check params existance before using them

Hasan Gharehasanloo · Hasan Gharehasanloo · commit 79ed2ebac4af · 2014-11-28T00:19:53.000+03:30
diff --git a/lib/ajax-datatables-rails/base.rb b/lib/ajax-datatables-rails/base.rb
@@ -54,9 +54,9 @@ def records
 
     def fetch_records
       records = get_raw_records
-      records = sort_records(records)
-      records = filter_records(records)
-      records = paginate_records(records) unless params[:length] == '-1'
+      records = sort_records(records) if params[:order].present?
+      records = filter_records(records) if params[:search].present?
+      records = paginate_records(records) unless params[:length].present? && params[:length] == '-1'
       records
     end
 
