m SCRUD operation on the database table &quot;core...">ExchangeRate</a> class on the database table "core.exchange_rates". </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">exchangeRate</td><td>The instance of "ExchangeRate" class to insert or update.</td></tr>
    <tr><td class="paramname">customFields</td><td>The custom field collection.</td></tr>
  </table>
  </dd>
</dl>
<dl class="exception"><dt>Exceptions</dt><dd>
  <table class="exception">
    <tr>