Hello everyone,
I created a new module 'my_module', I created a view 'cours_view.xml' and a model 'cours.py', in the model, I overloaded the unlink and create function, but when I delete a course on the web interface the unlink function that I declared in the model is not called the same for create. 

I spent the day on it, so please help me 🥸

below is the code of cours.py:

from odoo import models, fields, api
from odoo.exceptions import ValidationError

class MycustomemoduleCours(models.Model):
    _name = 'mycustomemodule.cours'
    _rec_name = 'title'
    title = fields.Char()
    description = fields.Text()


    def unlink(self):
        raise ValidationError("impossible")
        print("*************************** test customize delete****************")
        return super(MycustomemoduleCours, self).unlink()

    @api.model
    def create(self, vals):
      print("***********create customize methodes")
      return super(MycustomemoduleCours, self).create(vals)