1

我正在使用 photologue 用 django 创建一个照片库站点。我将 django-tagging 安装到我的 virtualenv 中，但不知道 photologue 不再支持它。现在，在执行迁移后，每当我尝试添加照片或查看照片时，我都会在 /admin/photologue/photo/upload_zip/ 处收到 FieldError 无法将关键字“项目”解析到字段中。选项有：id、name。

我卸载并重新安装了 django、photologue、SQLite 文件，并删除了 django-tagging，但问题仍然存在。我还尝试运行一个使用 photologue 并共享 virtualenv 的不同项目，并提示我执行相同的（假设是破坏性的）迁移。

如果问题跨越多个项目并且所有依赖项都是全新安装的，我无法弄清楚我的系统可能会发生什么变化。

异常位置：/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/db/models/sql/query.py in raise_field_error，第 1389 行

追溯：

Environment:


Request Method: POST
Request URL: http://localhost:8000/admin/photologue/photo/add/

Django Version: 1.7.1
Python Version: 2.7.6
Installed Applications:
('django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django.contrib.sites',
 'sortedm2m',
 'photologue',
 'photologue_custom',
 'pornsite')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware')


Traceback:
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  111.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/contrib/admin/options.py" in wrapper
  584.                 return self.admin_site.admin_view(view)(*args, **kwargs)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapped_view
  105.                     response = view_func(request, *args, **kwargs)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
  52.         response = view_func(request, *args, **kwargs)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/contrib/admin/sites.py" in inner
  204.             return view(request, *args, **kwargs)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/contrib/admin/options.py" in add_view
  1454.         return self.changeform_view(request, None, form_url, extra_context)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapper
  29.             return bound_func(*args, **kwargs)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapped_view
  105.                     response = view_func(request, *args, **kwargs)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/utils/decorators.py" in bound_func
  25.                 return func.__get__(self, type(self))(*args2, **kwargs2)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/db/transaction.py" in inner
  394.                 return func(*args, **kwargs)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/contrib/admin/options.py" in changeform_view
  1405.                 self.save_model(request, new_object, form, not add)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/contrib/admin/options.py" in save_model
  1046.         obj.save()
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/photologue/models.py" in save
  540.         super(Photo, self).save(*args, **kwargs)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/photologue/models.py" in save
  491.         super(ImageModel, self).save(*args, **kwargs)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/db/models/base.py" in save
  591.                        force_update=force_update, update_fields=update_fields)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/db/models/base.py" in save_base
  628.                                    update_fields=update_fields, raw=raw, using=using)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/dispatch/dispatcher.py" in send
  198.             response = receiver(signal=self, sender=sender, **named)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/tagging/fields.py" in _save
  81.             Tag.objects.update_tags(kwargs['instance'], tags)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/tagging/models.py" in update_tags
  34.                                         items__object_id=obj.pk))
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/db/models/manager.py" in manager_method
  92.                 return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/db/models/query.py" in filter
  691.         return self._filter_or_exclude(False, *args, **kwargs)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/db/models/query.py" in _filter_or_exclude
  709.             clone.query.add_q(Q(*args, **kwargs))
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/db/models/sql/query.py" in add_q
  1287.         clause, require_inner = self._add_q(where_part, self.used_aliases)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/db/models/sql/query.py" in _add_q
  1314.                     current_negated=current_negated, connector=connector)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/db/models/sql/query.py" in build_filter
  1138.         lookups, parts, reffed_aggregate = self.solve_lookup_type(arg)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/db/models/sql/query.py" in solve_lookup_type
  1076.         _, field, _, lookup_parts = self.names_to_path(lookup_splitted, self.get_meta())
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/db/models/sql/query.py" in names_to_path
  1383.             self.raise_field_error(opts, name)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/db/models/sql/query.py" in raise_field_error
  1389.                          "Choices are: %s" % (name, ", ".join(available)))

Exception Type: FieldError at /admin/photologue/photo/add/
Exception Value: Cannot resolve keyword 'items' into field. Choices are: id, name
4

2 回答 2

1

问题似乎源于这样一个事实，即 django-tagging 在 vi​​rtualenv 上仍然存在。

在 photologue 保存模型后的回溯中，django-tagging 对发送的信号做出反应并尝试更新任何相关标签：

File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/django/dispatch/dispatcher.py" in send
  198.             response = receiver(signal=self, sender=sender, **named)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/tagging/fields.py" in _save
  81.             Tag.objects.update_tags(kwargs['instance'], tags)
File "/home/cameron/Envs/photologue/local/lib/python2.7/site-packages/tagging/models.py" in update_tags
  34.                                         items__object_id=obj.pk))

它在那里尝试使用（显然不再存在）字段items，这就是发生错误的地方。

我猜你在 venv 上卸载 django-tagging 的方式并没有真正起作用。你卸载了：pip uninstall django-tagging？

作为参考，这里再次我的评论/步骤来重新创建 venv

...如果您的 venv 以某种方式损坏，最简单的方法可能是从头开始重新创建它：

  1. 在你的 venv 上做：

    env pip freeze > orig_requirements.txt

    检查orig_requirements.txt并删除您不需要的所有内容。

  2. 制作一个没有站点包的新 venv 并重新安装要求：

    mkvirtualenv --no-site-packages photoenv

    pip install -r orig_requirements.txt

  3. 现在在运行 django 项目时仔细检查你是否在这个 venv 上

    workon photoenv

于 2014-12-03T11:06:10.217 回答
0

好吧，错误很简单——因为您正在请求数据库中不存在的字段。由于您尚未发布代码，因此很难比这更具体。是否构建了一个模板，引用了一个不再存在的名为“items”的字段？

请编辑您的问题以包含完整的回溯以及您认为可能存在问题的一些代码。

完整的追溯将使您更好地了解问题所在。

于 2014-12-01T23:57:52.883 回答