djang xadmin 表单二级联动

class ProductPlugin(BaseAdminPlugin):
    def init_request(self, *args, **kwargs):
        path = self.request.get_full_path()
        # 只在添加或修改时启动插件
        if ‘products/add‘ in path or ‘products/update‘ in path:
            return True
        return False

    def get_media(self, media):
        # 引入自定义的js文件，列表中可以添加多个资源文件，一般是js和css
        media._js_lists.append([‘/static/product/admin.js‘])
        
        return media


# 注册插件
site.register_plugin(ProductPlugin, CreateAdminView)
site.register_plugin(ProductPlugin, UpdateAdminView)

def ProductAttrsList(request, cid):
    if not cid:
        return JsonResponse([])
    attrs = ProductAttr.objects.filter(category_id=cid).values()
    print(attrs)
    return JsonResponse(list(attrs), safe=False)

urlpatterns = [
    path(‘attrs/<int:cid>/‘, ProductAttrsList, name=‘attrslist‘),
]

$(‘#id_category‘).change(function(){
        var cid = $(this).val();
        console.log(‘/products/attrs/‘ + cid + ‘/‘);
        $.get(‘/products/attrs/‘ + cid + ‘/‘, function(res){
            console.log(res);
            var html = ‘‘;
            res.forEach(function(item, index){
                html += ‘<option value="‘+ item.id +‘">‘+ item.name +‘</option>‘
            })
            
            $(‘#id_product_attr_form‘).html(html);
        })
    })