calendar_holiday/views/calendar_holiday_view.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>
        <record id="calendar_holiday_tree_view" model="ir.ui.view">
            <field name="name">calendar.holiday.tree.view</field>
            <field name="model">calendar.holiday</field>
            <field name="arch" type="xml">
                <tree string="Calendar holiday">
                    <field name="name" />
                </tree>
            </field>
        </record>
        <record id="calendar_holiday_search_view" model="ir.ui.view">
            <field name="name">calendar.holiday.search.view</field>
            <field name="model">calendar.holiday</field>
            <field name="arch" type="xml">
                <search string="Search calendar holiday">
                    <field name="name" />
                </search>
            </field>
        </record>
       <record id="calendar_holiday_form_view" model="ir.ui.view">
            <field name="name">calendar.holiday.form.view</field>
            <field name="model">calendar.holiday</field>
            <field name="arch" type="xml">
                <form string="Calendar holiday">
                    <sheet>
                        <h1>
                            <field name="name" required="1"/>
                        </h1>
                        <group name="body" colspan="4" >
                            <group name="days" colspan="4">
                                <separator string="Days" colspan="4" />
                                <field name="lines" nolabel="1" colspan="4"
                                        context="{'default_calendar_holiday': active_id}">
                                    <tree string="Calendar holiday lines" editable="bottom">
                                        <field name="calendar_holiday" invisible="1"/>
                                        <field name="date" required="1"/>
                                        <field name="absence_type" required="1"/>
                                    </tree>
                                </field>
                            </group>
                        </group>
                    </sheet>
                </form>
            </field>
        </record>
        <record id="action_calendar_holiday_view" model="ir.actions.act_window">
            <field name="name">Calendar holidays</field>
            <field name="type">ir.actions.act_window</field>
            <field name="res_model">calendar.holiday</field>
            <field name="view_type">form</field>
            <field name="view_mode">tree,form</field>
        </record>
        <menuitem id="calendar_holiday_option_view" name="Calendar holidays"
                  action="action_calendar_holiday_view" 
                  parent="hr.menu_hr_configuration" sequence="80" />
    </data>
</openerp>