views.py 文件源码

def form_valid(self, form):
        # We make sure to call the parent's form_valid() method because
        # it might do some processing (in the case of CreateView, it will
        # call form.save() for example).
        response = super(GeoTarget, self).form_valid(form)
        if self.request.is_ajax():

            cons_ids = []
            kwargs = {'state_cd': form.cleaned_data['state']}

            if form.cleaned_data['primary_only']:
                kwargs['is_primary'] = True

            # Get all constituent addresses in the state
            cons_addrs = ConstituentAddress.objects.filter(**kwargs)

            geojson = json.loads(form.cleaned_data['geojson'])

            if geojson['type'] == 'FeatureCollection':
                # todo: fetch number, but stick to 1st for now
                logger.debug('is FeatureCollection')
                geojson = geojson['features'][0]['geometry']

            # elif geojson['type'] not ['MultiPolygon', 'Polygon']:

            poly = GEOSGeometry(json.dumps(geojson))

            for con in cons_addrs:
               point = Point(y=con.latitude, x=con.longitude)
               if poly.contains(point):
                  cons_ids.append(con.cons_id)

            return JsonResponse(cons_ids, safe=False)
        else:
            return response