Hey i am preparing an attendance view in portal, i am currently able to display the record in the portal and when i click on href it calls the other template but that template is empty. I think its unable to fetch the id of the record or i dont know. Kindly help. Here is my code

.py

class AttendControl(http.Controller):
    @http.route('/my_attend_detail',type='http',auth='public',website=True)
    def attend_detail(self, **kwargs):
        attend_detail = http.request.env['op.attendance.sheet'].sudo().search([])
        return request.render('attendance_website.attend_detail_temp',{'my_attend':attend_detail})




    @http.route('/attendance_line/<int:order_id>', type='http', auth='public', website=True)
    def this_attend_detail(self,**kwargs):
        order = http.request.env['op.attendance.sheet'].sudo().search([])
        return request.render('attendance_website.my_attendance_lines', {'order': order})

    @http.route('/attendance_line/<int:order_id>', type='http', auth='public', website=True)
    def that_attend_rights(self, new_attend_detail=None):
        order = http.request.env['op.attendance.sheet'].browse()
        return request.render('attendance_website.my_attendance_lines', {'order': order})

.xml

This is href line of code for moving to the new template

<a t-attf-href="/attendance_line/{{order.id}}?{{keep_query()}}">​

Here is the template

<template id="my_attendance_lines" name="Attendance">
            <t t-call="website.layout">
                <div class="oe_structure">
                    <div class="container">
                        <br/>
                        <center>
                            <h3>Mark Attendance</h3>
                        </center>
                        <br/>
                                               <table class="table-striped table">
                            <thead style="font-size: 23px;" string="Students">
                                <tr>
                                    <h6>
                                        <b>
                                            <th>Students</th>
                                            <th>Present?</th>
                                            <th>Remark</th>
                                        </b>
                                    </h6>
                                </tr>
                            </thead>
                            <tbody>
                                <t t-foreach="order" t-as="orders">
                                    <tr>
                                        <td>
                                            <span t-esc="orders.student_id"/>
                                        </td>
                                        <td>
                                            <span t-esc="orders.present"/>
                                        </td>
                                        <td>
                                            <span t-esc="orders.remark"/>

                                        </td>
                                    </tr>
                                </t>
                            </tbody>
                        </table>
                    </div>
                </div>
            </t>
        </template>

Kindly help! thanks in advance