default sku boolean to product skus table

config/Migrations/20251006061008_AddDefaultSkuToProductSkus.php

@@ -0,0 +1,25 @@
+<?php
+declare(strict_types=1);
+
+use Migrations\BaseMigration;
+
+class AddDefaultSkuToProductSkus extends BaseMigration
+{
+    /**
+     * Change Method.
+     *
+     * More information on this method is available here:
+     * https://book.cakephp.org/migrations/4/en/migrations.html#the-change-method
+     * @return void
+     */
+    public function change(): void
+    {
+        $table = $this->table('product_skus');
+        $table->addColumn('default_sku', 'boolean', [
+            'default' => false,
+            'limit' => 11,
+            'null' => false,
+        ]);
+        $table->update();
+    }
+}

src/Model/Table/ProductsTable.php

@@ -97,6 +97,13 @@ class ProductsTable extends Table
             'dependent' => true,
         ]);
 
+        $this->hasOne('DefaultProductSkus', [
+            'foreignKey' => 'product_id',
+            'conditions' => ['PrimaryProductSkus.default_sku' => true],
+            'className' => 'CakeProducts.ProductSkus',
+            'dependent' => true,
+        ]);
+
         $this->getSchema()->setColumnType('product_type_id', EnumType::from(ProductProductTypeId::class));
 
         $this->addBehavior('Muffin/Trash.Trash');

tests/TestCase/Model/Table/ProductsTableTest.php

@@ -26,6 +26,8 @@ class ProductsTableTest extends TestCase
     protected array $fixtures = [
         'plugin.CakeProducts.Products',
         'plugin.CakeProducts.ProductCategories',
+        'plugin.CakeProducts.ProductSkus',
+        'plugin.CakeProducts.ProductSkuVariantValues',
     ];
 
     /**
@@ -68,6 +70,7 @@ class ProductsTableTest extends TestCase
             'ProductSkus',
             'ProductPhotos',
             'PrimaryProductPhotos',
+            'DefaultProductSkus',
         ];
         $associations = $this->Products->associations();