invoice_template.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>

        <record id="view_invoice_template_line_tree" model="ir.ui.view">
            <field name="name">account.invoice.template.line.tree</field>
            <field name="model">account.invoice.template.line</field>
            <field name="arch" type="xml">
                <tree string="Invoice Template Line">
                    <field name="product_id"/>
                    <field name="sequence"/>
                    <field name="name"/>
                    <field name="account_id" />
                    <field name="analytic_account_id" groups="analytic.group_analytic_accounting"/>
                    <field name="type"/>
                    <field name="python_code"/>
                </tree>
            </field>
        </record>


        <record id="view_invoice_template_line_form" model="ir.ui.view">
            <field name="name">account.invoice.template.line.form</field>
            <field name="model">account.invoice.template.line</field>
            <field name="arch" type="xml">
                <form string="Invoice Template Line">
                    <field name="product_id" on_change="product_id_change(product_id, parent.type)"/>
                    <field name="name" select="1"/>
                    <field name="sequence"/>
                    <field name="account_id" />
                    <field name="analytic_account_id" groups="analytic.group_analytic_accounting"/>
                    <field name="type"/>
                    <separator string="Python Code" colspan="4"/>
                    <field name="python_code" colspan="4" attrs="{'readonly': [('type', '!=', 'computed')]}" nolabel="1"/>
                    <label string="You can refer to other lines using their sequence number (e.g. 'L(1)' for first line). Examples of code: 'L(1) * 0.2'; 'L(2) - L(1)'; 'L(1) + L(2) + L(3)'; '1250'" colspan="4"/>
                    <field name="invoice_line_tax_id" colspan="4"  nolabel="1"/>
                </form>
            </field>
        </record>

        <record id="view_invoice_template_form" model="ir.ui.view">
            <field name="name">account.invoice.template.form</field>
            <field name="model">account.invoice.template</field>
            <field name="arch" type="xml">
                <form string="Invoice Template">
                    <field name="name"/>
                    <field name="partner_id"/>
                    <field name="account_id" />
                    <field name="type" />
                    <field colspan="4" nolabel="1" name="template_line_ids"/>
                </form>
            </field>
        </record>

        <record id="view_invoice_template_tree" model="ir.ui.view">
            <field name="name">account.invoice.template.tree</field>
            <field name="model">account.invoice.template</field>
            <field name="arch" type="xml">
                <tree string="Invoice Template">
                    <field name="name"/>
                    <field name="partner_id"/>
                    <field name="account_id" />
                    <field name="type" />
                </tree>
            </field>
        </record>

        <record id="view_invoice_template_search" model="ir.ui.view">
            <field name="name">account.invoice.template.search</field>
            <field name="model">account.invoice.template</field>
            <field name="arch" type="xml">
                <search string="Invoice Template">
                  <group>
                      <field name="name"/>
                      <field name="partner_id" />
                      <field name="account_id" />
                    <field name="type" />
                    </group>
                    <newline/>
                    <group expand="0" string="Group By...">
                      <filter string="Partner" icon="terp-folder-orange" domain="[]" context="{'group_by':'partner_id'}"/>
                    </group>
                </search>
            </field>
        </record>

        <record id="action_invoice_template_form" model="ir.actions.act_window">
            <field name="name">Invoice Templates</field>
            <field name="res_model">account.invoice.template</field>
            <field name="view_type">form</field>
            <field name="view_mode">tree,form</field>
            <field name="search_view_id" ref="view_invoice_template_search"/>
        </record>
        <menuitem
            action="action_invoice_template_form" id="menu_action_invoice_template_form" sequence="5"
            parent="account.menu_configuration_misc" groups="account.group_account_manager"/>
    </data>
</openerp>