Identity

ASP_NET_CORE/mvcblog/Areas/Admin/Pages/Role/Add.cshtml

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+@page "/admin/role/updaterole/{handler?}/"
+@model Album.Areas.Admin.Pages.Role.AddModel
+@{
+    var btnText = Model.IsUpdate ? "Cập nhật" : "Tạo mới";
+}
+
+
+<h4>@ViewData["Title"]</h4>
+<partial name="_StatusMessage" model="@Model.StatusMessage" />
+
+<div class="row">
+    <div class="col-md-6">
+        <form method="post">
+            <div asp-validation-summary="All" class="text-danger"></div>
+            <input type="hidden"  asp-for="Input.ID">
+            <input type="hidden"  asp-for="IsUpdate">
+            <div class="form-group">
+                <label asp-for="Input.Name"></label>
+                <input asp-for="Input.Name" class="form-control">
+                <span asp-validation-for="Input.Name" class="text-danger"></span>
+            </div>
+
+            <button id="add-or-edit-role" type="submit" asp-page-handler="AddOrUpdate" class="btn btn-primary">@btnText</button>
+            <a class="btn btn-primary" asp-page="./Index">Danh sách</a>
+        </form>
+    </div>
+</div>
+
+@section Scripts {
+    <partial name="_ValidationScriptsPartial" />
+}

ASP_NET_CORE/mvcblog/Areas/Admin/Pages/Role/Add.cshtml.cs

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+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Threading.Tasks;
+using mvcblog.Models;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using Microsoft.Extensions.Logging;
+
+namespace Album.Areas.Admin.Pages.Role {
+    public class AddModel : PageModel {
+        private readonly RoleManager<IdentityRole> _roleManager;
+
+        public AddModel (RoleManager<IdentityRole> roleManager) {
+            _roleManager = roleManager;
+        }
+
+        [TempData] // Sử dụng Session
+        public string StatusMessage { get; set; }
+
+        public class InputModel {
+            public string ID { set; get; }
+
+            [Required (ErrorMessage = "Phải nhập tên role")]
+            [Display (Name = "Tên của Role")]
+            [StringLength (100, ErrorMessage = "{0} dài {2} đến {1} ký tự.", MinimumLength = 3)]
+            public string Name { set; get; }
+
+        }
+        [BindProperty]
+        public InputModel Input { set; get; }
+
+        [BindProperty]
+        public bool IsUpdate { set; get; }
+
+        public IActionResult OnGet () => NotFound ("Không thấy");
+        public IActionResult OnPost () => NotFound ("Không thấy");
+        public IActionResult OnPostStartNewRole () {
+            StatusMessage = "Hãy nhập thông tin để tạo role mới";
+            IsUpdate = false;
+            ModelState.Clear ();
+            return Page ();
+        }
+        public async Task<IActionResult> OnPostStartUpdate () {
+            StatusMessage = null;
+            IsUpdate = true;
+            if (Input.ID == null) {
+                StatusMessage = "Error: Không có thông tin về Role";
+                return Page ();
+            }
+            var result = await _roleManager.FindByIdAsync (Input.ID);
+            if (result != null) {
+                Input.Name = result.Name;
+                ViewData["Title"] = "Cập nhật role : " + Input.Name;
+                ModelState.Clear ();
+            } else {
+                StatusMessage = "Error: Không có thông tin về Role ID = " + Input.ID;
+            }
+
+            return Page ();
+        }
+
+        public async Task<IActionResult> OnPostAddOrUpdate () {
+
+            if (!ModelState.IsValid) {
+                StatusMessage = null;
+                return Page ();
+            }
+
+            if (IsUpdate) {
+                // CẬP NHẬT
+                if (Input.ID == null) {
+                    ModelState.Clear ();
+                    StatusMessage = "Error: Không có thông tin về role";
+                    return Page ();
+                }
+                var result = await _roleManager.FindByIdAsync (Input.ID);
+                if (result != null) {
+                    result.Name = Input.Name;
+                    var roleUpdateRs = await _roleManager.UpdateAsync (result);
+                    if (roleUpdateRs.Succeeded) {
+                        StatusMessage = "Đã cập nhật role thành công";
+                    } else {
+                        StatusMessage = "Error: ";
+                        foreach (var er in roleUpdateRs.Errors) {
+                            StatusMessage += er.Description;
+                        }
+                    }
+                } else {
+                    StatusMessage = "Error: Không tìm thấy Role cập nhật";
+                }
+
+            } else {
+                // TẠO MỚI
+                var newRole = new IdentityRole (Input.Name);
+                var rsNewRole = await _roleManager.CreateAsync (newRole);
+                if (rsNewRole.Succeeded) {
+                    StatusMessage = $"Đã tạo role mới thành công: {newRole.Name}";
+                    return RedirectToPage("./Index");
+                } else {
+                    StatusMessage = "Error: ";
+                    foreach (var er in rsNewRole.Errors) {
+                        StatusMessage += er.Description;
+                    }
+                }
+            }
+
+            return Page ();
+
+        }
+    }
+}

