fest(inventory): Improve game image names generation

inventory/models.py

@@ -1,6 +1,9 @@
 from django.db import models
 from django.urls import reverse
 from django.core.exceptions import ValidationError
+import os
+import uuid
+
 from autoslug import AutoSlugField
 from website.validators import MaxFileSizeValidator
 from comments.models import AbstractComment
@@ -36,6 +39,17 @@ class Tag(models.Model):
         return reverse("inventory:tag", args=(self.slug,))
 
 
+def image_uuid_path(instance, filename):
+    """
+    Compute filename for game images as follow:
+
+        game_img/{random_uuid}.{extension}
+    """
+    ext = filename.split(".")[-1]
+    filename = "%s.%s" % (uuid.uuid4(), ext)
+    return os.path.join("uploads/logos", filename)
+
+
 class Game(models.Model):
     title = models.CharField(verbose_name="Nom de l'outil", max_length=256, unique=True)
     slug = AutoSlugField(populate_from="title", unique=True)
@@ -47,7 +61,7 @@ class Game(models.Model):
 
     description = models.TextField(blank=True, verbose_name="description")
     image = models.ImageField(
-        upload_to="game_img/",
+        upload_to=image_uuid_path,
         blank=True,
         verbose_name="image",
         help_text="L'image doit peser 512 Kio au maximum",