我正在生产环境中使用Django 1.6.6,最近在开发服务器上升级到了1.9.7。此次更新是在服务器上执行的,我按照这里从South升级概述的步骤进行了操作。
我注意到迁移文件的结构已经改变,它们不再包含
然而,如果我将SQLite数据库从生产或者staging环境复制到本地机器并运行命令,它可以正常工作(因为表已经在数据库中)。 我是否需要手动创建这些表(尽管我认为不需要)或者我做错了什么? 编辑:添加了代码片段和跟踪。对于一开始没有做到这一点,我很抱歉。
我注意到迁移文件的结构已经改变,它们不再包含
create
语句。这会导致问题,因为如果我从GitHub库中拉取这个新代码并运行python manage.py makemigrations
或python manage.py migrate
,它会显示:
django.db.utils.OperationalError: no such table: appname_modelname
跟踪回溯到我的urls.py,因为我在queryset中引用了模型:
queryset=list(chain(models.modelname.objects.filter(booleanField=True).order_by(object), models.aDifferentModel.objects.all())),
在1.9升级之前,syncdb
会为我创建表格,但migrate
不会这样做。我也尝试过python manage.py migrate --run-syncdb
,但是仍然出现相同的错误。然而,如果我将SQLite数据库从生产或者staging环境复制到本地机器并运行命令,它可以正常工作(因为表已经在数据库中)。 我是否需要手动创建这些表(尽管我认为不需要)或者我做错了什么? 编辑:添加了代码片段和跟踪。对于一开始没有做到这一点,我很抱歉。
models.py
class HowToApply(models.Model):
title = models.CharField(max_length=500, blank=True, null=True)
notice = models.TextField(blank=True, null=True)
description = models.TextField(blank=True, null=True)
active = models.BooleanField(default=None)
image = models.FileField(upload_to='numeric/img/%Y', blank=True, null=True)
mobile_image = models.FileField(upload_to='mobile/img/%Y', blank=True, null=True)
sequence_number = models.IntegerField(unique=True)
...
urls.py
from django.conf.urls import patterns, include, url
from django.views.generic import RedirectView, TemplateView, ListView, CreateView
from numeric import models, forms, views
from honeypot.decorators import check_honeypot
from numeric.views import CheckDeviceView
from itertools import chain
urlpatterns = patterns('',
url(r'^academy/howtoapply/$',
ListView.as_view(
queryset = list(chain(models.HowToApply.objects.filter(active=True).order_by('sequence_number'), models.AcademyAdmin.objects.all())),
template_name = 'numeric/apply.html'
),
name='apply'),
...
回溯
Traceback (most recent call last):
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 350, in execute_from_command_line
utility.execute()
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 342, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/core/management/base.py", line 348, in run_from_argv
self.execute(*args, **cmd_options)
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/core/management/base.py", line 398, in execute
self.check()
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/core/management/base.py", line 426, in check
include_deployment_checks=include_deployment_checks,
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/core/checks/registry.py", line 75, in run_checks
new_errors = check(app_configs=app_configs)
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/core/checks/urls.py", line 10, in check_url_config
return check_resolver(resolver)
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/core/checks/urls.py", line 19, in check_resolver
for pattern in resolver.url_patterns:
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/utils/functional.py", line 33, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/core/urlresolvers.py", line 417, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/utils/functional.py", line 33, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/core/urlresolvers.py", line 410, in urlconf_module
return import_module(self.urlconf_name)
File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
__import__(name)
File "/var/www/website_mig/project/urls.py", line 14, in <module>
(r'^', include('numeric.urls')),
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/conf/urls/__init__.py", line 52, in include
urlconf_module = import_module(urlconf_module)
File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
__import__(name)
File "/var/www/website_mig/numeric/urls.py", line 144, in <module>
queryset = list(chain(models.HowToApply.objects.filter(active=True).order_by('sequence_number'), models.AcademyAdmin.objects.all())),
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/db/models/query.py", line 258, in __iter__
self._fetch_all()
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/db/models/query.py", line 1074, in _fetch_all
self._result_cache = list(self.iterator())
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/db/models/query.py", line 52, in __iter__
results = compiler.execute_sql()
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 852, in execute_sql
cursor.execute(sql, params)
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/db/utils.py", line 95, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
File "/var/www/website_mig/venv/local/lib/python2.7/site-packages/django/db/backends/sqlite3/base.py", line 323, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.OperationalError: no such table: numeric_howtoapply`
syncdb
时这种情况不会发生。 - Keenan Lawrenceurls.py
中的查询在导入时执行(因为通常该文件中的所有代码都在导入时执行)。如果这是真的,您可以通过检查回溯来轻松地看到为什么会导入urls.py
。更一般地说,我认为我们需要更多信息才能帮助您(您代码的相关部分以及您获得的完整回溯)。 - Sven Marnach