title: Rake task to truncate all tables in Rails 3
body: <p>I would like to have a rake task for truncating all the tables. I have <a href="http://www.manu-j.com/blog/truncate-all-tables-in-a-ruby-on-rails-application/221/" rel="noreferrer">found one</a> on the internet, but it is supposed only for Rails 2 and does not work for <strong>Rails 3</strong> (problem is in getting a database connection).</p>
  
  <p><code>rake db:reset</code> is not an option, because I am using PostgreSQL and it also drops the user. Therefore migration fails. I only want to clear the data.</p>
  
  <p>Do you guys have somehting for me?</p>