拦截分类参数不得为空

service/query/optimum_query.go

 package query
 
 import (
+	"errors"
 	"github.com/gin-gonic/gin"
 	"gopkg.in/olivere/elastic.v5"
 	"search_server/pkg/common"
@@ -30,6 +31,11 @@ func GetOptimumAttrQuery(ctx *gin.Context,REQUEST_ATTR *map[string][]string,type
 	if class_id2 != "" {
 		query.Must(elastic.NewTermQuery("class_id2",class_id2))
 	}
+
+	if class_id1 == "" && class_id2 == "" {
+		return "",errors.New("分类参数不得为空")
+	}
+
 	if ctx.Request.FormValue("avail_rank") == "1" { //只显示有货
 		query.Must(elastic.NewRangeQuery("stock").Gt(0))
 	}