From dcacd5e033bf8414b556c058250d17d0cbf30a84 Mon Sep 17 00:00:00 2001
From: "madjid.asa" <madjid.asa@gmail.com>
Date: Tue, 3 Oct 2023 12:25:53 +0200
Subject: [PATCH] improve the way to calculate the latest activity and improve
 wording

---
 lemarche/siaes/models.py                   | 26 +++++++++-------------
 lemarche/templates/siaes/_card_detail.html |  2 +-
 lemarche/users/models.py                   |  9 +++++++-
 3 files changed, 19 insertions(+), 18 deletions(-)

diff --git a/lemarche/siaes/models.py b/lemarche/siaes/models.py
index 4293c6b65..bf9b284d1 100644
--- a/lemarche/siaes/models.py
+++ b/lemarche/siaes/models.py
@@ -1041,25 +1041,19 @@ def completion_percent(self):
         return round_by_base(score_percent, base=5)
 
     @property
-    def last_activity_at(self):
-        last_activity_at = None
-        if self.users.exists():
-            users_last_activities = self.users.values_list(
+    def latest_activity_at(self):
+        latest_activity_at = None
+        users_activity = self.users.annotate(
+            latest_activity_at=Greatest(
                 "updated_at", "last_login", "dashboard_last_seen_date", "tender_list_last_seen_date"
             )
-            for index, user_last_activities in enumerate(users_last_activities):
-                if index == 0:
-                    # set the first date
-                    last_activity_at = user_last_activities[0]
-                    start_index = 1 if index == 0 else 0
-                    for _, activity_at in enumerate(user_last_activities, start=start_index):
-                        last_activity_at = (
-                            activity_at if activity_at and activity_at > last_activity_at else last_activity_at
-                        )
-            last_activity_at = last_activity_at if last_activity_at > self.updated_at else self.updated_at
+        ).order_by("-latest_activity_at")
+        if users_activity:
+            latest_activity_at = users_activity.first().latest_activity_at
+            latest_activity_at = self.updated_at if self.updated_at > latest_activity_at else latest_activity_at
         else:
-            last_activity_at = self.updated_at
-        return last_activity_at
+            latest_activity_at = self.updated_at
+        return latest_activity_at
 
     def sectors_list_string(self, display_max=5):
         sectors_name_list = self.sectors.form_filter_queryset().values_list("name", flat=True)
diff --git a/lemarche/templates/siaes/_card_detail.html b/lemarche/templates/siaes/_card_detail.html
index 3f8bb21d6..27705bfc7 100644
--- a/lemarche/templates/siaes/_card_detail.html
+++ b/lemarche/templates/siaes/_card_detail.html
@@ -16,7 +16,7 @@
                         <h1 class="h2 mb-2">
                             {{ siae.name_display }}
                             <br />
-                            <small>(Dernière activité il y a {{ siae.last_activity_at|timesince }})</small>
+                            <small>(Dernière activité il y a {{ siae.latest_activity_at|timesince }})</small>
                         </h1>
                         {% if user.is_authenticated %}
                             {% if siae.in_user_favorite_list_count %}
diff --git a/lemarche/users/models.py b/lemarche/users/models.py
index ce623b56b..4018127b1 100644
--- a/lemarche/users/models.py
+++ b/lemarche/users/models.py
@@ -4,7 +4,7 @@
 from django.contrib.contenttypes.fields import GenericRelation
 from django.db import models
 from django.db.models import Count
-from django.db.models.functions import Lower
+from django.db.models.functions import Greatest, Lower
 from django.db.models.signals import post_save
 from django.dispatch import receiver
 from django.forms.models import model_to_dict
@@ -44,6 +44,13 @@ def with_siae_stats(self):
     def with_tender_stats(self):
         return self.prefetch_related("tenders").annotate(tender_count=Count("tenders", distinct=True))
 
+    def with_latest_activities(self):
+        return self.annotate(
+            latest_activity_at=Greatest(
+                "updated_at", "last_login", "dashboard_last_seen_date", "tender_list_last_seen_date"
+            )
+        )
+
 
 class UserManager(BaseUserManager):
     """