function ad_cache_file_validate in Advertisement 7

Same name and namespace in other branches

1. 5.2 cache/file/ad_cache_file.inc \ad_cache_file_validate()
2. 6.3 cache/file/ad_cache_file.inc \ad_cache_file_validate()
3. 6.2 cache/file/ad_cache_file.inc \ad_cache_file_validate()

Validate advertisement ids, filtering those that shouldn't be displayed.

File

cache/file/ad_cache_file.inc, line 126

A plug in for the ad.module, providing a file cache mechanism for improved performance when displaying ads.

Code

function ad_cache_file_validate($aids, $displayed, $hostid) {
  $valid = array();
  if (is_array($aids)) {
    $cache = ad_cache_file_cache();
    foreach ($aids as $aid) {

      // Only include aids that are in our cache, others are not valid in our
      // context.  Also, don't display the same ad twice.
      if (isset($cache['ad'][$aid]) && !in_array($aid, $displayed)) {
        $valid[] = $aid;
      }
    }
  }
  if (adserve_variable('debug')) {
    $count = sizeof($valid);
    _debug_echo("File cache: found {$count} valid advertisements.");
  }
  return $valid;
}