title: Laravel 5.1 - Order by two columns not working as intended
body: <p>I have two columns, quarter_number and quarter_year. The quarter_number column stores a value between 1 and 4, while quarter_year stores a year value. I want the data to be sorted like so for example:</p>
  
  <pre><code>ex: (quarter_number - quarter_year)
  4 - 2015
  3 - 2015
  2 - 2015
  1 - 2015
  4 - 2014
  3 - 2014
  etc...
  </code></pre>
  
  <p>Thus it seemed like this statement would work:</p>
  
  <p><code>$last_figures = QuarterData::where('company_id', '=', $company-&gt;id)
         -&gt;orderBy('quarter_number')-&gt;orderBy('quarter_year')-&gt;get();</code></p>
  
  <p>Unfortunately, it doesn't seem to work as intended (which I thought would be similar to a radix sort). It ends up just sorting by the year (or whatever to last orderBy statement is). Do I have to just program my own custom radix sort for this? Or is there a better way?</p>
  
  <p>Thank you.</p>