GOLEM/golem_activity_registration_slot/views/golem_activity_views.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
Copyright 2018 Youssef El Ouahby <youssef@yaltik.com>
Copyright 2018 Fabien Bourgeois <fabien@yaltik.com>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
-->

<odoo>
  <data>
    <!-- Forms -->
    <record id="golem_activity_form_inherit_golem_activity_registration_slot"
      model="ir.ui.view">
     <field name="name">Add registration slot to activity form</field>
     <field name="model">golem.activity</field>
     <field name="inherit_id" ref="golem_activity.golem_activity_form" />
     <field name="arch" type="xml">
       <field name='list_price' position='after'>
         <field name='individual_slots'/>
       </field>
       <page name='activity_others' position='before'>
         <page name='individual_slots_tab' string='Individual Slots'
           attrs="{'invisible': [('individual_slots', '!=', True)]}">
           <group>
             <field name='slots_number'/>
             <field name='slots_duration' widget='float_time'/>
             <field name='registration_slot_ids'>
               <tree editable='bottom'>
                 <field name="member_id"/>
                 <field name='hour_start' widget='float_time'/>
                 <field name='hour_stop' widget='float_time'/>
               </tree>
             </field>
           </group>
         </page>
       </page>
     </field>
   </record>
  </data>
</odoo>