title: How do I do a LIKE % query in ActiveRecord?
body: <p>I'm trying to find some items that contain a certain string. If I do:</p>
  
  <pre><code>MyModel.where("description LIKE ?",keyword)
  </code></pre>
  
  <p>it will generate a query for an exact match. I would like to make it generate a <code>LIKE %keyword%</code> query. How can I do that?</p>