feat : AddChapter + EditChapter

Blazor/Blazor.sln

@@ -3,7 +3,7 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.8.34330.188
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Blazor", "Blazor\Blazor.csproj", "{F9B19564-ED8F-49F7-97D7-2132F92DE3C2}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Blazor", "Blazor\Blazor.csproj", "{F9B19564-ED8F-49F7-97D7-2132F92DE3C2}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution

Blazor/Blazor/Models/ChapterModel.cs

@@ -0,0 +1,13 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Blazor.Models
+{
+    public class ChapterModel
+    {
+        public int Id { get; set; }
+
+        [Required(ErrorMessage = "Name is required")]
+        [StringLength(50, ErrorMessage = "Name is too long.")]
+        public string Name { get; set; }
+    }
+}

Blazor/Blazor/Pages/AddChapter.razor

@@ -0,0 +1,20 @@
+@page "/addChapter"
+@using Blazor.Models
+
+<h3>Add Chapter</h3>
+
+
+<EditForm Model="@chapterModel" OnValidSubmit="@HandleValidSubmit">
+    <DataAnnotationsValidator />
+    <ValidationSummary />
+
+    <p>
+        <label for="name">
+            Name:
+            <InputText id="name" @bind-Value="chapterModel.Name" />
+        </label>
+    </p>
+    
+
+    <button type="submit">Submit</button>
+</EditForm>

Blazor/Blazor/Pages/AddChapter.razor.cs

@@ -0,0 +1,28 @@
+using Blazored.LocalStorage;
+using Microsoft.AspNetCore.Components.Forms;
+using Microsoft.AspNetCore.Components;
+using Blazor.Models;
+using Blazor.Services;
+
+namespace Blazor.Pages
+{
+    public partial class AddChapter
+    {
+        private ChapterModel chapterModel = new();
+
+        [Inject]
+        public IDataService DataService { get; set; }
+
+        [Inject]
+        public NavigationManager NavigationManager { get; set; }
+
+
+        private async void HandleValidSubmit()
+        {
+            await DataService.Add(chapterModel);
+
+            NavigationManager.NavigateTo("chapters");
+        }
+
+    }
+}

Blazor/Blazor/Pages/Chapters.razor

@@ -3,6 +3,12 @@
 @using Blazorise.DataGrid
 <h3>Chapters</h3>
 
+<div>
+    <NavLink class="btn btn-primary" href="addChapter" Match="NavLinkMatch.All">
+        <i class="fa fa-plus"></i> Ajouter
+    </NavLink>
+</div>
+
 <DataGrid TItem="Chapter"
           Data="@chapters"
           ReadData="@OnReadData"
@@ -12,5 +18,10 @@
           Responsive>
     <DataGridColumn TItem="Chapter" Field="@nameof(Chapter.Id)" Caption="#" />
     <DataGridColumn TItem="Chapter" Field="@nameof(Chapter.Name)" Caption="Display name" />
+    <DataGridColumn TItem="Chapter" Field="@nameof(Chapter.Id)" Caption="Action">
+        <DisplayTemplate>
+            <a href="editChapter/@(context.Id)" class="btn btn-primary"><i class="fa fa-edit"></i> Editer</a>
+        </DisplayTemplate>
+    </DataGridColumn>
 </DataGrid>
 

Blazor/Blazor/Pages/Chapters.razor.cs

@@ -1,6 +1,9 @@
 using Microsoft.AspNetCore.Components;
 using Blazor.Models;
 using Blazorise.DataGrid;
+using Blazored.LocalStorage;
+using Blazorise;
+using Blazor.Services;
 
 namespace Blazor.Pages
 {
@@ -11,10 +14,10 @@ namespace Blazor.Pages
         private int totalItem;
 
         [Inject]
-        public HttpClient Http { get; set; }
+        public IDataService DataService { get; set; }
 
         [Inject]
-        public NavigationManager NavigationManager { get; set; }
+        public IWebHostEnvironment WebHostEnvironment { get; set; }
 
         private async Task OnReadData(DataGridReadDataEventArgs<Chapter> e)
         {
@@ -23,14 +26,10 @@ namespace Blazor.Pages
                 return;
             }
 
-            // When you use a real API, we use this follow code
-            //var response = await Http.GetJsonAsync<Item[]>( $"http://my-api/api/data?page={e.Page}&pageSize={e.PageSize}" );
-            var response = (await Http.GetFromJsonAsync<Chapter[]>($"{NavigationManager.BaseUri}fake-data.json")).Skip((e.Page - 1) * e.PageSize).Take(e.PageSize).ToList();
-
             if (!e.CancellationToken.IsCancellationRequested)
             {
-                totalItem = (await Http.GetFromJsonAsync<List<Chapter>>($"{NavigationManager.BaseUri}fake-data.json")).Count;
-                chapters = new List<Chapter>(response); // an actual data for the current page
+                chapters = await DataService.List(e.Page, e.PageSize);
+                totalItem = await DataService.Count();
             }
         }
     }

Blazor/Blazor/Pages/EditChapter.razor

@@ -0,0 +1,18 @@
+@page "/editChapter/{Id:int}"
+
+<h3>Edit Chapter</h3>
+
+
+<EditForm Model="@chapterModel" OnValidSubmit="@HandleValidSubmit">
+    <DataAnnotationsValidator />
+    <ValidationSummary />
+   
+    <p>
+        <label for="name">
+            Name:
+            <InputText id="name" @bind-Value="chapterModel.Name" />
+        </label>
+    </p>
+   
+    <button type="submit">Submit</button>
+</EditForm>

