跳过步骤x到步骤y并验证步骤x数据(skipping step x to step y and validate step x data)

 我实际上在django向导表单上有一个大问题。 
 
 我有3个步骤。 第二步可以包含数据。 最后一步是文件上传步骤。 
 
 在WizardForm类中，我重写了get_context_data方法并将其包含在其中： 
 
if self.steps.current == 'against_indication':
        questions = None
        try:
            # get the machine
            machine_id = self.kwargs['pk']
            machine = Machine.objects.get(pk=int(machine_id))
            # check if there is against indications
            if machine.type_question is False:
                questions = YhappsQuestion.objects.filter(type_modalite=machine.type)
            else:
                questions = CustomQuestion.objects.filter(machine=machine)
        except Machine.DoesNotExist:
                pass
        if len(questions) == 0:
            # we modify the form wizard to skip against indication step
            self.render_next_step(form, **kwargs)
            #self.render_goto_step(step='against_indication', goto_step='prescription', **kwargs)
 
 如你所见，如果没有问题，我跳过第二步（against_indication）进入下一步（处方）。 
 
 问题出现在这里。 呈现最后一步时，向导表单中没有足够的数据。 在ddt的请求中有它： 跳过步骤 。 因此，如果我上传文件，它将填写against_indication数据而不是处方数据，并重新渲染我最后一步... 
 
 我试图在不跳过第二步的情况下完成所有这些操作，看看ddt的请求是如何看的： 没有跳过步骤 。 
 
 ，当我跳过步骤时，有人有一个允许拥有正确数据的解决方案，PLZ？ 
 
 感谢您的进一步答复 

I have actually a big problem on a django wizard form.
 
I have 3 steps. The second step can contains data or not. The last step is a file upload step.
 
In the WizardForm class, i overrided the get_context_data method and include this in it :
 
if self.steps.current == 'against_indication':
        questions = None
        try:
            # get the machine
            machine_id = self.kwargs['pk']
            machine = Machine.objects.get(pk=int(machine_id))
            # check if there is against indications
            if machine.type_question is False:
                questions = YhappsQuestion.objects.filter(type_modalite=machine.type)
            else:
                questions = CustomQuestion.objects.filter(machine=machine)
        except Machine.DoesNotExist:
                pass
        if len(questions) == 0:
            # we modify the form wizard to skip against indication step
            self.render_next_step(form, **kwargs)
            #self.render_goto_step(step='against_indication', goto_step='prescription', **kwargs)
 
As you see, if there is no questions, i skip the second step (against_indication) to go into the next step (prescription).
 
The problem appears here. When the last step is rendered, there is not enough data in the wizard form. In the ddt's request there is it : with skip step. So if i upload the file, it gonna fill the against_indication datas instead of prescription datas, and re-renderer me the last step...
 
I tried to do all of this without skip the second step, and see how look the ddt's request : without skip step.
 
Someone has a solution to permit have the right datas when i skip step, plz ?
 
Thanks for your further answers

原文：https://stackoverflow.com/questions/34904918