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我试图将django-concurrency project添加到django 1.6.8 webapp的管理界面。该应用程序处理存储关于我们称为“配置”的对象的数据。我们希望避免因这些配置的并发编辑而导致的问题。Django并发属性错误
到目前为止，我已经做到最好遵循documentation与管理界面集成，但我得到一个讨厌的AttributeError的：
Internal Server Error: /test/common/configuration/
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 137, in get_response
response = response.render()
File "/usr/local/lib/python2.7/dist-packages/django/template/response.py", line 105, in render
self.content = self.rendered_content
File "/usr/local/lib/python2.7/dist-packages/django/template/response.py", line 82, in rendered_content
content = template.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 140, in render
return self._render(context)
File "/usr/local/lib/python2.7/dist-packages/django/test/utils.py", line 85, in instrumented_test_render
return self.nodelist.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 840, in render
bit = self.render_node(node, context)
File "/usr/local/lib/python2.7/dist-packages/django/template/debug.py", line 78, in render_node
return node.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py", line 123, in render
return compiled_parent._render(context)
File "/usr/local/lib/python2.7/dist-packages/django/test/utils.py", line 85, in instrumented_test_render
return self.nodelist.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 840, in render
bit = self.render_node(node, context)
File "/usr/local/lib/python2.7/dist-packages/django/template/debug.py", line 78, in render_node
return node.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py", line 123, in render
return compiled_parent._render(context)
File "/usr/local/lib/python2.7/dist-packages/django/test/utils.py", line 85, in instrumented_test_render
return self.nodelist.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 840, in render
bit = self.render_node(node, context)
File "/usr/local/lib/python2.7/dist-packages/django/template/debug.py", line 78, in render_node
return node.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py", line 123, in render
return compiled_parent._render(context)
File "/usr/local/lib/python2.7/dist-packages/django/test/utils.py", line 85, in instrumented_test_render
return self.nodelist.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 840, in render
bit = self.render_node(node, context)
File "/usr/local/lib/python2.7/dist-packages/django/template/debug.py", line 78, in render_node
return node.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py", line 62, in render
result = block.nodelist.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 840, in render
bit = self.render_node(node, context)
File "/usr/local/lib/python2.7/dist-packages/django/template/debug.py", line 78, in render_node
return node.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py", line 62, in render
result = block.nodelist.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 840, in render
bit = self.render_node(node, context)
File "/usr/local/lib/python2.7/dist-packages/django/template/debug.py", line 78, in render_node
return node.render(context)
File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 1196, in render
_dict = func(*resolved_args, **resolved_kwargs)
File "/usr/local/lib/python2.7/dist-packages/django/contrib/admin/templatetags/admin_list.py", line 288, in result_list
'results': list(results(cl))}
File "/usr/local/lib/python2.7/dist-packages/django/contrib/admin/templatetags/admin_list.py", line 266, in results
yield ResultList(None, items_for_result(cl, res, None))
File "/usr/local/lib/python2.7/dist-packages/django/contrib/admin/templatetags/admin_list.py", line 258, in __init__
super(ResultList, self).__init__(*items)
File "/usr/local/lib/python2.7/dist-packages/django/contrib/admin/templatetags/admin_list.py", line 185, in items_for_result
f, attr, value = lookup_field(field_name, result, cl.model_admin)
File "/usr/local/lib/python2.7/dist-packages/django/contrib/admin/util.py", line 254, in lookup_field
value = attr(obj)
File "/usr/local/lib/python2.7/dist-packages/concurrency/admin.py", line 37, in action_checkbox
get_revision_of_object(obj))))
File "/usr/local/lib/python2.7/dist-packages/concurrency/api.py", line 23, in get_revision_of_object
return getattr(obj, get_version_fieldname(obj))
File "/usr/local/lib/python2.7/dist-packages/concurrency/core.py", line 22, in get_version_fieldname
return obj._concurrencymeta._field.attname
AttributeError: 'Configuration' object has no attribute '_concurrencymeta'
[21/Nov/2014 20:29:51] "GET /test/common/configuration/ HTTP/1.1" 500 368613
到目前为止，我已经改变了ConfigurationAdmin类如here所述继承ConcurrentModelAdmin。
class ConfigurationAdmin(ConcurrentModelAdmin):
form = forms.ConfigurationForm
change_list_template = 'admin/configuration/change_list.html'
...
我也delete_selected_confirmation.html改变{{ obj.pk }}到{{ obj|identity }}为定向在documentation。
有谁知道如何解决这个问题？如果需要，我可以提供更多来自其他文件的代码。