xbus_message.xml

<?xml version="1.0" encoding="UTF-8" ?>
<odoo>
    <record id="xbus_message_view_tree" model="ir.ui.view">
        <field name="name">xbus_message_view_tree</field>
        <field name="model">xbus.message</field>
        <field name="arch" type="xml">
            <list>
                <field name="envelope_id" />
                <field name="type" />
                <field name="uid" />
            </list>
        </field>
    </record>

    <record id="xbus_message_view_form" model="ir.ui.view">
        <field name="name">xbus_message_view_form</field>
        <field name="model">xbus.message</field>
        <field name="arch" type="xml">
            <form string="Xbus Message">
                <sheet>
                    <group>
                        <field name="envelope_id" />
                        <field name="type" />
                        <field name="uid" />
                    </group>
                    <group>
                        <!-- The header field is hidden if its conversion to json works -->
                        <field name="header" string="Header" invisible="header_json" />
                        <!-- header_json field is only visible if the conversion of the header field to json works -->
                        <field
                            name="header_json"
                            string="Header"
                            invisible="not header_json"
                        />
                        <!-- The body field is hidden if its conversion to json works -->
                        <field name="body" string="Body" invisible="body_json" />
                        <!-- body_json field is only visible if the conversion of the body field to json works -->
                        <field
                            name="body_json"
                            string="Body"
                            invisible="not body_json"
                        />
                    </group>
                    <group>
                        <field name="link_ids" invisible="not link_ids">
                            <list>
                                <button
                                    name="action_open_document"
                                    string="Open Document"
                                    type="object"
                                    icon="fa-file-text-o"
                                    invisible="not res_model or res_id==0"
                                />
                                <field name="res_model" />
                                <field name="res_id" />
                            </list>
                        </field>
                    </group>
                </sheet>
            </form>
        </field>
    </record>

    <record id="xbus_message_action" model="ir.actions.act_window">
        <field name="name">Xbus Messages</field>
        <field name="res_model">xbus.message</field>
        <field name="view_mode">list,form</field>
        <field name="path">xbus-messages</field>
    </record>
</odoo>