Odoo Help


Get value from many2one relationship ?

Trai Doan
on 11/25/14, 10:29 PM 2,529 views

My codes :

class name(osv.osv):
                  'so':fields.integer('So luong'),

class first_model(osv.osv):

class second_model(osv.osv):
        def onchange_cost(self,cr,uid,ids,name2,context=None):
            if name2:
                if record:
                    print record.name1
                    if recor_id:
                        print rec.cost


My problem is when i try to get cost from name.model it always return empty .I check value of record.name1 and its look like : name.model(3,) or name.model(5,) .How can i get cost from name.model .Please help me to solve this .Thank you :)) 

Sorry for bad english :((



Baiju KS

--Baiju KS--
| 5 5 8
Kochi, India
--Baiju KS--
ODOO technical

        I like learning new thing, especially technical thing. I am a quick learner, I can learn technical things very fast. I have good logical skill,  I have immense interest in programming.

e-mail id : baijuks@hotmail.com

Baiju KS
On 11/25/14, 11:32 PM

Try this:-


please let me know if problem get solved.

Thank for your help :)) .Problem solved .

Trai Doan
on 11/25/14, 11:56 PM

Emipro Technologies Pvt. Ltd.

--Emipro Technologies Pvt. Ltd.--
| 6 7 8
Rajkot, India
--Emipro Technologies Pvt. Ltd.--

Being an emerging leader in IT market since 2011, Emipro Technologies Pvt. Ltd. has been providing a wide range of business solutions in Odoo & Magento. We are pleased to have a large pool of contented customers with our meticulous work in the domain of ERP & e-Commerce. A ray of relief & satisfaction to  our customers heart by our successful deployment in their organization, purely represents our success in Odoo platform. Hence, we take pride for being an Odoo partner with a vision of expanding our strategic alliances with our customers to offer them high value-added, trustworthy & cost effective solutions.


Since establishment, our business has span across 11 countries of the world. Our customers are companies of all sizes ranging from start-ups to large enterprises, who realize that they need a professional business solutions to generate revenue streams, establish proper communication channels or streamline business operations. Standing with strong determination of customer satisfaction, observing each minute detail of their business processes, providing proper guidance and moving forth to develop product accordingly adds our value and reliability among our customers. 


We are blessed with efficient, passionate & eclectic young developers who have come across almost all kinds of business profiles, working with full dedication, applying creativity & new features in existing modules and completing customer's projects successfully on predefined target. Our in-depth knowledge while giving business solutions in Odoo allows us to offer following services to our customers :


  • Consulting
  • Installation, Configuration & Customization
  • Training & Support
  • Maintenance
  • Upgradation
  • Documentation
  • Crafting community modules
  • Drafting videos on demand
  • Smart Apps development

We will be :) to welcome you @ www.emiprotechnologies.com to solve any kind of your business needs around Odoo. However we are just an inch away from you by email info@emiprotechnologies.com or a tweet to @EmiproTech

Emipro Technologies Pvt. Ltd.
On 11/26/14, 12:01 AM

Hello Trian

Try this

def onchange_cost(self,cr,uid,ids,name2,context=None):
    name_model_cost = 0.00
    if name2:

        obj_first_model = self.pool.get('first.model')
        br_first_model =    obj_first_model.browse(cr,uid,name2,context=context)
        name_model_cost = br_first_model.name1 and br_second_model.name1.cost or 0.0

    return {'value':{'cost':name_model_cost}}

Hope this helps !!!

About This Community

This platform is for beginners and experts willing to share their Odoo knowledge. It's not a forum to discuss ideas, but a knowledge base of questions and their answers.


Odoo Training Center

Access to our E-learning platform and experience all Odoo Apps through learning videos, exercises and Quizz.

Test it now

Question tools

2 follower(s)


Asked: 11/25/14, 10:29 PM
Seen: 2529 times
Last updated: 6/7/16, 7:41 AM