Question

我首先使用实体框架代码在用户上创建小crud操作。现在我需要使用存储过程的删除用户，所以我找到许多链接获取如何在EF中使用存储过程的解决方案。所以我写了这个代码那个。我在类中编写了这个代码和方法OnModelCreating（），并在登录时获取错误，如'无效对象名'dbo.ApplicationUsers'。我评论此方法登录非常好工作，但取消注释此代码获取错误。

这是我的班级：

  using System.Security.Claims;
  using System.Threading.Tasks;
  using Microsoft.AspNet.Identity;
  using Microsoft.AspNet.Identity.EntityFramework;
  using Microsoft.AspNet.Identity.Owin;
  using System.Data.Entity;
  using System.Data.Entity.Core.Objects;
  using System.Data.Entity.Infrastructure;
  using System.Collections.Generic;
  using System.ComponentModel.DataAnnotations.Schema;

  namespace abc.Models
  {
    // You can add profile data for the user by adding more properties to your ApplicationUser class, please visit http://go.microsoft.com/fwlink/?LinkID=317594 to learn more.    
public class ApplicationUser : IdentityUser
{
    public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser> manager, string authenticationType)
    {
        // Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
        var userIdentity = await manager.CreateIdentityAsync(this, authenticationType);
        // Add custom user claims here
        return userIdentity;
    }       
}

public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
    public ApplicationDbContext()
        : base("DefaultConnection")
    {
    }

    public virtual DbSet<Users> Users { get; set; }


    public static ApplicationDbContext Create()
    {
        return new ApplicationDbContext();
    }

    public virtual ObjectResult<List<Users>> GetUserInfo()
    { 
        return ((IObjectContextAdapter)this).ObjectContext.ExecuteFunction<List<Users>>("GetUserInfo");
    }

    protected override void OnModelCreating(DbModelBuilder modelBuilder) // this method wroite after getting error
    {
        modelBuilder.Entity<IdentityUserLogin>().HasKey<string>(l => l.UserId);
        modelBuilder.Entity<IdentityRole>().HasKey<string>(r => r.Id);
        modelBuilder.Entity<IdentityUserRole>().HasKey(r => new { r.RoleId, r.UserId });

        modelBuilder.Entity<Users>()
            .MapToStoredProcedures(s => s.Delete(u => u.HasName("DeleteUserById", "dbo")
                                            .Parameter(b => b.id, "userid"))
            );
    }  

}
}

这是用户类：

[Table("Users")]
public class Users
{
    [Key]
    [DatabaseGeneratedAttribute(DatabaseGeneratedOption.None)]
    public long id { get; set; }

    public string firstname { get; set; }

    public string lastname { get; set; }       

    public string contactnumber { get; set; }

    public DateTime datetime { get; set; }

}

这是我的班级，任何人都知道如何做到并解决这个错误。

Answer 1

问题出在这里

protected override void OnModelCreating(DbModelBuilder modelBuilder) // this method wroite after getting error
{
    modelBuilder.Entity<IdentityUserLogin>().HasKey<string>(l => l.UserId);
    modelBuilder.Entity<IdentityRole>().HasKey<string>(r => r.Id);
    modelBuilder.Entity<IdentityUserRole>().HasKey(r => new { r.RoleId, r.UserId });

    modelBuilder.Entity<Users>()
        .MapToStoredProcedures(s => s.Delete(u => u.HasName("DeleteUserById", "dbo")
                                        .Parameter(b => b.id, "userid"))
        );
}

删除前三行并添加

base.OnModelCreating(modelBuilder);

所以它将是

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

    modelBuilder.Entity<Users>()
        .MapToStoredProcedures(s => s.Delete(u => u.HasName("DeleteUserById", "dbo")
                                        .Parameter(b => b.id, "userid"))
        );
}

Answer 2

我解决了运行此sql命令的错误

create view myschema.ApplicationUser as select * from myschema.AspNetUsers

dbraillon的解决方案对我产生了新的错误：

无效的对象名称dbo.AspNetUsers

因为我的AspNetUsers表不在dbo模式中，所以我需要覆盖默认的onModelCreating

无效的对象名称'dbo.ApplicationUsers'。？

2 个答案: