I have a problem with 2 modules in Odoo, the first is my auxiliary module that stores the price per kilo of each beef:

from odoo import api, fields, models

class LivestockPrice(models.Model):
 _inherit = ['mail.thread', 'mail.activity.mixin']
 _name = 'price.pound'
 _description = "New pound price"
 _order = 'date_pound desc'

 name = fields.Char(string="New")
 active = fields.Boolean(string="Active", default=True)
 cow_id = fields.Many2one(
 'livestock.model',
 string="Beef identifier",
 required=True
 )
date_pound = fields.Date(
 string="New price date",
 required=True,
 default=fields.Date.today()
 )
 price_import = fields.Monetary(string="Price per kilo", required=True, tracking=True)
 type_cow = fields.Selection(
 related='cow_id.type_cow',
 string="Type of livestock",
 readonly=False,
 store=True,
 required=True
 )

What I want is to record prices per pound on a certain date and according to the type of cattle, that is, it stores several prices per pound according to the type_cow, now, this is my main model:

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


class LivestockModel(models.Model):

 _name = 'livestock.model'
 _inherit = ['mail.thread', 'mail.activity.mixin']
 _description = 'New cattle from the agricultural and livestock farm created'
 _order = 'date_create desc'
 _rec_name = 'cow_id'
 _order = 'cow_id asc'
 cow_id = fields.Char(
 required=True,
 string="Beef identifier",
 tracking=True
 )
 weight_cow = fields.Float(
 string="Current weight",
 tracking=True,
 store=True
 )
 other_model = fields.Many2one('price.pound', string="Price per pound")
 price_actually = fields.Monetary(
 compute="_compute_price_actually",
 string="Current price per kilo",
 store=True
 )
 price_import = fields.Monetary(
 related="other_model.price_import",
 string="Price per kilo",
 store=True
 )
 price_total = fields.Monetary(
 compute="_compute_cost_import",
 string="Amount",
 store=True
 )
 type_cow = fields.Selection([
 ('Steer', 'Steer of meat'),
 ('Heifer', 'Beef Heifer')
 ], string="Type of livestock:", required=True)
 @api.depends('weight_cow', 'other_model.price_import')
 def _compute_cost_import(self):
 """This function calculates the amount of each beef"""
 for record in self:
 price_import_record = self.env['price.pound'].search(
 [('type_cow', '=', record.type_cow)], order='date_pound desc', limit=1)
 if record.weight_cow and price_import_record:
 record.price_total = record.weight_cow * price_import_record.price_import
 else:
 record.price_total = 0.0 

As you can see, in my livestock.model I use my own type_cow for that model, what I am looking for is to calculate the amount for each cow according to the type of livestock, which is type_cow, but I have a problem, it does it but only when I enter a new peso, which it shouldn’t be, because it should be calculated automatically when I enter a new price per pound or a new peso. You must do the calculation whenever a new price_import or weight record is introduced in that model.