Question

我需要你帮助指导可能在MVC4中实现模型的好方法。我会让你看看我的模特。但我真的不知道如何将其链接到MVC4中的Membership Provider 我想构建招标申请系统，我有以下模型

招标：谁添加项目？
供应商/提供商：谁为项目出价
项目：通过招标增加的项目（完成）
要求：每个项目都有几个要求。（完成）
1. 我做了项目和要求模型..但我不知道如何做招标和供应商！因为他们两个都必须注册..！？

现在这些是我的上下文模型：

   public class ProjectContext : DbContext
{
    public ProjectContext()
        : base("ProjectsDB")
    {
    }

    public DbSet<ProjectEntry> Entries { get; set; }
    public DbSet<Requiernments> RequiernmentEntries { get; set; }
    //public DbSet<UserProfile> UserProfiles { get; set; }



}





     public class ProjectEntry
{
    [Key]
    public int ID { get; set; }
    [Required]
    public string ProjectName { get; set; }
    public string Description { get; set; }
    public string Statue {get; set; }
    public string UplodedFiles { get; set; }
    public string Budget { get; set; }
    public string EstimateTime { get; set; }
    public string Criterias { get; set; }
    public DateTime? DueDate { get; set; }

}


            public class Requiernments
{
                            [Key]
                            public int RequiernmentId { get; set; }
                            public int ID { get; set; }

                            public string RequiernmentName { get; set; }

                            /// <summary>
                            /// 1: Must to Have 
                            /// 2: Nice to Have 
                            /// 3: Should have
                            /// </summary>
                            public string RequiernmentType { get; set; }

                            public string RequiernmentPrioritet { get; set; }

                            public float RequiernmenWhight { get; set; }
                            public string ProviderAnswer { get; set; }
                            public string ProviderComments{ get; set; }



}:

更新2：

  // POST: /Account/Register

    [HttpPost]
    [AllowAnonymous]
    [ValidateAntiForgeryToken]
    public ActionResult Register(RegisterModel model)
    {
        if (ModelState.IsValid)
        {
            // Attempt to register the user
            try
            {

                if (!Roles.RoleExists("Admin"))
                    Roles.CreateRole("Admin");

                if (!Roles.RoleExists("Member"))
                    Roles.CreateRole("Member");

                if (!Roles.RoleExists("Tender"))
                    Roles.CreateRole("Tender");

                if (!Roles.RoleExists("Provider"))
                    Roles.CreateRole("Provider");

                WebSecurity.CreateUserAndAccount(model.UserName, model.Password,
                     new
                     {
                         EmailAddress = model.EmailAddress
                     }, false);
                Roles.AddUserToRole(model.UserName, "Member");
                WebSecurity.Login(model.UserName, model.Password);

                return RedirectToAction("Index", "Home");
            }
            catch (MembershipCreateUserException e)
            {
                ModelState.AddModelError("", ErrorCodeToString(e.StatusCode));
            }
        }

        // If we got this far, something failed, redisplay form
        return View(model);
    }

和

  <connectionStrings>
  <add name="DefaultConnection" connectionString="Data Source=user-Pc\SQL2012;Initial       Catalog=MemberDB;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\MemberDB.mdf"   providerName="System.Data.SqlClient" />




 </connectionStrings>

图片：

    http://i58.tinypic.com/2rp8i86.png

Answer 1

如果我理解正确，在您的申请中，您有两个角色，招标和供应商。此外，您希望投标能够添加项目，然后将需求与项目相关联。

为了达到这个目的，首先你需要配置 SimpleMembershipProvider 来扮演两个角色＆＃34; 招标＆＃34;和＆＃34; 供应商＆＃34;

首先在配置文件中，使用 SimpleMembershipProvider 替换经典成员资格提供程序
启用迁移

种子成员资格和角色

protected override void Seed(MovieDb context)
{            
//context.Movies.AddOrUpdate(...);

// ...

    SeedMembership();
}

private void SeedMembership()
{            
    WebSecurity.InitializeDatabaseConnection("DefaultConnection",
        "UserProfile", "UserId", "UserName", autoCreateTables: true);

var roles = (SimpleRoleProvider) Roles.Provider;
var membership = (SimpleMembershipProvider) Membership.Provider;

if (!roles.RoleExists("Admin"))
{
    roles.CreateRole("Admin");
}
if (membership.GetUser("sallen",false) == null)
{
    membership.CreateUserAndAccount("sallen", "imalittleteapot");
}
if (!roles.GetRolesForUser("sallen").Contains("Admin"))
{
    roles.AddUsersToRoles(new[] {"sallen"}, new[] {"admin"});
}

}

步骤1,2,3参考： Scott Allen's blog

现在创建模型

public class Tender
{
    public int TenderId { get;set;} 
    public int UserId {get;set;}  //this links to the userid in the UserProfiles table
    public virtual ICollection<Project> Projects {get;set;} 
}

public class Project
{
    public int ProjectId {get;set;}
    public int TenderId {get;set;}

    public virtual Tender Tender {get;set;}
    public virtual ICollection<Supplier> Suppliers {get;set;}
    public virtual ICollection<Requirement> Requirements {get;set;}
}

public class Supplier
{  
    public int SupplierId {get;set;}

    public virtual ICollection<Project> Projects {get;set;}
}

public class Requirement
{
     public int RequirmentId {get;set;}
     public int ProjectId {get;set;}

     public virtual Project Project {get;set;}
}

因为供应商可以出价多个项目，而项目可以有多个出价者，因此供应商和项目有多对多关系，您可能希望有一个映射表。

在OnModelCreating方法中，

modelBuilder.Entity<Project>()
                .HasMany(p => p.Suppliers)
                .WithMany(s => s.Projects)
                .Map(map =>
                {
                    map.ToTable("Project_Supplier_Map")
                       .MapLeftKey("SupplierId")
                       .MapRightKey("ProjectId");
                });

现在你有了你的模型，只需要使用Authorize属性

模型和成员提供商MVC4

1 个答案: