist-packages/south/migration/migrators.py", line 83, in run_migration 
    migration_function() 
    File "/usr/local/lib/python2.7/dist-packages/south/migration/migrators.py", line 59, in <lambda> 
    return (lambda: direction(orm)) 
    File "/home/jared/Desktop/School/insource/insource/migrations/0004_auto__add_field_jobapply_startDate__add_field_jobapply_endDate.py", line 14, in forwards 
    keep_default=False) 
    File "/usr/local/lib/python2.7/dist-packages/south/db/generic.py", line 47, in _cache_clear 
    return func(self, table, *args, **opts) 
    File "/usr/local/lib/python2.7/dist-packages/south/db/generic.py", line 411, in add_column 
    sql = self.column_sql(table_name, name, field) 
    File "/usr/local/lib/python2.7/dist-packages/south/db/generic.py", line 706, 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/__init__.py", line 350, in get_db_prep_save 
    prepared=False) 
    File "/usr/local/lib/python2.7/dist-packages/django/db/models/fields/__init__.py", line 911, in get_db_prep_value 
    value = self.get_prep_value(value) 
    File "/usr/local/lib/python2.7/dist-packages/django/db/models/fields/__init__.py", line 902, in get_prep_value 
    (self.model.__name__, self.name, value), 
AttributeError: 'DateTimeField' object has no attribute 'model' 

Kod Migracji (dodanie odpowiedniego kodu, ponieważ jest trochę za długa):

def forwards(self, orm): 
    # Adding field 'JobApply.startDate' 
    db.add_column(u'insource_jobapply', 'startDate', 
        self.gf('django.db.models.fields.DateTimeField')(default=datetime.datetime(2013, 12, 7, 0, 0)), 
        keep_default=False) 

    # Adding field 'JobApply.endDate' 
    db.add_column(u'insource_jobapply', 'endDate', 
        self.gf('django.db.models.fields.DateTimeField')(default=datetime.datetime(2013, 12, 7, 0, 0)), 
        keep_default=False) 


def backwards(self, orm): 
    # Deleting field 'JobApply.startDate' 
    db.delete_column(u'insource_jobapply', 'startDate') 

    # Deleting field 'JobApply.endDate' 
    db.delete_column(u'insource_jobapply', 'endDate') 


u'insource.jobapply': { 
    'Meta': {'object_name': 'JobApply'}, 
    'accepted_dev': ('django.db.models.fields.IntegerField', [], {'default': '0'}), 
    'endDate': ('django.db.models.fields.DateTimeField', [], {}), 
    u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), 
    'isApplied': ('django.db.models.fields.BooleanField', [], {'default': 'False'}), 
    'job': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['insource.Jobs']"}), 
    'startDate': ('django.db.models.fields.DateTimeField', [], {}), 
    'user': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['auth.User']"}) 
}, 

Answer 1

musiałem zaktualizować wersję south dla django do wersji 0.8.4.

Gdyby uruchomić następujące polecenie:

sudo easy_install -U South 

Lub, jeśli używasz pip:

pip install South --upgrade 

Po tym, moja migracja działało zgodnie z oczekiwaniami.