whatsapp_web_groups/views/whatsapp_message_views.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data>
        <!-- Extender vista de formulario de WhatsApp Message -->
        <record id="whatsapp_message_view_form_groups" model="ir.ui.view">
            <field name="name">whatsapp.message.view.form.groups</field>
            <field name="model">whatsapp.message</field>
            <field name="inherit_id" ref="whatsapp.whatsapp_message_view_form"/>
            <field name="arch" type="xml">
                <!-- Agregar campos de grupo después del campo mobile_number -->
                <!-- Nota: El campo whatsapp_group_id Many2one está en whatsapp_web_groups -->
                <xpath expr="//field[@name='mobile_number']" position="after">
                    <field name="recipient_type" widget="radio" options="{'horizontal': true}"/>
                    <field name="final_recipient" readonly="1" 
                           invisible="not final_recipient"/>
                </xpath>
                
                <!-- Hacer mobile_number invisible cuando es grupo -->
                <xpath expr="//field[@name='mobile_number']" position="attributes">
                    <attribute name="invisible">recipient_type == 'group'</attribute>
                    <attribute name="required">recipient_type == 'phone'</attribute>
                </xpath>
            </field>
        </record>

        <!-- Extender vista de lista de WhatsApp Message -->
        <record id="whatsapp_message_view_tree_groups" model="ir.ui.view">
            <field name="name">whatsapp.message.view.tree.groups</field>
            <field name="model">whatsapp.message</field>
            <field name="inherit_id" ref="whatsapp.whatsapp_message_view_tree"/>
            <field name="arch" type="xml">
                <!-- Agregar columna de tipo de destinatario -->
                <xpath expr="//field[@name='mobile_number']" position="after">
                    <field name="recipient_type"/>
                </xpath>
            </field>
        </record>

        <!-- Extender vista de búsqueda -->
        <record id="whatsapp_message_view_search_groups" model="ir.ui.view">
            <field name="name">whatsapp.message.view.search.groups</field>
            <field name="model">whatsapp.message</field>
            <field name="inherit_id" ref="whatsapp.whatsapp_message_view_search"/>
            <field name="arch" type="xml">
                <!-- Agregar filtros para grupos al final -->
                <xpath expr="//search" position="inside">
                    <separator/>
                    <filter string="Phone Messages" name="phone_messages" domain="[('recipient_type', '=', 'phone')]"/>
                    <filter string="Group Messages" name="group_messages" domain="[('recipient_type', '=', 'group')]"/>
                    <group expand="0" string="Group By">
                        <filter string="Recipient Type" name="group_by_recipient_type" context="{'group_by': 'recipient_type'}"/>
                    </group>
                </xpath>
            </field>
        </record>
    </data>
</odoo>