flectra/addons/event/security/event_security.xml

<?xml version="1.0" encoding="utf-8"?>
<flectra>
    <data noupdate="0">
        <record id="group_event_user" model="res.groups">
            <field name="name">User</field>
            <field name="implied_ids" eval="[(4, ref('base.group_user'))]"/>
            <field name="category_id" ref="base.module_category_event_management"/>
        </record>

        <record id="group_event_manager" model="res.groups">
            <field name="name">Manager</field>
            <field name="category_id" ref="base.module_category_event_management"/>
            <field name="implied_ids" eval="[(4, ref('group_event_user'))]"/>
            <field name="users" eval="[(4, ref('base.user_root'))]"/>
        </record>
    </data>

    <data noupdate="1">
        <record id="base.default_user" model="res.users">
            <field name="groups_id" eval="[(4,ref('event.group_event_manager'))]"/>
        </record>

        <!-- Multi - Company Rules -->
        <record model="ir.rule" id="event_event_company_rule">
            <field name="name">Event: multi-company</field>
            <field name="model_id" ref="model_event_event"/>
            <field name="global" eval="True"/>
            <field name="domain_force">['|',
                                            ('company_id', '=', False),
                                            ('company_id', 'child_of', [user.company_id.id]),
                                        ]
            </field>
        </record>
        <record model="ir.rule" id="event_registration_company_rule">
            <field name="name">Event/Registration: multi-company</field>
            <field name="model_id" ref="model_event_registration"/>
            <field name="global" eval="True"/>
            <field name="domain_force">['|',
                                            ('company_id', '=', False),
                                            ('company_id', 'child_of', [user.company_id.id]),
                                        ]
            </field>
        </record>
        <record model="ir.rule" id="event_registration_portal">
            <field name="name">Event/Registration: Portal</field>
            <field name="model_id" ref="model_event_registration"/>
            <field name="groups" eval="[(4, ref('base.group_portal'))]"/>
            <field name="domain_force">['|', ('email', '=', user.partner_id.email), ('partner_id', '=', user.partner_id.id)]
            </field>
        </record>
    </data>
</flectra>