title: Ruby/Rails - Access a "lookup" table without modeling it?
body: <p>This is for a Ruby on Rails 3.0.x project.</p>
  
  <p>I have a "lookup" table with data from a vendor.</p>
  
  <p>When I import data from another source, I want to check this table (join on a SKU) for extra data.</p>
  
  <p>It doesn't seem right to me to create a model for this table in my app.  The data will never be changed by my app, and it doesn't need to have any model associations beyond the data lookup I just mentioned.  It's just occasionally accessed to check for some info.</p>
  
  <p>What is the best practice to access this table?</p>
  
  <p>Thanks.</p>