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path: root/mod/groups/actions/addtogroup.php
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<?php
/**
 * Add a user to a group
 *
 * @package ElggGroups
 */
$logged_in_user = elgg_get_logged_in_user_entity();

$user_guid = get_input('user_guid');
if (!is_array($user_guid))
	$user_guid = array($user_guid);
$group_guid = get_input('group_guid');

if (sizeof($user_guid)) {
	foreach ($user_guid as $u_id) {
		$user = get_entity($u_id);
		$group = get_entity($group_guid);

		set_page_owner($group->guid);

		if ($user && $group) {

			//if (elgg_get_logged_in_user_guid() == $group->owner_guid)
			if ($group->canEdit()) {

				// If the group is open or the user has requested membership
				if (
						(check_entity_relationship($user->guid, 'membership_request', $group->guid)) ||
						($group->isPublicMembership())
				) {

					if (!$group->isMember($user)) {
						// Remove relationships
						remove_entity_relationship($group->guid, 'invited', $user->guid);
						remove_entity_relationship($user->guid, 'membership_request', $group->guid);

						//add_entity_relationship($user->guid, 'member', $group->guid);
						$group->join($user);

						// send welcome email
						notify_user($user->getGUID(), $group->owner_guid,
								elgg_echo('groups:welcome:subject', array($group->name)),
								elgg_echo('groups:welcome:body', array($user->name, $group->name, $group->getURL())),
								NULL);

						system_message(elgg_echo('groups:addedtogroup'));
					}
					else
						register_error(elgg_echo("groups:cantjoin"));
				}
				else {
					if ($user->isFriend()) {

						// Create relationship
						add_entity_relationship($group->guid, 'invited', $user->guid);

						// Send email
						$url = elgg_get_site_url() . "pg/groups/invited?user_guid={$user->guid}&group_guid={$group->guid}";
						if (notify_user($user->getGUID(), $group->owner_guid,
										elgg_echo('groups:invite:subject', array($user->name, $group->name)),
										elgg_echo('groups:invite:body', array($user->name, $logged_in_user->name, $group->name, $url)),
										NULL))
							system_message(elgg_echo("groups:userinvited"));
						else
							register_error(elgg_echo("groups:usernotinvited"));
					}
					else
						register_error(elgg_echo("groups:usernotinvited"));
				}
			}
			else
				register_error(elgg_echo("groups:notowner"));
		}
	}
}

forward(REFERER);