AR callbacks wrapper
module CallbackTrace
def self.included kls
kls.send :alias_method_chain, :_compile_filter, :trace
end
def _compile_filter_with_trace filter
generated_code = _compile_filter_without_trace(filter)
return generated_code if filter.is_a?(Array)
method_name = generated_code.to_s.split(%r{\(|\s}).first
_klass = @klass
prelogger = ->{
Rails.logger.info("START [#{filter.class}](#{generated_code})")
Rails.logger.info("#{_klass} #{Time.now}")
if imethod=(_klass.instance_method(method_name) rescue nil)
begin
Rails.logger.info(imethod.source)
rescue MethodSource::SourceNotFoundError
Rails.logger.info("NO SOURCE FOR #{generated_code}")
end
else
Rails.logger.info("NO METHOD: #{method_name} for #{@klass}")
end
}
postlogger = ->{
Rails.logger.info("ENDED #{generated_code} #{Time.now}")
}
@klass.send :define_method, "prelogger_#{method_name}", &prelogger
@klass.send :define_method, "postlogger_#{method_name}", &postlogger
"(prelogger_#{method_name}; retval = retval = #{generated_code}; " +
"postlogger_#{method_name}; retval)"
end
end
ActiveSupport::Callbacks::Callback.send :include, CallbackTrace