OperationalError：没有这样的列

Question

我对Python非常陌生，并且在编写djbyexample教程。我继续得到一个与我的两个模型之一有关的操作失误，我不知道为什么（虽然我确信它是一个明显的答案）。

我已经设置了两种模式：

from django.db import models 

class DateTime(models.Model): 
    datetime = models.DateTimeField(auto_now_add=True) 

    def __unicode__(self): 
    return unicode(self.datetime) 

class Item(models.Model): 
    name = models.CharField(max_length=60) 
    created= models.ForeignKey(DateTime) 
    priority = models.IntegerField(default=0) 
    difficulty = models.IntegerField(default=0) 
    done = models.BooleanField(default=False) 

    def __str__(self): 
    return self.name 

我的admin.py如下：

from django.contrib import admin 

from models import Item, DateTime 

class ItemAdmin(admin.ModelAdmin): 
    list_display = ["name","priority","difficulty","created","done"] 
    search_fields = ["name"] 

class ItemInline(admin.TabularInline): 
    model = Item 

class DateAdmin(admin.ModelAdmin): 
    list_display = ["datetime"] 
    inlines = [ItemInline] 

admin.site.register(Item,ItemAdmin) 
admin.site.register(DateTime,DateAdmin) 

当试图通过Live管理我去访问项目模型如下回溯：

Environment: 


Request Method: GET 
Request URL: http://127.0.0.1:8000/admin/todo/item/ 

Django Version: 1.6.1 
Python Version: 2.7.3 
Installed Applications: 
('django.contrib.admin', 
'django.contrib.auth', 
'django.contrib.contenttypes', 
'django.contrib.sessions', 
'django.contrib.messages', 
'django.contrib.staticfiles', 
'todo', 
'south') 
Installed Middleware: 
('django.contrib.sessions.middleware.SessionMiddleware', 
'django.middleware.common.CommonMiddleware', 
'django.middleware.csrf.CsrfViewMiddleware', 
'django.contrib.auth.middleware.AuthenticationMiddleware', 
'django.contrib.messages.middleware.MessageMiddleware', 
'django.middleware.clickjacking.XFrameOptionsMiddleware') 


Traceback: 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response 
    114.      response = wrapped_callback(request, *callback_args, **callback_kwargs) 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/contrib/admin/options.py" in wrapper 
    432.     return self.admin_site.admin_view(view)(*args, **kwargs) 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapped_view 
    99.      response = view_func(request, *args, **kwargs) 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/views/decorators/cache.py" in _wrapped_view_func 
    52.   response = view_func(request, *args, **kwargs) 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/contrib/admin/sites.py" in inner 
    198.    return view(request, *args, **kwargs) 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapper 
    29.    return bound_func(*args, **kwargs) 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapped_view 
    99.      response = view_func(request, *args, **kwargs) 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/utils/decorators.py" in bound_func 
    25.     return func(self, *args2, **kwargs2) 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/contrib/admin/options.py" in changelist_view 
    1411.    'selection_note': _('0 of %(cnt)s selected') % {'cnt': len(cl.result_list)}, 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/db/models/query.py" in __len__ 
    77.   self._fetch_all() 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/db/models/query.py" in _fetch_all 
    854.    self._result_cache = list(self.iterator()) 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/db/models/query.py" in iterator 
    220.   for row in compiler.results_iter(): 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py" in results_iter 
    710.   for rows in self.execute_sql(MULTI): 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py" in execute_sql 
    781.   cursor.execute(sql, params) 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/db/backends/util.py" in execute 
    69.    return super(CursorDebugWrapper, self).execute(sql, params) 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/db/backends/util.py" in execute 
    53.     return self.cursor.execute(sql, params) 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/db/utils.py" in __exit__ 
    99.     six.reraise(dj_exc_type, dj_exc_value, traceback) 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/db/backends/util.py" in execute 
    53.     return self.cursor.execute(sql, params) 
File "/home/blake/.virtualenvs/Todo_List/local/lib/python2.7/site-packages/django/db/backends/sqlite3/base.py" in execute 
    450.   return Database.Cursor.execute(self, query, params) 

Exception Type: OperationalError at /admin/todo/item/ 
Exception Value: no such column: todo_item.created_id 

Answer 1

您的数据库不匹配你的模型。删除表格并重新同步，或使用迁移工具修改表格以匹配您的模型。