public function FacetapiUrlProcessorSession::fetchParams in Facet API Bonus 7

Implements FacetapiUrlProcessor::fetchParams().

Use $_GET as the source for facet data when available and fall back to $_SESSION, also storing the $_GET bits into the session.

File

modules/facetapi_bonus_session/includes/facetapi/url_processor_session.inc, line 28

A facet handler that falls back onto session set variables.

Class

FacetapiUrlProcessorSession

Url processor plugin that retrieves facet data from the query string.

Code

public function fetchParams() {
  $return = parent::fetchParams();

  // Get hold of our namespaced session variable.
  $session =& $this
    ->getSession();

  // Check if we need to update the session with a new request.
  if (isset($_GET[$this->filterKey])) {
    $session[$this->filterKey] = $_GET[$this->filterKey] == 'clear' ? array() : $_GET[$this->filterKey];

    // Strip out any empty filters.
    foreach ($session[$this->filterKey] as $i => $facet) {
      $parts = explode(':', $facet);
      if (empty($parts[1])) {
        unset($session[$this->filterKey][$i]);
      }
    }
  }
  return array_merge($return, $session);
}