Add FormValidationService and EventDefinitionService to dependency injection

Enhanced the application's service layer by adding FormValidationService and EventDefinitionService to the dependency injection container in Program.cs. Updated Create, Edit, and other relevant components to utilize these services for improved form validation and event processing functionality.
2025-12-28 19:56:16 -05:00
parent 0358763601
commit 065a83442c
11 changed files with 642 additions and 200 deletions
@@ -2,10 +2,14 @@
@attribute [Authorize]
@using Microsoft.EntityFrameworkCore
@using WebApp.Components.Shared.Components
+@using MudBlazor
+@using WebApp.Services
@inject AppDbContext Context
@inject NavigationManager NavigationManager
+@inject ISnackbar Snackbar
+@inject FormValidationService ValidationService

-@if (Student is null)
+@if (Student is null || _editContext is null)
 {
    <p><em>Loading...</em></p>
    return;
@@ -19,10 +23,13 @@

@* https://www.mudblazor.com/components/form *@
@* https://medium.com/@husainalbar/applying-mudblazor-for-crud-operations-in-our-blazor-project-a343037a52ef *@
-<EditForm method="post" Model="Student" OnValidSubmit="UpdateStudent" FormName="edit" Enhance>
+<EditForm method="post" EditContext="@_editContext" OnInvalidSubmit="OnInvalidSubmit" FormName="edit" Enhance>
        <FormChangeTracker @ref="_formChangeTracker" />
        <AntiforgeryToken />
        <DataAnnotationsValidator/>
+        
+        <ValidationErrorDisplay Errors="_validationErrors" />
+        
        <MudGrid>
            <MudItem xs="12" sm="7">
                <MudPaper Elevation="2" Class="pa-6">
@@ -64,6 +71,8 @@
    private Student? Student { get; set; }

    private FormChangeTracker? _formChangeTracker;
+    private EditContext? _editContext;
+    private List<string> _validationErrors = new();

    protected override async Task OnInitializedAsync()
    {
@@ -73,12 +82,36 @@
        {
            NavigationManager.NavigateTo("notfound");
        }
+        else
+        {
+            _editContext = new EditContext(Student);
+        }
+    }
+
+    private void OnInvalidSubmit(EditContext editContext)
+    {
+        _validationErrors = ValidationService.HandleInvalidSubmit(editContext, Student!, errors => _validationErrors = errors);
+        StateHasChanged();
    }

    // To protect from overposting attacks, enable the specific properties you want to bind to.
    // For more information, see https://learn.microsoft.com/aspnet/core/blazor/forms/#mitigate-overposting-attacks.
    private async Task UpdateStudent()
    {
+        // Validate before processing
+        if (_editContext != null)
+        {
+            var errors = ValidationService.CollectValidationErrors(_editContext, Student!);
+            if (errors.Any())
+            {
+                _validationErrors = ValidationService.HandleInvalidSubmit(_editContext, Student!, err => _validationErrors = err);
+                StateHasChanged();
+                return;
+            }
+        }
+
+        _validationErrors.Clear();
+
        if (Student?.OfficerRole == 0)
            Student.OfficerRole = null;

@@ -87,20 +120,33 @@
        try
        {
            await Context.SaveChangesAsync();
+            Snackbar.Add($"Student '{Student!.FirstNameLastName}' saved successfully.", Severity.Success);
            _formChangeTracker?.AllowNavigation();
            NavigationManager.NavigateTo(ReturnUrl ?? "/students");
        }
-        catch (DbUpdateConcurrencyException)
+        catch (DbUpdateConcurrencyException ex)
        {
-            if (!StudentExists(Student!.Id))
-            {
-                NavigationManager.NavigateTo("notfound");
-            }
-            else
+            if (!ValidationService.HandleDbUpdateConcurrencyException(
+                ex,
+                () => StudentExists(Student!.Id),
+                "student",
+                () => NavigationManager.NavigateTo("notfound")))
            {
                throw;
            }
        }
+        catch (DbUpdateException ex)
+        {
+            ValidationService.HandleDbUpdateException(
+                ex,
+                "An error occurred while saving the student.",
+                "student",
+                "saving");
+        }
+        catch (Exception ex)
+        {
+            ValidationService.HandleException(ex);
+        }
    }

    private async Task HandleCancel()