Question

在IdentityFramework中，我为数据库添加新字段，即标准表Role（Description）

当我添加新角色时，我想获得对该角色的描述。

我制作了cshtml文件

SELECT rownum = DENSE_RANK() OVER (ORDER BY Number), Number
FROM #SEQNUMBERSTEMP

}

在控制器中发布查询

@using (Html.BeginForm("CreateRole", "Role", FormMethod.Post))
{
@Html.AntiForgeryToken()
<div id="create-role-box">
    @Html.ValidationSummary(false)

    <div class="form-group">
        <label class="create-role-color">Название роли:</label>
        @Html.TextBoxFor(x => x.Name, new { @class = "input-form-create-role create-role-color" })
        @Html.ValidationMessageFor(x => x.Name)
    </div>

    <div class="form-group">
        <label class="create-role-color">Описание роли:</label>
        @Html.TextBoxFor(x => x.Description, new { @class = "input-form-create-role create-role-color" })
        @Html.ValidationMessageFor(x => x.Description)
    </div>

    <div class="form-group" style="margin: 22px 0px 0px 0px;">
        <button type="submit" class="button-create-role">Добавить</button>

        @Html.ActionLink("Отмена", "Index", null, new { @class = "button-cancel" })
    </div>
</div>

我在存储库中描述的public async Task<ActionResult> CreateRole([Required]string name, string description) { if (ModelState.IsValid) { IdentityResult result = await roleManager.CreateRoleAsync(name, description); if (result.Succeeded) { return RedirectToAction("Index"); } else { AddErrorsFromResult(result); } } return View(name); }方法

CreateRoleAsync(name, description);

我的public async Task<IdentityResult> CreateRoleAsync(string name, string description) { IdentityResult result = await userRole.CreateAsync(new UserRole(name, description)); return result; }模型是

UserRole

，如果需要我的上下文

public class UserRole : IdentityRole
{
    public UserRole(string name, string description) : base(name)
    {
        description = Description;
    }

    public string Description { get; set; }
}

问题在于public class IdentityUserContext : IdentityDbContext<UserModel> { public IdentityUserContext() : base("UserIdentityDbContext") { } // creating method realize by ninject in Ninject.Web.Common.cs WebUI->App_Start }未保存在数据库中，

它为空，但是该方法采用description的值，为什么id不保存在数据库中。

Answer 1

首先将UserRole类重命名为ApplicationRole，因为UserRole令人困惑。 UserRole应该为“用户和角色多对多联接”表命名。

public class ApplicationRole : IdentityRole
{
    public ApplicationRole(string name) : base(name){}

    public string Description { get; set; }
}

现在创建一个RoleViewModel，如下所示：

public class RoleViewModel
{
    public string Id { get; set; }
    [Required(AllowEmptyStrings = false)]
    [Display(Name = "RoleName")]
    public string Name { get; set; }
    public string Description { get; set; }
}

然后查看您的Create视图：

@model Domain.ViewModels.RoleViewModel

@using (Html.BeginForm())
{
    // Your input fields and submit button here
}

现在编写您的CreateRole Post方法，如下所示：

[HttpPost]
public async Task<ActionResult> CreateRole(RoleViewModel roleViewModel)
{
    if (ModelState.IsValid)
    {
        var role = new ApplicationRole(roleViewModel.Name);
        role.Description = roleViewModel.Description; // <--- Here you have to assign the `Description` value

        var roleresult = await RoleManager.CreateAsync(role);
        if (!roleresult.Succeeded)
        {
            ModelState.AddModelError("", roleresult.Errors.First());
            return View();
        }
        return RedirectToAction("Index");
    }
    return View();
}

现在一切正常！

如果要通过存储库方法创建角色，请按如下所示编写CreateRoleAsync存储库方法：

public async Task<IdentityResult> CreateRoleAsync(ApplicationRole applicationRole)
{
    IdentityResult result = await userRole.CreateAsync(applicationRole);
    return result;
}

然后按如下所示在控制器方法中调用它：

[HttpPost]
public async Task<ActionResult> CreateRole(RoleViewModel roleViewModel)
{
    if (ModelState.IsValid)
    {
        var role = new ApplicationRole(roleViewModel.Name);
        role.Description = roleViewModel.Description; // <--- Here you have assign the Description value

        IdentityResult result = await roleManager.CreateRoleAsync(role); // <-- call your repository method here.

        if (!roleresult.Succeeded)
        {
            ModelState.AddModelError("", roleresult.Errors.First());
            return View();
        }
        return RedirectToAction("Index");
    }
    return View();
}

不要将值保存在IdentityRole的额外字段中

1 个答案: