我在Django应用程序中有以下表单:
class SurveyAreaForm(ModelForm):
class Media(object):
js = formset_media_js
class Meta:
model = SurveyArea
exclude = ['survey', ]
widgets = {
'action_by': CustomDateInput(),
}
AreaFormSet = inlineformset_factory(Survey, SurveyArea, form=SurveyAreaForm)
class SurveyForm(ModelForm):
class Meta:
model = Survey
exclude = ['tech', 'operator', ]
widgets = {
'date': CustomDateInput(),
'client': FilteredJQMRadioSelectWithAdd(),
'assessorSignature': SignatureInput(attrs={'id': 'assessorSignature'}),
}
def __init__(self, *args, **kwargs):
super(SurveyForm, self).__init__(*args, **kwargs)
self.fields['client'].empty_label = None
我正在使用https://pypi.python.org/pypi/django-formset-js/0.3.0来提供JavaScript以添加其他表单 .
每个Survey对象都可以有一个或多个与之关联的SurveyAreas,我想使用相同的表单使它们可编辑 . 但是,我遇到了渲染初始数据的问题 . 这是我的观点:
class SurveyUpdateView(SurveyValidateMixin, UpdateViewWithTech):
model = Survey
form_class = SurveyForm
success_url="/forms/survey/updated/"
template_name="my_django_app/survey_update.html"
def get(self, request, *args, **kwargs):
"""
Handles GET requests and instantiates blank version of the form
and its inline formsets.
"""
self.object = self.get_object()
form_class = self.get_form_class()
form = self.get_form(form_class)
# Get areas
areas = SurveyArea.objects.filter(survey=self.object).order_by('name').values()
# Render form
area_form = AreaFormSet(initial=areas)
return self.render_to_response(
self.get_context_data(form=form,
area_form = area_form))
def post(self, request, *args, **kwargs):
"""
Handles POST requests, instantiating a form instance and its inline
formsets with the passed POST variables and them checking them for
validity.
"""
self.object = self.get_object()
form_class = self.get_form_class()
form = self.get_form(form_class)
area_form = AreaFormSet(self.request.POST)
if (form.is_valid() and area_form.is_valid()):
return self.form_valid(form, area_form)
else:
return self.form_invalid(form, area_form)
我也有 SurveyCreateView
,工作正常,使用 SurveyValidateMixin
在这些视图之间共享验证 . SurveyUpdateView
也继承自 UpdateViewWithTech
,它基本上只是限制用户的查询集并自动设置表示用户的字段 .
我遇到的问题是渲染初始数据 . 在 SurveyUpdateView
的 get()
方法中,我_2980260已经能够确认在我获取与此调查相关的区域(在可变区域中),数据似乎是正确的 . 以下是8个项目的外观:
[{'description': u'A', 'photo': u'', 'action_required': u'A', 'action_by': datetime.date(2013, 11, 14), 'survey_id': 12L, u'id': 21L, 'action_taken': True, 'name': u'A'}, {'description': u'A', 'photo': u'', 'action_required': u'A', 'action_by': datetime.date(2013, 11, 14), 'survey_id': 12L, u'id': 19L, 'action_taken': True, 'name': u'A'}, {'description': u'A', 'photo': u'', 'action_required': u'A', 'action_by': datetime.date(2013, 11, 14), 'survey_id': 12L, u'id': 29L, 'action_taken': True, 'name': u'A'}, {'description': u'A', 'photo': u'', 'action_required': u'A', 'action_by': datetime.date(2013, 11, 14), 'survey_id': 12L, u'id': 30L, 'action_taken': True, 'name': u'A'}, {'description': u'B', 'photo': u'', 'action_required': u'B', 'action_by': datetime.date(2013, 11, 14), 'survey_id': 12L, u'id': 22L, 'action_taken': True, 'name': u'B'}, {'description': u'B', 'photo': u'', 'action_required': u'B', 'action_by': datetime.date(2013, 11, 14), 'survey_id': 12L, u'id': 20L, 'action_taken': True, 'name': u'B'}, {'description': u'B', 'photo': u'', 'action_required': u'B', 'action_by': datetime.date(2013, 11, 14), 'survey_id': 12L, u'id': 31L, 'action_taken': True, 'name': u'B'}, {'description': u'C', 'photo': u'', 'action_required': u'C', 'action_by': datetime.date(2013, 11, 14), 'survey_id': 12L, u'id': 23L, 'action_taken': True, 'name': u'C'}, {'description': u'X', 'photo': u'', 'action_required': u'X', 'action_by': datetime.date(2013, 11, 14), 'survey_id': 12L, u'id': 24L, 'action_taken': True, 'name': u'X'}, {'description': u'Y', 'photo': u'', 'action_required': u'Y', 'action_by': datetime.date(2013, 11, 14), 'survey_id': 12L, u'id': 25L, 'action_taken': True, 'name': u'Y'}, {'description': u'Z', 'photo': u'', 'action_required': u'Z', 'action_by': datetime.date(2013, 11, 14), 'survey_id': 12L, u'id': 26L, 'action_taken': True, 'name': u'Z'}]
但是,在实例化 AreaFormSet
时,将该数据作为 initial
的值传递不会正确呈现数据 . 如果在 AreaFormSet
的定义中,我设置了 extra
的值,我得到了渲染区域的数量(如果未定义,则显示三个,我认为是 extra
的默认值) . 我想看到的行为是每个现有区域以自己的形式呈现 .
再次使用PDB,如果我在使用 area_form.as_table()
设置之后转储area_form的值,我只获得 extra
中设置的表单数量,因此问题似乎与传递初始数据有关 .
我是否正确地通过了 initial
的值?我知道 initial
的值应该是一个字典列表,它看起来对我来说是正确的,但我没有得到正确数量的区域渲染 .
1 回答
你有没有尝试过
代替
?