Merge branch 'zuixin' into 'master'

Zuixin

See merge request alpha/physical!387

trans2es/models/topic.py

@@ -344,6 +344,7 @@ class PictorialTopic(models.Model):
     topic_id = models.BigIntegerField(verbose_name=u'帖子ID')
     is_online = models.BooleanField(verbose_name=u"是否有效", default=True)
     is_deleted = models.BooleanField(verbose_name=u'是否删除')
+    create_time = models.DateTimeField(verbose_name=u'创建时间', default=datetime.datetime.fromtimestamp(0))
 
 
 class TopicExtra(models.Model):