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How to override BaseModel or Model class of orm.py?

on 11/14/13, 6:23 AM 2,382 views

I wanna change something in export_data function then I wanna override BaseModel class. But really don't know how to override this? I try to copy a file file orm.py and fix import but the it not call in side this file.


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On 11/14/13, 6:56 AM

First you have to inherit the class BaseModel and then can override the method.

Try this:

class Extend_BaseModel(BaseModel):
    def export_data(self, cr, uid, ids, fields_to_export, context=None):
        #Your code
        #You may call super also if you want like this: super(Extend_BaseModel, self).export_data(cr, uid, ids, fields_to_export, context=context)
        #Your code

Hope this will help you and solve you problem.


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Mohamed Essakali
On 2/23/15, 6:40 PM

I achieve overriding BaseModel methods in V7 :

1- create a new python file my_basemodel.py

2- add your custom methods like this

from openerp.osv.orm import BaseModel

def my_method(self, cr, uid, ids, context=None):


BaseModel.method = my_method    # Method is referring to an ORM methode (read, unlink, export_data, ...)

3- save the file and add it to __init__.py

4- Restart your server

Mohamed Mtloob
On 1/27/15, 5:19 AM

Dear Sir

it's not worked for me as seen this error

except_orm: ('ValueError', 'The class Extend_BaseModel has to have a _name attribute')

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Asked: 11/14/13, 6:23 AM
Seen: 2382 times
Last updated: 3/16/15, 8:10 AM