默认形式为

问题描述

在添加日历（“ Calendar”型号的日历）的表单中，“组”字段中显示一个下拉菜单，其中包含所有“ CalendarGroups”。我希望此菜单不存在，并且我希望通过url参数（“ group_id”）传递的“ group” ID默认设置“ group”。我该怎么解决？

在models.py中：

class CalendarGroups(models.Model):
    name = models.CharField(max_length = 155,blank=True,null=True,unique=True)
 
    def __str__(self):
        return str(self.name)
 
    @property
    def get_html_url(self):
        url = reverse('',args=(self.id,))
        return f'<a href="{url}"> {self.name} </a>'
 
 
class Calendar(models.Model):
    name = models.CharField(max_length=200,unique=True)
    #created_by
    group = models.ForeignKey(CalendarGroups,on_delete = models.CASCADE,default='')
 
    @property
    def get_html_url(self):
        url = reverse('cal:calendar_view',self.group))
        return f'<a href="{url}"> {self.name} </a>'

在forms.py中：

class CalendarGroupsForm(ModelForm):
  class Meta:
    model = CalendarGroups
 
    fields = ('name',)
 
    def __init__(self,*args,**kwargs):
        super(CalendarGroupsForm,self).__init__(*args,**kwargs)
 
 
class CalendarForm(ModelForm):
  class Meta:
    model = Calendar
 
    fields = ('name','group')
 
    def __init__(self,**kwargs):
        super(CalendarForm,**kwargs)
 

在views.py中：

def group(request,group_id=None):
    instance = CalendarGroups()
    if group_id:
        instance = get_object_or_404(CalendarGroups,pk=group_id)
    else:
        instance = CalendarGroups()
 
    form = CalendarGroupsForm(request.POST or None,instance=instance)
    if request.POST and form.is_valid():
        form.save()
        return HttpResponseRedirect(reverse('cal:home'))
    return render(request,'cal/form.html',{'form': form})
 
def calendar(request,group_id=None):
    instance = Calendar()
 
    form = CalendarForm(request.POST or None,{'form': form})
 
 

在urls.py中：

url(r'^home/(?P<group_id>\d+)/calendar/new/$',views.calendar,name='calendar_new')

解决方法

咨询了documentation之后，我通过如下修改代码来解决了这个问题：

在views.py中：

<Select defaultValue="" onChange={[Function (anonymous)]} style={{...}} transitionName="slide-up" choiceTransitionName="" bordered={true}></Select>
        <Select virtual={[undefined]} dropdownMatchSelectWidth={[undefined]} defaultValue="" onChange={[Function (anonymous)]} style={{...}} transitionName="slide-up" choiceTransitionName="" listHeight={256} listItemHeight={24} mode={[undefined]} prefixCls="ant-select" direction={[undefined]} inputIcon={[Function: mergedSuffixIcon]} menuItemSelectedIcon={{...}} removeIcon={{...}} clearIcon={{...}} notFoundContent={{...}} className="" getPopupContainer={[undefined]} dropdownClassName="">
          <ForwardRef(Select) virtual={[undefined]} dropdownMatchSelectWidth={[undefined]} defaultValue="" onChange={[Function (anonymous)]} style={{...}} transitionName="slide-up" choiceTransitionName="" listHeight={256} listItemHeight={24} mode={[undefined]} prefixCls="ant-select" direction={[undefined]} inputIcon={[Function: mergedSuffixIcon]} menuItemSelectedIcon={{...}} removeIcon={{...}} clearIcon={{...}} notFoundContent={{...}} className="" getPopupContainer={[undefined]} dropdownClassName="">
            <div className="ant-select ant-select-single ant-select-show-arrow" style={{...}} onMouseDown={[Function: onInternalMouseDown]} onKeyDown={[Function: onInternalKeyDown]} onKeyUp={[Function: onInternalKeyUp]} onFocus={[Function: onContainerFocus]} onBlur={[Function: onContainerBlur]}>
              <SelectTrigger disabled={[undefined]} prefixCls="ant-select" visible={[undefined]} popupElement={{...}} containerWidth={{...}} animation={[undefined]} transitionName="slide-up" dropdownStyle={[undefined]} dropdownClassName="" direction={[undefined]} dropdownMatchSelectWidth={[undefined]} dropdownRender={[undefined]} dropdownAlign={[undefined]} getPopupContainer={[undefined]} empty={false} getTriggerDOMNode={[Function: getTriggerDOMNode]}>

在forms.py中：

expect(wrapper.find("select").length).toEqual(1)
expect(wrapper.find("option").length).toEqual(3)

,

您已经将所需的group_id密钥发送到 views.calendar 。 现在尝试将其添加到form.save

之前的表单中

尝试在view.py中进行这样的修改

def calendar(request,group_id):
instance = Calendar()

form = CalendarForm(request.POST or None,instance=instance)
if request.POST and form.is_valid():
    form.group=group_id
    form.save()
    return HttpResponseRedirect(reverse('cal:home'))
return render(request,'cal/form.html',{'form': form})

请注意，这可能会覆盖用户可以在CalendarForm上发布的内容，因此您应该考虑隐藏或使该文件 group_id 不可编辑， 而且这与我通常所做的略有不同，但应该可以 我还发布了一个适用于我的示例：

def calendar(request,group_id):
instance = Calendar()
form = CalendarForm(request.POST or None)
if request.POST and form.is_valid():
    instance = form.save(commit=False)
    instance.group = group_id
    instance.save()
    return HttpResponseRedirect(reverse('cal:home'))
return render(request,{'form': form})