fix: 解决 MariaDB 数据库同步失败的问题 (#5605)

Refs #5591

backend/app/service/database_mysql.go

@@ -196,6 +196,9 @@ func (u *MysqlService) LoadFromRemote(req dto.MysqlLoadDB) error {
 		for i := 0; i < len(databases); i++ {
 			if strings.EqualFold(databases[i].Name, data.Name) && strings.EqualFold(databases[i].MysqlName, data.MysqlName) {
 				hasOld = true
+				if databases[i].IsDelete {
+					_ = mysqlRepo.Update(databases[i].ID, map[string]interface{}{"is_delete": false})
+				}
 				deleteList = append(deleteList[:i], deleteList[i+1:]...)
 				break
 			}

backend/app/service/database_postgresql.go

@@ -222,6 +222,9 @@ func (u *PostgresqlService) LoadFromRemote(database string) error {
 		for i := 0; i < len(databases); i++ {
 			if strings.EqualFold(databases[i].Name, data.Name) && strings.EqualFold(databases[i].PostgresqlName, data.PostgresqlName) {
 				hasOld = true
+				if databases[i].IsDelete {
+					_ = postgresqlRepo.Update(databases[i].ID, map[string]interface{}{"is_delete": false})
+				}
 				deleteList = append(deleteList[:i], deleteList[i+1:]...)
 				break
 			}

backend/utils/mysql/client/local.go

@@ -300,7 +300,10 @@ func (r *Local) SyncDB(version string) ([]SyncDBInfo, error) {
 		}
 		userLines, err := r.ExecSQLForRows(fmt.Sprintf("select user,host from mysql.db where db = '%s'", parts[0]), 300)
 		if err != nil {
-			return datas, err
+			global.LOG.Debugf("sync user of db %s failed, err: %v", parts[0], err)
+			dataItem.Permission = "%"
+			datas = append(datas, dataItem)
+			continue
 		}
 
 		var permissionItem []string

backend/utils/mysql/client/remote.go

@@ -332,7 +332,10 @@ func (r *Remote) SyncDB(version string) ([]SyncDBInfo, error) {
 		}
 		userRows, err := r.Client.Query("select user,host from mysql.db where db = ?", dbName)
 		if err != nil {
-			return datas, err
+			global.LOG.Debugf("sync user of db %s failed, err: %v", dbName, err)
+			dataItem.Permission = "%"
+			datas = append(datas, dataItem)
+			continue
 		}
 
 		var permissionItem []string