Django错误:“'ChoiceField'对象没有属性'is_hidden'” [英] Django error: "'ChoiceField' object has no attribute 'is_hidden'"
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问题描述
Django模板在渲染时会抛出 AttributeError。我想实现的是,在模板中,已解析的forn将包含一个选择框,其中包含来自以下列表的值。
Django template throws 'AttributeError' when rendering..What I want to achive is that in the template the resolted forn will contain a select box with the values from the list below.
这是 Forms.py
文件:
class CallForm (forms.ModelForm):
class Meta():
model = Call
widgets = {
'employee_id' : forms.ChoiceField(choices=FormsTools.EmployeesToTuples(Employee.objects.all()))
}
说明:
FormsTools.EmployeesToTuples(Employee.objects.all()) --> [(1, u'E1'), (2, u'E2'), (3, u'E3')]
这是django的错误:
Here is django's error:
Template error:
In template C:\virtualenv\#\#\templates\new_call.html, error at line 7
'ChoiceField' object has no attribute 'is_hidden'
1 : {% extends "base.html" %}
2 :
3 : {% block content %}
4 :
5 : <form action="/NewCall/" method="post">{% csrf_token %}
6 : <ul>
7 : {{ form.as_p }}
8 : </ul>
9 : <input type="submit" name="submit" value="Add New Call">
10 :
11 : </form>
12 :
13 : {% endblock %}
Traceback:
File "C:\Python27\lib\site-packages\django\core\handlers\base.py" in get_response
112. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\virtualenv\OmegaManager2\OmegaManager\ServiceManager\views.py" in new_call
32. html = t.render(Context(args))
File "C:\Python27\lib\site-packages\django\template\base.py" in render
140. return self._render(context)
File "C:\Python27\lib\site-packages\django\template\base.py" in _render
134. return self.nodelist.render(context)
File "C:\Python27\lib\site-packages\django\template\base.py" in render
840. bit = self.render_node(node, context)
File "C:\Python27\lib\site-packages\django\template\debug.py" in render_node
78. return node.render(context)
File "C:\Python27\lib\site-packages\django\template\loader_tags.py" in render
123. return compiled_parent._render(context)
File "C:\Python27\lib\site-packages\django\template\base.py" in _render
134. return self.nodelist.render(context)
File "C:\Python27\lib\site-packages\django\template\base.py" in render
840. bit = self.render_node(node, context)
File "C:\Python27\lib\site-packages\django\template\debug.py" in render_node
78. return node.render(context)
File "C:\Python27\lib\site-packages\django\template\loader_tags.py" in render
62. result = block.nodelist.render(context)
File "C:\Python27\lib\site-packages\django\template\base.py" in render
840. bit = self.render_node(node, context)
File "C:\Python27\lib\site-packages\django\template\debug.py" in render_node
78. return node.render(context)
File "C:\Python27\lib\site-packages\django\template\debug.py" in render
88. output = self.filter_expression.resolve(context)
File "C:\Python27\lib\site-packages\django\template\base.py" in resolve
585. obj = self.var.resolve(context)
File "C:\Python27\lib\site-packages\django\template\base.py" in resolve
735. value = self._resolve_lookup(context)
File "C:\Python27\lib\site-packages\django\template\base.py" in _resolve_lookup
789. current = current()
File "C:\Python27\lib\site-packages\django\forms\forms.py" in as_p
241. errors_on_separate_row = True)
File "C:\Python27\lib\site-packages\django\forms\forms.py" in _html_output
156. if bf.is_hidden:
File "C:\Python27\lib\site-packages\django\forms\forms.py" in is_hidden
560. return self.field.widget.is_hidden
Exception Type: AttributeError at /NewCall/
Exception Value: 'ChoiceField' object has no attribute 'is_hidden'
该'AttributeError'的含义是什么?如何解决?
谢谢。
What's cosing that 'AttributeError' ? How can it be fixed? Thanks.
推荐答案
ChoiceField
不是小部件-它是表单字段:
class CallForm (forms.ModelForm):
employee_id = forms.ChoiceField(choices=FormsTools.EmployeesToTuples(Employee.objects.all()))
class Meta:
model = Call
fields = ['employee_id']
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