Challenge 2 / 2

I'm trying to relate a Product object to a Category... but it's not working. What's wrong with my code?

$category = new Category();
// ...

$product->setCategory($category->getId());

$entityManager->persist($product);
$entityManager->persist($category);

$entityManager->flush();

The $category needs to be persisted first so that its id is available to be set onto $product.

$product->setCategory() should be passed a Category object, not the id.

$product->setCategory($category->getId()); needs to be called after the $category has been saved to the database.

Rewatch the video