[picture][fix] any size for thumbnail

flaschengeist/plugins/pricelist/pricelist_controller.py

@@ -415,13 +415,9 @@ def get_drink_picture(identifier, size=None):
         drink = get_drink(identifier)
     if isinstance(identifier, str):
         drink = Drink.query.filter(Drink.uuid == identifier).one_or_none()
-    try:
-        if drink:
-            return get_picture(f"{path}/{drink.uuid}", size)
-    except FileNotFoundError:
-        drink.uuid = None
-        db.session.commit()
-        raise FileNotFoundError
+    if drink:
+        return get_picture(f"{path}/{drink.uuid}", size)
+    raise FileNotFoundError
 
 
 def delete_drink_picture(identifier):

flaschengeist/utils/picture.py

@@ -1,4 +1,4 @@
-import os, sys, shutil
+import os, sys, shutil, io
 from PIL import Image
 from flask import Response
 from werkzeug.exceptions import BadRequest
@@ -25,6 +25,7 @@ def save_picture(picture, path):
         work_image.thumbnail(thumbnail_size)
         work_image.save(f"{filename}-{thumbnail_size[0]}.png", "PNG")
 
+
 def get_picture(path, size=None):
     try:
         if size:
@@ -33,9 +34,10 @@ def get_picture(path, size=None):
                     image = file.read()
             else:
                 _image = Image.open(f"{path}/drink.png")
-                _image.thumbnail((size, size))
-                image = bytearray()
-                _image.save(bytearray, format='PNG')
+                _image.thumbnail((int(size), int(size)))
+                with io.BytesIO() as file:
+                    _image.save(file, format="PNG")
+                    image = file.getvalue()
         else:
             with open(f"{path}/drink.png", "rb") as file:
                 image = file.read()
@@ -46,8 +48,6 @@ def get_picture(path, size=None):
         raise FileNotFoundError
 
 
-
-
 def delete_picture(path):
     try:
         shutil.rmtree(path)