Hello,

I'm try to create Invoive copy receipt from POS screesn. but when I try to print bill I got this error.

NoneType' object is not callable" while evaluating 'get_journal_amt(o)' 

 import time

from openerp.osv import osv

from openerp.report import report_sxw

def titlize(journal_name):
    words = journal_name.split()
    while words.pop() != 'journal':
        continue
    return ' '.join(words)

class family_order(report_sxw.rml_parse):

    def __init__(self, cr, uid, name, context):

        super(family_order, self).__init__(cr, uid, name, context=context)
        user = self.pool['res.users'].browse(cr, uid, uid, context=context)
        partner = user.company_id.partner_id
        self.localcontext.update({
            'time': time,
            # 'disc': self.discount,
            'net_amount': self._netamount,
            'get_journal_amt': self._get_journal_amt,
            # 'get_journal_amt': self._get_journal_amt,
            'address': partner or False,
            'titlize': titlize
        })


    def _netamount(self):


         res = {'name': 'hello'}
        return res

    def _get_journal_amt(self, order_id):
        data={}
        sql = """ select aj.name,absl.amount as amt from account_bank_statement as abs
                        LEFT JOIN account_bank_statement_line as absl ON abs.id = absl.statement_id
                        LEFT JOIN account_journal as aj ON aj.id = abs.journal_id
                        WHERE absl.pos_statement_id =100"""
        self.cr.execute(sql, order_id)
        data = self.cr.dictfetchall()
        return data

class bill_copy_report(osv.AbstractModel):

    _name = 'report.point_of_sale.bill_copy'
    _inherit = 'report.abstract_report'
    _template = 'point_of_sale.bill_copy'
    _wrapped_report_class = family_order
# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
# -*- coding: utf-8 -*-

############################################################################## 

<?xml version="1.0" encoding="utf-8"?> 
<openerp> 
<data>

<template id="bill_copy">

    <t t-call="report.html_container">

        <t t-foreach="docs" t-as="o">

            <div class="page">

                <div class="row">

                    <div class="col-xs-12 text-center">

                       <span t-field="o.table_id"/>

                        Hello

                        <table class="table table-condensed">

                            <thead>

                                <tr>

                                    <th>Description</th>

                                    <th class="text-right">Quantity</th>

                                    <th class="text-right">Price</th>

                                </tr>

                            </thead>

                            <!--<tbody>-->

                                <!--&lt;!&ndash;<tr t-foreach ="o.lines" t-as="line">&ndash;&gt;-->

                                    <!--&lt;!&ndash;<td><span t-field="line.name"/></td>&ndash;&gt;-->

                                <!--&lt;!&ndash;</tr>&ndash;&gt;-->



                                <!--<tr t-foreach="net_amount()" t-as="d">-->

                                    <!--<td>-->

                                        <!--<span t-esc="d['product_id']"/>-->

                                    <!--</td>-->

                                <!--</tr>-->



                            <!--</tbody>-->

                            <tbody>

                        <tr t-foreach="get_journal_amt(o)" t-as="d">

                            <td>

                                <span t-esc="d['name']"/>

                            </td>

                            <td>

                                <span t-esc="formatLang(d['amt'], currency_obj=res_company.currency_id)"/>

                            </td>

                        </tr>

                    </tbody>

                        </table>

                    </div>

                </div>

            </div>

        </t>

    </t>

</template>

</data>

</openerp>

Anyone know how to resolve this ?

Thank you...