我正在尝试通过将我的现有应用程序从 .net 4.6.2 with EF6 迁移到 .net Core 2.2 with EF Core 来学习asp.net core。
鉴于我有一个现有的数据库，我从数据库生成了模型以便开始移植。我的所有列名都使用下划线，并且在外键所在的地方，它们都以表名开头。
但是，在使用EF Core时，它坚持要求我的代码列名称更改为ManagerUserLoginId而不是Manager_UserLogin_ID，这很好，我可以浏览我的代码。
问题出现在当我尝试使用include查询UserLogin和Manager时。
EF Core上下文具有以下功能：
__DB.UserLogin.Include(x=>x.Manager).First();
此次查询尝试在Manager查询中包括一个UserLoginId列以及Manager_UserLogin_ID列。
以下是相关类：
public partial class Manager
{
public int ManagerId { get; set; }
public int ManagerCompanyId { get; set; }
public int ManagerUserLoginId { get; set; }
public virtual Company ManagerCompany { get; set; }
public virtual UserLogin ManagerUserLogin { get; set; }
}
public partial class UserLogin
{
public UserLogin()
{
Manager = new HashSet<Manager>();
}
public int UserLoginId { get; set; }
public string FullName { get; set; }
public virtual ICollection<Manager> Manager { get; set; }
}
public partial class Company
{
public Company()
{
Manager = new HashSet<Manager>();
}
public int CompanyId { get; set; }
public string CompanyName { get; set; }
public virtual ICollection<Manager> Manager { get; set; }
}
EF Core上下文具有以下功能：
protected override void OnModelCreating(ModelBuilder modelBuilder
{
base.OnModelCreating(modelBuilder);
modelBuilder.Entity<Company>(entity =>
{
entity.HasKey(e => e.CompanyId).HasName("PK_Company_ID");
entity.Property(e => e.CompanyId).HasColumnName("Company_ID");
entity.Property(e => e.CompanyName)
.IsRequired()
.HasColumnName("Company_Name")
.HasMaxLength(200);
modelBuilder.Entity<Manager>(entity =>
{
entity.HasKey(e => e.ManagerId)
.HasName("PK_Manager_ID")
.ForSqlServerIsClustered(false);
entity.HasIndex(e => new { e.ManagerCompanyId, e.ManagerUserLoginId })
.HasName("IX_Manager")
.IsUnique()
.ForSqlServerIsClustered();
entity.Property(e => e.ManagerId).HasColumnName("Manager_ID");
entity.Property(e => e.ManagerCompanyId).HasColumnName("Manager_Company_ID");
entity.Property(e => e.ManagerUserLoginId).HasColumnName("Manager_UserLogin_ID");
entity.HasOne(d => d.ManagerCompany)
.WithMany(p => p.Manager)
.HasForeignKey(d => d.ManagerCompanyId)
.OnDelete(DeleteBehavior.ClientSetNull)
.HasConstraintName("FK_Manager_Company_ID");
entity.HasOne(d => d.ManagerUserLogin)
.WithMany(p => p.Manager)
.HasForeignKey(d => d.ManagerUserLoginId)
.OnDelete(DeleteBehavior.ClientSetNull)
.HasConstraintName("FK_Manager_UserLogin_ID");
});
modelBuilder.Entity<UserLogin>(entity =>
{
entity.HasKey(e => e.UserLoginId).HasName("PK_UserLogin_ID");
entity.HasIndex(e => e.UserLoginUid)
.HasName("IX_UserLogin_UID")
.IsUnique();
entity.Property(e => e.UserLoginId).HasColumnName("UserLogin_ID");
entity.Property(e => e.FullName)
.IsRequired()
.HasColumnName("Full_Name")
.HasMaxLength(300);
entity.Property(e => e.UserLoginUid).HasColumnName("UserLogin_UID");
});
这是来自Sql Profiler的查询语句：
exec sp_executesql N'SELECT [x.Manager].[Manager_ID], [x.Manager].[Manager_Company_ID], [x.Manager].[Manager_UserLogin_ID], , [x.Manager].[UserLoginId]
FROM [Manager] AS [x.Manager]
INNER JOIN (
SELECT TOP(1) [x0].[UserLogin_ID]
FROM [UserLogin] AS [x0]
WHERE [x0].[UserLogin_UID] = @____UID_0
ORDER BY [x0].[UserLogin_ID]
) AS [t] ON [x.Manager].[Manager_UserLogin_ID] = [t].[UserLogin_ID]
ORDER BY [t].[UserLogin_ID]',N'@____UID_0 uniqueidentifier',@____UID_0='F55C9BBB-C7FF-4C87-B834-B2FE6B0F0B17'
请问有人可以帮我诊断和解决这个问题吗？