python - Django formtools 向导生成空白页(未返回错误)

Question

我试图在 formtools 包中使用 formwizard 但没有成功(在早期版本中当包在 Django 中时我能够做到这一点)。

我得到的唯一回应是:

[23/Jan/2016 11:06:50]"GET /registration/wizard HTTP/1.1" 200 13729

和一个空白页。浏览器或 Eclipse 控制台中没有错误。

Google 搜索不可能没有错误。请帮忙。

提前致谢

我做了什么？

首先，我用 pip 安装了 formtools 包:

django-formtools==1.0
Django==1.8.3

按照官方文档的说明:

1. 定义表单类

   registration/forms.py

   class StepForm1(forms.Form):
       first_field = forms.CharField(max_length=100)
       second_field = forms.CharField()
   
   class StepForm2(forms.Form):
       message = forms.CharField(widget=forms.Textarea)
   

2. 创建向导 View

   registration/views.py

   TEST_TEMPLATES = {"test_step_1": "registration/test_step1.html", "test_step_2": "registration/test_step2.html", }
   
   from formtools.wizard.views import SessionWizardView
   
   class WizardTest(SessionWizardView):
       template_name = 'registration/test_wizard.html'
   
       # Return templates for each step
       def get_templates_name(self):
           return [TEST_TEMPLATES[self.steps.current]]
   
       # Method called when all is done
       def done(self, form_list, **kwargs):
   
           # return HttpResponseRedirect('/url-to-redirect-to/') 
   
           # We return the final template with the info
           return render_to_response('test_done.html', {
                                      'form_data':[form.cleaned_data for form in form_list],
                                      })
   
       # THESE METHODS BELOW ARE NOT NEEDED, BUT COMMENTED FOR FUTURE USE
   
       # Not strictly needed. Returns data for a step
       # or None if form is not valid
       # def get_cleaned_data_for_step(self, step):
       #     return None
   
       # Form data postprocessing in a concrete wizard step
       # def process_step(self, form):
       #     return self.get_form_step_data(form)
   
       # Handles value from a step before storing them into wizard
       # def get_form_step_data(self, form):
       #     return form.data
   

3. 创建模板

   注册/test_step1.html

   <h1>Two fields form</h1>
   <input id="first_field" name="first_field">
   <input id="second_field" name="second_field">
   

   注册/test_step2.html

   <h1>Message form</h1>
   <input id="message" name="message">
   

   注册/test_wizard.html

   {% extends "person/alumnos.html" %}
   {% load i18n %}
   
   {% block head %}
       {{ wizard.form.media }}
   {% endblock head %}
   
   {% block content %}
   <p>{% trans "Step {{wizard.steps.step1}} of {{wizard.steps.count}}" %}</p>
   
   <form action="" method="post">
   {% csrf_token %}
   
   {{ wizard.management_form }}
   
   {% if wizard.form.forms  %}
       {{ wizard.form.management_form }}
       {% for form in wizard.form.forms %}
           {{form}}
       {% endfor %}
   {% else %}
       {{ wizard.form }}
   {% endif %}
   
   {% if wizard.steps.prev %}
   <button name="wizard_goto_step" type="submit" value="{{ wizard.steps.first }}">{% trans "Beginning" %}</button>
   <button name="wizard_goto_step" type="submit" value="{{ wizard.steps.prev }}">{% trans "Previous step" %}</button>
   {% endif %}
   <input type="submit" value="submit"/>
   
   </form>
   
   {% endblock %}
   

4. 将“formtools”添加到我的 INSTALLED_APPS

   settings.py

   DJANGO_APPS = (
       # Default Django apps:
       'django.contrib.auth',
       'django.contrib.contenttypes',
       'django.contrib.sessions',
       'django.contrib.sites',
       'django.contrib.messages',
       'django.contrib.staticfiles',
       'formtools',                 # <===== HERE
   
       # Useful template tags:
       # 'django.contrib.humanize',
   
       # Admin panel and documentation:
       'django.contrib.admin',
       # 'django.contrib.admindocs',
   )
   
   # Apps specific for this project go here.
   LOCAL_APPS = (
       'person',
       'registration',
       'teaching',
       'utils',
   )
   
   # See: https://docs.djangoproject.com/en/dev/ref/settings/#installed-apps
   INSTALLED_APPS = DJANGO_APPS + LOCAL_APPS
   

5. 将我的 URLconf 指向您的 WizardView as_view() 方法。

注册/urls.py

from registration.forms import StepForm1, StepForm2
TEST_FORMS = [("test_step_1", StepForm1), ("test_step_2", StepForm2), ]

from registration.views import WizardTest

# I tried in two ways, none of them worked

urlpatterns = patterns('',
         url(r'^wizard$', WizardTest.as_view(TEST_FORMS), name='wizard_test'),
         url(r'^wizard2$', views.wizard, name='wizard_test'),
)

对于第二种方式...

registration/views.py

def wizard(request):
    return WizardTest.as_view(TEST_FORMS)(request)

Answer 1

您的模板遵循什么示例？ The basic layout is in the docs .尝试从这样的开始(如果您对 formtools 生成的字段没问题，两个页面可以使用相同的模板):

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Form Wizard</title>
    {{ wizard.form.media }}

</head>
<body>
{% load i18n %}
<p>Step {{ wizard.steps.step1 }} of {{ wizard.steps.count }}</p>
<form action="" method="post">{% csrf_token %}
<table>
{{ wizard.management_form }}
{% if wizard.form.forms %}
    {{ wizard.form.management_form }}
    {% for form in wizard.form.forms %}
        {{ form }}
    {% endfor %}
{% else %}
    {{ wizard.form }}
{% endif %}
</table>
{% if wizard.steps.prev %}
<button name="wizard_goto_step" type="submit" value="{{ wizard.steps.first }}">{% trans "first step" %}</button>
<button name="wizard_goto_step" type="submit" value="{{ wizard.steps.prev }}">{% trans "prev step" %}</button>
{% endif %}
<input type="submit" name="submit" value="{% trans "submit" %}"/>
</form>
</body>
</html>