advanced patterns with Lazy Loading and Inheritance in Doctrine ORM 2.x
I'm following best practices but I'm sure I'm missing something obvious here, but I'm working with an scenario with lazy loading in Doctrine ORM 2.x when dealing with an inherited entity setup... I have a base class `User` and a derived class `Admin`. The `User` class has a relationship with a `Profile` entity which is set to be lazily loaded. The question arises when I try to access the `Profile` property from an `Admin` instance. Instead of getting the profile data, I encounter a `HydrationException` stating `want to hydrate entity of type 'App\Entity\Profile' as it is not known to the EntityManager`. Here's the relevant part of my code: ```php /** @Entity */ class User { /** @Id @GeneratedValue */ private $id; /** @OneToOne(targetEntity="Profile", fetch="LAZY") */ private $profile; public function getProfile() { return $this->profile; } } /** @Entity */ class Admin extends User { // additional properties } /** @Entity */ class Profile { /** @Id @GeneratedValue */ private $id; // additional properties } ``` I have made sure that the `Profile` entity is properly registered in the Doctrine configuration. I also tried clearing the cache and verifying that the mapping files are correctly defined. However, the behavior continues. Interestingly, when I access the `Profile` property from a `User` instance, everything works fine. Is there something inherent about the inheritance model in Doctrine that might be affecting the lazy loading behavior? I've searched through the documentation but couldn't find anything that explicitly addresses this scenario. Any insights would be greatly appreciated! I'm working on a API that needs to handle this. Has anyone else encountered this? This is my first time working with Php 3.9. I'm working in a Linux environment. What's the correct way to implement this?