Force the encoding of values returned from YAML.

This is a workaround for an issue where YAML in ruby 1.8 tags UTF-8
heavy strings as binary, resulting in them being retrieved under 1.9
as ASCII-8BIT which can't be concatenated with UTF-8.

Described as  "Deep deep YAML oddness" in
https://www.zendesk.com/blog/upgrade-the-road-to-1-9/.

1 files changed, 7 insertions, 1 deletions

diff --git a/app/models/info_request_event.rb b/app/models/info_request_event.rb
index 9dde3ba80..8a113cbf8 100644
--- a/app/models/info_request_event.rb
+++ b/app/models/info_request_event.rb
@@ -279,9 +279,15 @@ class InfoRequestEvent < ActiveRecord::Base
         end
         self.params_yaml = params.to_yaml
     end
+
     def params
-        YAML.load(self.params_yaml)
+        param_hash = YAML.load(params_yaml)
+        param_hash.each do |key, value|
+            param_hash[key] = value.force_encoding('UTF-8') if value.respond_to?(:force_encoding)
+        end
+        param_hash
     end
+
     def params_yaml_as_html
         ret = ''
         # split out parameters into old/new diffs, and other ones