pms/hotel/views/hotel_checkin_partner_views.xml

<?xml version="1.0"?>
<odoo>

    <act_window
        id="action_checkin_partner"
        name="Action checkin"
        res_model='hotel.checkin.partner'
        view_mode="tree,form" />
        
    <menuitem
        id="menu_hotel_checkin_partner"
        name="Checkins"
        parent="hotel.hotel_reports_menu"
        sequence="25"
        action="action_checkin_partner" />

    <record id="hotel_checkin_partner_view_form" model="ir.ui.view">
        <field name="name">Checkin Form</field>
        <field name="model">hotel.checkin.partner</field>
        <field name="arch" type="xml">
            <form create="false">
                <sheet>
                    <group name="group_top">
                        <group name="group_left">
                            <field name="partner_id" required="True"/>
                            <field name="enter_date"/>
                            <field name="exit_date"/>
                        </group>
                        <group name="group_left">
                            <field name="reservation_id"/>
                        </group>
                    </group>
                </sheet>
            </form>
        </field>
    </record>

    <record id="hotel_checkin_partner_reservation_view_tree" model="ir.ui.view">
        <field name="name">hotel.checkin.partner.reservation.view.tree</field>
        <field name="model">hotel.checkin.partner</field>
        <field name="priority">20</field>
        <field name="arch" type="xml">
            <tree editable="bottom"
                    decoration-danger="state == 'draft'"
                    decoration-muted="state == 'cancelled' or state =='done'"
                    decoration-success="state == 'booking'">
                <button type="object" class="oe_stat_button"
                    icon="fa fa-2x fa-check-circle"
                    name="action_on_board"
                    attrs="{'invisible':[('state','not in', ['draft'])]}"
                    help="Get in" 
                />
                <field name="partner_id" required="True"/>
                <field name="enter_date"/>
                <field name="exit_date"/>
                <field name="reservation_id"/>
                <field name="state" />
            </tree>
        </field>
    </record>

    <record id="hotel_checkin_partner_view_tree" model="ir.ui.view">
        <field name="name">hotel.checkin.partner.view.tree</field>
        <field name="model">hotel.checkin.partner</field>
        <field name="priority">10</field>
        <field name="arch" type="xml">
            <tree create="false"
                    decoration-danger="state == 'draft'"
                    decoration-muted="state == 'cancelled' or state =='done'"
                    decoration-success="state == 'booking'">
                <button type="object" class="oe_stat_button"
                    icon="fa fa-2x fa-check-circle"
                    name="action_on_board"
                    attrs="{'invisible':[('state','not in', ['draft'])]}"
                    help="Get in" 
                />
                <field name="partner_id" required="True"/>
                <field name="enter_date"/>
                <field name="exit_date"/>
                <field name="reservation_id"/>
                <field name="state" />
            </tree>
        </field>
    </record>

    <record model="ir.ui.view" id="hotel_checkin_partner_view_search">
        <field name="name">hotel.checkin.partner.search</field>
        <field name="model">hotel.checkin.partner</field>
        <field name="arch" type="xml">
            <search string="Checkin Detail">
                <field name="partner_id" />
                <field name="reservation_id" />
                <filter string="On Board"
                            domain="[('state','in',['booking'])]"
                            help="Current Booking" />
                <filter string="To enter"
                            domain="[('state', '=', 'draft')]"
                             />
                <filter string="Out"
                            domain="[('state', '=', 'done')]"
                             />
                <filter string="Checkins Tomorrow" name="enter_tomorrow"
                        domain="[('enter_date', '=', (context_today()+datetime.timedelta(days=1)).strftime('%Y-%m-%d')),
                        ('state', '=', 'draft')]"
                        help="Show all checkins for enter tomorrow"/>             
                <filter string="Checkins to 7 days" name="next_res_week"
                        domain="[('enter_date', '&lt;', (context_today()+datetime.timedelta(days=7)).strftime('%Y-%m-%d')),
                        ('state', '=', 'draft')]"
                        help="Show all reservations for which date enter is before than 7 days"/>
                <filter string="On Board Tomorrow" name="next_res_2week"
                        domain="[('enter_date', '&lt;', (context_today()+datetime.timedelta(days=14)).strftime('%Y-%m-%d')),
                        ('state', 'in', ['confirm','draft'])]"
                        help="Show all checkins for Tomorrow"/>
                <group expand="0" string="Group By">
                    <filter string="Creation Date" domain="[]"
                        context="{'group_by':'create_date'}" />
                    <filter string="Checkin Date" domain="[]"
                        context="{'group_by':'checkin'}" />
                    <filter string="Checkout Date" domain="[]"
                        context="{'group_by':'checkout'}" />
                </group>
            </search>
        </field>
    </record>

</odoo>