通过自定义Admin的模板文件实现省市区的三级联动.要求创建记录时,根据省>市>区的顺序选择依次显示对应数据.
修改记录时默认显示已存在的数据.
Model
class Member(models.Model): name = models.CharField(max_length=100, verbose_name='姓名') province = models.CharField(max_length=100, null=True, blank=True, verbose_name='省份') city = models.CharField(max_length=100, null=True, blank=True, verbose_name='城市') district = models.CharField(max_length=100, null=True, blank=True, verbose_name='区/县') class Meta: verbose_name_plural = verbose_name = '人员' def __str__(self): return self.name
View和url
# views LOCATION = {'吉林省': {'长春市': ['南关区', '朝阳区', '二道区', '绿园区']}} def choose_province(request): province = list(LOCATION.keys()) return JsonResponse(province, safe=False) def choose_city(request): province = request.GET.get('p') cities = list(LOCATION[province].keys()) return JsonResponse(cities, safe=False) def choose_district(request): province = request.GET.get('p') city = request.GET.get('c') districts = LOCATION[province][city] return JsonResponse(districts, safe=False) # urls from person.views import choose_province, choose_city, choose_district urlpatterns = [ path('province/', choose_province), path('city/', choose_city), path('district/', choose_district), path('admin/', admin.site.urls), ]
Admin
class MemberForm(forms.ModelForm): class Meta: widgets = { 'province': forms.Select(), 'city': forms.Select(), 'district': forms.Select() } @admin.register(Member) class MemberAdmin(admin.ModelAdmin): form = MemberForm fields = ('name', ('province', 'city', 'district')) list_display = ('name', 'province', 'city', 'district') change_form_template = 'area.html'
这里需要写一个form将省市区这三个字段显示为单选框.
模板文件
找到django源码中的change_form.html(django/contrib/admin/templates/admin/)文件,复制到app下templates目录中.
在admin中指定自定义的模板文件 change_form_template = 'area.html'
{% block admin_change_form_document_ready %} <script type="text/javascript" id="django-admin-form-add-constants" src="{% static 'admin/js/change_form.js' %}" {% if adminform and add %} data-model-name="{{ opts.model_name }}" {% endif %}> </script> <script type="text/javascript"> (function($) { $('#id_city').change(function() { let p_id = $('#id_province').val(); let c_id = $('#id_city').val(); $.get('/district/', {"p": p_id, "c": c_id }, function(a_info) { var area_info = $('#id_district').empty().append('<option value>' + '---------' + '</option>'); $.each(a_info, function(i, area) { area_info.append('<option value="' + area + '">' + area + '</option>') }); {% if change %} $("#id_district").find("option:contains({{ original.district }})").attr('selected', true); {% endif %} }); }); $('#id_province').change(function() { let p_id = $('#id_province').val(); $.get('/city/', { 'p': p_id }, function(c_info) { var city_info = $('#id_city').empty().append('<option value>' + '---------' + '</option>'); $.each(c_info, function(i, city) { city_info.append('<option value="' + city + '">' + city + '</option>') }); {% if change %} $("#id_city").find("option:contains({{ original.city }})").attr('selected', true); $("#id_city").trigger("change"); {% endif %} }); }); $.get('/province/', function(p_info) { var province_info = $('#id_province').empty().append('<option value>' + '---------' + '</option>'); $.each(p_info, function(i, province) { province_info.append('<option value="' + province + '">' + province + '</option>') }); {% if change %} $("#id_province").find("option:contains({{ original.province }})").attr('selected', true); $("#id_province").trigger("change"); {% endif %} }); })(django.jQuery); </script>
参考: https://www.jb51.net/article/142409.htm
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