nhibernate - Nhibernate : System. Data.SqlClient.SqlException 错误: 'Index' 附近的语法不正确

Question

我有一个 nhibernate 解决方案，我正在尝试保存，但出现此错误:

Test method HelloMusic.Core.Test.CrudTests.TestTrackAdd threw exception: 
NHibernate.Exceptions.GenericADOException: could not insert collection: [HelloMusic.BLL.Track.Credits#20][SQL: INSERT INTO Tracks_Credits (TrackID, Index, CreditID) VALUES (@p0, @p1, @p2)] ---> System.Data.SqlClient.SqlException: Incorrect syntax near 'Index'. If this is intended as a part of a table hint, A WITH keyword and parenthesis are now required. See SQL Server Books Online for proper syntax.

SQL如下:

NHibernate: SELECT this_.GenreID as GenreID9_0_, this_.GenreName as GenreName9_0_ FROM Genres this_
NHibernate: INSERT INTO Tracks (ContainsSamples, Description, HasExplicitLyrics, IsCover, Lyrics, Name, OrderIndex, GenreID) VALUES (@p0, @p1, @p2, @p3, @p4, @p5, @p6, @p7); select SCOPE_IDENTITY();@p0 = False, @p1 = 'Teh awesome18133437', @p2 = True, @p3 = False, @p4 = 'b'z in yer mouth18141375', @p5 = 'beez in yer mouth18141375', @p6 = 1, @p7 = 1
NHibernate: INSERT INTO Credits (Email, Location, Name, Role) VALUES (@p0, @p1, @p2, @p3); select SCOPE_IDENTITY();@p0 = 'foo@foo.com', @p1 = NULL, @p2 = 'Some Dood', @p3 = 'teh Awesums'
NHibernate: INSERT INTO Images (ForeignEntityID, ForeignEntityType, CreatedDate, Extension, FileName, Height, IsOriginal, LastModifiedDate, LocationPath, MetaData, SizeInKiloBytes, Type, Width) VALUES (@p0, @p1, @p2, @p3, @p4, @p5, @p6, @p7, @p8, @p9, @p10, @p11, @p12); select SCOPE_IDENTITY();@p0 = 0, @p1 = 'Track', @p2 = 7/21/2010 5:20:59 PM, @p3 = 'jpregg', @p4 = 'tex0r', @p5 = 0, @p6 = True, @p7 = 7/21/2010 5:21:00 PM, @p8 = '//server/yourmom', @p9 = NULL, @p10 = 5898, @p11 = NULL, @p12 = 0
NHibernate: INSERT INTO Languages (Name) VALUES (@p0); select SCOPE_IDENTITY();@p0 = 'Spanglish'
NHibernate: INSERT INTO Tracks_Credits (TrackID, Index, CreditID) VALUES (@p0, @p1, @p2);@p0 = 20, @p1 = 0, @p2 = 19

我怀疑问题是这样的(我已经在 SQL 中运行它并得到相同的错误):

NHibernate: INSERT INTO Tracks_Credits (TrackID, Index, CreditID) VALUES (@p0, @p1, @p2);@p0 = 20, @p1 = 0, @p2 = 19

但让我感到困惑的是该表没有“索引”列

我的 map 中也没有任何“索引”。有没有人看到这个？

为什么它会在那里抛出“索引”？

这是信用 map :

public class CreditMap: ClassMap<Credit>
{
    public CreditMap()
    {
        Table("Credits");
        Id(x => x.ID, "CreditId");
        Map(x => x.Email, "Email")
            .Length(1000);
        Map(x => x.Location, "Location")
            .Length(1000);
        Map(x => x.Name, "Name")
            .Length(1000);
        Map(x => x.Role, "Role")
            .Length(1000);
    }
}

这是轨迹图:

public class ForeignEntityTypeFilter : FilterDefinition
{
    public ForeignEntityTypeFilter()
    {
        WithName("ForeignEntity")
            .AddParameter("IsType", NHibernate.NHibernateUtil.String);
    }
}

public class TrackMap: ClassMap<Track>
{
    public TrackMap()
    {
        Table("Tracks");
        Id(x => x.ID, "TrackId");
        Map(x => x.ContainsSamples);
        Map(x => x.Description);
        Map(x => x.HasExplicitLyrics);
        Map(x => x.IsCover);
        Map(x => x.Lyrics);
        Map(x => x.Name)
            .Length(1000);
        Map(x => x.OrderIndex);
        References<Genre>(x => x.Genre, "GenreID");
        HasManyToMany<Credit>(x => x.Credits)
            .ChildKeyColumn("CreditID")
            .AsList()
            .ParentKeyColumn("TrackID")
            .Table("Tracks_Credits")
            .Not.Inverse()
            .Cascade.SaveUpdate();
        HasMany<TrackImage>(x => x.Images)
            .Table("Images")
            .KeyColumn("ForeignEntityID")
            .ApplyFilter<ForeignEntityTypeFilter>("'Track' == ForeignEntityType")
            .Not.Inverse()
            .Cascade.SaveUpdate();
        HasManyToMany<Language>(x => x.Languages)
            .ChildKeyColumn("LanguageID")
            .AsList()
            .ParentKeyColumn("TrackID")
            .Table("Tracks_Languages")
            .Not.Inverse()
            .Cascade.SaveUpdate();
        HasManyToMany<MediaFile>(x => x.MediaFiles)
            .ChildKeyColumn("MediaFileID")
            .AsList()
            .ParentKeyColumn("TrackID")
            .Table("Tracks_MediaFiles")
            .Not.Inverse()
            .Cascade.SaveUpdate();
    }
}

Answer 1

问题是 AsList()集合的映射。这将集合映射为一个有序列表，它需要数据库中的一个索引列来维护顺序。您可能想使用 AsBag() 来映射它们。 .