Refactor Procedure#switch_list_order

app/models/procedure.rb

@@ -82,13 +82,18 @@ class Procedure < ActiveRecord::Base
   end
 
   def switch_list_order(list, index_of_first_element)
-    return false if index_of_first_element < 0
+    if index_of_first_element < 0 ||
-    return false if index_of_first_element == list.count - 1
+      index_of_first_element == list.count - 1 ||
-    return false if list.count < 1
+      list.count < 1
+
+      false
+    else
       list[index_of_first_element].update_attributes(order_place: index_of_first_element + 1)
       list[index_of_first_element + 1].update_attributes(order_place: index_of_first_element)
+
       true
     end
+  end
 
   def locked?
     published?