[MODEL] Added, that add_index for ActiveRecord models is only called when it doesn't exist already

Author: karmi

elasticsearch-model/examples/activerecord_associations.rb

@@ -56,7 +56,8 @@
     t.references :article
     t.timestamps
   end
-  add_index(:comments, :article_id)
+
+  add_index(:comments, :article_id) unless index_exists?(:comments, :article_id)
 end
 
 # ----- Elasticsearch client setup ----------------------------------------------------------------

elasticsearch-model/test/integration/active_record_associations_parent_child.rb

@@ -71,12 +71,15 @@ class ActiveRecordAssociationsParentChildIntegrationTest < Elasticsearch::Test::
               t.string     :author
               t.timestamps
             end
+
             create_table :answers do |t|
               t.text       :text
               t.string     :author
               t.references :question
               t.timestamps
-            end and add_index(:answers, :question_id)
+            end
+
+            add_index(:answers, :question_id) unless index_exists?(:answers, :question_id)
           end
 
           Question.delete_all