我对cleaned_data 的工作方式有疑问。我想将cleaned_data 存储在会话中,以便稍后重新填充表单对象。问题是我的选择字段似乎存储了下拉列表的显示名称而不是实际值。例如:
<select name="dropdown_element">
<option value="1">Red</option>
<option value="2">Blue</option>
</select>
如果我选择 Red 并使用 form.cleaned_data['dropdown_element'] 我将获得显示名称 Red 而不是 1 的值。有没有办法获得值而不是标签?
编辑
看法:
def vehicle_add_fleet(request):
if request.POST:
fleet_form = FleetForm(request.POST, prefix='fleet')
count_form = CountForm(request.POST, prefix='count', label='# of Odometer Readings')
if fleet_form.is_valid() and count_form.is_valid():
request.session['add'] = {}
request.session['add']['fleet'] = fleet_form.cleaned_data
return HttpResponseRedirect('/vehicle/add/general/%s/' % (count_form.cleaned_data['count']))
else:
fleet_form = FleetForm(prefix='fleet')
count_form = CountForm(prefix='count', label='# of Odometer Readings')
return render_to_response('add/fleet.html', {'fleet_form': fleet_form, 'count_form': count_form})
形式:
class FleetForm(forms.models.ModelForm):
home_location = forms.ModelChoiceField(queryset=Location.objects.filter(home_only=True), required=False, label=_('Home Location'))
number = forms.IntegerField(max_value=99999, label=_('Fleet Number'))
ari_number = forms.IntegerField(max_value=999999, required=False, label=_('ARI Number'))
class Meta:
model = Fleet
exclude = ('status')
模型:
class Fleet(models.Model):
#One-to-Many
status = models.ForeignKey(Status, verbose_name=_('Status'), default=3)
pwgsc_spec_code = models.ForeignKey(PWGSCSpecCode, verbose_name=_('PWGSC Specification Code'))
current_location = models.ForeignKey(Location, related_name='fleet_current', blank=True, null=True, verbose_name=_('Current Location'))
home_location = models.ForeignKey(Location, related_name='fleet_home', blank=True, null=True, verbose_name=_('Home Location'))
#Fields
number = models.PositiveIntegerField(verbose_name=_('Fleet Number'))
pool_identifier = models.CharField(max_length=1, verbose_name=_('Pool Identifier'))
ari_number = models.PositiveIntegerField(blank=True, null=True, verbose_name=_('ARI Number'))
credit_card_number = models.CharField(max_length=16, blank=True, verbose_name=_('Credit Card Number'))
credit_card_expiry_date = models.DateField(blank=True, null=True, verbose_name=_('Credit Card Expiry Date'))
company_name = models.CharField(max_length=16, blank=True, verbose_name=_('Company Name'))
in_service_date = models.DateField(blank=True, null=True, verbose_name=_('In Service Date'))
reason = models.TextField(blank=True, verbose_name=_('Reason'))
class Meta:
verbose_name = _('Fleet')
verbose_name_plural = _('Fleets')
所以基本上我想将车队表单数据(cleaned_data)添加到会话中。但是,当我到达要保存车队表单的页面时,我尝试填充它:
def vehicle_add(request):
#save non-partial forms
form = FleetForm(request.session['add']['fleet'])
if form.is_valid():
return HttpResponse('valid')
else:
return HttpResponse('invalid')
我在 form.is_valid() 行上得到一个错误:
/vehicle/add/fleet/ int() 参数的 TypeError 必须是字符串或数字
我目前的理论是fleet_form.cleaned_data[“home_location”](例如)存储显示值而不是值字段中的整数
其他信息:
我正在使用 django 1.1 并升级到 django 1.3。在所有其他示例中,我看到人们似乎获得了下拉值而不是下拉显示值。希望这是足够的信息!
谢谢你的帮助