project_filter/view/project_view.xml

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

        <record id="view_project_task_activity_search1" model="ir.ui.view">
            <field name="name">project.task_activity.search1</field>
            <field name="model">project.task.activity</field>
            <field name="inherit_id" ref="project_task_activity.view_project_task_activity_search" />
            <field name="arch" type="xml">
                <search string="Activity">
                    <field name="name"/>
                    <field name="user_id"/>
                    <field name="task_id"/>
                    <field name="project_id"/>
                    <field name="state"/>
                    <filter string="Mis Actividades" domain="[('user_id','=',uid)]"/>
                    <filter string="No Asignados" name="unassigned" domain="[('user_id', '=', False)]"/>
                    <separator/>
                    <filter string="Pendiente" name="pending" domain="[('state', '=', 'pending')]"/>
                    <filter string="Realizado" name="done" domain="[('state', '=', 'done')]"/>
                    <filter string="Cancelado" name="cancel" domain="[('state', '=', 'cancel')]"/>
                    <filter string="Realizados hoy" domain="[('done_date', '&gt;=', datetime.datetime.now().strftime('%Y-%m-%d 00:00:00')),('done_date', '&lt;=',datetime.datetime.now().strftime('%Y-%m-%d 23:23:59'))]"/>
                    <filter string="Realizados semana anterior" domain="[('done_date', '&gt;=', ((context_today()+relativedelta(weeks=-2, days=1, weekday=0)).strftime('%%Y-%%m-%%d'))),('done_date', '&lt;=', ((context_today()+relativedelta(weeks=-1, weekday=6)).strftime('%%Y-%%m-%%d')))]"/>
                    <filter string="Realizados esta semana" domain="[('done_date', '&gt;=', ((context_today()+relativedelta(weeks=-1, days=1, weekday=0)).strftime('%%Y-%%m-%%d'))),('done_date', '&lt;=', ((context_today()+relativedelta(weeks=0, weekday=6)).strftime('%%Y-%%m-%%d')))]"/>
                    <group expand="0" string="">
                        <filter string="Responsable" name="User" context="{'group_by':'user_id'}"/>
                        <filter string="Estado" name="state" context="{'group_by':'state'}"/>
                        <filter string="Company" context="{'group_by':'company_id'}" groups="base.group_multi_company"/>
                        <separator/>
                        <filter string="Mes de asignacion" context="{'group_by':'planned_date:month'}" help="Fecha Planeado"/>
                    </group>
                </search>
            </field>
        </record>


    </data>
</openerp>