ASP_NET_CORE/mvcblog/Areas/Admin/Pages/Role/AddUserRole.cshtml

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+@page
+@model Album.Areas.Admin.Pages.Role.AddUserRole
+@{
+   ViewData["Title"] = "Cập nhật role cho User";
+}
+
+<h4>@ViewData["Title"]</h4>
+<div class="row">
+    <div class="col-md-6">
+        <p>Chọn các role gán cho <strong>@Model.Input.Name</strong></p>
+        <form method="post">
+            <partial name="_StatusMessage" model="@Model.StatusMessage" />
+            <div class="form-group">
+                @Html.LabelFor(x => x.Input.RoleNames)
+                @Html.ListBoxFor(x => x.Input.RoleNames,
+                    new SelectList( Model.AllRoles ),
+                    new {@class="w-100", id = "selectrole"})
+            </div>
+
+            <div asp-validation-summary="All" class="text-danger"></div>
+            <input type="hidden"  asp-for="Input.ID">
+            <input type="hidden"  asp-for="isConfirmed">
+            <a class="btn btn-primary" asp-page="./User">Danh sách</a>
+            <button type="submit" class="btn btn-danger">Cập nhật</button>
+        </form>
+    </div>
+</div>
+
+@section Scripts {
+    <script src="~/lib/multiple-select/multiple-select.min.js"></script>
+    <link rel="stylesheet" href="~/lib/multiple-select/multiple-select.min.css" />
+    <script>
+          $('#selectrole').multipleSelect({
+                selectAll: false,
+                keepOpen: false,
+                isOpen: false
+            });
+    </script>
+
+
+    <partial name="_ValidationScriptsPartial" />
+}
+

