这里是我的模型EF 4.1代码第一多个一个一对多的关联
public class Horse
{
public int HorseId { get; set; }
public string Name { get; set; }
public string Gender { get; set; }
public LegType LegType { get; set; }
public Character Character { get; set; }
public int Hearts { get; set; }
public bool Retired { get; set; }
// Parents
public Horse Sire { get; set; }
public Horse Dam { get; set; }
// Internals
public int Stamina { get; set; }
public int Speed { get; set; }
public int Sharp { get; set; }
// Special
public int Dirt { get; set; }
// Externals
public int Start { get; set; }
public int Corner { get; set; }
public int OutOfTheBox { get; set; }
public int Competing { get; set; }
public int Tenacious { get; set; }
public int Spurt { get; set; }
//Races
public virtual ICollection<Race> RaceResults { get; set; }
//Training
public virtual ICollection<Training> TrainingResults { get; set; }
}
public class Race
{
public int RaceId { get; set; }
public int Favorite { get; set; }
public LegType LegType { get; set; }
public int Players { get; set; }
public DateTime Split { get; set; }
public DateTime Final { get; set; }
public int Position { get; set; }
public virtual int TrackId { get; set; }
public virtual Track Track { get; set; }
public virtual int LinkedHorseId { get; set; }
public virtual Horse LinkedHorse { get;set; }
}
public class Training
{
public int TrainingId { get; set; }
public string Type { get; set; }
public string Result { get; set; }
public string Food { get; set; }
public int Start { get; set; }
public int Corner { get; set; }
public int Outofthebox { get; set; }
public int Competing { get; set; }
public int Tenacious { get; set; }
public int Spurt { get; set; }
public virtual int LinkedHorseId { get; set; }
public virtual Horse LinkedHorse { get; set; }
}
public class Track
{
public int TrackId { get; set; }
public string Name { get; set; }
public int Distance { get; set; }
public bool G1 { get; set; }
public int Prize { get; set; }
}
And here is my fluent API code.
public class HorseTracker : DbContext
{
public DbSet<Horse> Horses { get; set; }
public DbSet<LegType> LegTypes { get; set; }
public DbSet<Character> Characters { get; set; }
public DbSet<Training> TrainingResults { get; set; }
public DbSet<Track> Tracks { get; set; }
public DbSet<Race> Races { get; set; }
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
modelBuilder.Entity<Race>()
.HasRequired(r => r.LinkedHorse)
.WithMany(h => h.RaceResults)
.HasForeignKey(r => r.LinkedHorseId);
modelBuilder.Entity<Training>()
.HasRequired(t => t.LinkedHorse)
.WithMany(t => t.TrainingResults)
.HasForeignKey(t => t.LinkedHorseId);
modelBuilder.Entity<Race>()
.HasRequired(r => r.Track)
.WithMany()
.HasForeignKey(r => r.TrackId)
.WillCascadeOnDelete(false);
}
}
我不断收到此错误: 无法确定类型“DOCCL.Models.Horse之间的关联的主要终点'和'DOCCL.Models.Horse'。该关联的主要目的必须使用关系流畅API或数据注释来显式配置。
任何线索我做错了什么。 我一直在玩弄没有外键。使其中一个必需的列表可选。 它们都会导致不同的错误。 主要是说关系需要是1:1的关系。 一旦它说它有一个不可空字段。
我做了可空的int?然后我再次得到第一个错误。
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