toggle behavior on skus for default product sku, photos for default category photo and default product photo

src/Model/Behavior/SecondToggleBehavior.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace CakeProducts\Model\Behavior;
+
+use ArrayObject;
+use Cake\Datasource\EntityInterface;
+use Cake\Event\EventInterface;
+use Cake\ORM\Behavior;
+use LogicException;
+use Tools\Model\Behavior\ToggleBehavior;
+
+/**
+ * ToggleBehavior
+ *
+ * An implementation of a unique field toggle per table or scope.
+ * This will ensure that on a set of records only one can be a "primary" one, setting the others to false then.
+ * On delete it will give the primary status to another record if applicable.
+ *
+ * @author Mark Scherer
+ * @license MIT
+ */
+class SecondToggleBehavior extends ToggleBehavior {
+
+    /**
+     * Default config
+     *
+     * @var array<string, mixed>
+     */
+    protected array $_defaultConfig = [
+        'field' => 'primary',
+        'on' => 'afterSave', // afterSave (without transactions) or beforeSave (with transactions)
+        'scopeFields' => [],
+        'scope' => [],
+        'findOrder' => null, // null = autodetect modified/created, false to disable
+        'implementedMethods' => [], // to prevent conflict with public toggleField method
+    ];
+}

src/Model/Table/ProductPhotosTable.php

@@ -58,7 +58,22 @@ class ProductPhotosTable extends Table
         );
 
         $this->addBehavior('Timestamp');
-
+        $this->addBehavior('Tools.Toggle', [
+            'field' => 'primary_photo',
+            'scopeFields' => ['product_id'],
+            'scope' => [
+                'deleted IS' => null,
+                'product_id IS NOT' => null,
+            ],
+        ]);
+        $this->addBehavior('CakeProducts.SecondToggle', [
+            'field' => 'primary_category_photo',
+            'scopeFields' => ['product_category_id'],
+            'scope' => [
+                'deleted IS' => null,
+                'product_category_id IS NOT' => null,
+            ],
+        ]);
         $this->belongsTo('Products', [
             'foreignKey' => 'product_id',
             'joinType' => 'LEFT',

src/Model/Table/ProductSkusTable.php

@@ -59,6 +59,13 @@ class ProductSkusTable extends Table
         );
 
         $this->addBehavior('Timestamp');
+        $this->addBehavior('Tools.Toggle', [
+            'field' => 'default_sku',
+            'scopeFields' => ['product_id'],
+            'scope' => [
+                'deleted IS' => null,
+            ],
+        ]);
 
         $this->belongsTo('Products', [
             'className' => 'CakeProducts.Products',

