优化分类查询逻辑提升效率

- 重构了获取子分类的查询逻辑，减少了数据库查询次数
- 使用批量查询替代了之前的循环查询，显著提高了性能
- 优化了SQL语句，并使用参数化查询增强了安全性

models/target.go

@@ -427,28 +427,34 @@ func GetEdbdataClassify(userId int64) (items []*EdbdataClassifyList, err error)
 	}
 	classifyLen := len(newItems)
 
+	// 获取子集分类
+	var allChildItems []*EdbdataClassify
+	if userId > 0 {
+		userClassifyList, _ := GetManualUserClassify(int(userId))
+		var userIdArr []int
+		for _, v := range userClassifyList {
+			userIdArr = append(userIdArr, v.ClassifyId)
+		}
+		num := len(userClassifyList)
+		if num > 0 {
+			childSql := "SELECT a.classify_id,a.classify_name,a.parent_id FROM edbdata_classify AS a WHERE a.is_show=1 and a.classify_id IN(" + utils.GetOrmInReplace(num) + ") ORDER BY a.create_time ASC "
+			_, err = o.Raw(childSql, userIdArr).QueryRows(&allChildItems)
+		}
+	} else {
+		childSql := "SELECT classify_id,classify_name,parent_id FROM edbdata_classify WHERE is_show=1 ORDER BY create_time ASC "
+		_, err = o.Raw(childSql).QueryRows(&allChildItems)
+	}
+	if err != nil {
+		return
+	}
+
 	for i := 0; i < classifyLen; i++ {
 		var childItems []*EdbdataClassify
 		parentId := newItems[i].ClassifyId
-		childSql := ``
-		if userId > 0 {
-			userClassifyList, _ := GetManualUserClassify(int(userId))
-			var userIdArr []string
-			for _, v := range userClassifyList {
-				userIdArr = append(userIdArr, strconv.Itoa(v.ClassifyId))
-			}
-
-			userIdStr := strings.Join(userIdArr, ",")
-			if userIdStr != "" {
-				childSql = "SELECT a.classify_id,a.classify_name,a.parent_id FROM edbdata_classify AS a WHERE a.is_show=1 and a.classify_id IN(" + userIdStr + ") AND parent_id=? ORDER BY a.create_time ASC "
-				_, err = o.Raw(childSql, parentId).QueryRows(&childItems)
+		for _, v := range allChildItems {
+			if v.ParentId == parentId {
+				childItems = append(childItems, v)
 			}
-		} else {
-			childSql = "SELECT classify_id,classify_name,parent_id FROM edbdata_classify WHERE is_show=1 and parent_id=? ORDER BY create_time ASC "
-			_, err = o.Raw(childSql, parentId).QueryRows(&childItems)
-		}
-		if err != nil {
-			return
 		}
 		newItems[i].Child = childItems
 	}