如何在 EF Core 中以一對多關系重命名列？

Question

我有一個包含 Teams 屬性的 League 類，它是一組團隊，如下所示：

public class LeagueEntity
{
    [Key]
    public int LeagueId { get; set; }
    ...
    [Required]
    public ICollection<TeamEntity> Teams { get; set; }
}


public class TeamEntity
{
    [Key]
    public int TeamId { get; set; }
    [Required]
    [MaxLength(100)]
    public string Name { get; set; }
    [Required]
    [MaxLength(10)]
    [Column(TypeName = "varchar(10)")]
    public string Code { get; set; }
    [Required]
    [MaxLength(300)]
    public string Logo { get; set; }
    [Required]
    [MaxLength(100)]
    public string Country { get; set; }
    [Required]
    public string IsNational { get; set; }
    [Required]
    public int Founded { get; set; }
    [Required]
    public VenueEntity Venue { get; set; }
}

當我更新數據庫時，會創建兩個表 - Leagues 和 Teams。 在 Teams 表中，我有一列是外鍵，指向正確的聯賽，球隊所屬的聯賽。 該列名為“LeagueEntityLeagueId”。 如何重命名？

Answer 1

使foreign key顯式如下：

public class TeamEntity
{
    [Key]
    public int TeamId { get; set; }

    [ForeignKey("League")]
    public int LeagueId { get; set; } //  You can give the whatever name you want

    .........

    public LeagueEntity League {get; set;}

}

如果您不想要顯式外鍵和導航屬性，則可以執行以下操作：

protected override void OnModelCreating(ModelBuilder modelBuilder)
{
     base.OnModelCreating(modelBuilder);

     modelBuilder.Entity<LeagueEntity>().HasMany(l => l.Teams).WithOne().HasForeignKey("LeagueId");

}

Answer 2

在 TeamEntity 表中添加以下屬性

  public int LeagueId { get; set; }
  public virtual LeagueEntity LeagueEntity { get; set; }