feat(Product): persiste os dados no banco

Author: renebentes

src/BlazingShop/Products/CreateProduct/CreateProductPage.razor

@@ -44,6 +44,14 @@
         </div>
     </div>
 
+
+    @if (!string.IsNullOrEmpty(_errorMessage))
+    {
+        <div class="alert alert-danger" role="alert">
+            @_errorMessage
+        </div>
+    }
+
     <button type="submit" class="btn btn-success">Save</button>
     <a href="/products" class="btn btn-secondary">Cancel</a>
 

src/BlazingShop/Products/CreateProduct/CreateProductPage.razor.cs

@@ -1,4 +1,5 @@
 using BlazingShop.Data;
+using BlazingShop.Models;
 using BlazingShop.Products.Common;
 using Microsoft.AspNetCore.Components;
 using Microsoft.EntityFrameworkCore;
@@ -8,6 +9,7 @@ namespace BlazingShop.Products.CreateProduct;
 public partial class CreateProductPage
 {
     private readonly CreateProductInput _model = new();
+    private string _errorMessage = string.Empty;
 
     private IEnumerable<GetCategoriesQuery> _categories = [];
 
@@ -21,5 +23,25 @@ protected override async Task OnInitializedAsync()
                                               .ToListAsync();
     }
 
-    async Task HandleSubmitAsync() { }
+    public async Task HandleSubmitAsync()
+    {
+        try
+        {
+            var category = await Context.Categories.FindAsync(_model.CategoryId);
+
+            if (category is null)
+            {
+                _errorMessage = $"Categoria com identificador {_model.CategoryId} não encontrada";
+                return;
+            }
+
+            var product = new Product(_model.Title, _model.Description, _model.Image, _model.Price, category);
+            await Context.Products.AddAsync(product);
+        }
+        catch (Exception ex)
+        {
+            _errorMessage = ex.Message;
+            throw;
+        }
+    }
 }