0003_migrate_name_to_slug.py

# -*- coding: utf-8 -*-
from django.db.models import Q
from django.template.defaultfilters import slugify

from south.v2 import DataMigration


class Migration(DataMigration):

    def forwards(self, orm):
        used = set()
        for l in orm["lists.List"].objects.filter(Q(slug=None) | Q(slug="")):
            slug = slugify(l.name)
            i = 1

            while (l.user, slug) in used:
                slug = slugify(u"%s %s" % (self.name, i))
                i += 1

            used.add((l.user, slug))

            l.slug = slug
            l.save()

    def backwards(self, orm):
        pass

    models = {
        'auth.group': {
            'Meta': {'object_name': 'Group'},
            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}),
            'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
        },
        'auth.permission': {
            'Meta': {'ordering': "('content_type__app_label', 'content_type__model', 'codename')", 'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Permission'},
            'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
            'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
            'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
        },
        'auth.user': {
            'Meta': {'object_name': 'User'},
            'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
            'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
            'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
            'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
            'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
            'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
            'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
            'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
            'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
            'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
            'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
            'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
        },
        'contenttypes.contenttype': {
            'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
            'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
            'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
        },
        'lists.list': {
            'Meta': {'unique_together': "[('user', 'name'), ('user', 'slug')]", 'object_name': 'List'},
            'created': ('model_utils.fields.AutoCreatedField', [], {'default': 'datetime.datetime.now'}),
            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
            'modified': ('model_utils.fields.AutoLastModifiedField', [], {'default': 'datetime.datetime.now'}),
            'name': ('django.db.models.fields.CharField', [], {'max_length': '50', 'db_index': 'True'}),
            'packages': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['packages.Package']", 'symmetrical': 'False'}),
            'private': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
            'slug': ('django.db.models.fields.SlugField', [], {'max_length': '50', 'null': 'True'}),
            'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']"})
        },
        'packages.package': {
            'Meta': {'object_name': 'Package'},
            'created': ('model_utils.fields.AutoCreatedField', [], {'default': 'datetime.datetime.now'}),
            'downloads_synced_on': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
            'modified': ('model_utils.fields.AutoLastModifiedField', [], {'default': 'datetime.datetime.now'}),
            'name': ('django.db.models.fields.SlugField', [], {'unique': 'True', 'max_length': '150'}),
            'normalized_name': ('django.db.models.fields.SlugField', [], {'unique': 'True', 'max_length': '150'})
        }
    }

    complete_apps = ['lists']
    symmetrical = True