orden_cobro/orden_cobro_view.xml

<?xml version="1.0"?>
<openerp>
    <data>

        <!-- Vista formulario principal orden.cobro -->
        <record id="view_orden_cobro_form" model="ir.ui.view">
            <field name="name">orden.cobro.form</field>
            <field name="model">orden.cobro</field>
            <field name="type">form</field>
            <field name="arch" type="xml">
                <form string="Orden de Cobro">
                    <sheet>
                        <group>
                            <group>
                                <field name="name" readonly="1"/>
                                <field name="partner_id" required="1"/>
                                <field name="celular_partner" readonly="1"/>
                                <field name="obra"/>
                                <field name="concepto"/>
                                <field name="is_efec"/>
                                <field name="is_cheq"/>
                                <field name="cheque_banco"/>
                                <field name="transf_nro"/>
                                <field name="comp_nro"/>
                                <field name="user_id" readonly="1"/>
                            </group>
                            <group>
                                <field name="date" required="1"/>
                                <field name="ruc_partner" readonly="1"/>
                                <field name="telefono_partner" readonly="1"/>
                                <field name="presupuesto_nro"/>
                                <field name="currency_id" readonly="1"/>
                                <field name="responsable"/>
                                <field name="cheque_nro"/>
                                <field name="is_transf"/>
                                <field name="transf_banco"/>
                                <field name="cta_nro"/>
                                <field name="solicitado_por"/>
                            </group>
                        </group>

                        <group>
                            <field name="obs"/>
                        </group>

                          <!-- <notebook>
                              <page>
                                <field name="invoice_line_ids">
                                   <tree editable="top">
                                       <field name="invoice_id" string="Número de factura" />
                                       <field name="invoice_number" string="Número de factura" />
                                        <field name="invoice_total" string="Saldo" sum="Saldo" />
                                        <field name="monto_cobrado" string="Total a cobrar" sum="Total" />
                                    </tree>
                                </field>
                                </page>
                            </notebook> -->

                            <notebook>
                                 <page string="Facturas a cobrar">
                                     <field name="invoice_line_ids">
                                         <tree editable="bottom">
                                             <field name="invoice_id"
                                                 domain="[('partner_id', '=', parent.partner_id), ('state', '=', 'open'), ('type', '=', 'out_invoice')]"/>
                                            <field name="invoice_number" string="Nº factura" />
                                            <field name="invoice_date" string="Fecha"/>
                                            <field name="invoice_total" string="Saldo" sum="Saldo" />
                                            <field name="monto_cobrado" string="Total a cobrar" sum="Total" />
                                            <field name="invoice_state" string="Estado"/>
                                         </tree>
                                     </field>
                                 </page>
                             </notebook>
                        <group>
                            <field name="total" readonly="1"/>
                        </group>
                    </sheet>
                </form>
            </field>
        </record>

        <record id="search_orden_cobro" model="ir.ui.view">
            <field name="name">orden.cobro.search</field>
            <field name="model">orden.cobro</field>
            <field name="arch" type="xml">
                <search string="Órdenes de Cobro">
                    <field name="partner_id" string="Cliente"/>
                    <field name="obra"/>
                    <field name="date" string="Fecha"/>

                    <filter string="Con Factura" name="con_factura"
                            domain="[('invoice_line_ids.invoice_number', '!=', False)]"/>

                    <group expand="0" string="Agrupar por">
                        <filter string="Cliente" name="group_by_partner" context="{'group_by':'partner_id'}"/>
                        <filter string="Fecha" name="group_by_date" context="{'group_by':'date'}"/>
                        <filter string="Obra" name="group_by_obra" context="{'group_by':'obra'}"/>
                    </group>
                </search>
            </field>
        </record>

        <!-- Acción -->
        <record id="action_orden_cobro" model="ir.actions.act_window">
            <field name="name">Órdenes de Cobro</field>
            <field name="res_model">orden.cobro</field>
            <field name="view_type">form</field>
            <field name="view_mode">tree,form</field>
            <field name="search_view_id" ref="search_orden_cobro"/>
        </record>

        <!-- Vista Árbol Orden de Pago -->
        <record id="view_orden_cobro_tree" model="ir.ui.view">
            <field name="name">orden.cobro.tree</field>
            <field name="model">orden.cobro</field>
            <field name="arch" type="xml">
                <tree>
                    <field name="name"/>
                    <field name="partner_id"/>
                    <field name="date"/>
                    <field name="obra"/>
                    <field name="concepto"/>
                    <field name="total"/>
                </tree>
            </field>
        </record>

        <record id="search_orden_cobro_line" model="ir.ui.view">
               <field name="name">orden.cobro.line.search</field>
               <field name="model">orden.cobro.line</field>
               <field name="arch" type="xml">
                   <search string="Facturas">
                     <field name="invoice_number" string="Nº factura" />
                     <field name="invoice_date" string="Fecha"/>
                     <field name="invoice_total" string="Saldo" sum="Saldo" />
                     <field name="monto_cobrado" string="Total a cobrar" sum="Total" />
                     <field name="invoice_state" string="Estado"/>
                   </search>
               </field>
           </record>

           <record id="form_orden_cobro_line" model="ir.ui.view">
               <field name="name">orden.cobro.line.form</field>
               <field name="model">orden.cobro.line</field>
               <field name="arch" type="xml">
                   <form string="Facturas">
                       <sheet>
                           <group>
                              <field name="invoice_id"/>
                               <field name="invoice_number"/>
                               <field name="invoice_total"/>
                               <field name="monto_cobrado" sum="total"/>
                           </group>
                       </sheet>
                   </form>
               </field>
           </record>

           <record id="action_orden_cobro_line" model="ir.actions.act_window">
               <field name="name">Facturas</field>
               <field name="type">ir.actions.act_window</field>
               <field name="res_model">orden.cobro.line</field>
               <field name="view_type">form</field>
               <field name="view_mode">tree,form</field>
               <field name="search_view_id" ref="search_orden_cobro_line"/>
           </record>

        <!-- Menú -->
        <menuitem id="menu_orden_cobro_main"
                  name="Órdenes de cobro"
                  parent="account.menu_finance_receivables"
                  action="action_orden_cobro"
                  sequence="60"/>

    </data>
</openerp>