ASP_NET_CORE/mvcblog/Areas/Admin/Pages/Role/AddUserRole.cshtml.cs

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+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Threading.Tasks;
+using mvcblog.Models;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+
+namespace Album.Areas.Admin.Pages.Role {
+  public class AddUserRole : PageModel {
+    private readonly RoleManager<IdentityRole> _roleManager;
+    private readonly UserManager<AppUser> _userManager;
+
+
+    public AddUserRole (RoleManager<IdentityRole> roleManager,
+                        UserManager<AppUser> userManager) {
+        _roleManager = roleManager;
+        _userManager = userManager;
+    }
+
+    public class InputModel {
+      [Required]
+      public string ID { set; get; }
+      public string Name { set; get; }
+
+      public string[] RoleNames  {set; get;}
+
+    }
+
+    [BindProperty]
+    public InputModel Input { set; get; }
+
+    [BindProperty]
+    public bool isConfirmed { set; get; }
+
+    [TempData] // Sử dụng Session
+    public string StatusMessage { get; set; }
+
+    public IActionResult OnGet () => NotFound ("Không thấy");
+
+    public List<string> AllRoles {set; get;} = new List<string>();
+
+    public async Task<IActionResult> OnPost () {
+
+
+      var user = await _userManager.FindByIdAsync (Input.ID);
+      if (user == null) {
+        return NotFound ("Không thấy role cần xóa");
+      }
+
+      var roles    = await _userManager.GetRolesAsync(user);
+      var allroles = await _roleManager.Roles.ToListAsync();
+
+      allroles.ForEach((r) => {
+          AllRoles.Add(r.Name);
+      });
+
+      if (!isConfirmed) {
+        Input.RoleNames = roles.ToArray();
+        isConfirmed = true;
+        StatusMessage = "";
+        ModelState.Clear();
+      }
+      else {
+        // Update add and remove
+        StatusMessage = "Vừa cập nhật";
+        if (Input.RoleNames == null) Input.RoleNames = new string[] {};
+        foreach (var rolename in Input.RoleNames)
+        {
+            if (roles.Contains(rolename)) continue;
+            await _userManager.AddToRoleAsync(user, rolename);
+        }
+        foreach (var rolename in roles)
+        {
+            if (Input.RoleNames.Contains(rolename)) continue;
+            await _userManager.RemoveFromRoleAsync(user, rolename);
+        }
+
+      }
+
+      Input.Name = user.UserName;
+      return Page ();
+    }
+  }
+}

ASP_NET_CORE/mvcblog/Areas/Admin/Pages/Role/Delete.cshtml

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+@page
+@model Album.Areas.Admin.Pages.Role.DeleteModel
+@{
+   ViewData["Title"] = "Xóa role";
+}
+
+<h4>@ViewData["Title"]</h4>
+<div class="row">
+    <div class="col-md-6">
+        <p>Bạn có chăc chắn xóa Role <strong>@Model.Input.Name</strong> </p>
+        <form method="post">
+            <div asp-validation-summary="All" class="text-danger"></div>
+            <input type="hidden"  asp-for="Input.ID">
+            <input type="hidden"  asp-for="isConfirmed">
+            <a class="btn btn-primary" asp-page="./Index">Danh sách</a>
+            <button type="submit" asp-page="./Delete" class="btn btn-danger">Xóa</button>
+        </form>
+    </div>
+</div>
+
+@section Scripts {
+    <partial name="_ValidationScriptsPartial" />
+}
+

ASP_NET_CORE/mvcblog/Areas/Admin/Pages/Role/Delete.cshtml.cs

@@ -0,0 +1,66 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Threading.Tasks;
+using mvcblog.Models;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using Microsoft.Extensions.Logging;
+
+namespace Album.Areas.Admin.Pages.Role {
+  public class DeleteModel : PageModel {
+    private readonly RoleManager<IdentityRole> _roleManager;
+
+    public DeleteModel (RoleManager<IdentityRole> roleManager) {
+      _roleManager = roleManager;
+    }
+
+    public class InputModel {
+      [Required]
+      public string ID { set; get; }
+      public string Name { set; get; }
+
+    }
+
+    [BindProperty]
+    public InputModel Input { set; get; }
+
+    [BindProperty]
+    public bool isConfirmed { set; get; }
+
+    [TempData] // Sử dụng Session
+    public string StatusMessage { get; set; }
+
+    public IActionResult OnGet () => NotFound ("Không thấy");
+
+    public async Task<IActionResult> OnPost () {
+
+      if (!ModelState.IsValid) {
+        return NotFound ("Không xóa được");
+      }
+
+      var role = await _roleManager.FindByIdAsync (Input.ID);
+      if (role == null) {
+        return NotFound ("Không thấy role cần xóa");
+      }
+
+      ModelState.Clear ();
+
+      if (isConfirmed) {
+        //Xóa
+        await _roleManager.DeleteAsync (role);
+        StatusMessage = "Đã xóa " + role.Name;
+
+        return RedirectToPage ("Index");
+      } else {
+        Input.Name = role.Name;
+        isConfirmed = true;
+
+      }
+
+      return Page ();
+    }
+  }
+}