lib/cache_flow.rb in laserlemon-cache_flow-0.1.3 vs lib/cache_flow.rb in laserlemon-cache_flow-0.1.4

@@ -87,11 +87,27 @@
         def json_cache_key(options)
           serialization_cache_key(:json, options.merge(:include_root_in_json => include_root_in_json))
         end
 
         def serialization_cache_key(extension, options)
-          query = options.except(:cache).reject{|k,v| v.nil? }.to_query
-          ["#{cache_key}.#{extension}", query].delete_if(&:blank?).join('?')
+          query = options.except(:cache, :skip_instruct).reject{|k,v| v.nil? }.to_query
+          key = ["#{cache_key}.#{extension}", query].delete_if(&:blank?).join('?')
+          if cache_key_limit && (key.size > cache_key_limit)
+            "#{cache_key}.#{extension}?#{hashed_serialization_query(query)}"
+          else
+            key
+          end
+        end
+
+        def cache_key_limit
+          case Rails.cache.class.name.demodulize.underscore.to_sym
+          when :mem_cache_store then 250
+          end
+        end
+
+        def hashed_serialization_query(query)
+          require 'digest/sha1' unless defined?(Digest) && defined?(Digest::SHA1)
+          "cache_flow=#{Digest::SHA1.hexdigest(query)}"
         end
     end
   end
 end