fixed a bug in URI encode in ruby

Author: Gaurav SinghaRoy

app/controllers/query_controller.rb

@@ -21,8 +21,8 @@ def execute_sparql
     dataset = params[:dataset]
     query = params[:query]
    	if !query.blank? && !dataset.blank?
-   		uri = get_uri("http://localhost:#{get_rdf2any_server_port}/rdf2any/v1.0/convert/json?dataset="+dataset+"&query="+query)
-   		response = HTTParty.get(uri)
+   		uri = get_uri("http://localhost:#{get_rdf2any_server_port}/rdf2any/v1.0/convert/json?dataset="+dataset+"&query="+uri_value_encode(query))
+      response = HTTParty.get(uri)
 
       if params[:pdf].blank?
      	  render :json => response.to_json

app/helpers/application_helper.rb

@@ -1,3 +1,4 @@
+require 'open-uri'
 module ApplicationHelper
 	def get_sparql_prefixes
 		prefix = ""
@@ -65,4 +66,8 @@ def get_variable_name_of_property(property_uri)
 		variable_name = property_uri.split("/").last
 		return variable_name.gsub(/[^[:alnum:]]/, "").underscore
 	end
+
+	def uri_value_encode(str)
+		URI::encode(str).gsub("\&","%26")
+	end
 end