stuff.cs

[Table("linking_ObjectMapping", Schema = "dbo")]
public class ObjectMapping
{
    [Key, Column(Order = 0)]
    public int ObjectId { get; set; }
    [Key, Column(Order = 1)]
    public LinkEnvironment EnvironmentId { get; set; }
    [Key, Column(Order = 2)]
    public int ApplicationId { get; set; }

    public int DatabaseId { get; set; }

    [ForeignKey("DatabaseId, EnvironmentId")]
    public LinkBackend Database { get; set; }

    public LinkObject Object { get; set; }

    public LinkApplication Application { get; set; }

    public ObjectMapMode MappingType { get; set; }

    public string ObjectAlias { get; set; }

    public DateTime LastModified { get; set; }

    public string UserName { get; set; }
}

[Table("linking_Databases", Schema = "dbo")]
public class LinkBackend
{
    [Key, Column(Order = 0)]
    public int DatabaseId { get; set; }

    [Key, Column("EnvironmentId", Order = 1)]
    public LinkEnvironment Environment { get; set; }

    [Column("DatabaseName")]
    public string Name { get; set; }

    [Column("DefaultFileLocation")]
    public string FilePath { get; set; }

    public string ConnectionString { get; set; }

    public virtual ICollection<ObjectMapping> Mappings { get; set; }
}