Add last login for user purging (#54)

* add last login for stale account purge

* Update serializers.py

* Update models.py

* Update models.py

* Update serializers.py

---------

Co-authored-by: Jonathan Loh <[email protected]>
Co-authored-by: John Wong <[email protected]>

backend/treeckle/authentication/serializers.py

@@ -1,6 +1,8 @@
 import os
 import requests
 
+from django.utils.timezone import now
+
 from rest_framework import serializers, exceptions
 
 from rest_framework_simplejwt.serializers import TokenRefreshSerializer
@@ -179,6 +181,9 @@ def authenticate(self, auth_data: AuthenticationData) -> dict:
         if authenticated_user is None:
             self.raise_invalid_user()
 
+        authenticated_user.last_login = now()
+        authenticated_user.save()
+
         return get_authenticated_data(user=authenticated_user)
 
 

backend/treeckle/users/migrations/0018_user_last_login.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.2.7 on 2025-01-21 13:58
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('users', '0017_alter_user_profile_image'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='user',
+            name='last_login',
+            field=models.DateTimeField(blank=True, null=True),
+        ),
+    ]

backend/treeckle/users/models.py

@@ -36,6 +36,7 @@ class User(TimestampedModel):
     profile_image = models.ForeignKey(
         Image, null=True, blank=True, on_delete=models.SET_NULL
     )
+    last_login = models.DateTimeField(null=True, blank=True)
 
     def __str__(self):
         return f"{self.name} | {self.email} ({self.organization})"