feat: 实现本地远程数据库切换

backend/app/repo/databse_mysql.go

@@ -13,6 +13,7 @@ type MysqlRepo struct{}
 type IMysqlRepo interface {
 	Get(opts ...DBOption) (model.DatabaseMysql, error)
 	WithByMysqlName(mysqlName string) DBOption
+	WithByFrom(from string) DBOption
 	List(opts ...DBOption) ([]model.DatabaseMysql, error)
 	Page(limit, offset int, opts ...DBOption) (int64, []model.DatabaseMysql, error)
 	Create(ctx context.Context, mysql *model.DatabaseMysql) error
@@ -86,3 +87,12 @@ func (u *MysqlRepo) WithByMysqlName(mysqlName string) DBOption {
 		return g.Where("mysql_name = ?", mysqlName)
 	}
 }
+
+func (u *MysqlRepo) WithByFrom(from string) DBOption {
+	return func(g *gorm.DB) *gorm.DB {
+		if len(from) != 0 {
+			return g.Where("`from` = ?", from)
+		}
+		return g
+	}
+}