Hi , 

I had two class :

The class Apartment :

class Apartment(models.Model):   
 _name = 'apartment'    
 _description = 'Apartment'   
 _sql_constraints = [('unique_name', 'unique(name)', 'An apartment with the same name exist')]
 name = fields.Char(string="Name")   
 description = fields.Text(string="Description")   
 image = fields.Image(max_height=500, max_width=500, string="Picture")   
 available_date = fields.Datetime(string="Available date")    
 price = fields.Integer(string="Price")

The class productApartment : 

classProductApartment(models.Model):    
    _inherit = 'product.template'
    apartment_product = fields.Many2one('apartment', string="Apartment", ondelete="cascade")

I want to dynamically computes the price of product.template with the price attribute from Apartment

How can I do that ?

Thanks in advance