From c2d97fb4aa11362782a747ed2b76bcf070ddb630 2016-10-20 16:48:22
From: Jean-Philippe Lang <jp_lang@yahoo.fr>
Date: 2016-10-20 16:48:22
Subject: [PATCH] Set @available_filters as an empty hash if nil.

git-svn-id: http://svn.redmine.org/redmine/trunk@15911 e93f8b46-1217-0410-a6f0-8f06a7374b81

---

diff --git a/app/models/query.rb b/app/models/query.rb
index ef2efc7..b0b39da 100644
--- a/app/models/query.rb
+++ b/app/models/query.rb
@@ -456,6 +456,7 @@ class Query < ActiveRecord::Base
   def available_filters
     unless @available_filters
       initialize_available_filters
+      @available_filters ||= {}
       @available_filters.each do |field, options|
         options[:name] ||= l(options[:label] || "field_#{field}".gsub(/_id$/, ''))
       end