Pass a list instead of an Array to #read_multi.

lib/rabl/cache_engine.rb

@@ -27,9 +27,10 @@ def write(key, value, options={})
       end
     end
 
-    def read_multi(keys, cache_options = {})
+    def read_multi(*keys)
+      options = keys.extract_options!
       if defined?(Rails)
-        Rails.cache.read_multi(keys, cache_options)
+        Rails.cache.read_multi(*keys, cache_options)
       else
         keys.inject({}) { |hash, key| hash[key] = nil; hash }
       end

lib/rabl/engine.rb

@@ -55,7 +55,7 @@ def to_hash(options={})
         result = builder.build(data, options)
       elsif is_collection?(data) # collection @users
         result = if template_cache_configured? && Rabl.configuration.use_read_multi
-          read_multi(data, options)
+          read_multi(*data, options)
         else
           data.map { |object| builder.build(object, options) }
         end
@@ -330,7 +330,8 @@ def cache_results(&block)
 
     # Uses read_multi to render a collection of cache keys,
     # falling back to a normal render in the event of a miss.
-    def read_multi(data, options={})
+    def read_multi(*data)
+      options = data.extract_options!
       builder = Rabl::MultiBuilder.new(data, options)
       builder.to_a
     end

lib/rabl/multi_builder.rb

@@ -69,7 +69,7 @@ def cache_results
       mutable_keys = @cache_key_to_engine.keys.map { |k| k.dup }
       return {} if mutable_keys.empty?
 
-      Rabl.configuration.cache_engine.read_multi(mutable_keys)
+      Rabl.configuration.cache_engine.read_multi(*mutable_keys)
     end
 
     # Maps the results from the cache back to the builders

test/multi_builder_test.rb

@@ -48,7 +48,7 @@
     end
 
     asserts "uses read_multi to find all of the cached values with keys" do
-      mock(Rabl.configuration.cache_engine).read_multi(['cache_key']).returns({})
+      mock(Rabl.configuration.cache_engine).read_multi('cache_key').returns({})
       topic.send(:cache_results)
     end
   end