from openerp.osv import osv, fields

class cvs_quotations(osv.osv): _name = "cvs.quotations"

def GetDataDoorssystem(self, cr, uid, context=None):
    product_category_obj = self.pool.get('product.category')
    ids = product_category_obj.search(cr, uid, [])
    datas = product_category_obj.read(cr, uid, ids, ['id', 'name'], context)
    return [(r['id'], r['name']) for r in datas]

_columns = {
    "saleordercode": fields.char("Sale order Code", translate=True),
    "doorsystem": fields.selection(GetDataDoorssystem, "Chọn hệ cửa", translate=True),
}

cvs_quotations()

when i execute this class ,it error : 'NoneType' object has no attribute 'search' .Because self.pool.get('product.category') is none .Can you help me ?

Thanks hungnt skype:lamabao_lovely