Add media folder size to admin template

gallery/utils.py

@@ -1,9 +1,23 @@
+import os
 from urllib.parse import urlencode, urlparse, urlunparse
 
 from django.conf import settings
 from django.urls import reverse
 
 
+def get_media_size_gb():
+    total_size = 0
+    media_root = settings.MEDIA_ROOT
+    for dirpath, dirnames, filenames in os.walk(media_root):
+        for f in filenames:
+            fp = os.path.join(dirpath, f)
+            try:
+                total_size += os.path.getsize(fp)
+            except OSError:
+                pass
+    return round(total_size / (1024 ** 3), 2)  # GB, kahden desimaalin tarkkuudella
+
+
 def build_canonical_url(request, base_url=None, params=None):
 
     if base_url is None: