Convert items->item_category[] to items->item_categodyX where X represents ID

Author: aawnu

src/Item.php

@@ -154,6 +154,28 @@ public function getRequiredParams(): array
         return $return;
     }
 
+    public function toArray(): array
+    {
+        $res = parent::toArray();
+
+        if (!isset($res['item_category'])) {
+            return $res;
+        }
+
+        $categories = $res['item_category'];
+        unset($res['item_category']);
+
+        if (is_array($categories)) {
+            foreach ($categories as $k => $val) {
+                $tag = 'item_category' . ($k > 0 ? $k + 1 : '');
+
+                $res[$tag] = $val;
+            }
+        }
+
+        return $res;
+    }
+
     public static function new(): static
     {
         return new static();

test/Unit/ItemTest.php

@@ -118,4 +118,21 @@ public function test_can_import_from_array()
         $this->assertArrayHasKey('price', $arr);
         $this->assertArrayHasKey('quantity', $arr);
     }
+
+    public function test_can_convert_item_category_to_index_names()
+    {
+        $arr = Item::new()
+            ->setItemId("123")
+            ->addItemCategory("a")
+            ->addItemCategory("b")
+            ->addItemCategory("c")
+            ->toArray();
+
+        $this->assertArrayHasKey('item_category', $arr);
+        $this->assertArrayHasKey('item_category2', $arr);
+        $this->assertArrayHasKey('item_category3', $arr);
+
+        $this->assertArrayNotHasKey('item_category0', $arr);
+        $this->assertArrayNotHasKey('item_category1', $arr);
+    }
 }