Add management commands

gallery/management/commands/clear_album_cache.py

@@ -0,0 +1,21 @@
+from django.core.cache import cache
+from django.core.management.base import BaseCommand
+
+from gallery.models import Album
+
+
+class Command(BaseCommand):
+    help = "Clears photo count and view count caches for all albums"
+
+    def handle(self, *args, **options):
+        albums = Album.objects.only("pk", "name")
+        cleared = 0
+
+        for album in albums:
+            cache.delete(f'album_{album.pk}_photo_count')
+            cache.delete(f'album_{album.pk}_photo_views')
+            cleared += 1
+
+        self.stdout.write(self.style.SUCCESS(
+            f"Cleared cache for {cleared} albums."
+        ))