[FIX] crm: Smart button for meetings not working

Steps to reproduce the bug:

- Let's consider a company contact C with two children CH1 and CH2
- Create a meeting for CH1 and a meeting for CH2

Bug:

The count of meetings in C was displaying 0 instead of 2

PS: set() is used to avoid to count several times the same event for a partner.

If for example CH1 and CH2 attend to the same event, only one event must be counted for the
parent C

opw:2360155

Co-authored-by: nim-odoo <nim@odoo.com>

1 files changed, 30 insertions, 8 deletions

diff --git a/addons/crm/models/res_partner.py b/addons/crm/models/res_partner.py
index 49ebc452775..d9430beada2 100644
--- a/addons/crm/models/res_partner.py
+++ b/addons/crm/models/res_partner.py
@@ -58,30 +58,52 @@ class Partner(models.Model):
                 partner.opportunity_count = partners.get(partner.id, 0)
 
     def _compute_meeting_count(self):
+        result = self._compute_meeting()
+        for p in self:
+            p.meeting_count = len(result.get(p.id, []))
+
+    def _compute_meeting(self):
         if self.ids:
+            all_partners = self.with_context(active_test=False).search([('id', 'child_of', self.ids)])
             self.env.cr.execute("""
                 SELECT res_partner_id, calendar_event_id, count(1)
                   FROM calendar_event_res_partner_rel
                  WHERE res_partner_id IN %s
               GROUP BY res_partner_id, calendar_event_id
-            """, [tuple(self.ids)])
+            """, [tuple(all_partners.ids)])
             meeting_data = self.env.cr.fetchall()
+
+            # Keep only valid meeting data based on record rules of events
             events = [row[1] for row in meeting_data]
-            valid_events = self.env['calendar.event'].search([('id', 'in', events)])  # filter for ACLs
-            meetings = dict((m[0], m[2]) for m in meeting_data if m[1] in valid_events.ids)
-        else:
-            meetings = dict()
-        for partner in self:
-            partner.meeting_count = meetings.get(partner.id, 0)
+            events = self.env['calendar.event'].search([('id', 'in', events)]).ids
+            meeting_data = [m for m in meeting_data if m[1] in events]
+
+            # Create a dict {partner_id: event_ids} and fill with events linked to the partner
+            meetings = {p.id: set() for p in all_partners}
+            for m in meeting_data:
+                meetings[m[0]].add(m[1])
+
+            # Add the events linked to the children of the partner
+            all_partners.read(['parent_id'])
+            for p in all_partners:
+                partner = p
+                while partner:
+                    if partner in self:
+                        meetings[partner.id] |= meetings[p.id]
+                    partner = partner.parent_id
+            return {p.id: list(meetings[p.id]) for p in self}
+        return {}
+
 
     def schedule_meeting(self):
+        self.ensure_one()
         partner_ids = self.ids
         partner_ids.append(self.env.user.partner_id.id)
         action = self.env["ir.actions.actions"]._for_xml_id("calendar.action_calendar_event")
         action['context'] = {
             'default_partner_ids': partner_ids,
         }
-        action['domain'] = [('id', 'in', self.meeting_ids.ids)]
+        action['domain'] = [('id', 'in', self._compute_meeting()[self.id])]
         return action
 
     def action_view_opportunity(self):