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How to set computed one2many field in Odoo


I just want to know how to set the values in one2many by using computed field calculation. Here my code is

Python file

from openerp import models ,fields,api
from openerp import SUPERUSER_ID
from dateutil.relativedelta import relativedelta
import openerp.addons.decimal_precision as dp
import math
import logging
import datetime
class extend_product_product(models.Model):
    _inherit = 'product.product'
    monthly_lines = fields.One2many('','month_id', 'Monthy Sales',compute="_get_monthly_sales")
 def _get_monthly_sales(self):
    vals = {}
    self.write(vals) # Also I have tried self.monthly_lines = [(0,0,{'month_name_id':1,'so_qty':35})]
class minmax_monthly_data(models.Model):
    _name = ''
    month_id = fields.Many2one('product.product', 'Product Reference', select=True, required=True)
    month_name_id = fields.Many2one('minmax.months','Minmax Month',required=True)
    so_qty = fields.Float('Sales Qty', digits_compute=dp.get_precision('Product Unit of Measure'), required=True)

XML File
<?xml version="1.0" encoding="utf-8"?>
      <record model="ir.ui.view" id="product_monthly_minmax_tree">
            <field name="name">product.product.tree</field>
            <field name="model">product.product</field>
            <field name="inherit_id" ref="product.product_product_tree_view"/>
            <field name="type">form</field>
            <field name="arch" type="xml">
                <field name="ean13" position="after">
                    <field name="monthly_lines" widget="one2many_tags" />

Here I have tried to insert the data manually. The function is called properly whenever we load the product.product tree view. But there is no results. Thanks in advance.
1 Answer
Trần Ngọc Tuấn
Best Answer

I got your idea. You want to have report on monthly sales report of each and every report.
Actually, you want to CREATE (instead of UPDATE) each time you load your product.product. So, instead of self.write, you must do minmax_monthly_data.create(vals)

Anyway, your design is bad. Odoo already has sales report to show you that kind of analysis.

1 Comment

Thanks for your reply. I am creating the report in php to interconnect odoo using XML-RPC. If I am using the sales report then I need to call model for every product and every month in the db. For this complexity I am going to stored the sales details in monthly wise by one2many field. So I can get the details from The report is hold the months as column and products are comes to the rows. So I need to store those details in that computed one2many field. Any idea?

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