title: Adding a LIKE criteria to a Rails Conditions block
body: <p>Consider the following code which is to be thrown at an AR find:</p>
  
  <pre><code>conditions = []
  conditions[:age] = params[:age] if params[:age].present?
  conditions[:gender] = params[:gender] if params[:gender].present?
  </code></pre>
  
  <p>I need to add another condition which is a LIKE criteria on a 'profile' attribute.  How can I do this, as obviously a LIKE is usually done via an array, not a hash key.</p>