odoo/addons/crm_partner_assign/res_partner_demo.xml

<?xml version="1.0" encoding="UTF-8"?>
<openerp>
    <data>
        <record id="res_partner_grade_bronze" model="res.partner.grade">
            <field name="name">Bronze</field>
            <field name="sequence">1</field>
        </record>
        <record id="res_partner_grade_silver" model="res.partner.grade">
            <field name="name">Silver</field>
            <field name="sequence">2</field>
        </record>
        <record id="res_partner_grade_gold" model="res.partner.grade">
            <field name="name">Gold</field>
            <field name="sequence">3</field>
        </record>
        <record id="res_partner_grade_platinium" model="res.partner.grade">
            <field name="name">Platinum</field>
            <field name="sequence">4</field>
        </record>

        <record id="base.res_partner_15" model="res.partner">
            <field name="grade_id" ref="res_partner_grade_bronze"/>
            <field name="partner_weight">10</field>
        </record>

        <record model="res.partner" id="base.res_partner_13">
            <field name="assigned_partner_id" eval="ref('base.res_partner_15')"/>
        </record>

       <record id="base.res_partner_3" model="res.partner">
            <field name="grade_id" ref="res_partner_grade_bronze"/>
            <field name="partner_weight">10</field>
        </record>

        <record id="base.res_partner_5" model="res.partner">
            <field name="grade_id" ref="res_partner_grade_bronze"/>
            <field name="partner_weight">10</field>
        </record>

    </data>
</openerp>