Question

我阅读并实施了Trying to using Nhibernate with Mono & SQLite - can't find System.Data.SQLite 但是，正如最后一条评论所说，这似乎不适用于NHibernate 3.1

错误是

HibernateException：中的IDbCommand和IDbConnection实现找不到程序集Mono.Data.Sqlite。确保程序集Mono.Data.Sqlite是[...可达...]

我在GAC中有Mono.Data.Sqlite 我已经尝试将“Mono.Data.Sqlite”和typeof(Mono.Data.Sqlite.SqliteConnection).Assembly.FullName都指定为程序集的名称

有没有人想过如何让这个工作？

Answer 1

Trying to using Nhibernate with Mono & SQLite - can't find System.Data.SQLite的答案存在问题。要使给定的构造函数（3个参数）起作用，需要首先加载有问题的程序集（Mono.Data.Sqlite）。

如果使用4参数基本构造函数，则此方法有效：

public class MonoSQLiteDriver : NHibernate.Driver.ReflectionBasedDriver  
{  
        public MonoSQLiteDriver() 
            : base(
            "Mono.Data.Sqlite",
            "Mono.Data.Sqlite",  
            "Mono.Data.Sqlite.SqliteConnection",  
            "Mono.Data.Sqlite.SqliteCommand")  
    {  
    }  

    public override bool UseNamedPrefixInParameter {  
        get {  
            return true;  
        }  
    }  

    public override bool UseNamedPrefixInSql {  
        get {  
            return true;  
        }  
    }  

    public override string NamedPrefix {  
        get {  
            return "@";  
        }  
    }  

    public override bool SupportsMultipleOpenReaders {  
        get {  
            return false;  
        }  
    }  
}

（尽管如此，最初的想法可归功于http://intellect.dk/post/Why-I-love-frameworks-with-lots-of-extension-points.aspx - 谢谢。）

如果您使用FluentNHibernate，那么您还需要：

public class MonoSQLiteConfiguration : PersistenceConfiguration<MonoSQLiteConfiguration>
{
    public static MonoSQLiteConfiguration Standard
    {
        get { return new MonoSQLiteConfiguration(); }
    }

    public MonoSQLiteConfiguration()
    {
        Driver<MonoSQLiteDriver>();
        Dialect<SQLiteDialect>();
        Raw("query.substitutions", "true=1;false=0");
    }

    public MonoSQLiteConfiguration InMemory()
    {
        Raw("connection.release_mode", "on_close");
        return ConnectionString(c => c
            .Is("Data Source=:memory:;Version=3;New=True;"));

    }

    public MonoSQLiteConfiguration UsingFile(string fileName)
    {
        return ConnectionString(c => c
            .Is(string.Format("Data Source={0};Version=3;New=True;", fileName)));
    }

    public MonoSQLiteConfiguration UsingFileWithPassword(string fileName, string password)
    {
        return ConnectionString(c => c
            .Is(string.Format("Data Source={0};Version=3;New=True;Password={1};", fileName, password)));
    }
}

到目前为止我没有遇到任何问题......

使用NHibernate和Mono.Data.SQLite

1 个答案: