//check to see if the user has already liked the item
if (elgg_annotation_exists($entity_guid, 'likes')) {
returnAjaxResult(false, elgg_echo("likes:alreadyliked"), $entity);
exit;
}
// Let's see if we can get an entity with the specified GUID
$entity = get_entity($entity_guid);
if (!$entity) {
returnAjaxResult(false, elgg_echo("likes:notfound"), $entity);
exit;
}
// limit likes through a plugin hook (to prevent liking your own content for example)
if (!$entity->canAnnotate(0, 'likes')) {
// plugins should register the error message to explain why liking isn't allowed
returnAjaxResult(false);
exit;
}
$user = elgg_get_logged_in_user_entity();
$annotation = create_annotation($entity->guid, 'likes', "likes", "", $user->guid, $entity->access_id);
// tell user annotation didn't work if that is the case
if (!$annotation) {
returnAjaxResult(false, elgg_echo("likes:failure"), $entity);
exit;
}
// notify if poster wasn't owner
if ($entity->owner_guid != $user->guid) {
likes_notify_user($entity->getOwnerEntity(), $user, $entity);
}
//system_message(elgg_echo("likes:likes"));
returnAjaxResult(true, elgg_echo("likes:likes"), $entity);
exit;
<?php
/**
* Elgg delete like action
*
*/
$likeid = (int) get_input('likeid');
$like = elgg_get_annotation_from_id($likeid);
if (!$like) {
returnAjaxResult(false, elgg_echo("likes:notdeleted"));
exit;
}
$entity_guid = $like->entity_guid;
$entity = get_entity($like->entity_guid);
if (!$entity) {
returnAjaxResult(false, elgg_echo("likes:notdeleted"), $entity);
exit;
}
if (elgg_delete_annotation_by_id($likeid)) {
returnAjaxResult(true, elgg_echo("likes:deleted"), $entity);
} else {
returnAjaxResult(false, elgg_echo("likes:notdeleted"), $entity);
}
exit;