diff options
Diffstat (limited to 'news')
| -rw-r--r-- | news/migrations/0009_utc_datetimes.py | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/news/migrations/0009_utc_datetimes.py b/news/migrations/0009_utc_datetimes.py new file mode 100644 index 0000000..6cddf78 --- /dev/null +++ b/news/migrations/0009_utc_datetimes.py @@ -0,0 +1,85 @@ +# encoding: utf-8 +import datetime +from south.db import db +from south.v2 import DataMigration +from django.db import models +from django.utils.tzinfo import LocalTimezone + +def new_date(old_date, reverse=False): + if old_date is None: + return None + tz = LocalTimezone(old_date) + offset = tz.utcoffset(old_date) + if reverse: + offset = -offset + return old_date - offset + +class Migration(DataMigration): + + def forwards(self, orm): + all_news = orm.News.objects.all().defer('content') + for news in all_news: + # prevents full object updates + orm.News.objects.filter(pk=news.pk).update( + postdate=new_date(news.postdate), + last_modified=new_date(news.last_modified)) + + def backwards(self, orm): + all_news = orm.News.objects.all().defer('content') + for news in all_news: + # prevents full object updates + orm.News.objects.filter(pk=news.pk).update( + postdate=new_date(news.postdate, True), + last_modified=new_date(news.last_modified, True)) + + 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'}) + }, + 'news.news': { + 'Meta': {'ordering': "['-postdate']", 'object_name': 'News', 'db_table': "'news'"}, + 'author': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'news_author'", 'to': "orm['auth.User']"}), + 'content': ('django.db.models.fields.TextField', [], {}), + 'guid': ('django.db.models.fields.CharField', [], {'max_length': '255'}), + 'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), + 'last_modified': ('django.db.models.fields.DateTimeField', [], {'db_index': 'True'}), + 'postdate': ('django.db.models.fields.DateTimeField', [], {'db_index': 'True'}), + 'slug': ('django.db.models.fields.SlugField', [], {'unique': 'True', 'max_length': '255', 'db_index': 'True'}), + 'title': ('django.db.models.fields.CharField', [], {'max_length': '255'}) + } + } + + complete_apps = ['news'] |