Suppress Rails logging

Dax Huiberts wo 28 jul 10

When Rails applications get rather complex the amount of log statements can get rather big in development mode. It is not uncommon to get hundreds of lines of SQL log statements.

This creates a problem when you try to insert your own log statements. With all the noise it gets pretty difficult to filter out your own log statements. One way is to prefix your statements with “>>>>>>>>>>” or “==” (or many more of those). If that doesn’t even help there is alway the ‘tail -f log/development.log | grep =’. This is not a very workable sollution either. In this case you also miss your request information. Like how long the request takes or what the request parameters are.

I’ve been using the following code snippet for a week now and it really meets my need:

# config/initializers/suppress_rails_logging.rb

# suppress active record sql logging
class ActiveRecord::ConnectionAdapters::AbstractAdapter
  def log_info(*args); end
end

# suppress 'rendered partial ...' logging
module ActionView::RenderablePartial
  def render(view, local_assigns = {})
    super
  end
end

This snippet of code suppresses the ActiveRecord SQL logging statements and the ActionView ‘rendered partial …’ logging statements. It makes my logs useable again and I still don’t lose my request information logging statements.

Try it out and see for yourself wether this works for you. Please leave a comment for any feedback you have.

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