Error creating sale order

[Lluís Rovira Olivé]

Hi, trying to create a sale order, I am getting the following error when I select a customer:
2013-09-26 22:20:37,080 8680 ERROR penedestic openerp.osv.osv: Uncaught exception
Traceback (most recent call last):
  File "/home/openerp70/penedestic/server/openerp/osv/osv.py", line 131, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/home/openerp70/penedestic/server/openerp/osv/osv.py", line 197, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/home/openerp70/penedestic/server/openerp/osv/osv.py", line 185, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
TypeError: onchange_partner_id() takes exactly 5 arguments (6 given)
2013-09-26 22:20:37,081 8680 ERROR penedestic openerp.netsvc: onchange_partner_id() takes exactly 5 arguments (6 given)
Traceback (most recent call last):
  File "/home/openerp70/penedestic/server/openerp/netsvc.py", line 292, in dispatch_rpc
    result = ExportService.getService(service_name).dispatch(method, params)
  File "/home/openerp70/penedestic/server/openerp/service/web_services.py", line 626, in dispatch
    res = fn(db, uid, *params)
  File "/home/openerp70/penedestic/server/openerp/osv/osv.py", line 188, in execute_kw
    return self.execute(db, uid, obj, method, *args, **kw or {})
  File "/home/openerp70/penedestic/server/openerp/osv/osv.py", line 131, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/home/openerp70/penedestic/server/openerp/osv/osv.py", line 197, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/home/openerp70/penedestic/server/openerp/osv/osv.py", line 185, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
TypeError: onchange_partner_id() takes exactly 5 arguments (6 given)

OpenERP v7.0.
Ubuntu 12.04.
Thank you very much.

[Lluís Rovira Olivé (lrovira)]

To solve it, just have to add the context parameter in the method definition on_change_partner_id class sale_order.
Regards,