SubSonic 和非默认连接字符串问题

发布于 2024-08-12 08:23:44 字数 802 浏览 4 评论 0原文

我在程序中遇到了错误，因为 SubSonic3 在

SingleOrDefault(ByVal expression As System.Linq.Expressions.Expression(Of System.Func(Of Company.filter, Boolean)), ByVal connectionString As String, ByVal providerName As String)

In Subsonic 源中，Database.cs 第 323 行返回带有默认连接字符串的记录：

instance = Activator.CreateInstance<T>();

我认为这就是我的情况出现问题的原因。它使用默认构造函数创建实例，然后将其作为结果返回，这就是我们丢失自定义连接字符串的地方。

就我个人而言，我通过在 SingleOrDefault 函数中向 ActiveRecord.tt 模板添加 2 行来修复此问题，该函数具有 connectionString 参数：

            single._db=new <#=Namespace#>.<#=DatabaseName#>DB(connectionString, providerName);
            single._repo = new SubSonicRepository<<#=tbl.ClassName#>>(single._db);

但我认为您应该更深入地检查这个问题，Rob :)

原文

I encountered bug in my programm because of SubSonic3 returns records with default connection string in

SingleOrDefault(ByVal expression As System.Linq.Expressions.Expression(Of System.Func(Of Company.filter, Boolean)), ByVal connectionString As String, ByVal providerName As String)

In Subsonic sources, Database.cs line 323:

instance = Activator.CreateInstance<T>();

I think that was the cause of problem in my case. It creates instance with default constructor and then returns it as a result, that's where we loose custom connection string.

Personally I fixed it with adding 2 lines to ActiveRecord.tt template, in SingleOrDefault function, which has connectionString argument:

            single._db=new <#=Namespace#>.<#=DatabaseName#>DB(connectionString, providerName);
            single._repo = new SubSonicRepository<<#=tbl.ClassName#>>(single._db);

But I think you should examine this problem deeper, Rob :)

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