Remove broken caching mechanism

favicon/models.py

 from io import BytesIO
-import hashlib
-import json
 import sys
 
 from PIL import Image
 from django.conf import settings
-from django.core.cache import cache
 from django.core.files.storage import default_storage as storage
 from django.core.files.uploadedfile import InMemoryUploadedFile
 from django.db import models
@@ -29,7 +26,6 @@ config = getattr(settings, 'FAVICON_CONFIG', config)
 if "shortcut icon" not in config or 32 not in config["shortcut icon"]:
     config.setdefault("shortcut_icon", []).append(32)
 
-config_cache_key = "favicons_" + hashlib.sha1(json.dumps(config, sort_keys=True).encode()).hexdigest()
 
 image_path = getattr(settings, "FAVICON_PATH", "favicon")
 
@@ -120,13 +116,10 @@ class Favicon(models.Model):
         if self.isFavicon:
             Favicon.on_site.exclude(pk=self.pk).update(isFavicon=False)
 
-        super(Favicon, self).save(*args, **kwargs)
-
-        cache.delete(config_cache_key)
+        super().save(*args, **kwargs)
 
         if self.faviconImage:
-            html = self.as_html(update=True)
-            cache.set(config_cache_key, html, timeout=None)
+            self.get_favicons(update=True)
 
 
 class FaviconImg(models.Model):

favicon/templatetags/favtags.py

@@ -2,7 +2,7 @@ from django import template
 from django.core.cache import cache
 from django.utils.safestring import mark_safe
 
-from favicon.models import Favicon, config_cache_key
+from favicon.models import Favicon
 
 register = template.Library()
 
@@ -18,14 +18,9 @@ def place_favicon(context):
 
     """
 
-    html = cache.get(config_cache_key)
-    if html:
-        return mark_safe(html)
-
     fav = Favicon.on_site.filter(isFavicon=True).first()
     if not fav:
         return mark_safe('<!-- no favicon -->')
+ 
     html = fav.as_html()
-
-    cache.set(config_cache_key, html, timeout=None)
     return mark_safe(html)