fix: librarian login history relation field type

users/migrations/0004_alter_librarianloginhistory_librarian.py

+# Generated by Django 5.0.7 on 2024-07-19 06:07
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('users', '0003_alter_librarianloginhistory_librarian'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='librarianloginhistory',
+            name='librarian',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='users.librarian'),
+        ),
+    ]

users/models.py

@@ -27,7 +27,7 @@ class Member(models.Model):
 
 
 class LibrarianLoginHistory(models.Model):
-    librarian = models.OneToOneField(
+    librarian = models.ForeignKey(
         Librarian, blank=True, null=True, on_delete=models.CASCADE
     )
     date = models.DateTimeField(auto_now_add=True)