我创建了一个上下文(带有脚手架)和一个用户。
我还设置了播放数据库(并创建了迁移)。
这样完美!
我现在想创建一个角色,然后将其分配给用户。
为此,我修改了startup.cs文件以继续进行操作(我找不到能够显示如何使用不同于ApplicationDbContext的上下文创建/分配角色的教程)。
我对代码中的错误感到满意(至少在我看来),但我不知道如何处理该错误以及如何替换该对象。
因此,我创建了一个CreateRoles方法,该方法接收一个serviceProvider(类型为IServiceProvider),并且在此方法中,我尝试初始化rome,然后将它们分配给数据库的其他用户。
我的关注在这里(我认为):
var RoleManager = serviceProvider.GetRequiredService>();
实际上,除了使用jakformulaireContext外,我认为它用于ApplicationDbContext。
我的问题是:我应该更换什么(如果那是我需要更换的)?
让我知道您是否需要模式信息或模式代码!
启动班
公共类创业
{
公共启动(IConfiguration配置)
{
配置=配置;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.Configure<CookiePolicyOptions>(options =>
{
// This lambda determines whether user consent for non-essential cookies is needed for a given request.
options.CheckConsentNeeded = context => true;
options.MinimumSameSitePolicy = SameSiteMode.None;
});
services.AddDbContext<jakformulaireContext>(options =>
options.UseSqlServer(
Configuration.GetConnectionString("jakformulaireContextConnection")));
services.AddDefaultIdentity<jakformulaireUser>(configg =>
{
configg.SignIn.RequireConfirmedEmail = true;
}).AddEntityFrameworkStores<jakformulaireContext>(); ;
var config = new AutoMapper.MapperConfiguration(cfg =>
{
cfg.AddProfile(new MappingProfile());
});
var mapper = config.CreateMapper();
services.AddSingleton(mapper);
//services.AddAutoMapper();
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
services.AddDistributedMemoryCache();
services.AddSession();
// requires
// using Microsoft.AspNetCore.Identity.UI.Services;
// using WebPWrecover.Services;
services.AddSingleton<IEmailSender, EmailSender>();
services.Configure<AuthMessageSenderOptions>(Configuration);
services.AddCors(options =>
{
options.AddPolicy("CorsPolicy",
builder => builder.AllowAnyOrigin()
.AllowAnyMethod()
.AllowAnyHeader()
.AllowCredentials());
});
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env, IServiceProvider serviceProvider)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
app.UseDatabaseErrorPage();
}
else
{
app.UseExceptionHandler("/Home/Error");
app.UseHsts();
}
app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseCookiePolicy();
app.UseSession();
app.UseAuthentication();
app.UseCors("CorsPolicy");
app.UseMvc(routes =>
{
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}");
});
//CreateRoles(serviceProvider).Wait();
}
private async Task CreateRoles(IServiceProvider serviceProvider)
{
//initializing custom roles
var RoleManager = serviceProvider.GetRequiredService<RoleManager<IdentityRole>>();
var UserManager = serviceProvider.GetRequiredService<UserManager<jakformulaireUser>>();
string[] roleNames = { "Guest", "Member", "Admin" };
IdentityResult roleResult;
foreach (var roleName in roleNames)
{
var roleExist = await RoleManager.RoleExistsAsync(roleName);
if (!roleExist)
{
//create the roles and seed them to the database: Question 1
roleResult = await RoleManager.CreateAsync(new IdentityRole(roleName));
}
}
jakformulaireUser user = await UserManager.FindByEmailAsync("[email protected]");
if (user == null)
{
user = new jakformulaireUser()
{
UserName = "[email protected]",
Email = "[email protected]",
EmailConfirmed = true
};
await UserManager.CreateAsync(user, "Test123$");
}
await UserManager.AddToRoleAsync(user, "Member");
jakformulaireUser user1 = await UserManager.FindByEmailAsync("[email protected]");
if (user1 == null)
{
user1 = new jakformulaireUser()
{
UserName = "[email protected]",
Email = "[email protected]",
EmailConfirmed = true
};
await UserManager.CreateAsync(user1, "Test123$");
}
await UserManager.AddToRoleAsync(user1, "Admin");
}
}
语境
public class jakformulaireContext : IdentityDbContext<jakformulaireUser>
{
public jakformulaireContext(DbContextOptions<jakformulaireContext> options)
: base(options)
{
}
protected override void OnModelCreating(ModelBuilder builder)
{
base.OnModelCreating(builder);
// Customize the ASP.NET Identity model and override the defaults if needed.
// For example, you can rename the ASP.NET Identity table names and more.
// Add your customizations after calling base.OnModelCreating(builder);
}
}
最佳答案
当您创建自己的IdentityRole
或忘记注册RoleManager
时,通常会发生此错误。
如果您已通过class jakformulaireContext : IdentityDbContext<YourAppUser, YourIdentityRole>
自定义上下文,请确保使用RoleManager<IdentityRole>
服务的任何地方均已替换为RoleManager< YourIdentityRole>
另外,请确保已注册RoleManager<YourIdentityRole>
。如果您没有创建自己的IdentityRole
版本,只需调用.AddRoleManager<RoleManager<IdentityRole>>()
services.AddIdentity<jakformulaireUser, IdentityRole>()
.AddRoleManager<RoleManager<IdentityRole>>() // make sure the roleManager has been registered .
.AddDefaultUI()
// other features ....
.AddEntityFrameworkStores<jakformulaireContext>()
关于c# - 使用RoleManager创建新角色,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/53782492/