title: Can a Rails `where` query with question marks be done more elegantly?
body: <p>Let's say you have a simple query in Rails which goes like this</p>
  
  <pre><code>a = 42
  Klass.where("`column_1` = ? OR `column_2` = ? OR `column_3` = ?", a, a, a) 
  </code></pre>
  
  <p>Can this be done more elegantly so that you don't need to type <code>a, a, a</code> three times? It works fine but it looks horrible.</p>