Hi, 

I have two new models I added :

    class Model1(models.Model):
        _name = 'model1'
        _description = 'model1'

        name = fields.Char(string='Nom')
        category = fields.Many2many('model2', string='model2')


    class Model2(models.Model):
        _name = 'model2'
        _description = 'model2'
        name = fields.Char(string='Nom')


 
Model1 can contain many model2, and model2 can be contained in different model1.

On my hr.employee model, I would like my user to select a model1, then display a list of model2 according to the model1, in order to make him select one of these model2.
How can I achieve that ?
I already tried domains, but it does not seem to work with domain.