django modelformset_factory中的MultiValueDictKeyError [英] MultiValueDictKeyError in django modelformset_factory
问题描述
这是我的代码。 p>
forms.py
class SchoolSectionForm（forms.ModelForm）：
def __init __（self，* args，** kwargs）：
self.helper = FormHelper（）
self.helper.form_tag = False
self .helper.layout =布局（
Div（
'name'，
css_class ='name'，
），
）
super（SchoolSectionForm，self）.__ init __（* args，** kwargs）
class Meta：
model = SchoolSection
exclude = [
'学校'，
'created_by'，
]
class SectionBreakFormSet（BaseFormSet）：
def __init __（self，* args， ** kwargs）：
super（SectionBreakFormSet，self）._ _init __（* args，** kwargs）
class SectionBreakForm（forms.ModelForm）：
def __init __（self，* args，** kwargs）
self.helper = FormHelper（）
self.helper.form_tag = False
self.helper.layout =布局（
Div（
Div
'start_time'，
css_class ='start_time'，
），
Div（
'end_time'，
css_class ='end_time'，
），
css_class ='formset_element'，
）
）
super（SectionBreakForm，self）.__ init __（* args，** kwargs）
class Meta：
model = SectionBreak
exclude = [
'school_section'，
'created_by'，
]
views.py
def school_se ction_edit（request，section_id）：
section = get_object_or_404（
SchoolSection，
id = section_id，
）
current_school = request。 user.current_school
school_sections_list = current_school.schoolsection_set.all（）
section_break_formset = modelformset_factory（
SectionBreak，
max_num = 3，
extra = 0，
form = SectionBreakForm，
）
formset_qset = SectionBreak.objects.filter（school_section = section）
formset = section_break_formset（queryset = formset_qset）
school_section_form = SchoolSectionForm（instance = section）
如果request.method =='POST'：
school_section_form = SchoolSectionForm（request.POST）
＃此行中的错误提高
formset = section_break_formset（request.POST，queryset = formset_qset）
＃此行中的错误引发
如果school_section_ form.is_valid（）和formset.is_valid（）：
school_section_form.save（）
formset.save（）
messages.success（
请求，
u'xxx'，
）
返回HttpResponseRedirect（reverse（'school：school_section_add'））
else：
message.error（
请求，
u'xxx'，
）
返回渲染（请求，'school / schoolsection_add.html'，{
'school_section_form'：school_section_form，
'formset'：formset，
'school_sections_list'：school_sections_list，
}）
模板
< form class =new_section_formmethod =postaction = >
< div class =school_section_form>
{％crispy school_section_form％}
< / div>
< h3> Horarios de descanso：< / h3>
< div class =section_break_formset>
{％crispy formset formset.form.helper％}
< / div>
< button class =button color> guardar< / button>
< / form>
当我发布表单... crashh ....我有这个错误
感谢您的帮助...
异常类型：/ Administrador / ciclo-educativo / editar / 34 /
中的MultiValueDictKeyError异常值： 关键u'form-0-id未在<> QueryDict中找到：{u'name'：[u'Primaria']，u'form-MAX_NUM_FORMS'：[u'3']，u'form-TOTAL_FORMS '：[u'1']，u'form-0-start_time'：[u'07：00：00']，u'form-0-end_time'：[u'12：00：00']，u 'form-INITIAL_FORMS'：[u'1']，u'csrfmiddlewaretoken'：[u'aZkZPJ6tlzJeCd1kjC0EpkjPuFbWe6IB'，u'aZkZPJ6tlzJeCd1kjC0EpkjPuFbWe6IB']}<>
您可能需要添加表单ID {{form.id }} 例如
{％crispy formset formset.form.id％}
I'm trying to imeplement an edit formset. Then, i'm instancing the objects in the formset using modelformset_factory. When the request isn't POST, the formset loads perfectly, but, if the request is POST, the formset constructor raises a MultiValueDictKeyError.
This is my code.
forms.py
class SchoolSectionForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
self.helper = FormHelper()
self.helper.form_tag = False
self.helper.layout = Layout(
Div(
'name',
css_class='name',
),
)
super(SchoolSectionForm, self).__init__(*args, **kwargs)
class Meta:
model = SchoolSection
exclude = [
'school',
'created_by',
]
class SectionBreakFormSet(BaseFormSet):
def __init__(self, *args, **kwargs):
super(SectionBreakFormSet, self).__init__(*args, **kwargs)
class SectionBreakForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
self.helper = FormHelper()
self.helper.form_tag = False
self.helper.layout = Layout(
Div(
Div(
'start_time',
css_class='start_time',
),
Div(
'end_time',
css_class='end_time',
),
css_class='formset_element',
)
)
super(SectionBreakForm, self).__init__(*args, **kwargs)
class Meta:
model = SectionBreak
exclude = [
'school_section',
'created_by',
]
views.py
def school_section_edit(request, section_id):
section = get_object_or_404(
SchoolSection,
id=section_id,
)
current_school = request.user.current_school
school_sections_list = current_school.schoolsection_set.all()
section_break_formset = modelformset_factory(
SectionBreak,
max_num=3,
extra=0,
form=SectionBreakForm,
)
formset_qset = SectionBreak.objects.filter(school_section=section)
formset = section_break_formset(queryset=formset_qset)
school_section_form = SchoolSectionForm(instance=section)
if request.method == 'POST':
school_section_form = SchoolSectionForm(request.POST)
# Bug raises in this line
formset = section_break_formset(request.POST, queryset=formset_qset)
# Bug raises in this line
if school_section_form.is_valid() and formset.is_valid():
school_section_form.save()
formset.save()
messages.success(
request,
u'xxx',
)
return HttpResponseRedirect(reverse('school:school_section_add'))
else:
messages.error(
request,
u'xxx',
)
return render(request, 'school/schoolsection_add.html', {
'school_section_form': school_section_form,
'formset': formset,
'school_sections_list': school_sections_list,
})
template
<form class="new_section_form" method="post" action="">
<div class="school_section_form">
{% crispy school_section_form %}
</div>
<h3>Horarios de descanso:</h3>
<div class="section_break_formset">
{% crispy formset formset.form.helper %}
</div>
<button class="button color">guardar</button>
</form>
When i post the form... crashh.... i have this error
thanks for help...
Exception Type: MultiValueDictKeyError at /administrador/ciclo-educativo/editar/34/ Exception Value: "Key u'form-0-id' not found in <>QueryDict: {u'name': [u'Primaria'], u'form-MAX_NUM_FORMS': [u'3'], u'form-TOTAL_FORMS': [u'1'], u'form-0-start_time': [u'07:00:00'], u'form-0-end_time': [u'12:00:00'], u'form-INITIAL_FORMS': [u'1'], u'csrfmiddlewaretoken': [u'aZkZPJ6tlzJeCd1kjC0EpkjPuFbWe6IB', u'aZkZPJ6tlzJeCd1kjC0EpkjPuFbWe6IB']}<>"
You might need to add the form id {{ form.id }} e.g.
{% crispy formset formset.form.id %}
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