text: # -*- coding: utf-8 -*-
  import datetime
  from south.db import db
  from south.v2 import DataMigration
  from django.db import models
  
  
  class Migration(DataMigration):
  
      def forwards(self, orm):
          for file_name_null in orm.File.objects.filter(name__isnull=True):
              file_name_null.name = ""
              file_name_null.save()
              print 'Setting empty string in null name for File object %s. See Release notes for further info' % file_name_null.pk
  
      def backwards(self, orm):
          pass
          #raise RuntimeError("Cannot reverse this migration.")
  
      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'})
          },
          'filer.clipboard': {
              'Meta': {'object_name': 'Clipboard'},
              'files': ('django.db.models.fields.related.ManyToManyField', [], {'related_name': "'in_clipboards'", 'symmetrical': 'False', 'through': "orm['filer.ClipboardItem']", 'to': "orm['filer.File']"}),
              'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'user': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'filer_clipboards'", 'to': "orm['auth.User']"})
          },
          'filer.clipboarditem': {
              'Meta': {'object_name': 'ClipboardItem'},
              'clipboard': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['filer.Clipboard']"}),
              'file': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['filer.File']"}),
              'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'})
          },
          'filer.file': {
              'Meta': {'object_name': 'File'},
              '_file_size': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
              'description': ('django.db.models.fields.TextField', [], {'null': 'True', 'blank': 'True'}),
              'file': ('django.db.models.fields.files.FileField', [], {'max_length': '255', 'null': 'True', 'blank': 'True'}),
              'folder': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'all_files'", 'null': 'True', 'to': "orm['filer.Folder']"}),
              'has_all_mandatory_data': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
              'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'is_public': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
              'modified_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'}),
              'name': ('django.db.models.fields.CharField', [], {'default': "''", 'max_length': '255', 'blank': 'True'}),
              'original_filename': ('django.db.models.fields.CharField', [], {'max_length': '255', 'null': 'True', 'blank': 'True'}),
              'owner': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'owned_files'", 'null': 'True', 'to': "orm['auth.User']"}),
              'polymorphic_ctype': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'polymorphic_filer.file_set'", 'null': 'True', 'to': "orm['contenttypes.ContentType']"}),
              'sha1': ('django.db.models.fields.CharField', [], {'default': "''", 'max_length': '40', 'blank': 'True'}),
              'uploaded_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'})
          },
          'filer.folder': {
              'Meta': {'ordering': "('name',)", 'unique_together': "(('parent', 'name'),)", 'object_name': 'Folder'},
              'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
              'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'level': ('django.db.models.fields.PositiveIntegerField', [], {'db_index': 'True'}),
              'lft': ('django.db.models.fields.PositiveIntegerField', [], {'db_index': 'True'}),
              'modified_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'}),
              'name': ('django.db.models.fields.CharField', [], {'max_length': '255'}),
              'owner': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'filer_owned_folders'", 'null': 'True', 'to': "orm['auth.User']"}),
              'parent': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'children'", 'null': 'True', 'to': "orm['filer.Folder']"}),
              'rght': ('django.db.models.fields.PositiveIntegerField', [], {'db_index': 'True'}),
              'tree_id': ('django.db.models.fields.PositiveIntegerField', [], {'db_index': 'True'}),
              'uploaded_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'})
          },
          'filer.folderpermission': {
              'Meta': {'object_name': 'FolderPermission'},
              'can_add_children': ('django.db.models.fields.SmallIntegerField', [], {'default': 'None', 'null': 'True', 'blank': 'True'}),
              'can_edit': ('django.db.models.fields.SmallIntegerField', [], {'default': 'None', 'null': 'True', 'blank': 'True'}),
              'can_read': ('django.db.models.fields.SmallIntegerField', [], {'default': 'None', 'null': 'True', 'blank': 'True'}),
              'everybody': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
              'folder': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['filer.Folder']", 'null': 'True', 'blank': 'True'}),
              'group': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'filer_folder_permissions'", 'null': 'True', 'to': "orm['auth.Group']"}),
              'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'type': ('django.db.models.fields.SmallIntegerField', [], {'default': '0'}),
              'user': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'filer_folder_permissions'", 'null': 'True', 'to': "orm['auth.User']"})
          },
          'filer.image': {
              'Meta': {'object_name': 'Image', '_ormbases': ['filer.File']},
              '_height': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
              '_width': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
              'author': ('django.db.models.fields.CharField', [], {'max_length': '255', 'null': 'True', 'blank': 'True'}),
              'date_taken': ('django.db.models.fields.DateTimeField', [], {'null': 'True', 'blank': 'True'}),
              'default_alt_text': ('django.db.models.fields.CharField', [], {'max_length': '255', 'null': 'True', 'blank': 'True'}),
              'default_caption': ('django.db.models.fields.CharField', [], {'max_length': '255', 'null': 'True', 'blank': 'True'}),
              'file_ptr': ('django.db.models.fields.related.OneToOneField', [], {'to': "orm['filer.File']", 'unique': 'True', 'primary_key': 'True'}),
              'must_always_publish_author_credit': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
              'must_always_publish_copyright': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
              'subject_location': ('django.db.models.fields.CharField', [], {'default': 'None', 'max_length': '64', 'null': 'True', 'blank': 'True'})
          },
          'taggit.tag': {
              'Meta': {'object_name': 'Tag'},
              'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
              'slug': ('django.db.models.fields.SlugField', [], {'unique': 'True', 'max_length': '100'})
          },
          'taggit.taggeditem': {
              'Meta': {'object_name': 'TaggedItem'},
              'content_type': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'taggit_taggeditem_tagged_items'", 'to': "orm['contenttypes.ContentType']"}),
              'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
              'object_id': ('django.db.models.fields.IntegerField', [], {'db_index': 'True'}),
              'tag': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'taggit_taggeditem_items'", 'to': "orm['taggit.Tag']"})
          }
      }
  
      complete_apps = ['filer']