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-rw-r--r--news/migrations/0009_utc_datetimes.py85
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']