[IMP] calendar: save filters of the calendar view for the user

- We now save the status of each filters to avoid the user to do the
same operations, if he go elsewhere in the meantime.

Task ID 2196775
COM PR: odoo/odoo#55190
ENT PR: odoo/enterprise#12196
UPG PR: odoo/upgrade#1532

Co-authored-by: Simon Genin (ges) <ges@odoo.com>
Co-authored-by: jeh-odoo <jeh@odoo.com>

addons/calendar/models/calendar_contact.py

@@ -11,6 +11,8 @@ class Contacts(models.Model):
     user_id = fields.Many2one('res.users', 'Me', required=True, default=lambda self: self.env.user)
     partner_id = fields.Many2one('res.partner', 'Employee', required=True)
     active = fields.Boolean('Active', default=True)
+    partner_checked = fields.Boolean('Checked', default=True,
+        help="This field is used to know if the partner is checked in the filter of the calendar view for the user_id.")
 
     _sql_constraints = [
         ('user_id_partner_id_unique', 'UNIQUE(user_id, partner_id)', 'A user cannot have the same contact twice.')

addons/calendar/views/calendar_views.xml

@@ -277,7 +277,7 @@
                 <field name="videocall_location" string="Join Video Call" widget="CopyClipboardURL" />
                 <field name="attendee_status" invisible="1"/>
                 <field name="partner_id" string="Organizer"/>
-                <field name="partner_ids" widget="many2manyattendee" write_model="calendar.contacts" write_field="partner_id" avatar_field="image_128"/>
+                <field name="partner_ids" widget="many2manyattendee" write_model="calendar.contacts" write_field="partner_id" filter_field="partner_checked" avatar_field="image_128"/>
                 <field name="is_highlighted" invisible="1"/>
                 <field name="description" attrs="{'invisible': [('description', '=', False)]}"/>
                 <field name="privacy"/>