我从1.10.7更新到1.11.0，我在查看表单时收到以下错误。我根本无法理解我的形式有什么问题。其他形式以相同的方式工作。我怀疑这可能是与select2或markdownx的互动，但没有迹象表明这些与1.11不兼容。
如何进一步调试？
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/core/handlers/exception.py" in inner
41. response = get_response(request)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/core/handlers/base.py" in _get_response
187. response = self.process_exception_by_middleware(e, request)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/core/handlers/base.py" in _get_response
185. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/contrib/auth/decorators.py" in _wrapped_view
23. return view_func(request, *args, **kwargs)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/contrib/auth/decorators.py" in _wrapped_view
23. return view_func(request, *args, **kwargs)
File "/home/usr/repos/intranet/isotek_intranet_site/order_book/views.py" in create
161. return render(request, 'order_book/create.html', context)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/shortcuts.py" in render
30. content = loader.render_to_string(template_name, context, request, using=using)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/template/loader.py" in render_to_string
68. return template.render(context, request)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/template/backends/django.py" in render
66. return self.template.render(context)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/template/base.py" in render
207. return self._render(context)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/template/base.py" in _render
199. return self.nodelist.render(context)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/template/base.py" in render
990. bit = node.render_annotated(context)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/template/base.py" in render_annotated
957. return self.render(context)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/template/loader_tags.py" in render
177. return compiled_parent._render(context)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/template/base.py" in _render
199. return self.nodelist.render(context)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/template/base.py" in render
990. bit = node.render_annotated(context)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/template/base.py" in render_annotated
957. return self.render(context)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/template/loader_tags.py" in render
72. result = block.nodelist.render(context)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/template/base.py" in render
990. bit = node.render_annotated(context)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/template/base.py" in render_annotated
957. return self.render(context)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/template/base.py" in render
1046. return render_value_in_context(output, context)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/template/base.py" in render_value_in_context
1024. value = force_text(value)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/utils/encoding.py" in force_text
78. s = six.text_type(s)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/utils/html.py" in <lambda>
376. klass.__unicode__ = lambda self: mark_safe(klass_unicode(self))
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/forms/boundfield.py" in __str__
41. return self.as_widget()
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/forms/boundfield.py" in as_widget
120. **kwargs
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/forms/widgets.py" in render
220. context = self.get_context(name, value, attrs)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/forms/widgets.py" in get_context
665. context = super(Select, self).get_context(name, value, attrs)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/forms/widgets.py" in get_context
626. context = super(ChoiceWidget, self).get_context(name, value, attrs)
File "/home/usr/.virtualenvs/intranet/lib/python2.7/site-packages/django/forms/widgets.py" in get_context
211. 'attrs': self.build_attrs(self.attrs, attrs),
Exception Type: TypeError at /order_book/create/
Exception Value: build_attrs() takes at most 2 arguments (3 given)
模板：
<form action="/order_book/invoice/create/" method="post">
{% csrf_token %}
<input type='hidden' name='action' value='create'>
<table>
<tr>
<td>{{ form.active.label }}</td>
<td>{{ form.active }}</td>
</tr>
<!-- other entries like the one above… -->
<tr>
<td>
<button type="submit" value="Add"><img src="/static/images/tick.png" alt="Set">
Create new project code</button>
</td>
</tr>
</table>
观点：
def create_code(request): # pragma: no cover
context = {}
if request.method == 'POST':
form = MyForm(request.POST)
if form.is_valid():
pass # Clearly for testing…
form = MyForm()
context['form'] = form
return render(request, 'order_book/create_code.html', context)
表格：
class MyForm(forms.ModelForm):
class Meta:
model = MyModel
fields = '__all__'
widgets = {
'manager': Select2Widget(attrs={'style': 'min-width:400px'}),
}
答案 0 :(得分：1)
他们改变了Django 1.11 /
中的build_attrs函数您可能还需要使用pip升级select2和markdownx。
pip install select2 markdownx --upgrade
答案 1 :(得分：0)
在Django 1.11更新中，他们将build_attrs类更改为仅使用2个参数，其中所有额外参数现在应该在dict中传递。
因此，当您使用使用build_attrs函数的自定义窗口小部件时，您需要更改build_attrs调用：
build_attrs(attrs, foo='bizz', bar='baz')
为：
build_attrs(attrs, {'foo':'bizz', 'bar':'baz'})
因此，罪魁祸首是Select2类。您可以通过使用新方法对渲染函数进行超级分类和覆盖来自行修复它，或者您可以检查作者是否有更新。