server-tools/database_cleanup/view/purge_columns.xml

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

        <record id="purge_columns_view" model="ir.ui.view">
            <field name="name">Form view for purge columns wizard</field>
            <field name="model">cleanup.purge.wizard.column</field>
            <field name="arch" type="xml">
                <form string="Purge columns" version="7.0">
                    <h1>
                        <field name="name"/>
                    </h1>
                    <button type="object" name="purge_all" string="Purge all columns" />
                    <field name="purge_line_ids" colspan="4" nolabel="1">
                        <tree string="Purge columns">
                            <field name="name" />
                            <field name="model_id" />
                            <field name="purged" invisible="0" />
                            <button type="object" name="purge"
                                    icon="gtk-cancel" string="Purge this column"
                                    attrs="{'invisible': [('purged', '=', True)]}"/>
                        </tree>
                    </field>
                </form>
            </field>
        </record>

        <record id="action_purge_columns" model="ir.actions.act_window">
            <field name="name">Purge columns</field>
            <field name="type">ir.actions.act_window</field>
            <field name="res_model">cleanup.purge.wizard.column</field>
            <field name="view_type">form</field>
            <field name="view_mode">form</field>
        </record>

    </data>
</openerp>