[WIPR] Add monthly user activity stat

api/institutions/serializers.py

@@ -334,6 +334,7 @@ class Meta:
     department = ser.CharField(read_only=True, source='department_name')
     orcid_id = ser.CharField(read_only=True)
     month_last_login = YearmonthField(read_only=True)
+    month_last_active = YearmonthField(read_only=True)
     account_creation_date = YearmonthField(read_only=True)
 
     public_projects = ser.IntegerField(read_only=True, source='public_project_count')

api/institutions/views.py

@@ -560,6 +560,7 @@ class _NewInstitutionUserMetricsList(InstitutionMixin, ElasticsearchListView):
         'user_name',
         'department',
         'month_last_login',
+        'month_last_active',
         'account_creation_date',
         'public_projects',
         'private_projects',

osf/metrics/reporters/institutional_users.py

@@ -52,6 +52,7 @@ def __post_init__(self):
                 if self.user.date_last_login is not None
                 else None
             ),
+            month_last_active=self.get_month_last_active(),
             account_creation_date=YearMonth.from_date(self.user.created),
             orcid_id=self.user.get_verified_external_id('ORCID', verified_only=True),
             public_project_count=self._public_project_queryset().count(),
@@ -80,6 +81,23 @@ def _public_project_queryset(self):
             root_id=F('pk'),  # only root nodes
         )
 
+    def get_month_last_active(self):
+        """
+        Calculate the last month the user was active, based on their node and preprint logs,
+        get the most recent
+        """
+        last_node_log_date = self.user.logs.filter(
+            created__lt=self.before_datetime
+        ).order_by('-created').values_list('created', flat=True).first()
+
+        last_preprint_log_date = self.user.preprint_logs.filter(
+            created__lt=self.before_datetime
+        ).order_by('-created').values_list('created', flat=True).first()
+
+        if last_node_log_date and last_preprint_log_date:
+            most_recent_log = max(last_node_log_date, last_preprint_log_date)
+            return YearMonth.from_date(most_recent_log)
+
     def _private_project_queryset(self):
         return self._node_queryset().filter(
             type='osf.node',  # `type` field from TypedModel

osf/metrics/reports.py

@@ -260,6 +260,7 @@ class InstitutionalUserReport(MonthlyReport):
     user_name = metrics.Keyword()
     department_name = metrics.Keyword()
     month_last_login = YearmonthField()
+    month_last_active = YearmonthField()
     account_creation_date = YearmonthField()
     orcid_id = metrics.Keyword()
     # counts:

osf_tests/metrics/reporters/test_institutional_users_reporter.py

@@ -70,12 +70,14 @@ def test_one_user_with_nothing(self):
         _reports = list(InstitutionalUsersReporter().report(self._yearmonth))
         self.assertEqual(len(_reports), 1)
         self._assert_report_matches_setup(_reports[0], self._user_setup_with_nothing)
+        self.assertEqual(_reports[0].month_last_active, None)
 
     def test_one_user_with_ones(self):
         self._user_setup_with_ones.affiliate_user()
         _reports = list(InstitutionalUsersReporter().report(self._yearmonth))
         self.assertEqual(len(_reports), 1)
         self._assert_report_matches_setup(_reports[0], self._user_setup_with_ones)
+        self.assertEqual(_reports[0].month_last_active, self._yearmonth)
 
     def test_one_user_with_stuff_and_no_files(self):
         self._user_setup_with_stuff.affiliate_user()