Django ModelForm有一个隐藏的输入

Question

所以我有我的TagStatus模型.我正在尝试为它制作一个ModelForm.但是,我的表单要求使用{{tag.name}}填充隐藏的输入.我一直在查看文档,我不知道如何使标记字段成为隐藏的输入.也许ModelForm不是要走的路？

models.py:

class TagStatus(models.Model):
    user = models.ForeignKey(User, null=True, unique=True)
    status = models.CharField(max_length=2, choices=tag_statuses)
    tag = models.ForeignKey(Tag, null=True, blank=True)

    def __unicode__(self):
        return self.status

    def save(self, *args, **kwargs):
        super(TagStatus, self).save(*args, **kwargs)

class TagStatusForm(modelForm):
    class Meta:
        model = TagStatus
        fields = ('status','tag') 
        widgets = {
             'select': Select,
             'tag': ???
        }

django views.py:

@login_required
def tags(request):
    all_tags = Tag.objects.all()
    context = base_context(request)
    if request.method == 'POST':
        if 'status_check' in request.POST:
            status_form = TagStatusForm(request.POST)
            #if request.is_ajax():
            if status_form.is_valid():
                status_form.save()
                response = simplejson.dumps({"status": "Successfully changed status"})
            else:
                response = simplejson.dumps({"status": "Error"})
                return HttpResponse (response, mimetype='application/json')
    status_form = TagStatusForm()
    context['status_form'] = status_form
    context['all_tags'] = all_tags
    return render_to_response('tags/tags.html', context, context_instance=RequestContext(request))

模板:

{% for tag in all_tags %}
....
<form class="nice" id="status-form" method="POST" action="">
     {% csrf_token %}
      <input type="hidden" name="status_check" />
      <input type='hidden' name="tag" value="{{ tag.name }}" />
     {{ status_form.status }}
</form>
...
{% endfor %}

我将如何通过django ModelForm进行隐藏输入,然后通过模板填充它？

Answer 1

要使ModelField中的字段成为隐藏字段,请使用HiddenInput小部件.ModelForm为所有字段使用合理的默认窗口小部件,您只需在构造对象时覆盖它.

class TagStatusForm(forms.ModelForm):
    class Meta:
        model = TagStatus
        widgets = {'tag': forms.HiddenInput()}

Answer 2

在Django中有三种可能的方式(AFAIK)渲染隐藏字段 -

1.您可以正常声明一个字段,forms.py但在模板html文件中使用{{ form.field.as_hidden }}

2.在forms.py直接使用隐藏输入小部件.

class MyForm(forms.Form):
    hidden_field = forms.CharField(widget=forms.HiddenInput())

将字段设为隐藏输入后,可以在模板中填充字段的值.现在您的隐藏字段已准备好进行渲染.

3.常规表单等效(感谢@Modelesq共享此块).这里没有涉及Django.更改在HTML模板级别完成.<input type="hidden" name="tag" value="{{ tag.name }}" />