Hey guys ,

I have field.function that shows the right value i want however when i try to display this value in the point of sake(through my own customization) nothing shows , i believe this is because my field.function is not stored :

class cm_product_template(osv.osv):

     _name = 'product.template'

     _inherit = "product.template"

    def _get_invoice_company(self, cr, uid, ids, field, parameter, context=None):

    #def _get_invoice_company(self, cr, uid, ids , context=None):

           context = context or {}

           invoice = {}

           #period_obj3 = self.pool.get('product.template')

           for auto1 in self.browse(cr, uid, ids, context=context):

               prod_temp_id = auto1.id

               print prod_temp_id

               # cr.execute("SELECT id FROM pp_feature WHERE plan = %d" %(featurename) )

               cr.execute("""SELECT f.name FROM product_template pt INNER JOIN product_product pp on pp.product_tmpl_id = pt.id INNER JOIN account_analytic_invoice_line aal on aal.product_id = pp.id INNER JOIN account_analytic_account aaa on aaa.id = aal.analytic_account_id INNER JOIN res_company f on f.id = aaa.invcompany_id WHERE pp.product_tmpl_id = %s""", % (prod_temp_id,) )

               # res = cr.fetchall()

               res = cr.fetchone()

               print res

               invoice.update({prod_temp_id : res and res[0] or False })

    return invoice

    _columns = {

        'cm_property_ids': fields.one2many('cm.property', 'product_template_id', 'Products') ,

        'invoice_company':fields.function(_get_invoice_company , type='integer' , store=True, method=True ,string='Invoice Company')

        }

# example od function you can use in defaults
    def _get_default_invoice_company(self, cr, uid, context=None):

        context = context or {}

        # do your treatment here

        company_id = False

        return company_id

     _defaults = {

        'invoice_company': _get_default_invoice_company ,

        }

When i add store=True i get this error :  

File "/opt/odoo/odoo/openerp/models.py", line 2399, in _set_default_value_on_column

default = default(self, cr, SUPERUSER_ID, context)

TypeError: _get_invoice_company() takes at least 6 arguments (4 given)

I am confused why i cant store the function value field in the database  any ideas to get passed this ?