function bp_links_at_message_notification($content, $poster_user_id, $link_id, $activity_id)
{
global $bp;
/* Scan for @username strings in an activity update. Notify each user. */
$pattern = '/[@]+([A-Za-z0-9-_]+)/';
preg_match_all($pattern, $content, $usernames);
/* Make sure there's only one instance of each username */
if (!($usernames = array_unique($usernames[1]))) {
return false;
}
$link = new BP_Links_Link($link_id);
foreach ((array) $usernames as $username) {
if (!($receiver_user_id = bp_core_get_userid($username))) {
continue;
}
if (!bp_links_is_link_visibile($link, $receiver_user_id)) {
continue;
}
// Now email the user with the contents of the message (if they have enabled email notifications)
if ('no' != get_usermeta($user_id, 'notification_activity_new_mention')) {
$poster_name = bp_core_get_user_displayname($poster_user_id);
$message_link = bp_activity_get_permalink($activity_id);
$settings_link = bp_core_get_user_domain($receiver_user_id) . 'settings/notifications/';
// Set up and send the message
$ud = bp_core_get_core_userdata($receiver_user_id);
$to = $ud->user_email;
$subject = '[' . get_blog_option(BP_ROOT_BLOG, 'blogname') . '] ' . sprintf(__('%s mentioned you in the link "%s"', 'buddypress-links'), stripslashes($poster_name), wp_filter_kses(stripslashes($link->name)));
$message = sprintf(__('%s mentioned you in the link "%s":
"%s"
To view and respond to the message, log in and visit: %s
---------------------
', 'buddypress-links'), $poster_name, wp_filter_kses(stripslashes_deep($link->name)), wp_filter_kses(stripslashes_deep($content)), $message_link);
$message .= sprintf(__('To disable these notifications please log in and go to: %s', 'buddypress'), $settings_link);
// Send it
wp_mail($to, $subject, $message);
}
}
}
function bp_link_is_visible($link = false)
{
global $bp, $links_template;
if (!$link) {
$link =& $links_template->link;
}
return bp_links_is_link_visibile($link);
}
/**
* Cast a user vote for a link
*
* Returns a BP_Links_Link object on successful vote
* in case you need immediate access to the link data
*
* @see BP_Links_Link
* @param integer $link_id
* @param string $up_or_down "up" or "down"
* @return BP_Links_Link|false
*/
function bp_links_cast_vote($link_id, $up_or_down)
{
global $bp;
$bp->links->current_link = new BP_Links_Link($link_id, true);
if (false === bp_links_is_link_visibile($bp->links->current_link)) {
return false;
}
$vote = $bp->links->current_link->vote();
if (!$vote instanceof BP_Links_Vote) {
return false;
}
// determine if member has voted for this link already
$is_first_vote = is_numeric($vote->vote) ? false : true;
// the default behavior is to allow members to change their vote,
// which can be overriden with the configuration constant you see passed
// to the filter below. use this filter to override the `configured` behavior
// for special circumstances. you must return a boolean value!
$allow_change = (bool) apply_filters('bp_links_cast_vote_allow_change', (bool) BP_LINKS_VOTE_ALLOW_CHANGE, $vote);
// member can vote if its first time, or they are allowed to change vote
if ($is_first_vote || $allow_change) {
// the default behavior is to record vote activity.
// this can be overriden with the configuration constant you see below.
if ((bool) BP_LINKS_VOTE_RECORD_ACTIVITY === true) {
// the default behavior is to only record activity if this is their
// original vote. use the filter below to override this behavior.
// you must return a boolean value!
$record_activity = (bool) apply_filters('bp_links_cast_vote_record_activity', $is_first_vote, $vote);
} else {
// do not record activity per configuration constant
$record_activity = false;
}
switch ($up_or_down) {
case 'up':
$vote->up();
break;
case 'down':
$vote->down();
break;
default:
return false;
}
if (true === $bp->links->current_link->save()) {
if ($record_activity) {
// translate up or down string
$up_or_down_translated = 'up' == $up_or_down ? __('up', 'buddypress-links') : __('down', 'buddypress-links');
// record the activity
$activity_action = sprintf(__('%1$s voted %2$s the link %3$s', 'buddypress-links'), bp_core_get_userlink($bp->loggedin_user->id), $up_or_down_translated, '<a href="' . bp_get_link_permalink($bp->links->current_link) . '">' . attribute_escape($bp->links->current_link->name) . '</a>');
bp_links_record_activity(array('action' => apply_filters('bp_links_activity_voted', $activity_action), 'primary_link' => apply_filters('bp_links_activity_voted_primary_link', bp_get_link_permalink($bp->links->current_link)), 'type' => BP_LINKS_ACTIVITY_ACTION_VOTE, 'item_id' => $bp->links->current_link->id));
}
do_action('bp_links_cast_vote_success', $bp->links->current_link->id);
// return the link object
return $bp->links->current_link;
} else {
return false;
}
} else {
// member not allowed change vote
// this is not an error, so return true!
return true;
}
}