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<p>我使用的是webapp2,ndb模型。<br/>
我尝试使用django模型表单和ndb模型。以下是我的设置中的相关部分:</p>
<p><strong>应用程序yaml:</strong></p>
<pre><code>libraries:
- name: webapp2
version: "2.5.1"
- name: jinja2
version: latest
- name: markupsafe
version: latest
- name: django
version: 1.3
</code></pre>
<p><strong>模型.py:</strong></p>
^{pr2}$
<p><strong>表单.py:</strong></p>
<pre><code>from django.forms import ModelForm
from models import TaskList, TaskCategory, SubTask
class SubTaskForm(ModelForm):
class Meta:
model = SubTask
</code></pre>
<p><strong>处理者:</strong></p>
<pre><code>class CreateSubTask(BaseHandler):
def get(self):
self.render_template('index.html', {'form':SubTaskForm})
app = webapp2.WSGIApplication([('/', IndexPage),
('/subtask', CreateSubTask), ],
debug=True)
</code></pre>
<p>我得到的错误是:
<strong>AttributeError:类型对象“SubTask”没有属性“\u meta”</strong></p>
<p><strong>我的问题:</strong>有没有一种方法可以在ndb中使用django模型表单,或者如果我犯了一个错误,那是什么?
如果不是django modelforms,ndb模型是否可以很好地与WTForms一起工作?在</p>
<p>下面是stacktrace:</p>
<pre><code>ERROR 2012-06-23 03:25:58,770 wsgi.py:189]
Traceback (most recent call last):
File "/homeproject/expts/google_appengine/google/appengine/runtime/wsgi.py", line 187, in Handle
handler = _config_handle.add_wsgi_middleware(self._LoadHandler())
File "/homeproject/expts/google_appengine/google/appengine/runtime/wsgi.py", line 225, in _LoadHandler
handler = __import__(path[0])
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 676, in Decorate
return func(self, *args, **kwargs)
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 1858, in load_module
return self.FindAndLoadModule(submodule, fullname, search_path)
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 676, in Decorate
return func(self, *args, **kwargs)
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 1722, in FindAndLoadModule
description)
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 676, in Decorate
return func(self, *args, **kwargs)
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 1665, in LoadModuleRestricted
description)
File "/homeproject/expts/google_appengine/tdl/main.py", line 18, in <module>
from views import IndexPage, CreateSubTask
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 676, in Decorate
return func(self, *args, **kwargs)
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 1858, in load_module
return self.FindAndLoadModule(submodule, fullname, search_path)
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 676, in Decorate
return func(self, *args, **kwargs)
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 1722, in FindAndLoadModule
description)
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 676, in Decorate
return func(self, *args, **kwargs)
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 1665, in LoadModuleRestricted
description)
File "/homeproject/expts/google_appengine/tdl/views.py", line 4, in <module>
from forms import SubTaskForm
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 676, in Decorate
return func(self, *args, **kwargs)
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 1858, in load_module
return self.FindAndLoadModule(submodule, fullname, search_path)
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 676, in Decorate
return func(self, *args, **kwargs)
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 1722, in FindAndLoadModule
description)
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 676, in Decorate
return func(self, *args, **kwargs)
File "/homeproject/expts/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 1665, in LoadModuleRestricted
description)
File "/homeproject/expts/google_appengine/tdl/forms.py", line 4, in <module>
class SubTaskForm(ModelForm):
File "/homeproject/expts/google_appengine/lib/django_1_3/django/forms/models.py", line 205, in __new__
opts.exclude, opts.widgets, formfield_callback)
File "/homeproject/expts/google_appengine/lib/django_1_3/django/forms/models.py", line 145, in fields_for_model
opts = model._meta
AttributeError: type object 'SubTask' has no attribute '_meta'
</code></pre>