Foreign key and cascade problems on delete Symfony4/Doctrine - php

Question

I want to delete a property with my user but I have the following error :
An exception occurred while executing 'DELETE FROM property WHERE id = ?' with params [1]:
SQLSTATE[23000]: Integrity constraint violation: 1451 Cannot delete or update a parent row: a foreign key constraint fails (gestImmo.equipment, CONSTRAINT FK_D338D583517FE9FE FOREIGN KEY (equipment_id) REFERENCES property (id))
I googled it and (I think) it's a cascade problem. So I searched on forums but I didn't solved the problem. I asked for help to an experimented coworker but we didn't fix the mistake ... Hope you could help me.
In my User entity there is :
/**
* #ORM\OneToMany(targetEntity="App\Entity\Property", mappedBy="userProperty")
*/
private $properties;
In my property Entity there is :
/**
* #ORM\ManyToOne(targetEntity="App\Entity\User", inversedBy="properties")
* #JoinColumn(name="id", referencedColumnName="id", onDelete="CASCADE")
*/
private $userProperty;
/**
* #ORM\OneToMany(targetEntity="App\Entity\Equipment", mappedBy="equipment")
* #JoinColumn(name="id", referencedColumnName="equipement_id", onDelete="CASCADE")
*/
private $equipments;
and in my equipments entity there is :
/**
* #ORM\ManyToOne(targetEntity="App\Entity\Property", inversedBy="equipments")
* #Assert\Type("string")
* #var string
*/
private $equipment;
Thanks for your help !

Answer 1

Setting the onDelete="CASCADE" in your manyToOne annotation should be enough.
Don't forget to bin/console make:migration after that. Everything you change in your ORM must be migrated in order to apply the changes into the database.

Answer 2

You cannot delete property because it is referenced in column equipment_id in table equipment. This foreign key constraint means that equipment.equipment_id must point to a valid(existing) id of property - property.id.
If you want to delete property, then before that you either:
Delete equipment records where equipment_id = {id of property you want to delete}
Or change those equipment_id to null
EDIT
Looks like your annotations are incorrect. If I understood your relations correctly, then it should be something like this.
Property entity:
/**
* #ORM\ManyToOne(targetEntity="App\Entity\User", inversedBy="properties")
* #JoinColumn(name="user_property_id", referencedColumnName="id", onDelete="CASCADE")
*/
private $userProperty;
/**
* #ORM\OneToMany(targetEntity="App\Entity\Equipment", mappedBy="equipment")
*/
private $equipments;
Equipment entity:
/**
* #ORM\ManyToOne(targetEntity="App\Entity\Property", inversedBy="equipments")
* #ORM\JoinColumn(name="equipment_id", referencedColumnName="id", onDelete="CASCADE")
*/
private $equipment;