Blazor/Blazor/Pages/EditChapter.razor.cs

@@ -0,0 +1,42 @@
+using Blazor.Models;
+using Blazor.Services;
+using Microsoft.AspNetCore.Components;
+
+namespace Blazor.Pages
+{
+    public partial class EditChapter
+    {
+        [Parameter]
+        public int Id { get; set; }
+
+        private ChapterModel chapterModel = new();
+
+        [Inject]
+        public IDataService DataService { get; set; }
+
+        [Inject]
+        public NavigationManager NavigationManager { get; set; }
+
+        [Inject]
+        public IWebHostEnvironment WebHostEnvironment { get; set; }
+
+        protected override async Task OnInitializedAsync()
+        {
+            var chapter = await DataService.GetById(Id);
+
+            // Set the model with the chapter
+            chapterModel = new ChapterModel
+            {
+                Id = chapter.Id,
+                Name = chapter.Name
+            };
+        }
+
+        private async void HandleValidSubmit()
+        {
+            await DataService.Update(Id, chapterModel);
+
+            NavigationManager.NavigateTo("chapters");
+        }
+    }
+}

Blazor/Blazor/Program.cs

@@ -1,4 +1,5 @@
 using Blazor.Data;
+using Blazor.Services;
 using Blazored.LocalStorage;
 using Blazorise;
 using Blazorise.Bootstrap;
@@ -22,6 +23,8 @@ builder.Services
 
 builder.Services.AddBlazoredLocalStorage();
 
+builder.Services.AddScoped<IDataService, DataLocalService>();
+
 var app = builder.Build();
 
 // Configure the HTTP request pipeline.

Blazor/Blazor/Services/DataLocalService.cs

@@ -0,0 +1,118 @@
+using Blazor.Models;
+using Blazored.LocalStorage;
+using Microsoft.AspNetCore.Components;
+
+namespace Blazor.Services
+{
+    public class DataLocalService : IDataService
+    {
+        private readonly HttpClient _http;
+        private readonly ILocalStorageService _localStorage;
+        private readonly NavigationManager _navigationManager;
+        private readonly IWebHostEnvironment _webHostEnvironment;
+
+        public DataLocalService(
+            ILocalStorageService localStorage,
+            HttpClient http,
+            IWebHostEnvironment webHostEnvironment,
+            NavigationManager navigationManager)
+        {
+            _localStorage = localStorage;
+            _http = http;
+            _webHostEnvironment = webHostEnvironment;
+            _navigationManager = navigationManager;
+        }
+
+        public async Task<Chapter> GetById(int id)
+        {
+            // Get the current data
+            var currentData = await _localStorage.GetItemAsync<List<Chapter>>("data");
+
+            // Get the chapter int the list
+            var chapter = currentData.FirstOrDefault(w => w.Id == id);
+
+            // Check if chapter exist
+            if (chapter == null)
+            {
+                throw new Exception($"Unable to found the item with ID: {id}");
+            }
+
+            return chapter;
+        }
+
+        public async Task Update(int id, ChapterModel model)
+        {
+            // Get the current data
+            var currentData = await _localStorage.GetItemAsync<List<Chapter>>("data");
+
+            // Get the chapter int the list
+            var chapter = currentData.FirstOrDefault(w => w.Id == id);
+
+            // Check if chapter exist
+            if (chapter == null)
+            {
+                throw new Exception($"Unable to found the item with ID: {id}");
+            }
+
+            // Modify the content of the chapter
+            chapter.Name = model.Name;
+
+            // Save the data
+            await _localStorage.SetItemAsync("data", currentData);
+        }
+
+
+        public async Task Add(ChapterModel model)
+        {
+            // Get the current data
+            var currentData = await _localStorage.GetItemAsync<List<Chapter>>("data");
+
+            // Simulate the Id
+            model.Id = currentData.Max(s => s.Id) + 1;
+
+            // Add the chapter to the current data
+            currentData.Add(new Chapter
+            {
+                Id = model.Id,
+                Name = model.Name
+            });
+
+          
+            // Save the data
+            await _localStorage.SetItemAsync("data", currentData);
+        }
+
+
+        public async Task<int> Count()
+        {
+            // Load data from the local storage
+            var currentData = await _localStorage.GetItemAsync<Chapter[]>("data");
+
+            // Check if data exist in the local storage
+            if (currentData == null)
+            {
+                // this code add in the local storage the fake data
+                var originalData = await _http.GetFromJsonAsync<Chapter[]>($"{_navigationManager.BaseUri}fake-data.json");
+                await _localStorage.SetItemAsync("data", originalData);
+            }
+
+            return (await _localStorage.GetItemAsync<Chapter[]>("data")).Length;
+        }
+
+        public async Task<List<Chapter>> List(int currentPage, int pageSize)
+        {
+            // Load data from the local storage
+            var currentData = await _localStorage.GetItemAsync<Chapter[]>("data");
+
+            // Check if data exist in the local storage
+            if (currentData == null)
+            {
+                // this code add in the local storage the fake data
+                var originalData = await _http.GetFromJsonAsync<Chapter[]>($"{_navigationManager.BaseUri}fake-data.json");
+                await _localStorage.SetItemAsync("data", originalData);
+            }
+
+            return (await _localStorage.GetItemAsync<Chapter[]>("data")).Skip((currentPage - 1) * pageSize).Take(pageSize).ToList();
+        }
+    }
+}

Blazor/Blazor/Services/IDataService.cs

@@ -0,0 +1,17 @@
+using Blazor.Models;
+
+namespace Blazor.Services
+{
+    public interface IDataService
+    {
+        Task Add(ChapterModel model);
+
+        Task<int> Count();
+
+        Task<List<Chapter>> List(int currentPage, int pageSize);
+
+        Task<Chapter> GetById(int id);
+
+        Task Update(int id, ChapterModel model);
+    }
+}