[英]I want to create an account for a user in ASP.NET Core identity but I can't insert the data into table dbo.AspNetUsers
[英]ASP.NET MVC 5 Core Identity CompanyID foreign key on dbo.AspNetUsers table
我有一個 MVC 5 應用程序,它在 SQL 服務器數據庫上使用 Core Identity。 在用戶注冊視圖中,我想為用戶分配到的公司添加一個外鍵下拉列表。 這是一個必填字段,一個用戶只能分配到一個公司。
public class ApplicationUser : IdentityUser
{
....
public int? CompanyID { get; set; }
// [ForeignKey("CompanyId")]
// public virtual Company UserCompany { get; set; }
}
我已將 CompanyID 添加到 AccountViewModels.cs 下的 RegisterViewModel
public class RegisterViewModel
{
....
[Required]
[Display(Name = "Company")]
public int CompanyID { get; set; }
然后我在 AccountController 中添加了以下內容:
using System;
using System.Globalization;
using System.Linq;
using System.Security.Claims;
using System.Threading.Tasks;
using System.Web;
using System.Web.Mvc;
using Microsoft.AspNet.Identity;
using Microsoft.AspNet.Identity.Owin;
using Microsoft.Owin.Security;
using EMS.Models;
namespace EMS.Controllers
{
// [Authorize]
public class AccountController : Controller
{
private ApplicationSignInManager _signInManager;
private ApplicationUserManager _userManager;
private ApplicationDbContext context;
**private EMSEntities db = new EMSEntities();**
public AccountController()
{
context = new ApplicationDbContext();
}
//
// GET: /Account/Register
[AllowAnonymous]
public ActionResult Register()
{
**ViewBag.Company = new SelectList(db.Companies.ToList(), "ID", "CompanyName");**
ViewBag.Name = new SelectList(context.Roles.ToList(), "Name", "Name");
return View();
}
//
// POST: /Account/Register
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Register(RegisterViewModel model, ApplicationUser applicationUser)
{
if (ModelState.IsValid)
{
**ViewBag.Company = new SelectList(db.Companies.ToList(), "ID", "CompanyName", model.CompanyID);**
var user = new ApplicationUser { UserName = model.Email, Email = model.Email, **CompanyID = model.CompanyID** };
var result = await UserManager.CreateAsync(user, model.Password);
if (result.Succeeded)
{
await SignInManager.SignInAsync(user, isPersistent: false, rememberBrowser: false);
// For more information on how to enable account confirmation and password reset please visit https://go.microsoft.com/fwlink/?LinkID=320771
// Send an email with this link
// string code = await UserManager.GenerateEmailConfirmationTokenAsync(user.Id);
// var callbackUrl = Url.Action("ConfirmEmail", "Account", new { userId = user.Id, code = code }, protocol: Request.Url.Scheme);
// await UserManager.SendEmailAsync(user.Id, "Confirm your account", "Please confirm your account by clicking <a href=\"" + callbackUrl + "\">here</a>");
await this.UserManager.AddToRoleAsync(user.Id, model.Name);
return RedirectToAction("Index", "Home");
}
AddErrors(result);
}
// If we got this far, something failed, redisplay form
return View(model);
}
// New Methods
[AllowAnonymous]
[HttpGet]
public ActionResult RegisterRole()
{
ViewBag.Name = new SelectList(context.Roles.ToList(), "Name", "Name");
ViewBag.UserName = new SelectList(context.Users.ToList(), "UserName", "UserName");
return View();
}
最后,我將下拉列表添加到 Register 視圖:
<div class="form-group">
@Html.Label("Company", new { @class = "col-md-2 control-label" })
<div class="col-md-10">
@Html.DropDownList("CompanyID", null, htmlAttributes: new { @class = "form-control" })
</div>
</div>
運行應用程序並嘗試注冊新用戶時,出現以下錯誤:
嘗試登錄時,我在另一行遇到相同的錯誤:
“/”應用程序中的服務器錯誤。 自數據庫創建以來,支持“ApplicationDbContext”上下文的模型已更改。 考慮使用 Code First 遷移來更新數據庫 ( http://go.microsoft.com/fwlink/?LinkId=238269 )。
問題是什么?
在包管理器控制台中嘗試:
Enable-Migrations -ContextTypeName 'Applicationname.Data.ApplicationDbContext'
add-migration 'migrationsname'
update-database
它只需要更新數據庫。 這是因為 Code First 在啟用遷移之前創建了一個數據庫,因此您需要進行初始遷移。
謝謝詹森,你的回答讓我走上了正軌,但並沒有完全解決問題。 解決該問題的方法是將以下內容添加到 Application_Start 下的 Global.asax 文件中:
Database.SetInitializer<ApplicationDbContext>(null);
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