模型和成员资格提供程序 MVC4

Question

我需要您的帮助来指导可能在 MVC4 中实现模型的好方法。 我会让你看看我的模型。但我真的不知道如何将其链接到 MVC4 中的 Membership Provider 我要搭建招标应用系统，我有以下模型

• 招标：谁添加项目？
• 供应商/供应商：项目投标人
• 项目：通过招标添加的项目（完成）

• 需求：每个项目都有几个需求。（完成）

  1. 我做了项目和需求模型..但不知道如何做招标和供应商！因为他们两个都要注册..！？

  2.我的多对多关系正确吗？在 Project 和 Requirement 表之间。？

现在这些是我的带有上下文的模型：

   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);
    }

与

  <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，在您的应用程序中，您有两个角色，tender 和 supplier。此外，您希望 tender 能够添加 project，然后将 requirements 与 project 相关联。 p>

为了实现这一点，首先您需要将 SimpleMembershipProvider 配置为具有两个角色“tender”和“supplier”

1. 首先在配置文件中，用 SimpleMembershipProvider 替换经典会员提供程序

   
   

2. 启用迁移

3. 种子成员和角色

   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

1. 现在创建你的模型

   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;}
   }
   

由于供应商可以投标多个项目，项目可以有多个投标人，因此供应商和项目具有多对多关系，您可能需要一个映射表。

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，只需要用 Authorize 属性装饰你的类