lib/chartkick.rb in chartkick-1.2.4 vs lib/chartkick.rb in chartkick-1.2.5

@@ -8,5 +8,19 @@
     attr_accessor :content_for
     attr_accessor :options
   end
   self.options = {}
 end
+
+# for multiple series
+# use Enumerable so it can be called on arrays
+module Enumerable
+  def chart_json
+    if is_a?(Hash) and (key = keys.first) and key.is_a?(Array) and key.size == 2
+      group_by{|k, v| k[0] }.map do |name, data|
+        {name: name, data: data.map{|k, v| [k[1], v] }}
+      end
+    else
+      self
+    end.to_json
+  end
+end