odoo/addons/hr_holidays/hr_holidays_report.xml

<?xml version="1.0"?>
<openerp>
    <data>
        <report id="report_holidays_summary"
                string="Summary Of Leaves"
                model="hr.holidays"
                name="holidays.summary"
                xsl="hr_holidays/report/holidays_summary.xsl"
                auto="False"
                menu="False"/>




<!-- available holidays report -->

        <record id="view_report_hr_holiday_tree" model="ir.ui.view">
            <field name="name">hr.holidays.report.tree</field>
            <field name="model">hr.holidays.report</field>
            <field name="type">tree</field>
            <field name="arch" type="xml">
               <tree string="Available Holidays">
                    <field name="employee_id"/>
                    <field name="holiday_status_id"/>
                    <field name="remaining_leave"/>
                </tree>
            </field>
        </record>

        <record id="view_report_hr_holiday_form" model="ir.ui.view">
            <field name="name">hr.holidays.report.form</field>
            <field name="model">hr.holidays.report</field>
            <field name="type">form</field>
            <field name="arch" type="xml">
               <tree string="Available Holidays">
                    <field name="employee_id" select="1"/>
                    <field name="holiday_status_id" select="1"/>
                    <field name="remaining_leave"/>
                </tree>
            </field>
        </record>
        <record id="view_report_hr_holiday_graph" model="ir.ui.view">
            <field name="name">hr.holiday.report.graph</field>
            <field name="model">hr.holidays.report</field>
            <field name="type">graph</field>
            <field name="arch" type="xml">
                <graph orientation="horizontal" string="Available Holidays" type="bar">
                    <field name="holiday_status_id"/>
                    <field name="remaining_leave" operator="+"/>
                    <field group="True" name="employee_id"/>
                </graph>
            </field>
        </record>

        <record id="action_report_hr_holiday" model="ir.actions.act_window">
            <field name="name">Available Holidays</field>
            <field name="res_model">hr.holidays.report</field>
            <field name="view_type">form</field>
            <field name="view_mode">tree,graph</field>
            <field name="view_id" ref="view_report_hr_holiday_tree"/>

        </record>

        <record model="ir.actions.act_window.view" id="action_report_hr_holiday_tree">
                <field name="sequence" eval="1"/>
                <field name="view_mode">tree</field>
                <field name="view_id" ref="view_report_hr_holiday_tree"/>
                <field name="act_window_id" ref="action_report_hr_holiday"/>
            </record>


        <record model="ir.actions.act_window.view" id="action_report_hr_holiday_graph">
                <field name="sequence" eval="2"/>
                <field name="view_mode">graph</field>
                <field name="view_id" ref="view_report_hr_holiday_graph"/>
                <field name="act_window_id" ref="action_report_hr_holiday"/>
            </record>


        <menuitem name="Available Holidays" id="menu_report_hr_holiday_tree" action="action_report_hr_holiday" parent="menu_hr_reporting_holidays"/>


    </data>
</openerp>