Question

当我阅读有关模型和窗口小部件的文档时，看起来您可以在任何模型上使用任何窗口小部件，但是某些默认窗口小部件用于与模型窗体字段对应的窗体域。我能够使用表单字段渲染无线电输入，但不能使用模型字段。

我尝试了很多不同的东西，但我只是似乎无法渲染来自模型字段的modelform字段的RadioSelect小部件。这是否可能？

顺便说一下，我的目标是让无线电输入的初始值与模型字段的当前值（布尔值）相对应。

尝试1：

# views.py
class SettingsView(FormView):
    template_name = 'settings.html'
    success_url = 'settings/saved/'
    form_class = NicknameForm

    def post(self, request, *args, **kwargs):
        profile = request.user.get_profile()
        if request.POST['show_nickname'] == 'False':
            profile.show_nickname = False
            profile.save()         
        elif request.POST['show_nickname'] == 'True':
            profile.show_nickname = True
            profile.save()

        return super(NicknameFormView, self).post(request, *args, **kwargs)

    def get_context_data(self, **kwargs):
        """
        To be able to use 'show_nickname_form' instead of plain 'form' in the template.
        """        
        context = super(NicknameFormView, self).get_context_data(**kwargs)
        context["show_nickname_form"] = context.get('form')
        return context


# models.py 
from django.db import models
from django.contrib.auth.models import User

class Profile(models.Model):
    user = models.OneToOneField(User,
                                unique=True,
                                verbose_name='user',
                                related_name='profile')
    show_nickname = models.BooleanField(default=True)


# forms.py
from django import forms
from models import Profile    

CHOICES = (('shows_nickname', 'Yes'), ('hides_nickname', 'No'))

class NicknameForm(forms.ModelForm):
    class Meta:
        model = Profile
        fields = ('show_nickname',)
        widgets = {
            'show_nickname': forms.RadioSelect(attrs={'choices': CHOICES}),
        }

我的模板部分：

        <form action='' method="post">
            {{ show_nickname_form.as_ul }} {% csrf_token %}
            <input type="submit" value="Save setttings">
        </form>

从{{ show_nickname_form.as_ul }}呈现的表单：

<li><label for="id_show_nickname_0">show nickname:</label> 
<ul></ul>
</li> 
<div style='display:none'><input type='hidden' name='csrfmiddlewaretoken' value='1BqD6HJbP5e01NVwLtmFBqhhu3Y1fiOw' /></div>`

尝试2： #forms.py 来自django进口表格从模型导入配置文件

class NicknameForm(forms.ModelForm):
    class Meta:
        model = Profile
        fields = ('show_nickname',)
        widgets = {
            'show_nickname': forms.RadioSelect(),
        }

尝试3

# forms.py
CHOICES = ((True, 'On',),
  (False, 'Off',))

class NicknameForm(ModelForm):
    show_nickname = ChoiceField(widget=RadioSelect, choices=CHOICES, initial=True , label='')

    class Meta:
        model = Profile
        fields = ('show_nickname',)

这会使无线电输入正常，但我需要它来获取相应模型字段show_nickname的初始值而不是常量True。

我正在使用Django 1.4 btw。

Answer 1

您需要将其设置为ChoiceField而不是BooleanField，并为每个RadioWidget选择# views.py class SettingsView(FormView): template_name = 'settings.html' success_url = 'settings/saved/' form_class = NicknameForm def get_form(self, form_class): """ Returns an instance of the form to be used in this view. """ form = super(SettingsView, self).get_form(form_class) if 'show_nickname' in form.fields: profile = self.request.user.get_profile() form.fields['show_nickname'].initial = profile.show_nickname return form def post(self, request, *args, **kwargs): profile = request.user.get_profile() if request.POST['show_nickname'] == 'False': profile.show_nickname = False profile.save() elif request.POST['show_nickname'] == 'True': profile.show_nickname = True profile.save() return super(NicknameFormView, self).post(request, *args, **kwargs) def get_context_data(self, **kwargs): """ To be able to use 'show_nickname_form' instead of plain 'form' in the template. """ context = super(NicknameFormView, self).get_context_data(**kwargs) context["show_nickname_form"] = context.get('form') return context，以便显示单选按钮。 https://docs.djangoproject.com/en/dev/ref/forms/fields/#django.forms.ChoiceField

如果你想保留布尔字段，你很可能不得不做一些黑客来创建你自己的字段/小部件。

{{1}}

哪些模型字段可以与无线电窗口小部件一起使用（通过模型形式）？

1 个答案: