Django模型在错误列中返回值

这太奇怪了

我创建了django模型的一个实例，并将其保存到数据库中，但是当我再次调用它时，值出现在错误的列中。我试着将代码转移到另一台机器上，认为我可能有一些库的错误配置，但也失败了。我做了一些广泛的谷歌搜索，但没有发现任何类似的问题，我的

以下是模型定义：（定义了

\uuuuu init\uuuu

，如果需要的话）

以下是失败的一个例子：

% python manage.py shell
Python 2.7.3 (default, Aug  4 2012, 18:36:39) 
[GCC 4.2.1 20070831 patched [FreeBSD]] on freebsd9
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>> from buffer.models import Buffer
>>> b = Buffer('schwab')
>>> b.b_tdate = '2008-11-03'
>>> b.b_bdate = '2009-01-20'
>>> b.b_bamnt = 3.1415
>>> b.b_descript = 'easy as pi'
>>> b.b_kind = 'POS'
>>> b.b_account = 'groceries'
>>> b.save()
(0.002) INSERT INTO "buffer_buffer" ("b_bname", "b_tdate", "b_bdate", "b_bamnt", "b_descript", "b_kind", "b_account") VALUES (schwab, 2008-11-03, 2009-01-20, 3.1415, easy as pi, POS, groceries); args=['schwab', u'2008-11-03', u'2009-01-20', 3.1415, 'easy as pi', 'POS', 'groceries']
(0.002) INSERT INTO "buffer_buffer" ("b_bname", "b_tdate", "b_bdate", "b_bamnt", "b_descript", "b_kind", "b_account") VALUES (schwab, 2008-11-03, 2009-01-20, 3.1415, easy as pi, POS, groceries); args=['schwab', u'2008-11-03', u'2009-01-20', 3.1415, 'easy as pi', 'POS', 'groceries']
>>> b.pk                  
1
>>> c = Buffer.objects.get(pk=1)
(0.000) SELECT "buffer_buffer"."id", "buffer_buffer"."b_bname", "buffer_buffer"."b_tdate", "buffer_buffer"."b_bdate", "buffer_buffer"."b_bamnt", "buffer_buffer"."b_descript", "buffer_buffer"."b_kind", "buffer_buffer"."b_account" FROM "buffer_buffer" WHERE "buffer_buffer"."id" = 1 ; args=(1,)
(0.000) SELECT "buffer_buffer"."id", "buffer_buffer"."b_bname", "buffer_buffer"."b_tdate", "buffer_buffer"."b_bdate", "buffer_buffer"."b_bamnt", "buffer_buffer"."b_descript", "buffer_buffer"."b_kind", "buffer_buffer"."b_account" FROM "buffer_buffer" WHERE "buffer_buffer"."id" = 1 ; args=(1,)
>>> c.b_bname
1
>>> c.b_tdate
datetime.date(2009, 1, 20)
>>> c.b_bdate
3.1415
>>> c.b_bamnt
u'easy as pi'
>>> c.b_kind
u'groceries'
>>> c.b_account
''
>>> 
% sqlite3 register 
SQLite version 3.7.13 2012-06-11 02:05:22
Enter ".help" for instructions
Enter SQL statements terminated with a ";"
sqlite> select count(id) from buffer_buffer;
1
sqlite> select b_bamnt from buffer_buffer;
3.1415

如您所见，数据库是正确的，但检索到的对象是错误的。我哪里搞砸了？我一定是在什么地方有虫。我已经找了一天多了

---

环境：Python2.7、Django 1.4、sqlite 3.7作为后端，FreeBSD 9.0

不要更改模型的

\uuuuuu init\uuuu

方法的类型签名以获取

名称

参数。它不仅在shell中创建实例时调用，而且在初始化实例时调用，包括从db获取实例时

当您可以使用如下命名参数时，不清楚为什么需要重写

\uuuu init\uuuu

方法：

b=缓冲区（name='schwab'）

---

如果您想在创建新实例时使用方便方法，请考虑使用CREATE方法创建自定义管理器。例如，看看这个方法，它负责对密码进行哈希运算。

看起来一切正常。只需尝试将

self.b_bname=name

移到

super（）上方即可。

提前移动作业不会改变结果：-(

% python manage.py shell
Python 2.7.3 (default, Aug  4 2012, 18:36:39) 
[GCC 4.2.1 20070831 patched [FreeBSD]] on freebsd9
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>> from buffer.models import Buffer
>>> b = Buffer('schwab')
>>> b.b_tdate = '2008-11-03'
>>> b.b_bdate = '2009-01-20'
>>> b.b_bamnt = 3.1415
>>> b.b_descript = 'easy as pi'
>>> b.b_kind = 'POS'
>>> b.b_account = 'groceries'
>>> b.save()
(0.002) INSERT INTO "buffer_buffer" ("b_bname", "b_tdate", "b_bdate", "b_bamnt", "b_descript", "b_kind", "b_account") VALUES (schwab, 2008-11-03, 2009-01-20, 3.1415, easy as pi, POS, groceries); args=['schwab', u'2008-11-03', u'2009-01-20', 3.1415, 'easy as pi', 'POS', 'groceries']
(0.002) INSERT INTO "buffer_buffer" ("b_bname", "b_tdate", "b_bdate", "b_bamnt", "b_descript", "b_kind", "b_account") VALUES (schwab, 2008-11-03, 2009-01-20, 3.1415, easy as pi, POS, groceries); args=['schwab', u'2008-11-03', u'2009-01-20', 3.1415, 'easy as pi', 'POS', 'groceries']
>>> b.pk                  
1
>>> c = Buffer.objects.get(pk=1)
(0.000) SELECT "buffer_buffer"."id", "buffer_buffer"."b_bname", "buffer_buffer"."b_tdate", "buffer_buffer"."b_bdate", "buffer_buffer"."b_bamnt", "buffer_buffer"."b_descript", "buffer_buffer"."b_kind", "buffer_buffer"."b_account" FROM "buffer_buffer" WHERE "buffer_buffer"."id" = 1 ; args=(1,)
(0.000) SELECT "buffer_buffer"."id", "buffer_buffer"."b_bname", "buffer_buffer"."b_tdate", "buffer_buffer"."b_bdate", "buffer_buffer"."b_bamnt", "buffer_buffer"."b_descript", "buffer_buffer"."b_kind", "buffer_buffer"."b_account" FROM "buffer_buffer" WHERE "buffer_buffer"."id" = 1 ; args=(1,)
>>> c.b_bname
1
>>> c.b_tdate
datetime.date(2009, 1, 20)
>>> c.b_bdate
3.1415
>>> c.b_bamnt
u'easy as pi'
>>> c.b_kind
u'groceries'
>>> c.b_account
''
>>> 
% sqlite3 register 
SQLite version 3.7.13 2012-06-11 02:05:22
Enter ".help" for instructions
Enter SQL statements terminated with a ";"
sqlite> select count(id) from buffer_buffer;
1
sqlite> select b_bamnt from buffer_buffer;
3.1415