Hi Sudhir Arya, Thanks for your reply . I am new for OpenERP , If my question are very silly please don't mistake . I am very interest to know about OpenERP . 1. > From your point I can understand that _rec_name not needed until _name is defined . But if i create a <objectname>.py class _name is mandatory . So I must declare the _name fields . 2.> If i define _rec_name how can i make use .

This is my sample code please explain with this ...< Test.py > from osv import fields,osv class test(osv.osv): _name = 'sodexis' _rec_name = 'data_id' _columns = { 'name' : fields.char('name' , required = 1 , size = 30 ), 'age' : fields.integer('age' , store = False), 'data_id':fields.many2one('test', 'data_id', required=False) } test()

Please explain with this example , And once i thank you both for such guideline ... Thanks regards ----OMPRAKASH.A

I am talking about name field in _columns not _name. There is nothing to do with _name.

In your code you have defined name field

`name`: fields.char('name', required=1, size=30)

So you don't need to define _rec_name because OpenERP takes name field by by default.

Hi Suhir Arya , Thanks for your reply ..

Hi Prakash , Thanks for your reply . I have doubt , _name is mandatory then how can I use _rec_name ? If you explain with sample code , It make more useful for me & once again thanks for your reply

Hi omprakash, Here is the sample code.

Class Test(models.Model):

_name = 'test'

_rec_name = field_1

field_1 = fields.Many2one('object',"Field 1")

field_2 = fields.Many2one('object',"Field 2")

date = fields.Date("Date")

As you can see no "name" field is there in above model.

So here we have 2 option :

Option 1: set rec_name :- Here field which is set in rec_name works as Model name field.

Option 2: override name_get method :- We need to override name_get method.(here we can concate more than 2 fields and create name for model)

@api.multi

@api.depends('field_1', 'date')

def name_get(self):

result = []

for test in self:

name = test.field_1 + ' ' + account.date

result.append((test.id, name))

return result