tests/Fixture/ProductPhotosFixture.php

@@ -22,7 +22,7 @@ class ProductPhotosFixture extends TestFixture
                 'id' => '2c386086-f4c5-4093-bea5-ee9c29479f58',
                 'product_id' => 'cfc98a9a-29b2-44c8-b587-8156adc05317',
                 'product_sku_id' => null,
-                'product_category_id' => null,
+                'product_category_id' => '6d223283-361b-4f9f-a7f1-c97aa0ca4c23',
                 'photo_dir' => 'cfc98a9a-29b2-44c8-b587-8156adc05317',
                 'photo_filename' => '2c386086-f4c5-4093-bea5-ee9c29479f58.png',
                 'primary_photo' => 1,
@@ -38,10 +38,10 @@ class ProductPhotosFixture extends TestFixture
                 'id' => '2c386086-f4c5-4093-bea5-ee9c29479f51',
                 'product_id' => 'cfc98a9a-29b2-44c8-b587-8156adc05317',
                 'product_sku_id' => null,
-                'product_category_id' => '3c2377c5-b97c-4bc9-9660-8f77b4893d8b',
+                'product_category_id' => '6d223283-361b-4f9f-a7f1-c97aa0ca4c23',
                 'photo_dir' => 'categories',
                 'photo_filename' => '2c386086-f4c5-4093-bea5-ee9c29479f51.png',
-                'primary_photo' => 1,
+                'primary_photo' => 0,
                 'primary_category_photo' => 1,
                 'photo_position' => 100,
                 'enabled' => 1,
@@ -49,6 +49,37 @@ class ProductPhotosFixture extends TestFixture
                 'modified' => '2025-08-10 04:32:10',
                 'deleted' => null,
             ],
+
+            [
+                'id' => '2c386086-f4c5-4093-bea5-ee9c29479f50',
+                'product_id' => 'cfc98a9a-29b2-44c8-b587-8156adc05317',
+                'product_sku_id' => null,
+                'product_category_id' => '6d223283-361b-4f9f-a7f1-c97aa0ca4c23',
+                'photo_dir' => 'cfc98a9a-29b2-44c8-b587-8156adc05317',
+                'photo_filename' => '2c386086-f4c5-4093-bea5-ee9c29479f58.png',
+                'primary_photo' => 0,
+                'primary_category_photo' => 0,
+                'photo_position' => 100,
+                'enabled' => 1,
+                'created' => '2025-08-10 04:32:10',
+                'modified' => '2025-08-10 04:32:10',
+                'deleted' => null,
+            ],
+            [
+                'id' => '2c386086-f4c5-4093-bea5-ee9c29479f53',
+                'product_id' => 'cfc98a9a-29b2-44c8-b587-8156adc05317',
+                'product_sku_id' => null,
+                'product_category_id' => '6d223283-361b-4f9f-a7f1-c97aa0ca4c23',
+                'photo_dir' => 'categories',
+                'photo_filename' => '2c386086-f4c5-4093-bea5-ee9c29479f51.png',
+                'primary_photo' => 0,
+                'primary_category_photo' => 0,
+                'photo_position' => 100,
+                'enabled' => 1,
+                'created' => '2025-08-10 04:32:10',
+                'modified' => '2025-08-10 04:32:10',
+                'deleted' => null,
+            ],
         ];
         parent::init();
     }

tests/TestCase/Controller/ProductPhotosControllerTest.php

@@ -148,7 +148,7 @@ class ProductPhotosControllerTest extends BaseControllerTest
      *
     * @uses \CakeProducts\Controller\ProductPhotosController::add
     */
-    public function testAddPostLoggedInSuccess(): void
+    public function testAddPostLoggedInSuccessDefaultProductPhoto(): void
     {
         $cntBefore = $this->ProductPhotos->find()->count();
 
@@ -166,6 +166,12 @@ class ProductPhotosControllerTest extends BaseControllerTest
         if (!copy($file, $toUseFile)) {
             $this->fail('Failed to copy test image');
         }
+        $productId = 'cfc98a9a-29b2-44c8-b587-8156adc05317';
+        $primaryPhotosCountBefore = $this->ProductPhotos->find()->where(['product_id' => $productId, 'primary_photo' => true])->count();
+        $primaryPhotoBefore = $this->ProductPhotos->find()->where(['product_id' => $productId, 'primary_photo' => true])->first();
+
+        $this->assertEquals(1, $primaryPhotosCountBefore);
+
         $image = new UploadedFile(
             $toUseFile, // stream or path to file representing the temp file
             12345,                    // the filesize in bytes
@@ -179,9 +185,10 @@ class ProductPhotosControllerTest extends BaseControllerTest
             ],
         ]);
         $data = [
-            'product_id' => 'cfc98a9a-29b2-44c8-b587-8156adc05317',
+            'product_id' => $productId,
             'product_sku_id' => '',
-            'primary_photo' => 0,
+            'primary_photo' => 1,
+            'primary_category_photo' => 1,
             'photo' => $image,
             'enabled' => 1,
         ];
@@ -191,6 +198,96 @@ class ProductPhotosControllerTest extends BaseControllerTest
 
