i have 2 groups in my application (group_staff, group_user). i have the below view

<record id="view_staff_reservation_form" model="ir.ui.view">

<field name="name">reservation.form.view</field>

<field name="model">reservations.reservation</field>

<field name="arch" type="xml">

<tree string="Reservation">

<field name="id"></field>

<field name="reserve_item_id"></field>

<field name="is_reserve"></field>

<field name="is_reserve_accepted"></field>

</tree>

</field>

</record>

i need to make is_reserve field is readonly for group_staff and i need to make is_reserve_accepted field is readonly for group_user. can anybody help on this