Remove cleaned up OIDs from database and cache

1 files changed, 13 insertions, 0 deletions

diff --git a/lib/gitlab/discussions_diff/highlight_cache.rb b/lib/gitlab/discussions_diff/highlight_cache.rb
index 270cfb89488..369c6b87fb4 100644
--- a/lib/gitlab/discussions_diff/highlight_cache.rb
+++ b/lib/gitlab/discussions_diff/highlight_cache.rb
@@ -52,6 +52,19 @@ module Gitlab
           end
         end
 
+        # Clears multiple cache keys at once.
+        #
+        # raw_keys - An Array of unique cache keys, without namespaces.
+        #
+        # It returns the number of cache keys cleared. Ex.: 42
+        def clear_multiple(raw_keys)
+          return [] if raw_keys.empty?
+
+          keys = raw_keys.map { |id| cache_key_for(id) }
+
+          Redis::Cache.with { |redis| redis.del(keys) }
+        end
+
         def cache_key_for(raw_key)
           "#{cache_key_prefix}:#{raw_key}"
         end