private static function _reset()
{
self::$_prefs = null;
}
/**
* A convenience function to assist in doing certain tasks only once per day.
* This method will convert the key into a preference, and then check the value of that preference
* if it is more than 24 hours since the last time this method was called for this preference
* then the value of the preference is updated to the current time and FALSE is returned.
* Otherwise TRUE is returned.
*
* @param string $key
* @return bool
*/
public static function done_today($key)
{
$key = md5(__METHOD__ . $key);
$val = \cms_siteprefs::get($key);
if (time() - $val < 24 * 3600) {
return TRUE;
}
\cms_siteprefs::set($key, time());
return FALSE;
}
/**
* Sets the given site perference with the given value.
*
* @since 0.6
* @param string The preference name
* @param mixed The preference value (will be stored as a string)
* @return void
*/
function set_site_preference($prefname, $value)
{
return cms_siteprefs::set($prefname, $value);
}
/**
* @ignore
*/
private static function _save_cache()
{
$cache_key = 'c' . md5(__CLASS__);
\cms_siteprefs::set($cache_key, serialize(self::$_cache));
}
