Python Django formtools向导生成空白页（未返回错误）

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，我就能够这样做）

我得到的唯一答复是：

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

还有一张空白页。浏览器或Eclipse控制台中没有错误

谷歌搜索不可能没有错误。请帮忙

提前谢谢

我做了什么？

首先，我用pip安装了formtools包：

django-formtools==1.0
Django==1.8.3

按照官方文件的指示：

定义表单类

注册/表格.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)

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

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

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'),
)

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

创建向导视图

注册/视图.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)

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

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

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'),
)

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

创建模板

注册/测试步骤1.html

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

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

{% 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 %}

第二条路

注册/视图.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)

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

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

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'),
)

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

---

对于模板，您遵循的示例是什么。尝试从以下内容开始（如果您对formtools生成的字段没有问题，两个页面可以使用相同的模板）：

表单向导
{{wizard.form.media}
{%load i18n%}
{{wizard.steps.count}的步骤{wizard.steps.step1}

{%csrf_令牌%}
{{wizard.management_form}
{%if wizard.form.forms%}
{{wizard.form.management_form}
{wizard.form.forms%中窗体的%s}
{{form}}
{%endfor%}
{%else%}
{{wizard.form}
{%endif%}
{%if wizard.steps.prev%}
{%trans“第一步”%}
{%trans“上一步”%}
{%endif%}

我发现了我的错误。我输入了获取模板的方法名。不是

get_templates_name(self)

但是

它并没有得到任何模板，但当返回到服务器时，它回答了HTTP200OK，因为它并没有发现任何错误

---

我还发现，我的每个步骤的模板都应该扩展主向导模板，以便正常工作。没有必要使用“完成”模板。

导致

self.cleaned_data['field']

为空的主要问题是，我需要使用

form.field.html_name

而不是

form.field.name

作为模板的名称字段

然而，从Django formtools提供的文档来看，这并不是很清楚。以下是我的模板页面的摘录，因此更清晰：

<div class="form-group">
  <label>{{ form.account_name.label }}</label>
  <input name="{{ form.account_name.html_name }}"
         value="{{ form.account_name.value|default_if_none:'' }}"
         class="form-control">
</div>

{{form.account_name.label}

我编辑了帖子以显示向导模板。是的，我上次的评论被编辑了，因为它可能被误解了。我处于相同的情况，表单的主模板一直都是相同的（我只是在创建表单时忘记将其放在stackoverflow帖子中）