How to map OneToOne relationship with YAML - symfony

Question

I'm trying to create a OneToOne relationship between two tables using YAML. I'm not sure how they are supposed to communicate.
class Games
{
private $id;
private $title;
private $description;
private $img_link;
private $website_link;
private $pegi;
private $release_date;
private $requirements;
}
App\Entity\Games:
type: entity
repositoryClass: App\Repository\GamesRepository
table: games
id:
id:
type: integer
generator:
strategy: AUTO
fields:
title:
type: string
length: 255
nullable: true
description:
type: text
nullable: true
img_link:
type: text
nullable: true
website_link:
type: text
nullable: true
pegi:
type: integer
nullable: true
release_date:
type: date
nullable: true
OneToOne:
requirements:
targetEntity: App\Entity\Requirements
joinColumn:
name: requirements_fk
referencedColumnName: id
class Requirements
{
private $id;
private $os_min;
private $cpu_min;
private $ram_min;
private $hdd_min;
private $gpu_min;
private $directx_min;
private $os_req;
private $cpu_req;
private $ram_req;
private $hdd_req;
private $gpu_req;
private $directx_req;
}
App\Entity\Requirements:
type: entity
repositoryClass: App\Repository\RequirementsRepository
table: requirements
id:
id:
type: integer
generator:
strategy: AUTO
fields:
os_min:
type: string
length: 255
nullable: true
cpu_min:
type: string
length: 255
nullable: true
ram_min:
type: integer
nullable: true
hdd_min:
type: integer
nullable: true
gpu_min:
type: string
lenght: 255
nullable: true
directx_min:
type: integer
nullable: true
os_req:
type: string
length: 255
nullable: true
cpu_req:
type: string
length: 255
nullable: true
ram_req:
type: integer
nullable: true
hdd_req:
type: integer
nullable: true
gpu_req:
type: string
lenght: 255
nullable: true
directx_req:
type: integer
nullable: true
I try querying it like this, but it always returns null even though it should return an entry.
$temp = $this->getDoctrine()->getRepository(Games::class)->find($id);
$requirements = $temp->getRequirements();
I don't get any errors so, it's really hard to try and debug it. Acording to documentation it looks okay. So, not sure where the problem is.

Answer 1

If class Games is your entity you should have the method getRequirements() in there.
Try to generate the entities based on the schema if your entities are empty.
https://symfony.com/doc/current/doctrine/reverse_engineering.html

Answer 2

The key problem is that OneToOne != oneToOne in YAML.