Question

我正在使用django 1.3和python 2.4进行大规模项目。我决定将它更新为django 1.9和python 2.7。

由于django_admin的sql参数在1.9中被折旧，因此更新数据库创建方法发生了很大变化。

我正在使用命令：

python /usr/local/django/<project>/manage.py migrate --fake-initial --noinput --run-syncdb

用于创建表。但我的表格未创建，管理正在打印此错误。

  Traceback (most recent call last):
  File "/src/project/project-export/django/projectadmin/manage.py", line 13, in <module>
    execute_from_command_line(sys.argv)
  File "/opt/python/lib/python2.7/site-packages/django/core/management/__init__.py", line 353, in execute_from_command_line
    utility.execute()
  File "/opt/python/lib/python2.7/site-packages/django/core/management/__init__.py", line 345, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/opt/python/lib/python2.7/site-packages/django/core/management/base.py", line 348, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/opt/python/lib/python2.7/site-packages/django/core/management/base.py", line 398, in execute
    self.check()
  File "/opt/python/lib/python2.7/site-packages/django/core/management/base.py", line 426, in check
    include_deployment_checks=include_deployment_checks,
  File "/opt/python/lib/python2.7/site-packages/django/core/checks/registry.py", line 75, in run_checks
    new_errors = check(app_configs=app_configs)
  File "/opt/python/lib/python2.7/site-packages/django/core/checks/urls.py", line 13, in check_url_config
    return check_resolver(resolver)
  File "/opt/python/lib/python2.7/site-packages/django/core/checks/urls.py", line 23, in check_resolver
    for pattern in resolver.url_patterns:
  File "/opt/python/lib/python2.7/site-packages/django/utils/functional.py", line 33, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/opt/python/lib/python2.7/site-packages/django/core/urlresolvers.py", line 417, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
  File "/opt/python/lib/python2.7/site-packages/django/utils/functional.py", line 33, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/opt/python/lib/python2.7/site-packages/django/core/urlresolvers.py", line 410, in urlconf_module
    return import_module(self.urlconf_name)
  File "/opt/python/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/usr/local/django/projectadmin/projectadmin/urls.py", line 4, in <module>
    import projectadmin.views
  File "/usr/local/django/projectadmin/projectadmin/views.py", line 20, in <module>
    from projectadmin.forms import UserCreationForm
  File "/usr/local/django/projectadmin/projectadmin/forms.py", line 252, in <module>
    class UserCreationForm(forms.ModelForm):
  File "/usr/local/django/projectadmin/projectadmin/forms.py", line 256, in UserCreationForm
    template_choice = form_utils.create_template_choices_field()
  File "/usr/local/django/projectadmin/projectadmin/form_utils.py", line 15, in create_template_choices_field
    choices = [(x.id, x.template_name) for x in all_templates]
  File "/opt/python/lib/python2.7/site-packages/django/db/models/query.py", line 258, in __iter__
    self._fetch_all()
  File "/opt/python/lib/python2.7/site-packages/django/db/models/query.py", line 1074, in _fetch_all
    self._result_cache = list(self.iterator())
  File "/opt/python/lib/python2.7/site-packages/django/db/models/query.py", line 52, in __iter__
    results = compiler.execute_sql()
  File "/opt/python/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 848, in execute_sql
    cursor.execute(sql, params)
  File "/opt/python/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
  File "/opt/python/lib/python2.7/site-packages/django/db/utils.py", line 95, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/opt/python/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
  File "/opt/python/lib/python2.7/site-packages/django/db/backends/mysql/base.py", line 112, in execute
    return self.cursor.execute(query, args)
  File "/opt/python/lib/python2.7/site-packages/MySQLdb/cursors.py", line 205, in execute
    self.errorhandler(self, exc, value)
  File "/opt/python/lib/python2.7/site-packages/MySQLdb/connections.py", line 36, in defaulterrorhandler
    raise errorclass, errorvalue
django.db.utils.ProgrammingError: (1146, "Table 'project.projectadmin_usertemplate' doesn't exist")

错误中没有与表创建相关的内容。它抱怨丢失了表但没有创建它。

我怀疑INSTALLED_APPS不包含我的表格，但我已将我的申请表附加到settings.py的列表中。我怀疑我需要将我的应用程序单独添加到installed_apps列表中。

我在更新系统时遵循了django本身的推荐程序。

如果我的怀疑是真的，我怎么能在安装的应用程序中添加模型，或者任何其他建议会很棒？

Answer 1

感谢django-user邮件列表，我发现我的问题是在创建之前尝试引用一个尚未创建的表。＆＃34;在开始应用迁移之前，Django 需要导入所有包，以便它可以确定什么需要应用的迁移。但是，在导入过程中它们，您已经在对这些表执行数据库查询。＆＃34; 将这些引用字段放入try catch块中捕获异常＆＃34; ProgrammingError＆＃34;解决了我的问题。

django_admin数据库创建，在sql命令折旧后

1 个答案: