標籤：改進 setting names ima 載入 省市區 from on() 字典
使用AjaxSTATIC_URL = ‘/static/‘STATICFILES_DIRS = [ os.path.join(BASE_DIR, ‘static‘),]在models.py中定義模型
class AreaInfo(models.Model): aid = models.IntegerField(primary_key=True) atitle = models.CharField(max_length=20) aPArea = models.ForeignKey(‘AreaInfo‘, null=True)產生遷移
python manage.py makemigrationspython manage.py migrate通過workbench向表中填充樣本資料
from django.shortcuts import renderfrom django.http import JsonResponsefrom models import AreaInfodef index(request): return render(request, ‘ct1/index.html‘)def getArea1(request): list = AreaInfo.objects.filter(aPArea__isnull=True) list2 = [] for a in list: list2.append([a.aid, a.atitle]) return JsonResponse({‘data‘: list2})def getArea2(request, pid): list = AreaInfo.objects.filter(aPArea_id=pid) list2 = [] for a in list: list2.append({‘id‘: a.aid, ‘title‘: a.atitle}) return JsonResponse({‘data‘: list2}) 在urls.py中配置urlconf
from django.conf.urls import urlfrom . import viewsurlpatterns = [ url(r‘^$‘, views.index), url(r‘^area1/$‘, views.getArea1), url(r‘^([0-9]+)/$‘, views.getArea2),]主urls.py中包含此應用的url
from django.conf.urls import include, urlfrom django.contrib import adminurlpatterns = [ url(r‘^‘, include(‘ct1.urls‘, namespace=‘ct1‘)), url(r‘^admin/‘, include(admin.site.urls)),]定義模板index.html
‘DIRS‘: [os.path.join(BASE_DIR, ‘templates‘)],
<!DOCTYPE html><html><head> <title>省市區列表</title></head><body><select id="pro"> <option value="">請選擇省</option></select><select id="city"> <option value="">請選擇市</option></select><select id="dis"> <option value="">請選擇區縣</option></select></body></html>在模板中引入jquery檔案
<script type="text/javascript" src="static/ct1/js/jquery-1.12.4.min.js"></script>編寫js代碼
<script type="text/javascript"> $(function(){ $.get(‘area1/‘,function(dic) { pro=$(‘#pro‘) $.each(dic.data,function(index,item){ pro.append(‘<option value=‘+item[0]+‘>‘+item[1]+‘</option>‘); }) }); $(‘#pro‘).change(function(){ $.post($(this).val()+‘/‘,function(dic){ city=$(‘#city‘); city.empty().append(‘<option value="">請選擇市</option>‘); $.each(dic.data,function(index,item){ city.append(‘<option value=‘+item.id+‘>‘+item.title+‘</option>‘); }) }); }); $(‘#city‘).change(function(){ $.post($(this).val()+‘/‘,function(dic){ dis=$(‘#dis‘); dis.empty().append(‘<option value="">請選擇區縣</option>‘); $.each(dic.data,function(index,item){ dis.append(‘<option value=‘+item.id+‘>‘+item.title+‘</option>‘); }) }) }); }); </script>
django之使用jquery完成ajax
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