function resp_img_expire_cache_alter in Responsive images and styles 7

Support for purge/expire module. Specific for nginx / barracuda Clears the cache for anonymous users and for the current user Required changes to nginx config files nginx_speed_purge.conf change fastcgi_cache_purge speed $1$host$request_method$2$is_args$args; to fastcgi_cache_purge speed $1$host$2; nginx_advanced_include.conf change fastcgi_cache_key "$device$host$key_uri$cookie_OctopusCacheID"; to fastcgi_cache_key "$device$host$key_uri$cookie_OctopusCacheID$cookie_respimg";

File

./resp_img.module, line 290

Code

function resp_img_expire_cache_alter(&$expire, $node, &$paths) {
  if (variable_get('resp_img_purgeexpire', FALSE)) {
    if (!is_array($expire)) {
      return;
    }

    // make array unique
    $expire = array_unique($expire);

    // add a copy of each path for each defined suffix (using width)
    $extra_paths = array();
    $widths = resp_img_suffix_load_all_breakpoints();
    foreach ($widths as $k => $v) {
      foreach ($expire as $path) {
        $extra_paths[] = $path . $v;

        // if Cache cookie is set add a copy of each path for the current user
        if (isset($_COOKIE['OctopusCacheID'])) {
          $extra_paths[] = $path . $_COOKIE['OctopusCacheID'] . $v;
        }
      }
    }
    $expire = array_merge($expire, $extra_paths);
  }
}