Formset隐藏字段的初始值

时间:2015-10-01 19:30:01

标签: python django hidden-field modelform formset

我在formset中部署的模型中隐藏字段的初始值存在问题。只是第一个表单在隐藏字段中具有初始值,而其他表单为空。

modelForm是:

class md_changelogFormModel(forms.ModelForm):
    post_docs = forms.CharField(widget=forms.HiddenInput(),
                                initial="READY_FOR_RUN")
    # Other fields

    class Meta:
        model = md_changelog
        fields = '__all__'

在基于BaseInlineFormSet的表单中使用相同的模型md_changelog:

class md_changelogForm(BaseInlineFormSet)

      class Meta:
            model = md_changelog
            fields = '__all__'

使用inlineformset_factory创建一个formset类:

md_changelogFormSet = inlineformset_factory(md_orderlog, md_changelog,
                                            form=md_changelogFormModel,
                                            formset=md_changelogForm,
                                            extra=1, max_num=20)

formset类在基于类的视图中实例化:

def get(self, request, *args, **kwargs):
    """
    Handles GET requests and instantiates blank versions of the form
    and its inline formsets.
    """
    self.object = None
    form_class = self.get_form_class()
    form = self.get_form(form_class)

    md_changelog_form = md_changelogFormSet(initial=[{'post_docs':'READY_FOR_RUN'}])

    return self.render_to_response(
        self.get_context_data(form=form,
                              md_changelog_form=md_changelog_form))

问题是当post函数收到request.POST时,只有formset数据的第一种形式的post_docs hidden字段用初始值填充,其他没有。

如何初始化其他表格?

谢谢!

1 个答案:

答案 0 :(得分:0)

如果您需要为给定表单字段中的所有表单提供初始值,请查看文档:{​​{3}}

因此,在我看来,为了初始化具有相同初始日期的所有3个字段,您应该将代码更改为:

def get(self, request, *args, **kwargs):
    """
    Handles GET requests and instantiates blank versions of the form
    and its inline formsets.
    """
    self.object = None
    form_class = self.get_form_class()
    form = self.get_form(form_class)

   md_changelog_form = md_changelogFormSet(initial=[
       {'post_docs':'READY_FOR_RUN'},
       {'post_docs':'READY_FOR_RUN'},
       {'post_docs':'READY_FOR_RUN'},
   ])

   return self.render_to_response(self.get_context_data(form=form, md_changelog_form=md_changelog_form))

希望有所帮助!