protected function SearchApiAbstractProcessor::processFilters in Search API 7

Method for preprocessing query filters.

1 call to SearchApiAbstractProcessor::processFilters()

SearchApiAbstractProcessor::preprocessSearchQuery in includes/processor.inc

Calls processKeys() for the keys and processFilters() for the filters.

File

includes/processor.inc, line 367

Contains SearchApiProcessorInterface and SearchApiAbstractProcessor.

Class

SearchApiAbstractProcessor

Abstract processor implementation that provides an easy framework for only processing specific fields.

Code

protected function processFilters(array &$filters) {
  $fields = $this->index->options['fields'];
  foreach ($filters as $key => &$f) {
    if (is_array($f)) {
      if (isset($fields[$f[0]]) && $this
        ->testField($f[0], $fields[$f[0]])) {

        // We want to allow processors also to easily remove complete filters.
        // However, we can't use empty() or the like, as that would sort out
        // filters for 0 or NULL. So we specifically check only for the empty
        // string, and we also make sure the filter value was actually changed
        // by storing whether it was empty before.
        $empty_string = $f[1] === '';
        $this
          ->processFilterValue($f[1]);
        if ($f[1] === '' && !$empty_string) {
          unset($filters[$key]);
        }
      }
    }
    else {
      $child_filters =& $f
        ->getFilters();
      $this
        ->processFilters($child_filters);
    }
  }
}