Problem to log AR queries to DB

ar_extension.rb

class ActiveRecord::ConnectionAdapters::MysqlAdapter
  def execute(sql, name = nil, skip_logging = false)
    log(sql, name) { @connection.query(sql) }  unless skip_logging

  rescue ActiveRecord::StatementInvalid => exception
    if exception.message.split(":").first =~ /Packets out of order/
      raise ActiveRecord::StatementInvalid, "'Packets out of order' error was received from the database. Please update your mysql bindings (gem install mysql) and read http://dev.mysql.com/doc/mysql/en/password-hashing.html for more information.  If you're on Windows, use the Instant Rails installer to get the updated mysql bindings."
    else
      raise
    end
  end
end

ar_logger.rb

ActiveRecord::ConnectionAdapters::AbstractAdapter.class_eval do
  def log_with_syspanel_logger(sql, name, &block)
    if Thread.current["syspanel.sql.logger.enabled"]
      # When I comment the line below I don't get any error
      SyspanelSqlLog.connection.execute("INSERT INTO syspanel_sql_logs (`sql`, `name`) VALUES('#{sql}', '#{name}')", nil, true)
    end

    log_without_syspanel_logger(sql, name, &block)
  end

  unless self.instance_methods.include?('log_without_syspanel_logger')
    alias_method_chain :log, :syspanel_logger
  end
end

log

/!\ FAILSAFE /!\  Tue Sep 06 11:31:43 -0500 2011
  Status: 500 Internal Server Error
  stack level too deep
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/mysql_adapter.rb:7:in `define_all_hashes_method!'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/mysql_adapter.rb:71:in `mysql_connection'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `send'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `new_connection'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:245:in `checkout_new_connection'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:188:in `checkout'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `loop'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `checkout'
    /Users/rdavila/.rvm/rubies/ruby-1.8.7-p302/lib/ruby/1.8/monitor.rb:242:in `synchronize'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:183:in `checkout'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:98:in `connection'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:326:in `retrieve_connection'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_specification.rb:123:in `retrieve_connection'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_specification.rb:115:in `connection'
    /Users/rdavila/projects/rails/app/lib/syspanel_sql_logger.rb:4:in `log'
    /Users/rdavila/projects/rails/app/config/initializers/ar_extensions.rb:6:in `execute'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/mysql_adapter.rb:586:in `configure_connection'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/mysql_adapter.rb:581:in `connect'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/mysql_adapter.rb:204:in `initialize'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/mysql_adapter.rb:76:in `new'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/mysql_adapter.rb:76:in `mysql_connection'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `send'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `new_connection'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:245:in `checkout_new_connection'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:188:in `checkout'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `loop'
    /Users/rdavila/.rvm/gems/ruby-1.8.7-p302@rails2/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `checkout'
    /Users/rdavila/.rvm/rubies/ruby-1.8.7-p302/lib/ruby/1.8/monitor.rb:242:in `synchronize'

middleware.rb

class SyspanelSqlLogger
  def initialize(app)
    @app = app
  end

  def call(env)
    Thread.current["syspanel.sql.logger.enabled"] = (env['REQUEST_URI'] =~ /mypath/).present?
    
    @app.call(env)
  end
end