fix:回退公共query

lxDb/sql.go

@@ -230,8 +230,7 @@ func SqlQuery(tx *gorm.DB, sql string, list interface{}, q *PaginationQuery, par
 			} else if strings.HasPrefix(where, " OR ") {
 				where = strings.Replace(where, " OR ", " WHERE ", 1)
 				builder.WriteString(where)
-			} else if where != "" {
-				builder.WriteString(" WHERE ")
+			} else {
 				builder.WriteString(where)
 			}
 		}
@@ -261,14 +260,13 @@ func SqlQuery(tx *gorm.DB, sql string, list interface{}, q *PaginationQuery, par
 			if len(q.Summary) != 0 {
 				tx = tx.Offset(-1) // 需要去除offset, 否则结果可能为空, 注意: 设置0不起作用.
 				var summary = make(map[string]interface{})
+				//tx.Order("") // FIXME: 怎么去掉order by, sum是不需要order by的, 影响性能.
+				//tx.Select(q.SummarySql).Take(&summary) // 不适合rawsql?
 
-				// 安全构建汇总查询 - 使用参数化查询
-				summarySQL := "SELECT " + strings.Join(q.SummarySql, ", ") + " FROM (" + sql2 + ") ssss"
-				if err := tx.Raw(summarySQL, params...).Take(&summary).Error; err != nil {
-					return err
-				}
+				tx.Raw("SELECT "+strings.Join(q.SummarySql, ", ")+" FROM ("+sql2+") ssss", params...).Take(&summary)
 
 				// []byte 转 string. 不太合理, 应该返回int或float
+
 				for k, v := range summary {
 					if bs, ok := v.([]byte); ok {
 						summary[k] = string(bs)
@@ -292,19 +290,17 @@ func SqlQuery(tx *gorm.DB, sql string, list interface{}, q *PaginationQuery, par
 		if q.Limit > 0 {
 			if q.Offset > 0 {
 				offset := (q.Offset - 1) * q.Limit
-				builder.WriteString(" LIMIT ?, ?")
-				params = append(params, offset, q.Limit)
+				s := fmt.Sprintf(" LIMIT %d, %d", offset, q.Limit)
+				builder.WriteString(s)
 			} else {
-				builder.WriteString(" LIMIT ?")
-				params = append(params, q.Limit)
+				s := fmt.Sprintf(" LIMIT %d", q.Limit)
+				builder.WriteString(s)
 			}
 		}
 	}
 
 	// 执行最终查询 - 使用参数化查询
-	if err := tx.Raw(builder.String(), params...).Find(list).Error; err != nil {
-		return err
-	}
+	tx.Raw(builder.String(), params...).Find(list)
 
 	return
 }