ASP.NET Identity Adding Role

Question

im working on a project with MVC. I want to use IDENTITY Library for membership. This is solution view:

I made accountController and add Registerview.:

 public async Task<ActionResult> Register(RegisterViewModel model) { if (!ModelState.IsValid) return View(model); var userManager = MemberShipTools.NewUserManager(); var roleManager = MemberShipTools.NewRoleManager(); var checkUser = userManager.FindByName(model.TCNo); if (checkUser!=null) { ModelState.AddModelError(string.Empty, "Bu TC No sistemde kayıtlı"); return View(model); } checkUser = userManager.FindByEmail(model.Email); if (checkUser!=null) { ModelState.AddModelError(string.Empty, "Bu mail adresi sistemde kayıtlı"); return View(model); } var user = new Kullanici() { Ad=model.Ad, Soyad=model.Soyad, Email=model.Email, UserName=model.TCNo, }; var response = userManager.Create(user, model.Sifre); if (response.Succeeded) { if (userManager.Users.ToList().Count() == 1) { userManager.AddToRole(user.Id, "Admin"); } else { userManager.AddToRole(user.Id, "Passive"); } return RedirectToAction("Login", "Hesap"); } else { ModelState.AddModelError(string.Empty, "Kayıt işleminde bir hata oluiştu"); return View(model); } }

when i try to add new member it says "Role Admin does not exist." but added new member to User Table, AspNet Role Table was empty. After that i search and found a solving in this site, i add this lines to my code and it works great.

 const string roleName = "Admin"; var role = roleManager.FindByName(roleName); if (role == null) { role = new Rol() { Name="Admin", Aciklama="Site Yöneticisi"}; roleManager.Create(role); }

But its not logical, every register page i check roles and try to add role, my question is Where I should to write this Roll Adding codes, which layer which page, because i need only two or three roles. I must to create them one time , i know that but i dont know where I shoul to do this. Thanks for answers sorry for my bad english :)

You need to insert all of your Roles where you insert Rol. Then you don't need to check every time to insert Role. — Mahedi Sabuj
– Mahedi Sabuj, Commented Dec 11, 2017 at 22:28

Caz1224 · Accepted Answer · 2017-12-11 23:14:48Z

Something that might help is having a seed database class that runs at start up. Is it safe to assume you are using a code first database? I will show examples for both.

So first thing to do in your "Data" folder is create a class called "SeedData"

using Project.Models.DatabaseModels; using System; using System.Collections.Generic; using System.Linq; using System.Net; using System.Threading.Tasks; namespace Project.Data { public class SeedData { private ApplicationDbContext _context; public ApplicationContextSeedData(ApplicationDbContext context) { _context = context; } public void EnsureSeedData() { if ("Check if roles are already there") { role = new Rol() { Name="Role1", Aciklama="Site Yöneticisi"}; roleManager.Create(role); role = new Rol() { Name="Role2", Aciklama="Site Yöneticisi"}; roleManager.Create(role); role = new Rol() { Name="Role3", Aciklama="Site Yöneticisi"}; roleManager.Create(role); } } } }

Then once you have that made in your Startup.cs class I add the following line:

 public void ConfigureServices(IServiceCollection services) { services.AddMvc(); services.AddDbContext<ApplicationDbContext>(options => options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection"))); services.AddScoped<SeedData>(); <------ This Line }

Then once you have that, anything you want to make sure is created in your database at the point your application starts will go into your SeedData class.

I cant use IServiceCollection; but I made seeddata class it works well. Thank you
Great, if its working for you could you mark the question as answered.

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