使用在关联的模型定义中找不到的额外字段创建的EF数据库表

Question

我正在尝试在VS2013中创建一个MVC项目并创建了一些似乎正在生成带有其他列的表的模型。例如，我有以下模型：

namespace JCF_MVC.Models
{
    public class Actor
    {
        public int ID { get; set; }

        [Phone(ErrorMessage = "Invalid home phone number entered.")]
        [Display(Name = "Home Phone Number")]
        [DataType(DataType.PhoneNumber)]
        public string HomePhone { get; set; }

        [Phone(ErrorMessage = "Invalid mobile/cellular phone number entered.")]
        [Display(Name = "Mobile/Cellular Phone Number")]
        [DataType(DataType.PhoneNumber)]
        public string MobilePhone { get; set; }

        [Phone(ErrorMessage = "Invalid work phone number entered.")]
        [Display(Name = "Work Phone Number")]
        [DataType(DataType.PhoneNumber)]
        public string WorkPhone { get; set; }

        [Required(ErrorMessage = "A person is required.")]
        public virtual Person Person { get; set; }

        public virtual Address Address { get; set; }
    }
}

为该模型生成的CreateTable语句如下：

        CreateTable(
            "dbo.Actors",
            c => new
                {
                    ID = c.Int(nullable: false, identity: true),
                    HomePhone = c.String(),
                    MobilePhone = c.String(),
                    WorkPhone = c.String(),
                    Address_ID = c.Int(),
                    Person_ID = c.Int(nullable: false),
                    Incident_ID = c.Int(),
                })
            .PrimaryKey(t => t.ID)
            .ForeignKey("dbo.Addresses", t => t.Address_ID)
            .ForeignKey("dbo.People", t => t.Person_ID, cascadeDelete: true)
            .ForeignKey("dbo.Incidents", t => t.Incident_ID)
            .Index(t => t.Address_ID)
            .Index(t => t.Person_ID)
            .Index(t => t.Incident_ID);

您会注意到我的模型中没有 Incident或Incident_ID ，所以我不清楚为什么要添加列，外键和索引。