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notifier.php
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notifier.php
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<?php
/**
* Ajax endpoint for chat notifier.
*
* Provides the number of unread messages and a list of
* latest messages. These are then used to populate the
* topbar menu item and popup module.
*/
/**
* @todo Could we just make a straight query that checks how many
* "unread_messages" annotations the user has? Is it possible
* to get also already read messages with the same query?
*/
// Do not view edit/delete
elgg_push_context('chat_preview');
$user = elgg_get_logged_in_user_entity();
$chats = elgg_get_entities_from_annotations(array(
'type' => 'object',
'subtype' => 'chat',
'annotation_name' => 'unread_messages',
'annotation_owner_guids' => $user->getGUID(),
'limit' => 5,
/* @todo Ordering doesn't seem to work
'order_by_annotation' => array(
'name' => 'unread_messages',
'direction' => 'desc',
'as' => 'integer',
),
*/
));
$message_count = 0;
$guids = array();
if ($chats) {
foreach ($chats as $chat) {
$message_count += $chat->getUnreadMessagesCount();
$guids[] = $chat->getGUID();
}
}
// If less than 5 unread chats were found, get other chats
$num_chats = count($guids);
if ($num_chats < 5) {
$limit = 5 - $num_chats;
$options = array(
'type' => 'object',
'subtype' => 'chat',
'relationship' => 'member',
'relationship_guid' => $user->getGUID(),
'inverse_relationship' => false,
'limit' => $limit,
);
// Do not get the chats that were fetched earlier
if ($num_chats) {
$guids = implode(',', $guids);
$options['wheres'] = array("e.guid NOT IN ($guids)");
}
$more_chats = elgg_get_entities_from_relationship($options);
$chats = array_merge($chats, $more_chats);
}
$preview = elgg_view_entity_list($chats, array('full_view' => false));
if (empty($preview)) {
$preview = '<ul></ul>';
}
$result = new stdClass();
$result->count = $message_count;
$result->preview = $preview;
echo json_encode($result);