Question

我有以下型号：

class Usage(models.Model):

    region = models.ForeignKey(Region)
    territory = models.ForeignKey(Territory)
    usage_in_month = models.ForeignKey(UsageInMonth)

    def __unicode__(self):
        return '%s' % self.region

我有一个模型表单，我尝试给出project_form的名称，类和id：

self.fields['usage_in_month'].widget.attrs['onchange'] = "Dajaxice.projects.update_usage_in_month(Dajax.process,{'option':this.value, 'current':this.id, 'form': $('project_form').serialize(true)})"

这通过ajax.py包含：

@dajaxice_register
def update_usage_in_month(request, option, current, form):
    dajax = Dajax()
    form = ProjectForm(form)

    # As the first ID has no prefix current is shorter
    if current[:40] == 'id_usages-tvusage-content_type-object_id':
        current_short = current[:42]
        current_usage_in_month = '#' + current_short + '-usage_in_month'
        current_suggested_rate = '#' + current_short + '-suggested_rate'

    else:
        # Current is longer for other IDs
        current_short = current[:82]
        current_usage_in_month = '#' + current_short + '-usage_in_month'
        current_suggested_rate = '#' + current_short + '-suggested_rate'

    cpa_rate = UsageInMonth.objects.get(id=option).cpa_rate
    dajax.assign(current_suggested_rate,'value',cpa_rate)
    return dajax.json()

我对此没有任何问题。我的问题是在返回dajax.json（）之前访问表单，以便从中检索值。我尝试过form.cleaned_data ['territory']以及form.cleaned_data.get（'territory'）。我已经将问题跟踪到通过表单传递到视图中的表单，因为它似乎是空白的，所以

self.fields['usage_in_month'].widget.attrs['onchange'] = "Dajaxice.projects.update_usage_in_month(Dajax.process,{'option':this.value, 'current':this.id, 'form': $('project_form').serialize(true)})"

似乎无法正常工作

我想要做的就是检索一个字段的值，而不是实际传递整个表单，但这是我似乎能够获得我想要的数据的唯一方法。还有更好的方法吗？

使用django dajax从表单中检索值

0 个答案: