Django-formwizard和ModelFormSet保存 [英] Django-formwizard and ModelFormSet save

问题描述

我正在重写我们的一个应用程序，需要用户创建一个项目与奖励附加到

表单分为不同的步骤，前两个是正常的 Project ，下一个是奖励，然后最后一个简单的预览，让用户来回轻松创建一个完美的项目。 / p>

我的forms.py

  BaseRewardFormSet（BaseModelFormSet）：
 def __init __（self，* args，** kwargs）：
 super（BaseRewardFormSet，self）.__ init __（* args，** kwargs）
 self.queryset = Reward.objects.none（）
 
 RewardFormSet1 = modelformset_factory（Reward，extra = 2，exclude =（'project'），formset = BaseRewardFormSet）
 
 class ProjectForm1（forms。 ModelForm）：
docstring for ProjectForm1
 class Meta：
 model = Project 
 exclude =（...）
 
 class ProjectForm2（forms.ModelForm）：
docstring for ProjectForm2
 class Meta：
 model = Project 
 exclude =（...）
  

我的urls.py

  instance_dict = {'2'：Reward.objects.none（）} 
 url（r'^ new-project / $'，login_required（ProjectWizard.as_view（[ProjectForm1，ProjectForm2 ，RewardFormSet1，ProjectForm3]，instance_dict = instance_dict）），
  

我的views.py

 类ProjectWizard（SessionWizardView）：
 file_storage = cloudfiles_storage 
 
 def get_context_data （self，form，** kwargs）：
 context = super（ProjectWizard，self）.get_context_data（form，** kwargs）
 initial_dict = self.get_form_initial（'0'）
 if self.steps.current =='1'：
 step1_data = self.get_cleaned_data_for_step（'0'）
 context.update（{'step1_data'：step1 _data，'currency_sign'：step1_data ['base_currency']}）
 else：
 step1_data = self.get_cleaned_data_for_step（'0'）
 step2_data = self.get_cleaned_data_for_step（'1'）
 step3_data = self.get_cleaned_data_for_step（'2'）
 context.update（{'step1_data'：step1_data，'step2_data'：step2_data，'step3_data'：step3_data，}）
 return context 
 
 def get_template_names（self）：
 step = int（self.steps.current）
 if step == 3：
 return'formwizard / preview.html'
 else：
 return'formwizard / wizard_form.html'
 
 def done（self，form_list，* args，** kwargs）：
 form_data = form_list [0] .cleaned_data 
 form_data_details = form_list [1] .cleaned_data 
 form_data.update（form_data_details）
 project = Project（）
为项目中的字段。_ dict __。iterkeys（）：
如果form_data中的字段：
 project .__ dict __ [field] = form_data [field] 
 project.owner = self.request.user 
 project.date_published = datetime.now（）
 project.save（）
返回render_to_response（'formwizard / done.html'，{
'form_data'：form_list中的表单的form.cleaned_data]，
}）
  

当渲染重定向时，它显示所有数据已被清除，这意味着表单有效，并且所有项目数据保存到项目

我可以看到，奖励数据不会保存，因为它没有被调用，但是我尝试过的每个解决方案远远失败了。

如何在保存中实施奖励？

可能有人可以在这一点上解释一下，非常感谢！

解决方案

这是否正常？假设奖励有项目。

 code> for form_list [2] .save（commit = False）
 rw.project = project 
 rw.save（）
  / pre> 
I am rewriting a big piece of our application which requires a user to create a Project with Rewards attached to it.

The form is broken into different steps, the first two are the normal Project, the next one is the Rewards, and then lastly a simple preview that lets the user flick back and forth to create a perfect Project.

my forms.py
class BaseRewardFormSet(BaseModelFormSet):
    def __init__(self, *args, **kwargs):
        super(BaseRewardFormSet, self).__init__(*args, **kwargs)
        self.queryset = Reward.objects.none()

RewardFormSet1 = modelformset_factory(Reward, extra=2, exclude=('project'), formset=BaseRewardFormSet)

class ProjectForm1(forms.ModelForm):
    """docstring for ProjectForm1"""
    class Meta:
        model = Project
        exclude=( ... )

class ProjectForm2(forms.ModelForm):
    """docstring for ProjectForm2"""
    class Meta:
        model = Project
        exclude = ( ... )
my urls.py
instance_dict = {'2': Reward.objects.none()}
url(r'^new-project/$', login_required(ProjectWizard.as_view([ProjectForm1, ProjectForm2, RewardFormSet1, ProjectForm3], instance_dict=instance_dict))),
my views.py
class ProjectWizard(SessionWizardView):
    file_storage = cloudfiles_storage

    def get_context_data(self, form, **kwargs):
        context = super(ProjectWizard, self).get_context_data(form, **kwargs)
        initial_dict = self.get_form_initial('0')
        if self.steps.current == '1':
            step1_data = self.get_cleaned_data_for_step('0')
            context.update({'step1_data':step1_data,'currency_sign':step1_data['base_currency']})
        else:
            step1_data = self.get_cleaned_data_for_step('0')
            step2_data = self.get_cleaned_data_for_step('1')
            step3_data = self.get_cleaned_data_for_step('2')
            context.update({'step1_data':step1_data,'step2_data':step2_data,'step3_data':step3_data,})
        return context

    def get_template_names(self):
        step = int(self.steps.current)
        if step == 3:
            return 'formwizard/preview.html'
        else:
            return 'formwizard/wizard_form.html'

    def done(self, form_list, *args, **kwargs):
        form_data = form_list[0].cleaned_data
        form_data_details = form_list[1].cleaned_data
        form_data.update(form_data_details)
        project = Project()
        for field in project.__dict__.iterkeys():
            if field in form_data:
                project.__dict__[field] = form_data[field]
        project.owner = self.request.user
        project.date_published = datetime.now()
        project.save()        
        return render_to_response('formwizard/done.html', {
            'form_data': [form.cleaned_data for form in form_list],
        })
when rendering redirect, it shows that all the data has been cleaned which means that the form is valid, and all the project data is saved to Project

I can see that the Rewards data will not save since it has not been called, but every solution I have tried thus far has failed.

How can I implement Rewards into this solution on save?

Maybe someone can shed some light on this, much appreciated!
解决方案
Is this working? Assuming Reward has project.
for rw in form_list[2].save(commit=False):
    rw.project = project
    rw.save()


                        
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