Make cache configurable

core/lib/manticore.py

@@ -68,27 +68,33 @@ def construct_query(query, size, index, blank=False):
 
 
 def run_query(client, user, search_query):
-    start = time.process_time()
-    query_normalised = json.dumps(search_query, sort_keys=True)
-    hash = siphash(hash_key, query_normalised)
-    cache_hit = r.get(f"query_cache.{user.id}.{hash}")
-    if cache_hit:
-        print("Cache hit")
-        response = json.loads(cache_hit)
-        time_took = (time.process_time() - start) * 1000
-        # Round to 3 significant figures
-        time_took_rounded = round(time_took, 3 - int(floor(log10(abs(time_took)))) - 1)
-        response["took"] = time_took_rounded
-        response["cache"] = True
-        return response
+    if settings.MANTICORE_CACHE:
+        start = time.process_time()
+        query_normalised = json.dumps(search_query, sort_keys=True)
+        hash = siphash(hash_key, query_normalised)
+        cache_hit = r.get(f"query_cache.{user.id}.{hash}")
+        if cache_hit:
+            print("Cache hit")
+            response = json.loads(cache_hit)
+            time_took = (time.process_time() - start) * 1000
+            # Round to 3 significant figures
+            time_took_rounded = round(
+                time_took, 3 - int(floor(log10(abs(time_took)))) - 1
+            )
+            response["took"] = time_took_rounded
+            response["cache"] = True
+            return response
     response = client.search(search_query)
     response = response.to_dict()
     filter_blacklisted(user, response)
-    print("Writing to cache")
-    to_write_cache = json.dumps(response)
-    r.set(f"query_cache.{user.id}.{hash}", to_write_cache)
-    r.expire(f"query_cache.{user.id}.{hash}", 30)
-    print("Written to cache")
+
+    # Write cache
+    if settings.MANTICORE_CACHE:
+        print("Writing to cache")
+        to_write_cache = json.dumps(response)
+        r.set(f"query_cache.{user.id}.{hash}", to_write_cache)
+        r.expire(f"query_cache.{user.id}.{hash}", settings.MANTICORE_CACHE_TIMEOUT)
+        print("Written to cache")
     return response