Added middleware to track last_activity of a user

changelog.d/20250620_113902_sekachev.bs.md

@@ -0,0 +1,4 @@
+### Added
+
+- CVAT server tracks `last_activity_date` of a user, the field is updated once a day
+  (<https://github.com/cvat-ai/cvat/pull/9554>)

cvat/apps/engine/middleware.py

@@ -5,6 +5,10 @@
 from typing import Protocol
 from uuid import uuid4
 
+from django.apps import apps
+from django.conf import settings
+from django.utils.timezone import now
+
 
 class WithUUID(Protocol):
     uuid: str
@@ -24,3 +28,27 @@ def __call__(self, request):
         response.headers["X-Request-Id"] = request.uuid
 
         return response
+
+
+class LastActivityMiddleware:
+    def __init__(self, get_response):
+        self.get_response = get_response
+
+    def __call__(self, request):
+        response = self.get_response(request)
+
+        if request.user.is_authenticated:
+            profile = getattr(request.user, "profile", None)
+            if not profile:
+                return response
+
+            last_activity_date = profile.last_activity_date
+            if (
+                not last_activity_date
+                or (now() - last_activity_date) > settings.USER_LAST_ACTIVITY_UPDATE_MIN_INTERVAL
+            ):
+                # such way we avoid failing and any db updates if the Profile was removed during the request
+                Profile = apps.get_model("engine", "Profile")
+                Profile.objects.filter(user_id=request.user.id).update(last_activity_date=now())
+
+        return response

cvat/apps/engine/migrations/0091_profile_last_activity_date.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.2.21 on 2025-06-22 11:13
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("engine", "0090_asset_content_size_data_content_size"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="profile",
+            name="last_activity_date",
+            field=models.DateTimeField(blank=True, default=None, null=True),
+        ),
+    ]

cvat/apps/engine/models.py

@@ -1172,6 +1172,7 @@ class TrackedShapeAttributeVal(AttributeVal):
 class Profile(models.Model):
     user = models.OneToOneField(User, on_delete=models.CASCADE)
     rating = models.FloatField(default=0.0)
+    last_activity_date = models.DateTimeField(null=True, blank=True, default=None)
     has_analytics_access = models.BooleanField(
         _("has access to analytics"),
         default=False,

cvat/settings/base.py

@@ -195,6 +195,7 @@ def generate_secret_key():
     "django.contrib.auth.middleware.AuthenticationMiddleware",
     "django.middleware.gzip.GZipMiddleware",
     "cvat.apps.engine.middleware.RequestTrackingMiddleware",
+    "cvat.apps.engine.middleware.LastActivityMiddleware",
     "crum.CurrentRequestUserMiddleware",
     "django.contrib.messages.middleware.MessageMiddleware",
     "django.middleware.clickjacking.XFrameOptionsMiddleware",
@@ -787,3 +788,5 @@ class CVAT_QUEUES(Enum):
             "cron_string": "0 8 * * *",
         }
     )
+
+USER_LAST_ACTIVITY_UPDATE_MIN_INTERVAL = timedelta(days=1)