prevent error about memcache key length with long URLs

knesset/context.py

@@ -5,15 +5,17 @@
 def processor(request):
     from django.contrib.flatpages.models import FlatPage
     from django.core.cache import cache
-    page = cache.get('flatpage_block_%s'%request.path)
-    if not page:
-        qs = FlatPage.objects.filter(url=request.path)
-        if qs.exists():
-            page = qs.values('title', 'content', 'template_name')[0]
-        else:
-            page = 'NO PAGE'
-        cache.set('flatpage_block_%s'%request.path, page, 86400)
-    d.update({
-        'flatpage': page if page and page != 'NO PAGE' else None
-    })
+    if len(request.path) < 150:
+        # we limit the length becuase otherwise we get memcache error about key length
+        page = cache.get('flatpage_block_%s'%request.path)
+        if not page:
+            qs = FlatPage.objects.filter(url=request.path)
+            if qs.exists():
+                page = qs.values('title', 'content', 'template_name')[0]
+            else:
+                page = 'NO PAGE'
+            cache.set('flatpage_block_%s'%request.path, page, 86400)
+        d.update({
+            'flatpage': page if page and page != 'NO PAGE' else None
+        })
     return d