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path: root/mod/groups/actions/join.php
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<?php
/**
 * Join a group action.
 *
 * @package ElggGroups
 */

$user_guid = get_input('user_guid', elgg_get_logged_in_user_guid());
$group_guid = get_input('group_guid');

// @todo fix for #287
// disable access to get entity.
$invitations = groups_get_invited_groups($user_guid, TRUE);

if (in_array($group_guid, $invitations)) {
	$ia = elgg_set_ignore_access(TRUE);
}

$user = get_entity($user_guid);
$group = get_entity($group_guid);

set_page_owner($group->guid);

if (($user instanceof ElggUser) && ($group instanceof ElggGroup)) {
	if ($group->isPublicMembership() || $group->canEdit($user->guid)) {
		if ($group->join($user)) {
			system_message(elgg_echo("groups:joined"));

			// Remove any invite or join request flags
			remove_entity_relationship($group->guid, 'invited', $user->guid);
			remove_entity_relationship($user->guid, 'membership_request', $group->guid);

			// add to river
			add_to_river('river/relationship/member/create','join',$user->guid,$group->guid);

			forward($group->getURL());
		} else {
			register_error(elgg_echo("groups:cantjoin"));
		}
	} else {
		// Closed group, request membership
		system_message(elgg_echo('groups:privategroup'));
		forward(elgg_add_action_tokens_to_url("action/groups/joinrequest?user_guid=$user_guid&group_guid=$group_guid", FALSE));
	}
} else {
	register_error(elgg_echo("groups:cantjoin"));
}

forward(REFERER);