diff --git a/plugins/elasticsearch/controllers/elasticsearch_plugin_controller.rb b/plugins/elasticsearch/controllers/elasticsearch_plugin_controller.rb
index 18592da..77e4307 100644
--- a/plugins/elasticsearch/controllers/elasticsearch_plugin_controller.rb
+++ b/plugins/elasticsearch/controllers/elasticsearch_plugin_controller.rb
@@ -33,7 +33,7 @@ class ElasticsearchPluginController < ApplicationController
   def get_query text, klass
     query = {}
     unless text.blank?
-
+       text = text.downcase
        fields = klass::SEARCHABLE_FIELDS.map do |key, value|
          if value[:weight]
            "#{key}^#{value[:weight]}"
diff --git a/plugins/elasticsearch/lib/ext/article.rb b/plugins/elasticsearch/lib/ext/article.rb
new file mode 100644
index 0000000..ff88a31
--- /dev/null
+++ b/plugins/elasticsearch/lib/ext/article.rb
@@ -0,0 +1,13 @@
+require_dependency 'article'
+require_relative '../elasticsearch_indexed_model'
+
+class Article
+  include ElasticsearchIndexedModel
+
+  def self.control_fields
+    [
+      :advertise,
+      :published,
+    ]
+  end
+end
--
libgit2 0.21.2