calendar_holiday/wizard/wiz_assign_calendar_holiday_view.xml

<?xml version="1.0" encoding="UTF-8"?>
<openerp>
    <data>
        <record model="ir.ui.view" id="wiz_assign_calendar_holiday_view">
            <field name="name">wiz.assign.calendar.holiday.view</field>
            <field name="model">wiz.assign.calendar.holiday</field>
            <field name="arch" type="xml">
                <form string="Wizard for assign calendar holidays in employee contract" version="7.0">
                    <group colspan="4">
                        <field name="calendar_year" colspan="4"/>
                        <separator string="Calendar Holidays" colspan="4"/>
                        <field name="calendar_holidays_ids" nolabel="1"/>
                    </group>
                    <footer>
                        <button name="button_assign_calendar_holiday_in_contracts" type="object"
                                string="Assign calendar" class="oe_highlight" />
                        or
                        <button string="Cancel" class="oe_link"
                                special="cancel" />
                    </footer>
                </form>
            </field>
        </record>
        <act_window id="action_assign_calendar_contracts"
            key2="client_action_multi" name="Assign calendar in contracts"
            res_model="wiz.assign.calendar.holiday" src_model="hr.contract"
            view_mode="form" target="new" />
    </data>
</openerp>