Переносил проект с Django 1.6 на Django 1.8. Пытался выполнить команду makemigrations. Вылезла следующая ошибка.
Traceback (most recent call last):
File "/home/camaro/programming/imedrese/master/manage.py", line 14, in <module>
execute_from_command_line(sys.argv)
File "/home/camaro/programming/imedrese/master/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 338, in execute_from_command_line
utility.execute()
File "/home/camaro/programming/imedrese/master/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 330, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/camaro/programming/imedrese/master/local/lib/python2.7/site-packages/django/core/management/base.py", line 390, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/camaro/programming/imedrese/master/local/lib/python2.7/site-packages/django/core/management/base.py", line 441, in execute
output = self.handle(*args, **options)
File "/home/camaro/programming/imedrese/master/local/lib/python2.7/site-packages/django/core/management/commands/makemigrations.py", line 143, in handle
self.write_migration_files(changes)
File "/home/camaro/programming/imedrese/master/local/lib/python2.7/site-packages/django/core/management/commands/makemigrations.py", line 171, in write_migration_files
migration_string = writer.as_string()
File "/home/camaro/programming/imedrese/master/local/lib/python2.7/site-packages/django/db/migrations/writer.py", line 146, in as_string
operation_string, operation_imports = OperationWriter(operation).serialize()
File "/home/camaro/programming/imedrese/master/local/lib/python2.7/site-packages/django/db/migrations/writer.py", line 104, in serialize
_write(arg_name, arg_value)
File "/home/camaro/programming/imedrese/master/local/lib/python2.7/site-packages/django/db/migrations/writer.py", line 68, in _write
arg_string, arg_imports = MigrationWriter.serialize(item)
File "/home/camaro/programming/imedrese/master/local/lib/python2.7/site-packages/django/db/migrations/writer.py", line 283, in serialize
item_string, item_imports = cls.serialize(item)
File "/home/camaro/programming/imedrese/master/local/lib/python2.7/site-packages/django/db/migrations/writer.py", line 354, in serialize
return cls.serialize_deconstructed(path, args, kwargs)
File "/home/camaro/programming/imedrese/master/local/lib/python2.7/site-packages/django/db/migrations/writer.py", line 248, in serialize_deconstructed
arg_string, arg_imports = cls.serialize(arg)
File "/home/camaro/programming/imedrese/master/local/lib/python2.7/site-packages/django/db/migrations/writer.py", line 438, in serialize
"topics/migrations/#migration-serializing" % (value, get_docs_version())
ValueError: Cannot serialize: <bound method AboutManager.default of <articles.models.AboutManager object at 0x9c687ac>>
модельки, на которые ругается следующие:
class AboutManager(models.Manager):
def default(self):
default = self.all()[:1]
if len(default) == 0:
return None
else:
return default[0]
class About(models.Model):
name = models.CharField(max_length=50, verbose_name=_("name"))
url = models.SlugField(blank=True, verbose_name=_("url"))
is_live = models.BooleanField(default=True, blank=True, verbose_name=_("is_live"))
meta_description = models.TextField(blank=True, verbose_name=_("Meta description"))
meta_keywords = models.TextField(blank=True, verbose_name=_("Meta keywords"))
title = models.CharField(blank=True, max_length=50, verbose_name=_("Page name"))
welcome_text = models.TextField(blank=True, verbose_name=_("Welcome text"))
objects = AboutManager()
def random_url(self):
url = urandom(7).encode('hex')
while About.objects.filter(url=url).exists():
url = urandom(7).encode('hex')
return urlcd
def make_url(self):
if not self.url:
url = translit_url(self.name)
if About.objects.filter(url=url).exists():
url = About.random_url
return url
return self.url
class Meta:
verbose_name = _('Article about')
verbose_name_plural = _('Articles about')
def __unicode__(self):
if self.is_live:
return u'%s (live)' % self.name
else:
return self.name
подскажите, пожалуйста, чем ему менеджер не понравился?
Средний