hr_holiday_code/data/hr_holidays_sequence.xml
<?xml version="1.0" encoding="UTF-8" ?>
<openerp>
<data noupdate="1">
<record id="leave_request_sequence_type" model="ir.sequence.type">
<field name="name">Leave Request Type</field>
<field name="code">hr.holidays.lvr</field>
</record>
<record id="leave_request_sequence" model="ir.sequence">
<field name="name">Leave Request</field>
<field name="code">hr.holidays.lvr</field>
<field eval="4" name="padding" />
<field name="prefix">LVR</field>
</record>
<record id="allocation_request_sequence_type" model="ir.sequence.type">
<field name="name">Allocation Request Type</field>
<field name="code">hr.holidays.alr</field>
</record>
<record id="allocation_request_sequence" model="ir.sequence">
<field name="name">Allocation Request</field>
<field name="code">hr.holidays.alr</field>
<field eval="4" name="padding" />
<field name="prefix">ALR</field>
</record>
</data>
</openerp>