eiru_service/views/project_service_commission.xml

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

        <record model="ir.ui.view" id="project_service_task_button">
            <field name="name">project.service.task</field>
            <field name="model">project.service.task</field>
            <field name="inherit_id" ref="eiru_service.project_service_task_form"/>
            <field name="arch" type="xml">
                <xpath expr="//notebook/page/group[@string='Trabajo Planeado']" position="after">
                    <button name="%(action_commision_add)d"
                            type="action" class="oe_button oe_form_button oe_highlight" string="Comisión" context="{'default_task_id': id}" attrs="{'invisible': ['|',('approved','=',False),('state','!=','Preparado')]}"/>
                </xpath>
                <xpath expr="//group[@string='Facturación']" position="after">
                    <group string ="Comisiones" attrs="{'invisible': [('approved','=',False)],'readonly': [('state','!=','Preparado')]}">
                        <field name="commission_ids" nolabel="1" attrs="{'readonly': [('state','!=','Preparado')]}">
                            <tree string="Commission" editable="bottom">
                                <field name="activity_id" string="Trabajo" readonly="1"/>
                                <field name="user_id" string="Funcionario" readonly="1"/>
                                <field name="amount" string="Comisión"/>
                            </tree>
                        </field>
                    </group>
                </xpath>
                
            </field>
        </record>
        
        <record model="ir.ui.view" id="project_service_commission_form">
            <field name="name">project.service.commission.form</field>
            <field name="model">project.service.commission</field>
            <field name="arch" type="xml">
                <form string="Actividades">
                    <sheet>
                        <group>
                            <div class="oe_title oe_left">
                                <div class="oe_edit_only">
                                    <label for="activity_id" string="Trabajo"/>
                                </div>
                                <h2>
                                    <field name="activity_id" placeholder="Trabajo"/>
                                </h2>
                            </div>   
                        </group>   
                        <group>
                            <group>
                                <field name="user_id" string="Funcionario"/>
                                <field name="amount" string="Valor de la comision"/>
                            </group>
                        </group>    
                    </sheet>
                </form>
            </field>
        </record>
        
        <!-- tree view -->
        
        <record model="ir.ui.view" id="project_service_commission_tree" > 
           <field name="name">project.service.commission.tree</field>
            <field name="model">project.service.commission</field>
            <field name="arch" type="xml">
                <tree string="tareas">
                    <field name="user_id" string="Responsable"/>
                    <field name="activity_id" string="Trabajo"/>
                    <field name="task_id" string="Tarea"/>
                    <field name="amount" string="Valor de la comision"/>
                </tree>
            </field>
        </record>

        <!-- Search -->

        <record model="ir.ui.view" id="project_service_commission_search">
            <field name="name">project.service.commission.search</field>
            <field name="model">project.service.commission</field>
            <field name="arch" type="xml">
               <search string="Comisiones">
                    <field name="activity_id" string="Trabajo"/>
                    <field name="user_id" string="Responsable"/>
                    <field name="task_id" string="Tarea"/>
                    <filter string="Mis Comisiones" domain="[('user_id','=',uid)]"/>
                    <separator/>
                    <group expand="0" string="Agrupar por ">
                        <filter string="Tarea" name="task" context="{'group_by':'task_id'}"/>
                        <filter string="Responsables" name="User" context="{'group_by':'user_id'}"/>
                        <separator/>
                    </group>
                </search>
            </field>
        </record>

        <!-- action -->
        
        <record model="ir.actions.act_window" id="project_service_commission_action">
            <field name="name">Registro de comisiones</field>
            <field name="res_model">project.service.commission</field>
            <field name="view_type">form</field>
            <field name="view_mode">tree,form</field>
        </record>
        
        <!-- menus -->
        
        <menuitem name="Registro de comisiones" parent="project_main_menu" id="project_service_commission_parent_menu" sequence="4"/>
        <menuitem name="Todos los registros" parent="project_service_commission_parent_menu" id="project_service_commission_all_menu" sequence="1" action="project_service_commission_action"/>
    </data>
</openerp>