Problems adding field type SlugField (Django 1.6.3)

I want to share this case with you:

I have a model Albums

, Artists

andTracks

• One Artist
  
  can have many Albums
  
  
• One Album
  
  can have many Tracks
  
  
• Many Tracks
  
  are inside One Album
  
  (maybe ManyToMany too ..)

In the model, Albums

I want to add a type field SlugField

. This is the following:

from django.db import models
from artists.models import Artists

    class Album(models.Model):
        title = models.CharField(max_length=255)
        cover = models.ImageField(upload_to='albums') 
        slug = models.SlugField(max_length=100)
        artist = models.ForeignKey(Artists)

        def __unicode__(self):
            return self.title

      

        
        
        
      

    

I am executing migratios from the south:

(myvenv)➜  myvenv  ./manage.py syncdb

Syncing...
Creating tables ...
Installing custom SQL ...
Installing indexes ...
Installed 0 object(s) from 0 fixture(s)

Synced:
> django.contrib.admin
> django.contrib.auth
> django.contrib.contenttypes
> django.contrib.sessions
> django.contrib.messages
> django.contrib.staticfiles
> south
> albums

Not synced (use migrations):
- django_extensions
- djcelery
- tracks
- artists
- userprofiles
(use ./manage.py migrate to migrate these)

(myenv)➜  myenv  ./manage.py convert_to_south albums

Creating migrations directory at '/home/bgarcial/workspace/myenv/sfotipy/albums/migrations'...
Creating __init__.py in '/home/bgarcial/workspace/myenv/sfotipy/albums/migrations'...
+ Added model albums.Album
Created 0001_initial.py. You can now apply this migration with: ./manage.py migrate albums
- Soft matched migration 0001 to 0001_initial.
Running migrations for albums:
- Nothing to migrate.
- Loading initial data for albums.
Installed 0 object(s) from 0 fixture(s)

App 'albums' converted. Note that South assumed the application models matched the   database
(i.e. you haven't changed it since last syncdb); if you have, you should delete  the  albums/migrations directory, revert models.py so it matches the database, and try again.

(myenv)➜  myenv  ./manage.py migrate albums         

Running migrations for albums:
- Nothing to migrate.
- Loading initial data for albums.
Installed 0 object(s) from 0 fixture(s) 

      

        
        
        
      

    

If I join the team. /manage.py sqlall, the album model already appears with slug field in the database

(Sfoti.py)➜  sfotipy  ./manage.py sqlall albums
BEGIN;
CREATE TABLE "albums_album" (
    "id" integer NOT NULL PRIMARY KEY,
    "title" varchar(255) NOT NULL,
    "cover" varchar(100) NOT NULL,
    "slug" varchar(100) NOT NULL,
    "artist_id" integer NOT NULL REFERENCES "artists_artists" ("id")
);
CREATE INDEX "albums_album_f52cfca0" ON "albums_album" ("slug");
CREATE INDEX "albums_album_7904f807" ON "albums_album" ("artist_id");
COMMIT; 

      

        
        
        
      

    

But, when I go to the database, directly to the database structure that Django brings me, I see that the merge field is inefficient ... It can detail them in this url https://cldup.com/-F9SQ2D3W8.jpeg

To test if this pool is working, I create url "albums" that point to the class view AlbumListView

from django.conf.urls import patterns, url
from artists.views import AlbumListView

urlpatterns = patterns('',
    url(r'^albums/$', AlbumListView.as_view(), name='album_list'),
    url(r'^albums/(?P<artist>[\w\-]+)/$', AlbumListView.as_view(), name='album_list'),
)

      

        
        
        
      

    

The class-based view is AlbumListView

as follows: Here I define a set of queries to restore artist albums , and the kwargs variable is the way to accept

class AlbumListView(ListView):
    model = Album
    template_name = 'album_list.html'

    def get_queryset(self):
        if self.kwargs.get('artist'):
            queryset = self.model.objects.filter(artist__slug=self.kwargs['artist'])
        else:
            queryset = super(AlbumListView, self).get_queryset()
        return queryset

      

        
        
        
      

    

When I go to view / albums in my browser I see this message:

no such column: albums_album.slug

      

        
        
        
      

    

This is an image of the error in my browser, check out this url:

What could be my problem? Why is migration not working? Thanks for your orientation :)