Question

我尝试TDD使用SubSonic 2.1，MySQL和C＃，当我使用下面的代码测试更新现有记录时，

public void Test2()
{
    User.Insert("jmarcus1", "jmarcus1", "jackass", "marcus", 3, false);
    User users = new User();
    int ulevel = 1;
    User.Update(2, "jmarcus1", "jmarcus1", "jackass", "marcus", ulevel, false);
    Assert.AreEqual(1, users.Ulevel);
}

以下

------ Test started: Assembly: SalMan.dll ------

Starting the MbUnit Test Execution
Exploring SalMan, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
MbUnit 2.4.2.130 Addin
Found 3 tests
[success] TestFixture1.Test
[success] TestFixture1.Test1
[failure] TestFixture1.Test2
TestCase 'TestFixture1.Test2'
failed: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE `userid` = 1; SELECT 1 AS id' at line 1
    MySql.Data.MySqlClient.MySqlException
    Message: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE `userid` = 1; SELECT 1 AS id' at line 1
    Source: MySql.Data
    StackTrace:
    at MySql.Data.MySqlClient.MySqlStream.OpenPacket()
    at MySql.Data.MySqlClient.NativeDriver.ReadResult(UInt64& affectedRows, Int64& lastInsertId)
    at MySql.Data.MySqlClient.MySqlDataReader.GetResultSet()
    at MySql.Data.MySqlClient.MySqlDataReader.NextResult()
    at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader(CommandBehavior behavior)
    at MySql.Data.MySqlClient.MySqlCommand.ExecuteScalar()
    C:\svn\subsonicproject\trunk\SubSonic\DataProviders\MySqlDataProvider.cs(280,0): at SubSonic.MySqlDataProvider.ExecuteScalar(QueryCommand qry)
    C:\svn\subsonicproject\trunk\SubSonic\DataProviders\DataService.cs(533,0): at SubSonic.DataService.ExecuteScalar(QueryCommand cmd)
    C:\svn\subsonicproject\trunk\SubSonic\ActiveRecord\ActiveRecord.cs(182,0): at SubSonic.ActiveRecord`1.Save(String userName)
    D:\My Documents\Visual Studio 2008\Projects\SalMan\SalMan\Generated\User.cs(352,0): at Salman.User.Update(Int32 varUserid, String varUsername, String varPassword, String varFname, String varLname, Int32 varUlevel, Boolean varStatus)
    D:\My Documents\Visual Studio 2008\Projects\SalMan\SalMan\Tests\TestFixture1.cs(40,0): at salman.TestFixture1.Test2()

[reports] generating HTML report
TestResults: file:///C:/Documents%20and%20Settings/*****************/Application%20Data/MbUnit/Reports/SalMan.Tests.html

2 passed, 1 failed, 0 skipped, took 7.66 seconds.

有没有人有解决方法呢？

Answer 1

在我看来，你的args已经失灵了。 PK应该是第一件事 - 你确定他们排队正确吗？

您使用的是ActiveRecord吗？如果是这样 - 你试过这个：

User u=new User();
u.UserName("jmarcus1");
u.Name="jackass"
u.Ulevel=1;
...
u.Save();

User u=new User("jmarcus1");
u.UILevel=2;
u.Save();

Answer 2

显然，根据Robs上面的优秀建议，解决方案是

User u = User.FetchByID(2);
u.Ulevel = ulevel;
u.save();

我不太确定上面的代码段会在您指定之前用于更新您想要更新的记录。

我对Rob的问题是，为什么“u.Update（2，”jmarcus“，......”给出错误以上？

如何使用SubSonic和MySQL更新更改

2 个答案: