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MDL-56139 message: ajax poll for new messages in message area

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Ryan Wyllie
2016-11-16 10:22:33 +08:00
committed by Mark Nelson
parent b4d6669dd0
commit fb1469d84f
15 changed files with 697 additions and 24 deletions
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message/classes/api.php
+23 -2
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@@ -291,11 +291,32 @@ class api {
* @param int $limitfrom
* @param int $limitnum
* @param string $sort
* @param int $createdfrom the timestamp from which the messages were created
* @param int $createdto the time up until which the message was created
* @return array
*/
public static function get_messages($userid, $otheruserid, $limitfrom = 0, $limitnum = 0, $sort = 'timecreated ASC') {
public static function get_messages($userid, $otheruserid, $limitfrom = 0, $limitnum = 0,
$sort = 'timecreated ASC', $createdfrom = 0, $createdto = 0) {
if (!empty($createdfrom)) {
// Check the cache to see if we even need to do a DB query.
$cache = \cache::make('core', 'message_last_created');
$ids = [$otheruserid, $userid];
sort($ids);
$key = implode('_', $ids);
$lastcreated = $cache->get($key);
// The last known message time is earlier than the one being requested so we can
// just return an empty result set rather than having to query the DB.
if ($lastcreated && $lastcreated < $createdfrom) {
return [];
}
}
$arrmessages = array();
if ($messages = helper::get_messages($userid, $otheruserid, 0, $limitfrom, $limitnum, $sort)) {
if ($messages = helper::get_messages($userid, $otheruserid, 0, $limitfrom, $limitnum,
$sort, $createdfrom, $createdto)) {
$arrmessages = helper::create_messages($userid, $messages);
}