         $cntAfter = $this->ProductPhotos->find()->count();
         $this->assertEquals($cntBefore + 1, $cntAfter);
+
+        $new = $this->ProductPhotos->find()->where(['product_id' => $productId])->orderBy(['created' => 'DESC'])->first();
+
+        $this->assertTrue($new->primary_photo);
+        $this->assertTrue($new->primary_category_photo);
+        $this->assertEquals($productId, $new->product_id);
+        $primaryPhotosCountAfter = $this->ProductPhotos->find()->where(['product_id' => $productId, 'primary_photo' => true])->count();
+        $primaryPhotoAfter = $this->ProductPhotos->find()->where(['product_id' => $productId, 'primary_photo' => true])->first();
+
+        $this->assertEquals(1, $primaryPhotosCountAfter);
+        $this->assertNotEquals($primaryPhotoBefore->id, $primaryPhotoAfter->id);
+    }
+
+    /**
+     * Test add method
+     *
+     * Tests a POST request to the add action with a logged in user
+     *
+     * @return void
+     * @throws Exception
+     *
+     * @uses \CakeProducts\Controller\ProductPhotosController::add
+     */
+    public function testAddPostLoggedInSuccessDefaultCategoryPhoto(): void
+    {
+        $cntBefore = $this->ProductPhotos->find()->count();
+
+        // $this->loginUserByRole('admin');
+        $url = [
+            'plugin' => 'CakeProducts',
+            'controller' => 'ProductPhotos',
+            'action' => 'add',
+        ];
+        $file = Configure::readOrFail('App.paths.testWebroot') . 'images' . DS . 'cake_icon.png';
+        $toUseFile = Configure::readOrFail('App.paths.testWebroot') . 'images' . DS . 'cake_icon_copy.png';
+        if (!file_exists($file)) {
+            $this->fail('Test image did not exist');
+        }
+        if (!copy($file, $toUseFile)) {
+            $this->fail('Failed to copy test image');
+        }
+        $categoryId = '6d223283-361b-4f9f-a7f1-c97aa0ca4c23';
+        $productId = 'cfc98a9a-29b2-44c8-b587-8156adc05317';
+
+        $primaryCategoryPhotosCountBefore = $this->ProductPhotos->find()->where(['product_category_id' => $categoryId, 'primary_category_photo' => true])->count();
+        $primaryCategoryPhotoBefore = $this->ProductPhotos->find()->where(['product_category_id' => $categoryId, 'primary_category_photo' => true])->first();
+
+        $this->assertEquals(1, $primaryCategoryPhotosCountBefore);
+
+
+        $image = new UploadedFile(
+            $toUseFile, // stream or path to file representing the temp file
+            12345,                    // the filesize in bytes
+            UPLOAD_ERR_OK,           // the upload/error status
+            'cake_icon.png',             // the filename as sent by the client
+            'image/png'              // the mimetype as sent by the client
+        );
+        $this->configRequest([
+            'files' => [
+                'photo' => $image,
+            ],
+        ]);
+        $data = [
+            'product_id' => $productId,
+            'product_category_id' => $categoryId,
+            'product_sku_id' => '',
+            'primary_photo' => 0,
+            'primary_category_photo' => 1,
+            'photo' => $image,
+            'enabled' => 1,
+        ];
+        $this->post($url, $data);
+        $this->assertResponseCode(302);
+        $this->assertRedirectContains('product-photos');
+
+        $cntAfter = $this->ProductPhotos->find()->count();
+        $this->assertEquals($cntBefore + 1, $cntAfter);
+
+        $new = $this->ProductPhotos->find()->where(['product_category_id' => $categoryId])->orderBy(['created' => 'DESC'])->first();
+
+        $this->assertFalse($new->primary_photo);
+        $this->assertTrue($new->primary_category_photo);
+        $this->assertEquals($categoryId, $new->product_category_id);
+
+        $primaryCategoryPhotosCountAfter = $this->ProductPhotos->find()->where(['product_category_id' => $categoryId, 'primary_category_photo' => true])->count();
+        $primaryCategoryPhotoAfter = $this->ProductPhotos->find()->where(['product_category_id' => $categoryId, 'primary_category_photo' => true])->first();
+
+        $this->assertEquals(1, $primaryCategoryPhotosCountAfter);
+        $this->assertNotEquals($primaryCategoryPhotoBefore->id, $primaryCategoryPhotoAfter->id);
+
     }
 
     /**