Hi,

You can't pass more than one 'id' to a many2one field, that’s why you are getting error.

Its seems like you need domain filter , Please Check this :- (and add a proper filter for this field :   <field name="group_id" widget="selection"/>    )

Simple condition in programming:

if field1 = 10

In OpenERP domain filter, it will be written as:

syntax : Each tuple in the domain has three fields -> (‘field_name’, ‘operator’, value)

field_name : a valid name of field of the object model or in the database table

operator : valid operators are =, !=, >, >=, <, <=, like, ilike, in, not in, child_of, parent_left, parent_right (openerp/osv/expression.py)

value : a valid value to compare with the values of field_name, depending on its type.

ie, domain = [(‘field1′,’=’,10)] # where field1 should be a field in the model and 10 will be the value

or domain = [(‘field1′,’=’,field2)] # where field1 and field2 should be the fields in the model

Condition AND

Simple condition in programming:

if field1 = 5 and field2 = 10

In OpenERP domain filter, it will be written as:

ie, domain = [(‘field1′,’=’,5),(‘field2′,’=’,10)]

or domain = [(‘field1′,’=’,field3),(‘field1′,’=’,field3)]

Note : Note that if you don’t specify any condition at the beginning and condition will be applied.

Condition OR

Simple condition in programming:

if field1 = 5 or field2 = 10

In OpenERP domain filter, it will be written as:

ie, domain = [‘|’, (‘field1′,’=’,5),(‘field2′,’=’,10)]

or domain = [‘|’, (‘field1′,’=’,field3),(‘field1′,’=’,field3)]

Multiple Condition

Simple condition in programming:

if field1 = 5 or (field2 ! = 10 and field3 = 12)

In OpenERP domain filter, it will be written as:

domain = [‘|’,(‘field1′,’=’,5),(‘&’,(‘field2′,’!=’,10),(‘field3′,’=’,’12’))]

Hope this helps........