Python django.db.utils.DatabaseError

我正在建立一个django模型来存储区域，如美国、德国等。我使区域名称在表中是唯一的。我有一个从列表填充数据库的脚本，如果存在重复的区域名IntegrityError，则会按预期抛出，但随后会发生另一个错误，我无法从错误消息中看出原因。有什么想法吗？谢谢

django.db.utils.DatabaseError: current transaction is aborted, commands ignored until end of transaction block

型号：

class Region(models.Model):
    name = models.CharField(max_length=512, unique=True)

    def __unicode__(self):
        return self.name

填充代码：

    try:
        Region(name=server['locale']).save()
        print 'Added region: %(locale)s' % server
    except IntegrityError:
        pass

我已经确认IntegrityError正在发生，但是我得到了一个我不希望出现的错误：

  File "/home/daedalus/webapps/wowstatus/lib/python2.6/django/db/models/base.py", line 456, in save
    self.save_base(using=using, force_insert=force_insert, force_update=force_update)
  File "/home/daedalus/webapps/wowstatus/lib/python2.6/django/db/models/base.py", line 549, in save_base
    result = manager._insert(values, return_id=update_pk, using=using)
  File "/home/daedalus/webapps/wowstatus/lib/python2.6/django/db/models/manager.py", line 195, in _insert
    return insert_query(self.model, values, **kwargs)
  File "/home/daedalus/webapps/wowstatus/lib/python2.6/django/db/models/query.py", line 1518, in insert_query
    return query.get_compiler(using=using).execute_sql(return_id)
  File "/home/daedalus/webapps/wowstatus/lib/python2.6/django/db/models/sql/compiler.py", line 788, in execute_sql
    cursor = super(SQLInsertCompiler, self).execute_sql(None)
  File "/home/daedalus/webapps/wowstatus/lib/python2.6/django/db/models/sql/compiler.py", line 732, in execute_sql
    cursor.execute(sql, params)
  File "/home/daedalus/webapps/wowstatus/lib/python2.6/django/db/backends/util.py", line 15, in execute
    return self.cursor.execute(sql, params)
  File "/home/daedalus/webapps/wowstatus/lib/python2.6/django/db/backends/postgresql_psycopg2/base.py", line 44, in execute
    return self.cursor.execute(query, args)
django.db.utils.DatabaseError: current transaction is aborted, commands ignored until end of transaction block

---

如果出现故障，应重置数据库状态 例如：

from django.db import transaction

@transaction.commit_manually
def Populate():
    try:
        Region(name=server['locale']).save()
        print 'Added region: %(locale)s' % server
    except IntegrityError:
        transaction.rollback()
    else:
        transaction.commit()

---

从django shell访问数据库时，有时会出现此错误。我通过关闭连接来修复它：

from django.db import connection
connection.close()
cur = connection.cursor()
sql = 'select distinct category from uploads_document'
cur.execute(sql)

---

在我犯了类似“选择编辑…”的错误后，它帮助我修复了一个问题。只是一个小技巧：我必须在呈现模板后提交/回滚事务。