Yep, thats the easiest answer and here is the example what we already use. 

But what is the solution for _compute_move_raw_ids and transfering details there 

Here is the example currently:

from odoo import fields, models, api

import logging

_logger = logging.getLogger(__name__)

​
class StockMove(models.Model): _inherit = "stock.move"
​width = fields.Float(string="Width", default=False,
​ ​ ​compute="_parse_from_bom_line", store=True) 

​height = fields.Float(string="Height", default=False,

​ ​​compute="_parse_from_bom_line", store=True)

@api.depends("bom_line_id") def _parse_from_bom_line(self): for move in self: ​      ​move.width = move.bom_line_id.width if move.bom_line_id else False 

​move.height = move.bom_line_id.height if move.bom_line_id else False

Hi,

Try it using the _compute_move_raw_ids function:

from odoo import fields, models, api

class StockMove(models.Model):
    _inherit = "stock.move"

    width = fields.Float(string="Width", compute="_parse_from_bom_line", store=True)
    height = fields.Float(string="Height", compute="_parse_from_bom_line", store=True)

    @api.depends("raw_material_production_id.bom_id")
    def _parse_from_bom_line(self):
        for move in self:
            if move.raw_material_production_id.bom_id:
                bom_line = move.raw_material_production_id.bom_id.bom_line_ids.filtered(
                    lambda line: line.product_id.id == move.product_id.id
                )
                move.width = bom_line.width if bom_line else False
                move.height = bom_line.height if bom_line else False
            else:
                move.width = False
                move.height = False

Hope it helps

you can try this way:

from odoo import models, fields, api

class StockMove(models.Model):

    _inherit = 'stock.move'

    width = fields.Float(string='Width', compute='_compute_bom_line_data', store=True)

    height = fields.Float(string='Height', compute='_compute_bom_line_data', store=True)

    @api.depends('raw_material_production_id.bom_id', 'product_id')

    def _compute_bom_line_data(self):

        for move in self:

            if move.raw_material_production_id.bom_id:

                bom_line = move.raw_material_production_id.bom_id.bom_line_ids.filtered(

                    lambda line: line.product_id.id == move.product_id.id)

                move.width = bom_line.width

                move.height = bom_line.height