inheritance - Django: app_label problem when declaring base models outside models.py -

i have abstract container class allows derived models hold content blocks such images, text, etc., separate models. db tidiness, want tables models labeled content_block_image, content_block_text, etc.

but when specify app_label = 'content_block' in meta class of content model, getting error during syncdb:

content.event: 'content' has m2m relation model content, has either not been installed or abstract.

i declaring following base classes follows:

# base.py class content(models.model):     tags = models.textfield(_('tags'), blank=true)     user = models.foreignkey(user)     content_type = models.foreignkey(contenttype,                                       related_name='%(class)s_content_set')      container_type = models.foreignkey(contenttype)     container_id = models.positiveintegerfield()     container = generic.genericforeignkey('container_type', 'container_id')      class meta:         app_label = 'content_block'  class container(models.model):     content_type = models.foreignkey(contenttype,                                       related_name='%(class)s_container_set')     content = generic.genericrelation('content',                                        content_type_field='container_type',                                        object_id_field='container_id')     class meta:         abstract = true 

then, in models declaring models call container such as:

# models.py class event(container):     title = models.charfield(max_length=100)     start = models.datetimefield()     end = models.datetimefield() 

if remove app_label syncdb runs without problem. seems app_label not label.

any ideas on how going app_label content base class set?

from the doc

if model exists outside of standard models.py (for instance, if app’s models in submodules of myapp.models), model must define app part of:

app_label = 'myapp' 

content_block application exists ? if not, i'm not shure work.

it seems want forcing table names. it's possible property

the name of database table use model:

db_table = 'music_album'