Question

我的Django学习带我到了Forms。我已经能够使用我正在阅读的书中的信息创建一个简单的表单。我还根据我创建的模型创建了一个表单。我遇到的问题是我试图在模板中创建自己的格式，并且由于某种原因标签信息不在formset中。我对使用默认的显示方式感到有点困惑，即{{form}}有这个信息。

我有什么;

adminforms.py

class NewsForm(ModelForm):
    class Meta:
        model = News_Article
        exclude = ('news_datetime_submitted', 'news_yearmonth', )
        labels = {
            'news_title': _('Enter News Title'),
        }
        help_texts = {
            'news_title': _('Enter a title to give a short description of what the news is.'),
        }
        error_messages = {
            'news_title': {
                'max_length': _("News title is too long."),
            },
        }

view.py

def create(request, dataset):
    if dataset not in ['news', 'announcement']:
        # change this to the siteadmin page if authenticated and have permissions, otherwise go to home
        return HttpResponseRedirect(reverse('pages'))
    rDict = {}
    # if this is a POST request we need to process the form data
    if request.method == 'POST':
        # create a form instance and populate it with data from the request:
        if dataset == "news":
            form = NewsForm(request.POST)
        elif dataset == "announcement":
            form = AnnouncementForm(request.POST)
        # check whether it's valid:
        if form.is_valid():
            # process the data in form.cleaned_data as required
            # ...
            # redirect to a new URL:
            return HttpResponseRedirect('/home/')
        else:
            pass

    # if a GET (or any other method) we'll create a blank form
    else:
        announcement = get_announcement()
        if not announcement == None:
            rDict['announcement'] = announcement
        if dataset == "news":
            rDict['formset'] = NewsForm()
            rDict['branding'] = {'heading': 'Create News Item', 'breadcrumb': 'Create News', 'dataset': 'create/' + dataset + '/'}
        elif dataset == "announcement":
            rDict['form'] = AnnouncementForm()
            rDict['branding'] = {'heading': 'Create Announcement', 'breadcrumb': 'Create Announcement', 'dataset': 'create/' + dataset + '/'}
        rDict['sitenav'] = clean_url(request.path, ['"', "'"])
        rDict['menu'] = Menu.objects.all().order_by('menu_position')
        pdb.set_trace()
        return render(request, 'en/public/admin/admin_create.html', rDict)

模板

<form action="/siteadmin/{{ branding.dataset }}" method="post">
    {% csrf_token %}
    {{ formset.management_form }}
    {% for form in formset %}
        {% for field in form %}
            {{ field.label_tag }} {{ field }}
        {% endfor %}
    {% endfor %}
    <input type="submit" value="Submit" />
</form>

由于某种原因，jut获取表单字段而没有标签信息。注：模板文本我从格式集上的Django文档中获取。

我已经查看了返回的数据并且没有标签信息，但它只适用于{{form}}？有点困惑。

(Pdb) rDict['formset']
<NewsForm bound=False, valid=Unknown, fields=(news_title;news_text;news_active)>

先谢谢你们。

韦恩

Answer 1

您正在添加一个名为“formset”的上下文变量，它不是一个formset，它是一个表单：rDict['formset'] = NewsForm()。

因此，当将此上下文变量传递给模板时，使用{% for form in formset %}进行迭代会产生误导效果，即创建名为form的变量，该变量实际上是一个表单字段。尝试正确命名（如果你真的想要一个formset，按照描述here创建一个），看看事情是否有意义。

Django缺少标签

1 个答案: