Basic functionality ready.

viewer/utils.py

@@ -0,0 +1,29 @@
+# Standard library imports.
+from pathlib import Path
+
+# External library imports.
+from PIL import Image
+
+# Django imports.
+from django.conf import settings
+
+###########################################################################################
+# Helper functions.                                                                       #
+###########################################################################################
+
+def make_thumbnail(image):
+    """
+    Creates a thumbnail in the corresponding THUMBNAILS_ROOT directory for the given image.
+
+    :param image: A pathlib.Path instance pointing to a file inside the GALLERY_ROOT directory.
+    """
+
+    if image.exists():
+        thumb_path = Path(str(image).replace(str(settings.GALLERY_ROOT), str(settings.THUMBNAILS_ROOT)))
+
+        thumb_path.parent.mkdir(parents = True, exist_ok = True)
+
+        if not thumb_path.exists():
+            with Image.open(str(image)) as pilimg:
+                pilimg.thumbnail(THUMB_SIZE)
+                pilimg.save(str(thumb_path))