diff --git a/catalog/migrations/0027_genre_genre_name_case_insensitive_unique_and_more.py b/catalog/migrations/0027_genre_genre_name_case_insensitive_unique_and_more.py
new file mode 100644
index 00000000..72963b04
--- /dev/null
+++ b/catalog/migrations/0027_genre_genre_name_case_insensitive_unique_and_more.py
@@ -0,0 +1,22 @@
+# Generated by Django 5.0.8 on 2024-08-12 23:52
+
+import django.db.models.functions.text
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('catalog', '0026_alter_book_author_alter_genre_name_and_more'),
+    ]
+
+    operations = [
+        migrations.AddConstraint(
+            model_name='genre',
+            constraint=models.UniqueConstraint(django.db.models.functions.text.Lower('name'), name='genre_name_case_insensitive_unique', violation_error_message='Genre already exists (case insensitive match)'),
+        ),
+        migrations.AddConstraint(
+            model_name='language',
+            constraint=models.UniqueConstraint(django.db.models.functions.text.Lower('name'), name='language_name_case_insensitive_unique', violation_error_message='Language already exists (case insensitive match)'),
+        ),
+    ]
diff --git a/catalog/views.py b/catalog/views.py
index 9e4f8c85..fe1fab38 100644
--- a/catalog/views.py
+++ b/catalog/views.py
@@ -15,8 +15,9 @@ def index(request):
     num_authors = Author.objects.count()  # The 'all()' is implied by default.
 
     # Number of visits to this view, as counted in the session variable.
-    num_visits = request.session.get('num_visits', 1)
-    request.session['num_visits'] = num_visits+1
+    num_visits = request.session.get('num_visits', 0)
+    num_visits += 1
+    request.session['num_visits'] = num_visits
 
     # Render the HTML template index.html with the data in the context variable.
     return render(