The function "Write" after new o2m record don't update form and don't be saved

[David Diz]

class A(osv.osv):
    _name="A"

    def write(self, cr, uid, ids, vals, context=None):
        eval = vals.get('b_ids', 0)
        for item in eval:
            vals['state_a'] = eval[i][2]['state_b']
        return super(A, self).write(cr, uid, ids, vals, context)

    _columns={
        "name": fields.char('Name', size=25 ),
        "b_ids": fields.one2many('B', 'a_id', 'Evals' ),
        "state_a": fields.selection([("O","Open"), ("C","Close")], 'State'),
        }
A()

class B(osv.osv):
    _name='B'

    _columns={
        "name": fields.char('Name', size=25 ),
        "a_id": fields.many2one('A'),
        "state_b": fields.selection([("O","Open"), ("C","Close")], 'State'),
        }

    _defaults = {
        'a_id': lambda self, cr, uid, context: context.get('a', False),
    }

B()

-In the form of the A object i have a o2m grid with its B objects.
-Now i create a new B object from the grid.
-The write function of the A object is called and the new value of "state" is stored in the database but not displayed in the form.
-If i press the cancel button of the form the new value of the "state" field is displayed but if i press the save button the new value is deleted from the database and not displayed in the saved form.

This behavior does not happen in the GTK client.

[DBR (OpenERP) (dbr-openerp)]

class A(osv.osv):
    _name="A"

    def write(self, cr, uid, ids, vals, context=None):
        eval = vals.get('b_ids', 0)
        for item in eval:
            vals['state_a'] = eval[i][2]['state_b']
        return super(A, self).write(cr, uid, ids, vals, context)

    _columns={
        "name": fields.char('Name', size=25 ),
        "b_ids": fields.one2many('B', 'a_id', 'Evals' ),
        "state_a": fields.selection([("O","Open"), ("C","Close")], 'State'),
        }
A()

class B(osv.osv):
    _name='B'

    _columns={
        "name": fields.char('Name', size=25 ),
        "a_id": fields.many2one('A'),
        "state_b": fields.selection([("O","Open"), ("C","Close")], 'State'),
        }

    _defaults = {
        'a_id': lambda self, cr, uid, context: context.get('a', False),
    }

B()

-In the form of the A object i have a o2m grid with its B objects.
-Now i create a new B object from the grid.
-The write function of the A object is called and the new value of "state" is stored in the database but not displayed in the form.
-If i press the cancel button of the form the new value of the "state" field is displayed but if i press the save button the new value is deleted from the database and not displayed in the saved form.

This behavior does not happen in the GTK client.