title: Getting qty of products in particular orders in Magento
body: <p>I would like to ask you for piece of information that would help me to resolve my issue.
  My purpose is to get from the Magento database particular product qty in every order (orders must be in exact definied status). I use batch/script standing apart from Magento but uses Mage:app. I do not know if I should start with models (which seems to be logical approach but slow in the same time) or to work directly on database (which is more difficult).</p>
  
  <p>Thank you for any advice.</p>
  
  <p>Regards,</p>