lib/omise/util.rb in omise-0.4.0 vs lib/omise/util.rb in omise-0.5.0

@@ -1,5 +1,6 @@
+require "cgi"
 require "json"
 
 require "omise/object"
 require "omise/error"
 
@@ -16,10 +17,52 @@
       klass.new(object)
     end
 
     def load_response(response)
       object = JSON.load(response)
-      raise Omise::Error.new(object) if object["object"] == "error"
+
+      if object["object"] == "error"
+        raise Omise::Error, object
+      end
+
       object
+    end
+
+    def generate_query(object, namespace = nil)
+      if object.is_a?(Hash)
+        return object.map do |key, value|
+          unless (value.is_a?(Hash) || value.is_a?(Array)) && value.empty?
+            generate_query(value, namespace ? "#{namespace}[#{key}]" : key)
+          end
+        end.compact.sort! * "&"
+      end
+
+      if object.is_a?(Array)
+        prefix = "#{namespace}[]"
+
+        if object.empty?
+          return generate_query(nil, prefix)
+        else
+          return object.map { |value| generate_query(value, prefix) }.join("&")
+        end
+      end
+
+      "#{CGI.escape(generate_param(namespace))}=#{CGI.escape(generate_param(object).to_s)}"
+    end
+
+    def generate_param(object)
+      if object.is_a?(Hash)
+        return generate_query(object)
+      end
+
+      if object.is_a?(Array)
+        return object.map { |o| generate_param(o) }.join("/")
+      end
+
+      if object.is_a?(NilClass) || object.is_a?(TrueClass) || object.is_a?(FalseClass)
+        return object
+      end
+
+      object.to_s
     end
   end
 end