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<?php
/**
* Post a reply to discussion topic
*
*/
// Get input
$entity_guid = (int) get_input('entity_guid');
$text = get_input('group_topic_post');
$annotation_id = (int) get_input('annotation_id');
// reply cannot be empty
if (empty($text)) {
register_error(elgg_echo('grouppost:nopost'));
forward(REFERER);
}
$topic = get_entity($entity_guid);
if (!$topic) {
register_error(elgg_echo('grouppost:nopost'));
forward(REFERER);
}
$user = elgg_get_logged_in_user_entity();
$group = $topic->getContainerEntity();
if (!$group->canWriteToContainer()) {
register_error(elgg_echo('groups:notmember'));
forward(REFERER);
}
// if editing a reply, make sure it's valid
if ($annotation_id) {
$annotation = elgg_get_annotation_from_id($annotation_id);
if (!$annotation->canEdit()) {
register_error(elgg_echo('groups:notowner'));
forward(REFERER);
}
$annotation->value = $text;
if (!$annotation->save()) {
system_message(elgg_echo('groups:forumpost:error'));
forward(REFERER);
}
system_message(elgg_echo('groups:forumpost:edited'));
} else {
// add the reply to the forum topic
$reply_id = $topic->annotate('group_topic_post', $text, $topic->access_id, $user->guid);
if ($reply_id == false) {
system_message(elgg_echo('groupspost:failure'));
forward(REFERER);
}
add_to_river('river/annotation/group_topic_post/reply', 'reply', $user->guid, $topic->guid, "", 0, $reply_id);
system_message(elgg_echo('groupspost:success'));
}
forward(REFERER);
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