diff options
Diffstat (limited to 'activerecord/lib/active_record/attribute_methods.rb')
| -rw-r--r-- | activerecord/lib/active_record/attribute_methods.rb | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/attribute_methods.rb b/activerecord/lib/active_record/attribute_methods.rb index f3200aa78a..399c22fb18 100644 --- a/activerecord/lib/active_record/attribute_methods.rb +++ b/activerecord/lib/active_record/attribute_methods.rb @@ -36,6 +36,18 @@ module ActiveRecord # Generates all the attribute related methods for columns in the database # accessors, mutators and query methods. def define_attribute_methods + unless defined?(@attribute_methods_mutex) + ActiveSupport::Deprecation.warn( + "It looks like something (probably a gem/plugin) is removing or overriding the " \ + "ActiveRecord::Base.inherited method. It is important that this hook executes so " \ + "that your models are set up correctly. A workaround has been added to stop this " \ + "causing an error in 3.2, but future versions will simply not work if the hook is " \ + "overridden." + ) + + @attribute_methods_mutex = Mutex.new + end + # Use a mutex; we don't want two thread simaltaneously trying to define # attribute methods. @attribute_methods_mutex.synchronize do |