Challenge 1 / 1

I have a ManyToOne relationship between Product and Category. What is not true about that relationship?

This same relationship can be viewed as a OneToMany from Category to Product.

Mapping the ManyToOne relationship is required, but mapping the OneToMany is optional.

If you set the inverse site of the relationship (e.g. $category->addProduct($product)), it will not save, unless you have some "smart" code inside your addProduct() method that also sets the owning side.

All of these statements are true.

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