url(r'dataroomselect',dataroomselect),url(r'cabinetselect(\d+)', cabinetselect)

from django.http import JsonResponse
#机房select
def dataroomselect(request):dataroomList = Dataroom.objects.all()list1 = []for item in dataroomList:list1.append([item.basemodel_ptr_id,item.DataroomName])print(list1)return JsonResponse({'data': list1 })
#机柜select
def cabinetselect(request,pid):print(pid)cabinetList = Cabinet.objects.filter(DataRoomID=pid)list1 = []for item in cabinetList:list1.append([item.basemodel_ptr_id,item.CabinetName])return JsonResponse({'data': list1})

                         <div class="span4 field-box"><label>所属机房:</label><div class="ui-select span4"><select id="dataroomselect"><option value="">请选择机房</option></select></div></div><div class="span4 field-box"><label>所属机柜:</label><div class="ui-select span4"><select id="cabinetselect"><option value="">请选择机柜</option></select></div></div>            

 <script>$(function () {//获取所有机房$.get('/user/dataroomselect', function (dic) {pro = $('#dataroomselect');$.each(dic.data, function (index, item) {pro.append('<option value=' + item[0] + '>' + item[1] + '</option>');})});//获取所选机柜$('#dataroomselect').change(function () {$.get('/user/cabinetselect' + $(this).val(), function (dict) {city = $('#cabinetselect');city.empty().append('<option value="">请选择机柜</option>');$.each(dict.data, function (index, item) {city.append('<option value=' + item[0] + '>' + item[1] + '</option>');})});});})</script>

class ImportForm(forms.Form):Device_type_list = ((1, "服务器"),(2, "网络设备"),(3, "安全设备"),(4, "存储设备"))#固定下拉选项，Device_type为post值，widget为下拉内容，下同。device_type = forms.IntegerField(widget = forms.Select(choices=Device_type_list))#动态不定下拉选项Dataroom_list = forms.IntegerField(widget=forms.Select())def __init__(self,*args,**kwargs):super(ImportForm,self).__init__(*args,**kwargs)#查询数据库获取下拉内容，根据主键basemodel_ptr_id查询获取name字段。并赋值给选项self.fields['Dataroom_list'].widget.choices = Dataroom.objects.all().values_list('basemodel_ptr_id','DataroomName')class CabinetSelect(forms.Form):# 机柜动态不定下拉选项Cabinet_list = forms.IntegerField(widget=forms.Select())def __init__(self, *args, **kwargs):super(CabinetSelect, self).__init__(*args, **kwargs)# 查询数据库获取下拉内容，根据主键basemodel_ptr_id查询获取name字段。并赋值给选项self.fields['Cabinet_list'].widget.choices = Cabinet.objects.all().values_list('basemodel_ptr_id', 'CabinetName')

def DeviceAdd(request):obj = ImportForm(request.POST)if Dataroom.objects.all() and Cabinet.objects.all():if request.method == "POST" and request.POST:s.DataRoomID = request.POST["Dataroom_list"]s.DataRoom = Dataroom.objects.get(basemodel_ptr_id=s.DataRoomID).DataroomNames.CabinetID = request.POST["Cabinet_list"]s.Cabinetname = Cabinet.objects.get(basemodel_ptr_id=s.CabinetID).CabinetName           return render_to_response("DeviceAdd.html",locals())

<div class="span4 field-box"><label>所属机房:</label><div class="ui-select span4"><p>{{ obj.Dataroom_list }}</p></div>
</div><div class="span4 field-box"><label>机柜号:</label><div class="ui-select span4"><p>{{ cabinetselect.Cabinet_list }}</p></div>
</div>