/**
* gets pages from the wiki which are linked to the given page
*/
public static function get_linked_names($page_id = false)
{
if ($page_id === false) {
return array();
}
$cache_key = "links/" . $page_id;
$linked_names = json_decode(wkwCache::get_cache($cache_key));
if (!$linked_names) {
$results = self::query(array('query' => 'links', 'term' => $page_id));
$linked_names = array();
if ($results && $results->query && $results->query->pages) {
$all_names = self::get_all_names();
foreach ($results->query->pages as $id => $name) {
if (isset($name->missing)) {
/* no page in wiki yet for this name */
$surname = self::get_unlinked_surname($name->title);
$id = md5($name->title);
$p = array('pageid' => $id, 'title' => $name->title, 'surname' => $surname, 'sortkeyprefix' => $surname, 'urltitle' => false, 'hasDetail' => false);
$po = (object) $p;
/* generate image for name */
$ud = wp_upload_dir();
$nametxt = $ud["basedir"] . '/wkw-cache/names/' . $id . '.txt';
$nameimg = $ud["basedir"] . '/wkw-cache/names/' . $id . '.png';
if (!file_exists($nametext)) {
file_put_contents($nametxt, $name->title);
}
wkwFontImage::generate($po);
$po->lastmod = wkwCache::get_last_modified($id);
$linked_names[] = $po;
} else {
/* page exists - get details from $all_names */
foreach ($all_names as $n) {
if ($n->pageid == $id) {
$p = array('pageid' => $n->pageid, 'title' => $n->title, 'surname' => $n->surname, 'urltitle' => $n->urltitle, 'hasDetail' => true, 'lastmod' => wkwCache::get_last_modified($n->pageid));
$linked_names[] = (object) $p;
break;
}
}
}
}
wkwCache::save_cache($cache_key, json_encode($linked_names));
}
}
return $linked_names;
}
/**
* processes any changes from the datascape options page
*/
public static function process_datascape_options()
{
/* first display any messages from Wordpress */
if (isset($_REQUEST['settings-updated']) && $_REQUEST['settings-updated'] == "true") {
echo '<div id="message" class="updated"><p><strong>Settings saved.</strong></p></div>';
}
settings_errors('wkw_datascape_options');
/* process cache refresh actions */
if (isset($_REQUEST["action"])) {
switch ($_REQUEST["action"]) {
case "refreshDataCache":
/* refreshes just the data cache */
if (isset($_REQUEST["wkw_nonce"]) && wp_verify_nonce($_REQUEST["wkw_nonce"], 'refreshDataCache')) {
wkwCache::force_refresh("data");
echo '<div class="updated"><p>Primary data cache refreshed</p></div>';
}
break;
case "refreshBiogCache":
/* refreshes just the data cache */
if (isset($_REQUEST["wkw_nonce"]) && wp_verify_nonce($_REQUEST["wkw_nonce"], 'refreshBiogCache')) {
wkwCache::force_refresh("bios");
echo '<div class="updated"><p>Biography data cache refreshed</p></div>';
}
break;
case "refreshLinkCache":
/* refreshes just the data cache */
if (isset($_REQUEST["wkw_nonce"]) && wp_verify_nonce($_REQUEST["wkw_nonce"], 'refreshLinkCache')) {
wkwCache::force_refresh("links");
echo '<div class="updated"><p>link data cache refreshed</p></div>';
}
break;
case "refreshImageCache":
/* refreshesimage cache */
if (isset($_REQUEST["wkw_nonce"]) && wp_verify_nonce($_REQUEST["wkw_nonce"], 'refreshImageCache')) {
wkwCache::force_refresh("images");
echo '<div class="updated"><p>Image cache cleared - new images generated</p></div>';
}
break;
case "refreshImage":
/* refreshes a single image */
$cacheDir = wkwCache::get_cache_dir("names");
if (isset($_REQUEST["wkw_pageid"])) {
$all_names = wkwMediaWiki::get_all_names();
foreach ($all_names as $name) {
if ($name->pageid == $_REQUEST["wkw_pageid"]) {
wkwFontImage::generate($name, true);
echo '<div class="updated"><p>New image generated for ' . $name->title . '</p></div>';
break;
}
}
} elseif (isset($_REQUEST["wkw_linkid"])) {
$f_img = $cacheDir . '/' . $_REQUEST["wkw_linkid"] . '.png';
$f_name = $cacheDir . '/' . $_REQUEST["wkw_linkid"] . '.txt';
if (file_exists($f_name)) {
$name = file_get_contents($f_name);
if (!empty($name)) {
$surname = wkwFontImage::get_unlinked_surname($name);
$n = (object) array('pageid' => $_REQUEST["wkw_linkid"], 'title' => $name, 'surname' => $surname, 'sortkeyprefix' => $surname, 'urltitle' => false, 'hasDetail' => false);
/* generate image for name */
wkwFontImage::generate($n);
echo '<div class="updated"><p>New image generated for ' . $name . '</p></div>';
}
}
}
break;
}
}
}
/**
* cache freshener - called from theme option screen
*/
public static function force_refresh($which = "data")
{
set_time_limit(0);
$all_names = wkwMediaWiki::get_all_names();
if ($all_names && count($all_names)) {
switch ($which) {
case "images":
self::clear_image_cache();
foreach ($all_names as $name) {
wkwFontImage::generate($name);
}
break;
case "bios":
case "links":
foreach ($all_names as $name) {
$getdata = true;
$data = wkwCache::get_cache_dir($which) . $name->pageid . '.json';
$touched = strtotime($name->touched);
if (file_exists($data) && filemtime($data) >= $touched) {
$getdata = false;
}
if ($getdata) {
@unlink($data);
$method = $which == "bios" ? "get_page_data" : "get_linked_names";
wkwMediaWiki::$method($name->pageid);
}
}
break;
default:
self::clear_data_cache();
$all_names = wkwMediaWiki::get_all_names(true);
break;
}
}
}
