fix(product): Add metadata to property to product category data model (#8766)

* fix: Add metadata to property to product category data model

* chore: Add migration for adding metadata column to product category

* chore: Added test for product category metadata

integration-tests/http/__tests__/product-category/admin/product-category.spec.ts

@@ -175,6 +175,26 @@ medusaIntegrationTestRunner({
           })
         )
       })
+
+      it('gets the metadata of a category', async () => {
+        await api.post(
+          `/admin/product-categories/${productCategory.id}`,
+          {
+            metadata: {
+              test: "test"
+            },
+          },
+          adminHeaders
+        )
+
+        const response = await api.get(
+          `/admin/product-categories/${productCategory.id}`,
+          adminHeaders
+        )
+
+        expect(response.status).toEqual(200)
+        expect(response.data.product_category.metadata).toEqual({ test: "test" })
+      })
     })
 
     describe("GET /admin/product-categories", () => {

packages/modules/product/src/migrations/Migration202408271511.ts

@@ -0,0 +1,15 @@
+import { Migration } from "@mikro-orm/migrations"
+
+export class Migration202408271511 extends Migration {
+  async up(): Promise<void> {
+    this.addSql(
+      'alter table if exists "product_category" add column if not exists "metadata" jsonb;'
+    );
+  }
+
+  async down(): Promise<void> {
+    this.addSql(
+      'alter table if exists "product_category" drop column if exists "metadata";'
+    );
+  }
+}

packages/modules/product/src/models/product-category.ts

@@ -112,6 +112,9 @@ class ProductCategory {
   @Property({ columnType: "timestamptz", nullable: true })
   deleted_at?: Date
 
+  @Property({ columnType: "jsonb", nullable: true })
+  metadata?: Record<string, unknown> | null
+
   @ManyToMany(() => Product, (product) => product.categories)
   products = new Collection<Product>(this)