0

我正在尝试制作一个链式选择菜单，我有这个模型：

from django.db import models

class Health_plan(models.Model):
    name = models.CharField(max_length=15)

class Doctors_list(models.Model):
    name = models.CharField(max_length=30)
    specialty = models.CharField(max_length=15)
    health_plans = models.ManyToManyField(Health_plan, related_name="doctors")
    location = models.CharField(max_length=15)

    def __unicode__(self):
        return self.name

这是我的forms.py：

class SpecForm(ModelForm):
    a = Doctors_list.objects.values_list('specialty', flat=True)
    unique = [('---------------','---------------')] + [(i,i) for i in set(a)]
    specialty = forms.ChoiceField(choices=unique)
    class Meta:
        model = Doctors_list

class HealthForm(ModelForm):
    hplan = ChainedForeignKey(
        Health_plan, 
        chained_field="specialty",
        chained_model_field="specialty", 
        show_all=False, 
        auto_choose=True
    )

我的urls.py：

from django.conf.urls import patterns, include, url
from testApp.views import spec_form
from testApp.views import health_form 
from django.contrib import admin
admin.autodiscover()

urlpatterns = patterns('',
    # Examples:
    url(r'^$', 'Medbook.views.home', name='home'),
    # url(r'^Medbook/', include('Medbook.foo.urls')),
    url(r'^admin/doc/', include('django.contrib.admindocs.urls')),
    url(r'^admin/', include(admin.site.urls)),
    url(r'^hello/$',  spec_form, health_form),
)

我的views.py：

from django.shortcuts import render_to_response 
from testApp.forms import SpecForm
from testApp.forms import HealthForm

def spec_form (request):
    if request.method == 'POST':
        form = SpecForm(request.POST)
        if form.is_valid():
            form.save()
    else:
        form = SpecForm()
    return render_to_response('hello.html', {'form':form})

def health_form (request):
     if request.method == 'POST':
        form = HealthForm(request.POST)
        if form.is_valid():
            form.save()
    else:
        form = SpecForm()
    return render_to_response('hello.html', {'form':form})

现在我得到的错误是'function' object is not iterable当我访问网页时。我是 Django 新手，我觉得这很棘手。用户必须选择一个专业，然后应该出现涵盖该专业的 health_plans。

health_plans 与医生有多对多关系。当一个人选择一个专业时，脚本应该检查哪些医生属于该专业并检索这些医生持有的所有健康计划。

我希望我说清楚了，因为我的代码不是。

任何帮助表示感谢

编辑：堆栈跟踪

Internal Server Error: /hello/ Traceback (most recent call last): File "C:\Python27\lib\site-packages\django\core\handlers\base.py", line 103, in get_response resolver_match = resolver.resolve(request.path_info) File "C:\Python27\lib\site-packages\django\core\urlresolvers.py", line 321, in resolve sub_match = pattern.resolve(new_path) File "C:\Python27\lib\site-packages\django\core\urlresolvers.py", line 221, in resolve kwargs.update(self.default_args) TypeError: 'function' object is not iterable [08/May/2013 19:30:45] "GET /hello/ HTTP/1.1" 500 62490

4

1 回答 1

0

改变：

url(r'^hello/$', spec_form, health_form)至url(r'^hello/$', spec_form)

此外，在模型中：

class Health_plan(models.Model):
    name = models.CharField(max_length=15)
    def __unicode__(self):
        return "%s"%(self.name)
于 2013-05-08T19:37:29.167 回答