/**
* Clear the transient cache when postmeta updated with new values
*
* @since 1.0
* @see update_metadata()
* @param $meta_id meta_id value from database row
* @param int $post_id post identifier
* @param string $meta_key the key of the updated field
* @param string $meta_value the new value
*/
public static function clear_cache($meta_id, $post_id, $meta_key, $meta_value)
{
if ($meta_key !== 'angellist-companies') {
return;
}
$post_id = absint($post_id);
if ($post_id < 1) {
return;
}
if (!class_exists('AngelList_Content')) {
include_once dirname(__FILE__) . '/content.php';
}
// key differs based on is_ssl boolean value. trigger both
foreach (array(true, false) as $ssl) {
delete_transient(AngelList_Content::cache_key($post_id, $ssl));
}
}
/**
* Append AngelList content to post content
*
* @since 1.0
* @param string post content
* @return string post content with AngelList content appended
*/
public function content($content)
{
global $post;
if (!(in_the_loop() && isset($post) && $content && isset($this->company_ids) && is_array($this->company_ids))) {
return $content;
}
$post_id = absint($post->ID);
if ($post_id < 1) {
return $content;
}
$cache_key = AngelList_Content::cache_key($post_id, is_ssl());
$angellist_content = get_transient($cache_key);
if (empty($angellist_content)) {
$angellist_content = AngelList_Content::generate_content($this->company_ids);
// store markup for one hour.
// speeds up page generation, takes heat off the AngelList API server
if ($angellist_content) {
set_transient($cache_key, $angellist_content, 3600);
}
}
unset($cache_key);
// add a newline to separate new content from the last line of a post
// avoids possible errors with oEmbed or other single-line detected content on the last line when priority < 10
if ($angellist_content) {
return $content . "\n" . $angellist_content;
}
return $content;
}
