I made a change in Rails, and broke my gem

Error message has been changed on rails/rails#17019 And did_you_mean should be aware of it.
ruby · Oct 24, 2014 · 4252174 · 4252174
1 parent fcf8c7f
commit 4252174
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diff --git a/Appraisals b/Appraisals
@@ -19,7 +19,7 @@ appraise "activerecord_41" do
 end
 
 appraise "activerecord_42" do
-  gem "activerecord", "~> 4.2.0.beta1"
+  gem "activerecord", "~> 4.2.0.beta2"
 end
 
 appraise "activerecord_edge" do

diff --git a/lib/did_you_mean/finders/similar_attribute_finder.rb b/lib/did_you_mean/finders/similar_attribute_finder.rb
@@ -5,7 +5,7 @@ class SimilarAttributeFinder
 
     def initialize(exception)
       @columns        = exception.frame_binding.eval("self.class").columns
-      @attribute_name = exception.original_message.gsub("unknown attribute: ", "")
+      @attribute_name = (/unknown attribute(: | ')(\w+)('* for .*)*/ =~ exception.original_message) && $2
     end
 
     def words