Merge branch 'master' of https://github.com/rails/rails

1 files changed, 8 insertions, 2 deletions

diff --git a/activerecord/lib/active_record/attribute_methods/write.rb b/activerecord/lib/active_record/attribute_methods/write.rb
index 7a2de3bf80..3c4dab304e 100644
--- a/activerecord/lib/active_record/attribute_methods/write.rb
+++ b/activerecord/lib/active_record/attribute_methods/write.rb
@@ -10,11 +10,17 @@ module ActiveRecord
       module ClassMethods
         protected
           def define_method_attribute=(attr_name)
-            generated_attribute_methods.module_eval("def #{attr_name}=(new_value); write_attribute('#{attr_name}', new_value); end", __FILE__, __LINE__)
+            if attr_name =~ /^[a-zA-Z_]\w*[!?=]?$/
+              generated_attribute_methods.module_eval("def #{attr_name}=(new_value); write_attribute('#{attr_name}', new_value); end", __FILE__, __LINE__)
+            else
+              generated_attribute_methods.send(:define_method, "#{attr_name}=") do |new_value|
+                write_attribute(attr_name, new_value)
+              end
+            end
           end
       end
 
-      # Updates the attribute identified by <tt>attr_name</tt> with the specified +value+. Empty strings 
+      # Updates the attribute identified by <tt>attr_name</tt> with the specified +value+. Empty strings
       # for fixnum and float columns are turned into +nil+.
       def write_attribute(attr_name, value)
         attr_name = attr_name.to_s