形成一种观点,有条件地检查目前提交进程哪一步,然后确认形式,并选择下一个形式。

<>forms.py

class BaseForm(forms.Form)
    # All our forms will have a hidden field identifying them as either A, B or C
    type = forms.HiddenField(...)

class formA(BaseForm)
    # These are the rest of your attibutes (such as  name  etc.)
    a_1 = forms.TextField(...)
    a_2 = forms.TextField(...)

class formB(BaseForm)
    b_1 = forms.TextField(...)
    b_2 = forms.TextField(...)
    ....

class formC(BaseForm)
    c_1 = forms.TextField(...)
    c_1 = forms.TextField(...)

<>views.py

这一观点可以从URL/form-wizard/中提出,并将列出它收到的三种表格中哪一种,以及它将为下一步提供的形式。 在收集所有数据时,可以进行一些调整或进一步逻辑。

def form_wizard(self, request):
    next_form = None
    curr_form = None
    if request.method== POST :
        # Find out if we have received a form in our chain
        type = request.POST.get("type", None)
        if type ==  a :
            # We are now processing Form A
            curr_form = FormA(request.POST)
            if curr_form.is_valid():
                # Do a check on the attributes (i.e. name==None)
                if curr_form.cleaned_data.get( a_1 ,None):
                    next_form = FormB()
                    # Now set the value of type to  b  for the next form
                    next_form.fields[ type ].initial =  b 
                else:
                    next_form = FormC()
                    next_form.fields[ type ].initial =  c 
        elif type ==  b :
            # Processing B
            curr_form = FormB(request.POST)
            if form.is_valid():
                # Do something with this form
                .... 
                next_form = FormC()
                next_form.fields[ type ].initial =  c 
        elif type ==  c :
             # Processing C
             curr_form = FormC(request.POST)
             if curr_form.is_valid():
             # Last form in chain; either redirect or do something else
             return HttpResponseRedirect(...)
        else:
            # First visit to the wizard, give them the first form
            curr_form = FormA()
            curr_form.fields[ type ].initial =  b 

    return .... { form :curr_form}

最后,在你的模板中:

template.html>

...
<form action="/form-wizard/" method="post">{% csrf_token %}
{{ form.as_p }}
<input type="submit" value="Submit" />
</form>
...