Question

我有一个继承自通用CreateView的视图，并覆盖了get_initial方法，如下所示：

class PosterVisualCreateView (ModelFormMixin, generic.edit.CreateView, ObjectClassContextMixin):
    model = Poster
    valid_message = "Successfully created object."
    template_name = "poser/create_poster_visual.html"

    def get_form_class (self):
        return super(PosterVisualCreateView, self).get_form_class(extra="CreateVisual")

    def get_form_kwargs (self):
        kwargs = super(PosterVisualCreateView, self).get_form_kwargs()

        kwargs.update({
            "company": self.request.company
        })
        return kwargs

    def get_context_data (self, **kwargs):
        context = super(PosterVisualCreateView, self).get_context_data(**kwargs)
        context.update({
            "company": self.request.company,
        })
        return context

    def get_initial (self):
        initial = super(PosterVisualCreateView, self).get_initial()
        initial.update({
            "company": self.request.company,
            "template": self.request.company.template_set.all().first()
        })
        return initial

    def form_valid(self, form):
        success_url = super(PosterVisualCreateView, self).form_valid(form)
        attributes = form.instance.create_attributes()
        for attribute in attributes:
            attribute.poster = form.instance
            attribute.save()
        form.instance.save()
        form.instance.render_html(commit=True)
        form.instance.save()
        return success_url

    @method_decorator(login_required)
    def dispatch (self, *args, **kwargs):
        return super(PosterVisualCreateView, self).dispatch(*args, **kwargs)

页面呈现此表单：

class PosterFormCreateVisual (CompanyHiddenForm):
    """Create form for Posters."""
    template = fields.ModelChoiceField(widget=forms.RadioSelect, queryset=Template.objects.all())
    product = fields.ModelChoiceField(widget=forms.Select, queryset=Product.objects.all(),
        required=False)

    class Meta:
        model = Poster
        fields = ("template", "product", "company")

    def __init__ (self, *args, **kwargs):
        company = kwargs.pop("company", None)
        assert company is not None, "Company is required to create attribute form."
        super(PosterFormCreateVisual, self).__init__(*args, **kwargs)
        self.fields["template"].queryset = company.template_set.all()
        self.fields["product"].queryset = company.product_set.all()

初始值应该是模板的无线电选择中的第一项，但事实并非如此，任何人都可以帮助我吗？

Answer 1

试试这个：

"template": self.request.company.template_set.all().first()

但据我所知，原始代码也应该有用。

顺便说一下，你是如何测试表格的？通过点击＆＃34;刷新＆＃34;按钮或Ctrl-R / F5键？某些浏览器重新加载页面但保存以前选择/输入的表单值。要检查初始值，您应重新加载表单页面，方法是单击地址栏（或按Ctrl-L），然后按Enter键。

Django generic为模型选择字段创建视图默认值

1 个答案: