deprecated-1.9.php

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<?php

function full_url() {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use current_page_url()', 1.9);
    $request = _elgg_services()->request;
    $url = $request->getSchemeAndHttpHost();

    // This is here to prevent XSS in poorly written browsers used by 80% of the population.
    // svn commit [5813]: https://github.com/Elgg/Elgg/commit/0c947e80f512cb0a482b1864fd0a6965c8a0cd4a
    // @todo encoding like this should occur when inserting into web page, not here
    $quotes = array('\'', '"');
    $encoded = array('%27', '%22');
    return $url . str_replace($quotes, $encoded, $request->getRequestUri());
}

function elgg_register_entity_url_handler($entity_type, $entity_subtype, $function_name) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use the plugin hook in \ElggEntity::getURL()', 1.9);
    global $CONFIG;

    if (!is_callable($function_name, true)) {
        return false;
    }

    if (!isset($CONFIG->entity_url_handler)) {
        $CONFIG->entity_url_handler = array();
    }

    if (!isset($CONFIG->entity_url_handler[$entity_type])) {
        $CONFIG->entity_url_handler[$entity_type] = array();
    }

    $CONFIG->entity_url_handler[$entity_type][$entity_subtype] = $function_name;

    return true;
}

function elgg_register_relationship_url_handler($relationship_type, $function_name) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use the plugin hook in getURL()', 1.9);
    global $CONFIG;

    if (!is_callable($function_name, true)) {
        return false;
    }

    if (!isset($CONFIG->relationship_url_handler)) {
        $CONFIG->relationship_url_handler = array();
    }

    $CONFIG->relationship_url_handler[$relationship_type] = $function_name;

    return true;
}

function get_relationship_url($id) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggRelationship::getURL()', 1.9);
    global $CONFIG;

    $id = (int)$id;

    if ($relationship = get_relationship($id)) {
        $view = elgg_get_viewtype();

        $guid = $relationship->guid_one;
        $type = $relationship->relationship;

        $url = "";

        $function = "";
        if (isset($CONFIG->relationship_url_handler[$type])) {
            $function = $CONFIG->relationship_url_handler[$type];
        }
        if (isset($CONFIG->relationship_url_handler['all'])) {
            $function = $CONFIG->relationship_url_handler['all'];
        }

        if (is_callable($function)) {
            $url = call_user_func($function, $relationship);
        }

        if ($url == "") {
            $nameid = $relationship->id;

            $url = elgg_get_site_url()  . "export/$view/$guid/relationship/$nameid/";
        }

        return $url;
    }

    return false;
}

function elgg_register_extender_url_handler($extender_type, $extender_name, $function_name) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use the plugin hook in getURL()', 1.9, 2);

    global $CONFIG;

    if (!is_callable($function_name, true)) {
        return false;
    }

    if (!isset($CONFIG->extender_url_handler)) {
        $CONFIG->extender_url_handler = array();
    }
    if (!isset($CONFIG->extender_url_handler[$extender_type])) {
        $CONFIG->extender_url_handler[$extender_type] = array();
    }
    $CONFIG->extender_url_handler[$extender_type][$extender_name] = $function_name;

    return true;
}

function get_extender_url(\ElggExtender $extender) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggExtender::getURL()', 1.9);
    global $CONFIG;

    $view = elgg_get_viewtype();

    $guid = $extender->entity_guid;
    $type = $extender->type;

    $url = "";

    $function = "";
    if (isset($CONFIG->extender_url_handler[$type][$extender->name])) {
        $function = $CONFIG->extender_url_handler[$type][$extender->name];
    }

    if (isset($CONFIG->extender_url_handler[$type]['all'])) {
        $function = $CONFIG->extender_url_handler[$type]['all'];
    }

    if (isset($CONFIG->extender_url_handler['all']['all'])) {
        $function = $CONFIG->extender_url_handler['all']['all'];
    }

    if (is_callable($function)) {
        $url = call_user_func($function, $extender);
    }

    if ($url == "") {
        $nameid = $extender->id;
        if ($type == 'volatile') {
            $nameid = $extender->name;
        }
        $url = "export/$view/$guid/$type/$nameid/";
    }

    return elgg_normalize_url($url);
}

function get_annotation_url($id) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggAnnotation::getURL()', 1.9);
    $id = (int)$id;

    if ($extender = elgg_get_annotation_from_id($id)) {
        return get_extender_url($extender);
    }
    return false;
}

function elgg_register_metadata_url_handler($extender_name, $function) {
    // deprecation notice comes from elgg_register_extender_url_handler()
    return elgg_register_extender_url_handler('metadata', $extender_name, $function);
}

function elgg_register_annotation_url_handler($extender_name = "all", $function_name) {
    // deprecation notice comes from elgg_register_extender_url_handler()
    return elgg_register_extender_url_handler('annotation', $extender_name, $function_name);
}

function get_group_members($group_guid, $limit = 10, $offset = 0, $site_guid = 0, $count = false) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggGroup::getMembers()', 1.9);

    // in 1.7 0 means "not set."  rewrite to make sense.
    if (!$site_guid) {
        $site_guid = ELGG_ENTITIES_ANY_VALUE;
    }

    return elgg_get_entities_from_relationship(array(
        'relationship' => 'member',
        'relationship_guid' => $group_guid,
        'inverse_relationship' => true,
        'type' => 'user',
        'limit' => $limit,
        'offset' => $offset,
        'count' => $count,
        'site_guid' => $site_guid
    ));
}

function add_object_to_group($group_guid, $object_guid) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggGroup::addObjectToGroup()', 1.9);
    $group_guid = (int)$group_guid;
    $object_guid = (int)$object_guid;

    $group = get_entity($group_guid);
    $object = get_entity($object_guid);

    if ((!$group) || (!$object)) {
        return false;
    }

    if (!($group instanceof \ElggGroup)) {
        $msg = "GUID:" . $group_guid . " is not a valid " . '\ElggGroup';
        throw new \InvalidClassException($msg);
    }

    if (!($object instanceof \ElggObject)) {
        $msg = "GUID:" . $object_guid . " is not a valid " . '\ElggObject';
        throw new \InvalidClassException($msg);
    }

    $object->container_guid = $group_guid;
    return $object->save();
}

function remove_object_from_group($group_guid, $object_guid) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggGroup::removeObjectFromGroup()', 1.9);
    $group_guid = (int)$group_guid;
    $object_guid = (int)$object_guid;

    $group = get_entity($group_guid);
    $object = get_entity($object_guid);

    if ((!$group) || (!$object)) {
        return false;
    }

    if (!($group instanceof \ElggGroup)) {
        $msg = "GUID:" . $group_guid . " is not a valid " . '\ElggGroup';
        throw new \InvalidClassException($msg);
    }

    if (!($object instanceof \ElggObject)) {
        $msg = "GUID:" . $object_guid . " is not a valid " . '\ElggObject';
        throw new \InvalidClassException($msg);
    }

    $object->container_guid = $object->owner_guid;
    return $object->save();
}

function is_group_member($group_guid, $user_guid) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggGroup::isMember()', 1.9);
    $object = check_entity_relationship($user_guid, 'member', $group_guid);
    if ($object) {
        return true;
    } else {
        return false;
    }
}


function get_users_membership($user_guid) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggUser::getGroups()', 1.9);
    $options = array(
        'type' => 'group',
        'relationship' => 'member',
        'relationship_guid' => $user_guid,
        'inverse_relationship' => false,
        'limit' => false,
    );
    return elgg_get_entities_from_relationship($options);
}

function user_is_friend($user_guid, $friend_guid) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggUser::isFriendsOf() or \ElggUser::isFriendsWith()', 1.9);
    return check_entity_relationship($user_guid, "friend", $friend_guid) !== false;
}

function get_user_friends($user_guid, $subtype = ELGG_ENTITIES_ANY_VALUE, $limit = 10,
$offset = 0) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggUser::getFriends()', 1.9);

    return elgg_get_entities_from_relationship(array(
        'relationship' => 'friend',
        'relationship_guid' => $user_guid,
        'type' => 'user',
        'subtype' => $subtype,
        'limit' => $limit,
        'offset' => $offset
    ));
}

function get_user_friends_of($user_guid, $subtype = ELGG_ENTITIES_ANY_VALUE, $limit = 10,
$offset = 0) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggUser::getFriendsOf()', 1.9);

    return elgg_get_entities_from_relationship(array(
        'relationship' => 'friend',
        'relationship_guid' => $user_guid,
        'inverse_relationship' => true,
        'type' => 'user',
        'subtype' => $subtype,
        'limit' => $limit,
        'offset' => $offset
    ));
}

function user_add_friend($user_guid, $friend_guid) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggUser::addFriend()', 1.9);
    $user_guid = (int) $user_guid;
    $friend_guid = (int) $friend_guid;
    if ($user_guid == $friend_guid) {
        return false;
    }
    if (!$friend = get_entity($friend_guid)) {
        return false;
    }
    if (!$user = get_entity($user_guid)) {
        return false;
    }
    if ((!($user instanceof \ElggUser)) || (!($friend instanceof \ElggUser))) {
        return false;
    }
    return add_entity_relationship($user_guid, "friend", $friend_guid);
}

function user_remove_friend($user_guid, $friend_guid) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggUser::removeFriend()', 1.9);
    $user_guid = (int) $user_guid;
    $friend_guid = (int) $friend_guid;

    // perform cleanup for access lists.
    $collections = get_user_access_collections($user_guid);
    if ($collections) {
        foreach ($collections as $collection) {
            remove_user_from_access_collection($friend_guid, $collection->id);
        }
    }

    return remove_entity_relationship($user_guid, "friend", $friend_guid);
}

function add_site_user($site_guid, $user_guid) {
    elgg_deprecated_notice('add_site_user() is deprecated. Use \ElggEntity::addEntity()', 1.9);
    $site_guid = (int)$site_guid;
    $user_guid = (int)$user_guid;

    return add_entity_relationship($user_guid, "member_of_site", $site_guid);
}

function remove_site_user($site_guid, $user_guid) {
    elgg_deprecated_notice('remove_site_user() is deprecated. Use \ElggEntity::removeEntity()', 1.9);
    $site_guid = (int)$site_guid;
    $user_guid = (int)$user_guid;

    return remove_entity_relationship($user_guid, "member_of_site", $site_guid);
}

function add_site_object($site_guid, $object_guid) {
    elgg_deprecated_notice('add_site_object() is deprecated. Use \ElggEntity::addEntity()', 1.9);
    $site_guid = (int)$site_guid;
    $object_guid = (int)$object_guid;

    return add_entity_relationship($object_guid, "member_of_site", $site_guid);
}

function remove_site_object($site_guid, $object_guid) {
    elgg_deprecated_notice('remove_site_object() is deprecated. Use \ElggEntity::removeEntity()', 1.9);
    $site_guid = (int)$site_guid;
    $object_guid = (int)$object_guid;

    return remove_entity_relationship($object_guid, "member_of_site", $site_guid);
}

function get_site_objects($site_guid, $subtype = "", $limit = 10, $offset = 0) {
    elgg_deprecated_notice('get_site_objects() is deprecated. Use \ElggSite::getEntities()', 1.9);
    $site_guid = (int)$site_guid;
    $limit = (int)$limit;
    $offset = (int)$offset;

    return elgg_get_entities_from_relationship(array(
        'relationship' => 'member_of_site',
        'relationship_guid' => $site_guid,
        'inverse_relationship' => true,
        'type' => 'object',
        'subtype' => $subtype,
        'limit' => $limit,
        'offset' => $offset
    ));
}

function get_object_sites($object_guid, $limit = 10, $offset = 0) {
    elgg_deprecated_notice('get_object_sites() is deprecated. Use \ElggEntity::getSites()', 1.9);
    $object_guid = (int)$object_guid;
    $limit = (int)$limit;
    $offset = (int)$offset;

    return elgg_get_entities_from_relationship(array(
        'relationship' => 'member_of_site',
        'relationship_guid' => $object_guid,
        'type' => 'site',
        'limit' => $limit,
        'offset' => $offset,
    ));
}

function get_user_sites($user_guid, $limit = 10, $offset = 0) {
    elgg_deprecated_notice('get_user_sites() is deprecated. Use \ElggEntity::getSites()', 1.9);
    $user_guid = (int)$user_guid;
    $limit = (int)$limit;
    $offset = (int)$offset;

    return elgg_get_entities_from_relationship(array(
        'site_guids' => ELGG_ENTITIES_ANY_VALUE,
        'relationship' => 'member_of_site',
        'relationship_guid' => $user_guid,
        'inverse_relationship' => false,
        'type' => 'site',
        'limit' => $limit,
        'offset' => $offset,
    ));
}

function can_edit_extender($extender_id, $type, $user_guid = 0) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggExtender::canEdit()', 1.9);

    // Since Elgg 1.0, Elgg has returned false from can_edit_extender()
    // if no user was logged in. This breaks the access override so we add this
    // special check here.
    if (!elgg_check_access_overrides($user_guid)) {
        if (!elgg_is_logged_in()) {
            return false;
        }
    }

    $user_guid = (int)$user_guid;
    $user = get_user($user_guid);
    if (!$user) {
        $user = elgg_get_logged_in_user_entity();
        $user_guid = elgg_get_logged_in_user_guid();
    }

    $functionname = "elgg_get_{$type}_from_id";
    if (is_callable($functionname)) {
        $extender = call_user_func($functionname, $extender_id);
    } else {
        return false;
    }

    if (!($extender instanceof \ElggExtender)) {
        return false;
    }
    /* @var \ElggExtender $extender */

    // If the owner is the specified user, great! They can edit.
    if ($extender->getOwnerGUID() == $user_guid) {
        return true;
    }

    // If the user can edit the entity this is attached to, great! They can edit.
    $entity = $extender->getEntity();
    if ($entity->canEdit($user_guid)) {
        return true;
    }

    // Trigger plugin hook - note that $user may be null
    $params = array('entity' => $entity, 'user' => $user);
    return elgg_trigger_plugin_hook('permissions_check', $type, $params, false);
}

function calculate_tag_size($min, $max, $number_of_tags, $buckets = 6) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    $delta = (($max - $min) / $buckets);
    $thresholds = array();

    for ($n = 1; $n <= $buckets; $n++) {
        $thresholds[$n - 1] = ($min + $n) * $delta;
    }

    // Correction
    if ($thresholds[$buckets - 1] > $max) {
        $thresholds[$buckets - 1] = $max;
    }

    $size = 0;
    for ($n = 0; $n < count($thresholds); $n++) {
        if ($number_of_tags >= $thresholds[$n]) {
            $size = $n;
        }
    }

    return $size;
}

function generate_tag_cloud(array $tags, $buckets = 6) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    $cloud = array();

    $min = 65535;
    $max = 0;

    foreach ($tags as $tag) {
        $cloud[$tag]++;

        if ($cloud[$tag] > $max) {
            $max = $cloud[$tag];
        }

        if ($cloud[$tag] < $min) {
            $min = $cloud[$tag];
        }
    }

    foreach ($cloud as $k => $v) {
        $cloud[$k] = calculate_tag_size($min, $max, $v, $buckets);
    }

    return $cloud;
}

function elgg_invalidate_metadata_cache($action, array $options) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    _elgg_invalidate_metadata_cache($action, $options);
}

global $METASTRINGS_DEADNAME_CACHE;
$METASTRINGS_DEADNAME_CACHE = array();

function get_metastring_id($string, $case_sensitive = TRUE) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use elgg_get_metastring_id()', 1.9);
    return elgg_get_metastring_id($string, $case_sensitive);
}

function add_metastring($string, $case_sensitive = true) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use elgg_get_metastring_id()', 1.9);
    return elgg_get_metastring_id($string, $case_sensitive);
}

function get_metastring($id) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated.', 1.9);
    global $CONFIG, $METASTRINGS_CACHE;

    $id = (int) $id;

    if (isset($METASTRINGS_CACHE[$id])) {
        return $METASTRINGS_CACHE[$id];
    }

    $row = get_data_row("SELECT * from {$CONFIG->dbprefix}metastrings where id='$id' limit 1");
    if ($row) {
        $METASTRINGS_CACHE[$id] = $row->string;
        return $row->string;
    }

    return false;
}

function get_user_friends_objects($user_guid, $subtype = ELGG_ENTITIES_ANY_VALUE, $limit = 10,
    $offset = 0, $timelower = 0, $timeupper = 0) {

    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use elgg_get_entities_from_relationship()', 1.9);
    return elgg_get_entities_from_relationship(array(
        'type' => 'object',
        'subtype' => $subtype,
        'limit' => $limit,
        'offset' => $offset,
        'created_time_lower' => $timelower,
        'created_time_upper' => $timeupper,
        'relationship' => 'friend',
        'relationship_guid' => $user_guid,
        'relationship_join_on' => 'container_guid',
    ));
}

function count_user_friends_objects($user_guid, $subtype = ELGG_ENTITIES_ANY_VALUE,
$timelower = 0, $timeupper = 0) {

    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use elgg_get_entities_from_relationship()', 1.9);
    return elgg_get_entities_from_relationship(array(
        'type' => 'object',
        'subtype' => $subtype,
        'created_time_lower' => $timelower,
        'created_time_upper' => $timeupper,
        'relationship' => 'friend',
        'relationship_guid' => $user_guid,
        'relationship_join_on' => 'container_guid',
        'count' => true,
    ));
}

function list_user_friends_objects($user_guid, $subtype = "", $limit = 10, $full_view = true,
    $listtypetoggle = true, $pagination = true, $timelower = 0, $timeupper = 0) {

    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use elgg_list_entities_from_relationship()', 1.9);
    return elgg_list_entities_from_relationship(array(
        'type' => 'object',
        'subtype' => $subtype,
        'limit' => $limit,
        'created_time_lower' => $timelower,
        'created_time_upper' => $timeupper,
        'full_view' => $full_view,
        'list_type_toggle' => $listtypetoggle,
        'pagination' => $pagination,
        'relationship' => 'friend',
        'relationship_guid' => $user_guid,
        'relationship_join_on' => 'container_guid',
    ));
}

function elgg_geocode_location($location) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. See geolocation plugin on github', 1.9);
    global $CONFIG;

    if (is_array($location)) {
        return false;
    }

    $location = sanitise_string($location);

    // Look for cached version
    $query = "SELECT * from {$CONFIG->dbprefix}geocode_cache WHERE location='$location'";
    $cached_location = get_data_row($query);

    if ($cached_location) {
        return array('lat' => $cached_location->lat, 'long' => $cached_location->long);
    }

    // Trigger geocode event if not cached
    $return = false;
    $return = elgg_trigger_plugin_hook('geocode', 'location', array('location' => $location), $return);

    // If returned, cache and return value
    if (($return) && (is_array($return))) {
        $lat = (float)$return['lat'];
        $long = (float)$return['long'];

        // Put into cache at the end of the page since we don't really care that much
        $query = "INSERT DELAYED INTO {$CONFIG->dbprefix}geocode_cache "
            . " (location, lat, `long`) VALUES ('$location', '{$lat}', '{$long}')"
            . " ON DUPLICATE KEY UPDATE lat='{$lat}', `long`='{$long}'";
        execute_delayed_write_query($query);
    }

    return $return;
}

function elgg_get_entities_from_location(array $options = array()) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. See geolocation plugin on github', 1.9);
    global $CONFIG;

    if (!isset($options['latitude']) || !isset($options['longitude']) ||
        !isset($options['distance'])) {
        return false;
    }

    if (!is_array($options['distance'])) {
        $lat_distance = (float)$options['distance'];
        $long_distance = (float)$options['distance'];
    } else {
        $lat_distance = (float)$options['distance']['latitude'];
        $long_distance = (float)$options['distance']['longitude'];
    }

    $lat = (float)$options['latitude'];
    $long = (float)$options['longitude'];
    $lat_min = $lat - $lat_distance;
    $lat_max = $lat + $lat_distance;
    $long_min = $long - $long_distance;
    $long_max = $long + $long_distance;

    $wheres = array();
    $wheres[] = "lat_name.string='geo:lat'";
    $wheres[] = "lat_value.string >= $lat_min";
    $wheres[] = "lat_value.string <= $lat_max";
    $wheres[] = "lon_name.string='geo:long'";
    $wheres[] = "lon_value.string >= $long_min";
    $wheres[] = "lon_value.string <= $long_max";

    $joins = array();
    $joins[] = "JOIN {$CONFIG->dbprefix}metadata lat on e.guid=lat.entity_guid";
    $joins[] = "JOIN {$CONFIG->dbprefix}metastrings lat_name on lat.name_id=lat_name.id";
    $joins[] = "JOIN {$CONFIG->dbprefix}metastrings lat_value on lat.value_id=lat_value.id";
    $joins[] = "JOIN {$CONFIG->dbprefix}metadata lon on e.guid=lon.entity_guid";
    $joins[] = "JOIN {$CONFIG->dbprefix}metastrings lon_name on lon.name_id=lon_name.id";
    $joins[] = "JOIN {$CONFIG->dbprefix}metastrings lon_value on lon.value_id=lon_value.id";

    // merge wheres to pass to get_entities()
    if (isset($options['wheres']) && !is_array($options['wheres'])) {
        $options['wheres'] = array($options['wheres']);
    } elseif (!isset($options['wheres'])) {
        $options['wheres'] = array();
    }
    $options['wheres'] = array_merge($options['wheres'], $wheres);

    // merge joins to pass to get_entities()
    if (isset($options['joins']) && !is_array($options['joins'])) {
        $options['joins'] = array($options['joins']);
    } elseif (!isset($options['joins'])) {
        $options['joins'] = array();
    }
    $options['joins'] = array_merge($options['joins'], $joins);

    return elgg_get_entities_from_relationship($options);
}

function elgg_list_entities_from_location(array $options = array()) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. See geolocation plugin on github', 1.9);
    return elgg_list_entities($options, 'elgg_get_entities_from_location');
}

// Some distances in degrees (approximate)
// @todo huh? see warning on elgg_get_entities_from_location()
// @deprecated 1.9.0
define("MILE", 0.01515);
define("KILOMETER", 0.00932);

function get_version($humanreadable = false) {
    elgg_deprecated_notice('get_version() has been deprecated by elgg_get_version()', 1.9);
    return elgg_get_version($humanreadable);
}

function sanitise_string_special($string, $extra_escapeable = '') {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated.', 1.9);
    $string = sanitise_string($string);

    for ($n = 0; $n < strlen($extra_escapeable); $n++) {
        $string = str_replace($extra_escapeable[$n], "\\" . $extra_escapeable[$n], $string);
    }

    return $string;
}

function setup_db_connections() {
    elgg_deprecated_notice(__FUNCTION__ . ' is a private function and should not be used.', 1.9);
    _elgg_services()->db->setupConnections();
}

function optimize_table($table) {
    elgg_deprecated_notice(__FUNCTION__ . ' is a private function and should not be used.', 1.9);
    $table = sanitise_string($table);
    return _elgg_services()->db->updateData("OPTIMIZE TABLE $table");
}

function get_db_tables() {
    elgg_deprecated_notice(__FUNCTION__ . ' is a private function and should not be used.', 1.9);
    static $tables;

    if (isset($tables)) {
        return $tables;
    }

    $table_prefix = elgg_get_config('dbprefix');
    $result = get_data("SHOW TABLES LIKE '$table_prefix%'");

    $tables = array();
    if (is_array($result) && !empty($result)) {
        foreach ($result as $row) {
            $row = (array) $row;
            if (is_array($row) && !empty($row)) {
                foreach ($row as $element) {
                    $tables[] = $element;
                }
            }
        }
    }

    return $tables;
}

function get_day_start($day = null, $month = null, $year = null) {
    elgg_deprecated_notice('get_day_start() has been deprecated', 1.9);
    return mktime(0, 0, 0, $month, $day, $year);
}

function get_day_end($day = null, $month = null, $year = null) {
    elgg_deprecated_notice('get_day_end() has been deprecated', 1.9);
    return mktime(23, 59, 59, $month, $day, $year);
}

function get_notable_entities($start_time, $end_time, $type = "", $subtype = "", $owner_guid = 0,
$order_by = "asc", $limit = 10, $offset = 0, $count = false, $site_guid = 0,
$container_guid = null) {
    elgg_deprecated_notice('get_notable_entities() has been deprecated', 1.9);
    global $CONFIG;

    if ($subtype === false || $subtype === null || $subtype === 0) {
        return false;
    }

    $start_time = (int)$start_time;
    $end_time = (int)$end_time;
    $order_by = sanitise_string($order_by);
    $limit = (int)$limit;
    $offset = (int)$offset;
    $site_guid = (int) $site_guid;
    if ($site_guid == 0) {
        $site_guid = $CONFIG->site_guid;
    }

    $where = array();

    if (is_array($type)) {
        $tempwhere = "";
        if (sizeof($type)) {
            foreach ($type as $typekey => $subtypearray) {
                foreach ($subtypearray as $subtypeval) {
                    $typekey = sanitise_string($typekey);
                    if (!empty($subtypeval)) {
                        $subtypeval = (int) get_subtype_id($typekey, $subtypeval);
                    } else {
                        $subtypeval = 0;
                    }
                    if (!empty($tempwhere)) {
                        $tempwhere .= " or ";
                    }
                    $tempwhere .= "(e.type = '{$typekey}' and e.subtype = {$subtypeval})";
                }
            }
        }
        if (!empty($tempwhere)) {
            $where[] = "({$tempwhere})";
        }
    } else {
        $type = sanitise_string($type);
        $subtype = get_subtype_id($type, $subtype);

        if ($type != "") {
            $where[] = "e.type='$type'";
        }

        if ($subtype !== "") {
            $where[] = "e.subtype=$subtype";
        }
    }

    if ($owner_guid != "") {
        if (!is_array($owner_guid)) {
            $owner_array = array($owner_guid);
            $owner_guid = (int) $owner_guid;
            $where[] = "e.owner_guid = '$owner_guid'";
        } else if (sizeof($owner_guid) > 0) {
            $owner_array = array_map('sanitise_int', $owner_guid);
            // Cast every element to the owner_guid array to int
            $owner_guid = implode(",", $owner_guid);
            $where[] = "e.owner_guid in ({$owner_guid})";
        }
        if (is_null($container_guid)) {
            $container_guid = $owner_array;
        }
    }

    if ($site_guid > 0) {
        $where[] = "e.site_guid = {$site_guid}";
    }

    if (!is_null($container_guid)) {
        if (is_array($container_guid)) {
            foreach ($container_guid as $key => $val) {
                $container_guid[$key] = (int) $val;
            }
            $where[] = "e.container_guid in (" . implode(",", $container_guid) . ")";
        } else {
            $container_guid = (int) $container_guid;
            $where[] = "e.container_guid = {$container_guid}";
        }
    }

    // Add the calendar stuff
    $cal_join = "
        JOIN {$CONFIG->dbprefix}metadata cal_start on e.guid=cal_start.entity_guid
        JOIN {$CONFIG->dbprefix}metastrings cal_start_name on cal_start.name_id=cal_start_name.id
        JOIN {$CONFIG->dbprefix}metastrings cal_start_value on cal_start.value_id=cal_start_value.id

        JOIN {$CONFIG->dbprefix}metadata cal_end on e.guid=cal_end.entity_guid
        JOIN {$CONFIG->dbprefix}metastrings cal_end_name on cal_end.name_id=cal_end_name.id
        JOIN {$CONFIG->dbprefix}metastrings cal_end_value on cal_end.value_id=cal_end_value.id
    ";
    $where[] = "cal_start_name.string='calendar_start'";
    $where[] = "cal_start_value.string>=$start_time";
    $where[] = "cal_end_name.string='calendar_end'";
    $where[] = "cal_end_value.string <= $end_time";


    if (!$count) {
        $query = "SELECT e.* from {$CONFIG->dbprefix}entities e $cal_join where ";
    } else {
        $query = "SELECT count(e.guid) as total from {$CONFIG->dbprefix}entities e $cal_join where ";
    }
    foreach ($where as $w) {
        $query .= " $w and ";
    }

    $query .= _elgg_get_access_where_sql();

    if (!$count) {
        $query .= " order by n.calendar_start $order_by";
        // Add order and limit
        if ($limit) {
            $query .= " limit $offset, $limit";
        }
        $dt = get_data($query, "entity_row_to_elggstar");

        return $dt;
    } else {
        $total = get_data_row($query);
        return $total->total;
    }
}

function get_notable_entities_from_metadata($start_time, $end_time, $meta_name, $meta_value = "",
$entity_type = "", $entity_subtype = "", $owner_guid = 0, $limit = 10, $offset = 0, $order_by = "",
$site_guid = 0, $count = false) {
    elgg_deprecated_notice('get_notable_entities_from_metadata() has been deprecated', 1.9);

    global $CONFIG;

    $meta_n = get_metastring_id($meta_name);
    $meta_v = get_metastring_id($meta_value);

    $start_time = (int)$start_time;
    $end_time = (int)$end_time;
    $entity_type = sanitise_string($entity_type);
    $entity_subtype = get_subtype_id($entity_type, $entity_subtype);
    $limit = (int)$limit;
    $offset = (int)$offset;
    if ($order_by == "") {
        $order_by = "e.time_created desc";
    }
    $order_by = sanitise_string($order_by);
    $site_guid = (int) $site_guid;
    if ((is_array($owner_guid) && (count($owner_guid)))) {
        foreach ($owner_guid as $key => $guid) {
            $owner_guid[$key] = (int) $guid;
        }
    } else {
        $owner_guid = (int) $owner_guid;
    }

    if ($site_guid == 0) {
        $site_guid = $CONFIG->site_guid;
    }

    //$access = get_access_list();

    $where = array();

    if ($entity_type != "") {
        $where[] = "e.type='$entity_type'";
    }

    if ($entity_subtype) {
        $where[] = "e.subtype=$entity_subtype";
    }

    if ($meta_name != "") {
        $where[] = "m.name_id='$meta_n'";
    }

    if ($meta_value != "") {
        $where[] = "m.value_id='$meta_v'";
    }

    if ($site_guid > 0) {
        $where[] = "e.site_guid = {$site_guid}";
    }

    if (is_array($owner_guid)) {
        $where[] = "e.container_guid in (" . implode(",", $owner_guid) . ")";
    } else if ($owner_guid > 0) {
        $where[] = "e.container_guid = {$owner_guid}";
    }

    // Add the calendar stuff
    $cal_join = "
        JOIN {$CONFIG->dbprefix}metadata cal_start on e.guid=cal_start.entity_guid
        JOIN {$CONFIG->dbprefix}metastrings cal_start_name on cal_start.name_id=cal_start_name.id
        JOIN {$CONFIG->dbprefix}metastrings cal_start_value on cal_start.value_id=cal_start_value.id

        JOIN {$CONFIG->dbprefix}metadata cal_end on e.guid=cal_end.entity_guid
        JOIN {$CONFIG->dbprefix}metastrings cal_end_name on cal_end.name_id=cal_end_name.id
        JOIN {$CONFIG->dbprefix}metastrings cal_end_value on cal_end.value_id=cal_end_value.id
    ";

    $where[] = "cal_start_name.string='calendar_start'";
    $where[] = "cal_start_value.string>=$start_time";
    $where[] = "cal_end_name.string='calendar_end'";
    $where[] = "cal_end_value.string <= $end_time";

    if (!$count) {
        $query = "SELECT distinct e.* ";
    } else {
        $query = "SELECT count(distinct e.guid) as total ";
    }

    $query .= "from {$CONFIG->dbprefix}entities e"
    . " JOIN {$CONFIG->dbprefix}metadata m on e.guid = m.entity_guid $cal_join where";

    foreach ($where as $w) {
        $query .= " $w and ";
    }

    // Add access controls
    $query .= _elgg_get_access_where_sql(array('table_alias' => 'e'));
    $query .= ' and ' . _elgg_get_access_where_sql(array('table_alias' => "m"));

    if (!$count) {
        // Add order and limit
        $query .= " order by $order_by limit $offset, $limit";
        return get_data($query, "entity_row_to_elggstar");
    } else {
        if ($row = get_data_row($query)) {
            return $row->total;
        }
    }

    return false;
}

function get_noteable_entities_from_relationship($start_time, $end_time, $relationship,
$relationship_guid, $inverse_relationship = false, $type = "", $subtype = "", $owner_guid = 0,
$order_by = "", $limit = 10, $offset = 0, $count = false, $site_guid = 0) {
    elgg_deprecated_notice('get_noteable_entities_from_relationship() has been deprecated', 1.9);

    global $CONFIG;

    $start_time = (int)$start_time;
    $end_time = (int)$end_time;
    $relationship = sanitise_string($relationship);
    $relationship_guid = (int)$relationship_guid;
    $inverse_relationship = (bool)$inverse_relationship;
    $type = sanitise_string($type);
    $subtype = get_subtype_id($type, $subtype);
    $owner_guid = (int)$owner_guid;
    if ($order_by == "") {
        $order_by = "time_created desc";
    }
    $order_by = sanitise_string($order_by);
    $limit = (int)$limit;
    $offset = (int)$offset;
    $site_guid = (int) $site_guid;
    if ($site_guid == 0) {
        $site_guid = $CONFIG->site_guid;
    }

    //$access = get_access_list();

    $where = array();

    if ($relationship != "") {
        $where[] = "r.relationship='$relationship'";
    }
    if ($relationship_guid) {
        $where[] = $inverse_relationship ?
            "r.guid_two='$relationship_guid'" : "r.guid_one='$relationship_guid'";
    }
    if ($type != "") {
        $where[] = "e.type='$type'";
    }
    if ($subtype) {
        $where[] = "e.subtype=$subtype";
    }
    if ($owner_guid != "") {
        $where[] = "e.container_guid='$owner_guid'";
    }
    if ($site_guid > 0) {
        $where[] = "e.site_guid = {$site_guid}";
    }

    // Add the calendar stuff
    $cal_join = "
        JOIN {$CONFIG->dbprefix}metadata cal_start on e.guid=cal_start.entity_guid
        JOIN {$CONFIG->dbprefix}metastrings cal_start_name on cal_start.name_id=cal_start_name.id
        JOIN {$CONFIG->dbprefix}metastrings cal_start_value on cal_start.value_id=cal_start_value.id

        JOIN {$CONFIG->dbprefix}metadata cal_end on e.guid=cal_end.entity_guid
        JOIN {$CONFIG->dbprefix}metastrings cal_end_name on cal_end.name_id=cal_end_name.id
        JOIN {$CONFIG->dbprefix}metastrings cal_end_value on cal_end.value_id=cal_end_value.id
    ";
    $where[] = "cal_start_name.string='calendar_start'";
    $where[] = "cal_start_value.string>=$start_time";
    $where[] = "cal_end_name.string='calendar_end'";
    $where[] = "cal_end_value.string <= $end_time";

    // Select what we're joining based on the options
    $joinon = "e.guid = r.guid_one";
    if (!$inverse_relationship) {
        $joinon = "e.guid = r.guid_two";
    }

    if ($count) {
        $query = "SELECT count(distinct e.guid) as total ";
    } else {
        $query = "SELECT distinct e.* ";
    }
    $query .= " from {$CONFIG->dbprefix}entity_relationships r"
    . " JOIN {$CONFIG->dbprefix}entities e on $joinon $cal_join where ";

    foreach ($where as $w) {
        $query .= " $w and ";
    }
    // Add access controls
    $query .= _elgg_get_access_where_sql();
    if (!$count) {
        $query .= " order by $order_by limit $offset, $limit"; // Add order and limit
        return get_data($query, "entity_row_to_elggstar");
    } else {
        if ($count = get_data_row($query)) {
            return $count->total;
        }
    }
    return false;
}

function get_todays_entities($type = "", $subtype = "", $owner_guid = 0, $order_by = "",
$limit = 10, $offset = 0, $count = false, $site_guid = 0, $container_guid = null) {
    elgg_deprecated_notice('get_todays_entities() has been deprecated', 1.9);

    $day_start = get_day_start();
    $day_end = get_day_end();

    return get_notable_entities($day_start, $day_end, $type, $subtype, $owner_guid, $order_by,
        $limit, $offset, $count, $site_guid, $container_guid);
}

function get_todays_entities_from_metadata($meta_name, $meta_value = "", $entity_type = "",
$entity_subtype = "", $owner_guid = 0, $limit = 10, $offset = 0, $order_by = "", $site_guid = 0,
$count = false) {
    elgg_deprecated_notice('get_todays_entities_from_metadata() has been deprecated', 1.9);

    $day_start = get_day_start();
    $day_end = get_day_end();

    return get_notable_entities_from_metadata($day_start, $day_end, $meta_name, $meta_value,
        $entity_type, $entity_subtype, $owner_guid, $limit, $offset, $order_by, $site_guid, $count);
}

function get_todays_entities_from_relationship($relationship, $relationship_guid,
$inverse_relationship = false, $type = "", $subtype = "", $owner_guid = 0,
$order_by = "", $limit = 10, $offset = 0, $count = false, $site_guid = 0) {
    elgg_deprecated_notice('get_todays_entities_from_relationship() has been deprecated', 1.9);

    $day_start = get_day_start();
    $day_end = get_day_end();

    return get_notable_entities_from_relationship($day_start, $day_end, $relationship,
        $relationship_guid, $inverse_relationship, $type, $subtype, $owner_guid, $order_by,
        $limit, $offset, $count, $site_guid);
}

function list_notable_entities($start_time, $end_time, $type= "", $subtype = "", $owner_guid = 0,
$limit = 10, $fullview = true, $listtypetoggle = false, $navigation = true) {
    elgg_deprecated_notice('list_notable_entities() has been deprecated', 1.9);

    $offset = (int) get_input('offset');
    $count = get_notable_entities($start_time, $end_time, $type, $subtype,
        $owner_guid, "", $limit, $offset, true);

    $entities = get_notable_entities($start_time, $end_time, $type, $subtype,
        $owner_guid, "", $limit, $offset);

    return elgg_view_entity_list($entities, $count, $offset, $limit,
        $fullview, $listtypetoggle, $navigation);
}

function list_todays_entities($type= "", $subtype = "", $owner_guid = 0, $limit = 10,
$fullview = true, $listtypetoggle = false, $navigation = true) {
    elgg_deprecated_notice('list_todays_entities() has been deprecated', 1.9);

    $day_start = get_day_start();
    $day_end = get_day_end();

    return list_notable_entities($day_start, $day_end, $type, $subtype, $owner_guid, $limit,
        $fullview, $listtypetoggle, $navigation);
}

function elgg_regenerate_simplecache($viewtype = NULL) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated by elgg_invalidate_simplecache()', 1.9);
    elgg_invalidate_simplecache();
}

function elgg_get_filepath_cache() {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated by elgg_get_system_cache()', 1.9);
    return elgg_get_system_cache();
}
function elgg_filepath_cache_reset() {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated by elgg_reset_system_cache()', 1.9);
    elgg_reset_system_cache();
}
function elgg_filepath_cache_save($type, $data) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated by elgg_save_system_cache()', 1.9);
    return elgg_save_system_cache($type, $data);
}
function elgg_filepath_cache_load($type) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated by elgg_load_system_cache()', 1.9);
    return elgg_load_system_cache($type);
}
function elgg_enable_filepath_cache() {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated by elgg_enable_system_cache()', 1.9);
    elgg_enable_system_cache();
}
function elgg_disable_filepath_cache() {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated by elgg_disable_system_cache()', 1.9);
    elgg_disable_system_cache();
}

function unregister_entity_type($type, $subtype) {
    elgg_deprecated_notice("unregister_entity_type() was deprecated by elgg_unregister_entity_type()", 1.9);
    return elgg_unregister_entity_type($type, $subtype);
}

function already_attached($guid_one, $guid_two) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    if ($attached = check_entity_relationship($guid_one, "attached", $guid_two)) {
        return true;
    } else {
        return false;
    }
}

function get_attachments($guid, $type = "") {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    $options = array(
                    'relationship' => 'attached',
                    'relationship_guid' => $guid,
                    'inverse_relationship' => false,
                    'types' => $type,
                    'subtypes' => '',
                    'owner_guid' => 0,
                    'order_by' => 'time_created desc',
                    'limit' => 10,
                    'offset' => 0,
                    'count' => false,
                    'site_guid' => 0
                );
    $attached = elgg_get_entities_from_relationship($options);
    return $attached;
}

function remove_attachment($guid_one, $guid_two) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    if (already_attached($guid_one, $guid_two)) {
        remove_entity_relationship($guid_one, "attached", $guid_two);
    }
}

function make_attachment($guid_one, $guid_two) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    if (!(already_attached($guid_one, $guid_two))) {
        if (add_entity_relationship($guid_one, "attached", $guid_two)) {
            return true;
        }
    }
}

function get_entity_url($entity_guid) {
    elgg_deprecated_notice('get_entity_url has been deprecated in favor of \ElggEntity::getURL', '1.9');
    if ($entity = get_entity($entity_guid)) {
        return $entity->getURL();
    }

    return false;
}

function delete_entity($guid, $recursive = true) {
    elgg_deprecated_notice('delete_entity has been deprecated in favor of \ElggEntity::delete', '1.9');
    $guid = (int)$guid;
    if ($entity = get_entity($guid)) {
        return $entity->delete($recursive);
    }
    return false;
}

function enable_entity($guid, $recursive = true) {
    elgg_deprecated_notice('enable_entity has been deprecated in favor of elgg_enable_entity', '1.9');
    
    $guid = (int)$guid;

    // Override access only visible entities
    $old_access_status = access_get_show_hidden_status();
    access_show_hidden_entities(true);

    $result = false;
    if ($entity = get_entity($guid)) {
        $result = $entity->enable($recursive);
    }

    access_show_hidden_entities($old_access_status);
    return $result;
}

function can_edit_entity_metadata($entity_guid, $user_guid = 0, $metadata = null) {
    elgg_deprecated_notice('can_edit_entity_metadata has been deprecated in favor of \ElggEntity::canEditMetadata', '1.9');
    if ($entity = get_entity($entity_guid)) {
        return $entity->canEditMetadata($metadata, $user_guid);
    } else {
        return false;
    }
}

function disable_entity($guid, $reason = "", $recursive = true) {
    elgg_deprecated_notice('disable_entity was deprecated in favor of \ElggEntity::disable', '1.9');
    
    if ($entity = get_entity($guid)) {
        return $entity->disable($reason, $recursive);
    }
    
    return false;
}

function can_edit_entity($entity_guid, $user_guid = 0) {
    elgg_deprecated_notice('can_edit_entity was deprecated in favor of \ElggEntity::canEdit', '1.9');
    if ($entity = get_entity($entity_guid)) {
        return $entity->canEdit($user_guid);
    }
    
    return false;
}

function join_group($group_guid, $user_guid) {
    elgg_deprecated_notice('join_group was deprecated in favor of \ElggGroup::join', '1.9');
    
    $group = get_entity($group_guid);
    $user = get_entity($user_guid);
    
    if ($group instanceof \ElggGroup && $user instanceof \ElggUser) {
        return $group->join($user);
    }
    
    return false;
}

function leave_group($group_guid, $user_guid) {
    elgg_deprecated_notice('leave_group was deprecated in favor of \ElggGroup::leave', '1.9');
    $group = get_entity($group_guid);
    $user = get_entity($user_guid);
    
    if ($group instanceof \ElggGroup && $user instanceof \ElggUser) {
        return $group->leave($user);
    }

    return false;
}

function autop($string) {
    elgg_deprecated_notice('autop has been deprecated in favor of elgg_autop', '1.9');
    return elgg_autop($string);
}

function expose_function($method, $function, array $parameters = NULL, $description = "",
        $call_method = "GET", $require_api_auth = false, $require_user_auth = false) {
    elgg_deprecated_notice("expose_function() deprecated for the function elgg_ws_expose_function() in web_services plugin", 1.9);
    if (!elgg_admin_notice_exists("elgg:ws:1.9")) {
        elgg_add_admin_notice("elgg:ws:1.9", "The web services are now a plugin in Elgg 1.9.
            You must enable this plugin and update your web services to use elgg_ws_expose_function().");
    }

    if (function_exists("elgg_ws_expose_function")) {
        return elgg_ws_expose_function($method, $function, $parameters, $description, $call_method, $require_api_auth, $require_user_auth);
    }
}

function unexpose_function($method) {
    elgg_deprecated_notice("unexpose_function() deprecated for the function elgg_ws_unexpose_function() in web_services plugin", 1.9);
    if (function_exists("elgg_ws_unexpose_function")) {
        return elgg_ws_unexpose_function($method);
    }
}

function register_service_handler($handler, $function) {
    elgg_deprecated_notice("register_service_handler() deprecated for the function elgg_ws_register_service_handler() in web_services plugin", 1.9);
    if (function_exists("elgg_ws_register_service_handler")) {
        return elgg_ws_register_service_handler($handler, $function);
    }
}

function unregister_service_handler($handler) {
    elgg_deprecated_notice("unregister_service_handler() deprecated for the function elgg_ws_unregister_service_handler() in web_services plugin", 1.9);
    if (function_exists("elgg_ws_unregister_service_handler")) {
        return elgg_ws_unregister_service_handler($handler);
    }
}

function create_site_entity($guid, $name, $description, $url) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggSite constructor', 1.9);
    global $CONFIG;

    $guid = (int)$guid;
    $name = sanitise_string($name);
    $description = sanitise_string($description);
    $url = sanitise_string($url);

    $row = get_entity_as_row($guid);

    if ($row) {
        // Exists and you have access to it
        $query = "SELECT guid from {$CONFIG->dbprefix}sites_entity where guid = {$guid}";
        if ($exists = get_data_row($query)) {
            $query = "UPDATE {$CONFIG->dbprefix}sites_entity
                set name='$name', description='$description', url='$url' where guid=$guid";
            $result = update_data($query);

            if ($result != false) {
                // Update succeeded, continue
                $entity = get_entity($guid);
                if (elgg_trigger_event('update', $entity->type, $entity)) {
                    return $guid;
                } else {
                    $entity->delete();
                    //delete_entity($guid);
                }
            }
        } else {
            // Update failed, attempt an insert.
            $query = "INSERT into {$CONFIG->dbprefix}sites_entity
                (guid, name, description, url) values ($guid, '$name', '$description', '$url')";
            $result = insert_data($query);

            if ($result !== false) {
                $entity = get_entity($guid);
                if (elgg_trigger_event('create', $entity->type, $entity)) {
                    return $guid;
                } else {
                    $entity->delete();
                    //delete_entity($guid);
                }
            }
        }
    }

    return false;
}

function create_group_entity($guid, $name, $description) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggGroup constructor', 1.9);
    global $CONFIG;

    $guid = (int)$guid;
    $name = sanitise_string($name);
    $description = sanitise_string($description);

    $row = get_entity_as_row($guid);

    if ($row) {
        // Exists and you have access to it
        $exists = get_data_row("SELECT guid from {$CONFIG->dbprefix}groups_entity WHERE guid = {$guid}");
        if ($exists) {
            $query = "UPDATE {$CONFIG->dbprefix}groups_entity set"
                . " name='$name', description='$description' where guid=$guid";
            $result = update_data($query);
            if ($result != false) {
                // Update succeeded, continue
                $entity = get_entity($guid);
                if (elgg_trigger_event('update', $entity->type, $entity)) {
                    return $guid;
                } else {
                    $entity->delete();
                }
            }
        } else {
            // Update failed, attempt an insert.
            $query = "INSERT into {$CONFIG->dbprefix}groups_entity"
                . " (guid, name, description) values ($guid, '$name', '$description')";

            $result = insert_data($query);
            if ($result !== false) {
                $entity = get_entity($guid);
                if (elgg_trigger_event('create', $entity->type, $entity)) {
                    return $guid;
                } else {
                    $entity->delete();
                }
            }
        }
    }

    return false;
}

function create_user_entity($guid, $name, $username, $password, $salt, $email, $language, $code) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggUser constructor', 1.9);
    global $CONFIG;

    $guid = (int)$guid;
    $name = sanitise_string($name);
    $username = sanitise_string($username);
    $password = sanitise_string($password);
    $salt = sanitise_string($salt);
    $email = sanitise_string($email);
    $language = sanitise_string($language);

    $row = get_entity_as_row($guid);
    if ($row) {
        // Exists and you have access to it
        $query = "SELECT guid from {$CONFIG->dbprefix}users_entity where guid = {$guid}";
        if ($exists = get_data_row($query)) {
            $query = "UPDATE {$CONFIG->dbprefix}users_entity
                SET name='$name', username='$username', password='$password', salt='$salt',
                email='$email', language='$language'
                WHERE guid = $guid";

            $result = update_data($query);
            if ($result != false) {
                // Update succeeded, continue
                $entity = get_entity($guid);
                if (elgg_trigger_event('update', $entity->type, $entity)) {
                    return $guid;
                } else {
                    $entity->delete();
                }
            }
        } else {
            // Exists query failed, attempt an insert.
            $query = "INSERT into {$CONFIG->dbprefix}users_entity
                (guid, name, username, password, salt, email, language)
                values ($guid, '$name', '$username', '$password', '$salt', '$email', '$language')";

            $result = insert_data($query);
            if ($result !== false) {
                $entity = get_entity($guid);
                if (elgg_trigger_event('create', $entity->type, $entity)) {
                    return $guid;
                } else {
                    $entity->delete();
                }
            }
        }
    }

    return false;
}

function create_object_entity($guid, $title, $description) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggObject constructor', 1.9);
    global $CONFIG;

    $guid = (int)$guid;
    $title = sanitise_string($title);
    $description = sanitise_string($description);

    $row = get_entity_as_row($guid);

    if ($row) {
        // Core entities row exists and we have access to it
        $query = "SELECT guid from {$CONFIG->dbprefix}objects_entity where guid = {$guid}";
        if ($exists = get_data_row($query)) {
            $query = "UPDATE {$CONFIG->dbprefix}objects_entity
                set title='$title', description='$description' where guid=$guid";

            $result = update_data($query);
            if ($result != false) {
                // Update succeeded, continue
                $entity = get_entity($guid);
                elgg_trigger_event('update', $entity->type, $entity);
                return $guid;
            }
        } else {
            // Update failed, attempt an insert.
            $query = "INSERT into {$CONFIG->dbprefix}objects_entity
                (guid, title, description) values ($guid, '$title','$description')";

            $result = insert_data($query);
            if ($result !== false) {
                $entity = get_entity($guid);
                if (elgg_trigger_event('create', $entity->type, $entity)) {
                    return $guid;
                } else {
                    $entity->delete();
                }
            }
        }
    }

    return false;
}

function ODD_factory (XmlElement $element) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    $name = $element->name;
    $odd = false;

    switch ($name) {
        case 'entity' :
            $odd = new ODDEntity("", "", "");
            break;
        case 'metadata' :
            $odd = new ODDMetaData("", "", "", "");
            break;
        case 'relationship' :
            $odd = new ODDRelationship("", "", "");
            break;
    }

    // Now populate values
    if ($odd) {
        // Attributes
        foreach ($element->attributes as $k => $v) {
            $odd->setAttribute($k, $v);
        }

        // Body
        $body = $element->content;
        $a = stripos($body, "<![CDATA");
        $b = strripos($body, "]]>");
        if (($body) && ($a !== false) && ($b !== false)) {
            $body = substr($body, $a + 8, $b - ($a + 8));
        }

        $odd->setBody($body);
    }

    return $odd;
}

function oddentity_to_elggentity(ODDEntity $element) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    $class = $element->getAttribute('class');
    $subclass = $element->getAttribute('subclass');

    // See if we already have imported this uuid
    $tmp = get_entity_from_uuid($element->getAttribute('uuid'));

    if (!$tmp) {
        // Construct new class with owner from session
        $classname = get_subtype_class($class, $subclass);
        if ($classname) {
            if (class_exists($classname)) {
                $tmp = new $classname();

                if (!($tmp instanceof \ElggEntity)) {
                    $msg = $classname . " is not a " . get_class() . ".";
                    throw new \ClassException($msg);
                }
            } else {
                error_log("Class '" . $classname . "' was not found, missing plugin?");
            }
        } else {
            switch ($class) {
                case 'object' :
                    $tmp = new \ElggObject();
                    break;
                case 'user' :
                    $tmp = new \ElggUser();
                    break;
                case 'group' :
                    $tmp = new \ElggGroup();
                    break;
                case 'site' :
                    $tmp = new \ElggSite();
                    break;
                default:
                    $msg = "Type " . $class . " is not supported. This indicates an error in your installation, most likely caused by an incomplete upgrade.";
                    throw new \InstallationException($msg);
            }
        }
    }

    if ($tmp) {
        if (!$tmp->import($element)) {
            $msg = "Could not import element " . $element->getAttribute('uuid');
            throw new \ImportException($msg);
        }

        return $tmp;
    }

    return NULL;
}

function ODD_Import($xml) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    // Parse XML to an array
    $elements = xml_to_object($xml);

    // Sanity check 1, was this actually XML?
    if ((!$elements) || (!$elements->children)) {
        return false;
    }

    // Create ODDDocument
    $document = new ODDDocument();

    // Itterate through array of elements and construct ODD document
    $cnt = 0;

    foreach ($elements->children as $child) {
        $odd = ODD_factory($child);

        if ($odd) {
            $document->addElement($odd);
            $cnt++;
        }
    }

    // Check that we actually found something
    if ($cnt == 0) {
        return false;
    }

    return $document;
}

function ODD_Export(ODDDocument $document) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    return "$document";
}

function get_uuid_from_object($object) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    if ($object instanceof \ElggEntity) {
        return guid_to_uuid($object->guid);
    } else if ($object instanceof \ElggExtender) {
        $type = $object->type;
        if ($type == 'volatile') {
            $uuid = guid_to_uuid($object->entity_guid) . $type . "/{$object->name}/";
        } else {
            $uuid = guid_to_uuid($object->entity_guid) . $type . "/{$object->id}/";
        }

        return $uuid;
    } else if ($object instanceof \ElggRelationship) {
        return guid_to_uuid($object->guid_one) . "relationship/{$object->id}/";
    }

    return false;
}

function guid_to_uuid($guid) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    return elgg_get_site_url()  . "export/opendd/$guid/";
}

function is_uuid_this_domain($uuid) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    if (strpos($uuid, elgg_get_site_url()) === 0) {
        return true;
    }

    return false;
}

function get_entity_from_uuid($uuid) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    $uuid = sanitise_string($uuid);

    $options = array('metadata_name' => 'import_uuid', 'metadata_value' => $uuid);
    $entities = elgg_get_entities_from_metadata($options);

    if ($entities) {
        return $entities[0];
    }

    return false;
}

function add_uuid_to_guid($guid, $uuid) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    $guid = (int)$guid;
    $uuid = sanitise_string($uuid);

    $result = create_metadata($guid, "import_uuid", $uuid);
    return (bool)$result;
}


$IMPORTED_DATA = array();
$IMPORTED_OBJECT_COUNTER = 0;

function _process_element(ODD $odd) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    global $IMPORTED_DATA, $IMPORTED_OBJECT_COUNTER;

    // See if anyone handles this element, return true if it is.
    $to_be_serialised = null;
    if ($odd) {
        $handled = elgg_trigger_plugin_hook("import", "all", array("element" => $odd), $to_be_serialised);

        // If not, then see if any of its sub elements are handled
        if ($handled) {
            // Increment validation counter
            $IMPORTED_OBJECT_COUNTER ++;
            // Return the constructed object
            $IMPORTED_DATA[] = $handled;

            return true;
        }
    }

    return false;
}

function exportAsArray($guid) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    $guid = (int)$guid;

    // Trigger a hook to
    $to_be_serialised = elgg_trigger_plugin_hook("export", "all", array("guid" => $guid), array());

    // Sanity check
    if ((!is_array($to_be_serialised)) || (count($to_be_serialised) == 0)) {
        throw new \ExportException("No such entity GUID:" . $guid);
    }

    return $to_be_serialised;
}

function export($guid) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    $odd = new ODDDocument(exportAsArray($guid));

    return ODD_Export($odd);
}

function import($xml) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated', 1.9);
    global $IMPORTED_DATA, $IMPORTED_OBJECT_COUNTER;

    $IMPORTED_DATA = array();
    $IMPORTED_OBJECT_COUNTER = 0;

    $document = ODD_Import($xml);
    if (!$document) {
        throw new \ImportException("No OpenDD elements found in import data, import failed.");
    }

    foreach ($document as $element) {
        _process_element($element);
    }

    if ($IMPORTED_OBJECT_COUNTER != count($IMPORTED_DATA)) {
        throw new \ImportException("Not all elements were imported.");
    }

    return true;
}

function _export_init() {
    global $CONFIG;

    elgg_register_action("import/opendd");
}

function elgg_get_views($dir, $base) {
    $return = array();
    if (file_exists($dir) && is_dir($dir)) {
        if ($handle = opendir($dir)) {
            while ($view = readdir($handle)) {
                if (!in_array($view, array('.', '..', '.svn', 'CVS'))) {
                    if (is_dir($dir . '/' . $view)) {
                        if ($val = elgg_get_views($dir . '/' . $view, $base . '/' . $view)) {
                            $return = array_merge($return, $val);
                        }
                    } else {
                        $view = str_replace('.php', '', $view);
                        $return[] = $base . '/' . $view;
                    }
                }
            }
        }
    }

    return $return;
}

function elgg_view_tree($view_root, $viewtype = "") {
    global $CONFIG;
    static $treecache = array();

    // Get viewtype
    if (!$viewtype) {
        $viewtype = elgg_get_viewtype();
    }

    // A little light internal caching
    if (!empty($treecache[$view_root])) {
        return $treecache[$view_root];
    }

    // Examine $CONFIG->views->locations
    if (isset($CONFIG->views->locations[$viewtype])) {
        foreach ($CONFIG->views->locations[$viewtype] as $view => $path) {
            $pos = strpos($view, $view_root);
            if ($pos === 0) {
                $treecache[$view_root][] = $view;
            }
        }
    }

    // Now examine core
    $location = _elgg_services()->views->view_path;
    $viewtype = elgg_get_viewtype();
    $root = $location . $viewtype . '/' . $view_root;

    if (file_exists($root) && is_dir($root)) {
        $val = elgg_get_views($root, $view_root);
        if (!is_array($treecache[$view_root])) {
            $treecache[$view_root] = array();
        }
        $treecache[$view_root] = array_merge($treecache[$view_root], $val);
    }

    return $treecache[$view_root];
}

function add_to_river($view, $action_type, $subject_guid, $object_guid, $access_id = "",
$posted = 0, $annotation_id = 0, $target_guid = 0) {
    elgg_deprecated_notice('add_to_river was deprecated in favor of elgg_create_river_item', '1.9');

    // Make sure old parameters are passed in correct format
    $access_id = ($access_id == '') ? null : $access_id;
    $posted = ($posted == 0) ? null : $posted;

    return elgg_create_river_item(array(
        'view' => $view,
        'action_type' => $action_type,
        'subject_guid' => $subject_guid,
        'object_guid' => $object_guid,
        'target_guid' => $target_guid,
        'access_id' => $access_id,
        'posted' => $posted,
        'annotation_id' => $annotation_id,
    ));
}

function serialise_object_to_xml($data, $name = "", $n = 0) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated.', 1.9);

    $classname = ($name == "" ? get_class($data) : $name);

    $vars = method_exists($data, "export") ? get_object_vars($data->export()) : get_object_vars($data);

    $output = "";

    if (($n == 0) || ( is_object($data) && !($data instanceof \stdClass))) {
        $output = "<$classname>";
    }

    foreach ($vars as $key => $value) {
        $output .= "<$key type=\"" . gettype($value) . "\">";

        if (is_object($value)) {
            $output .= serialise_object_to_xml($value, $key, $n + 1);
        } else if (is_array($value)) {
            $output .= serialise_array_to_xml($value, $n + 1);
        } else if (gettype($value) == "boolean") {
            $output .= $value ? "true" : "false";
        } else {
            $output .= htmlspecialchars($value, ENT_NOQUOTES, 'UTF-8');
        }

        $output .= "</$key>\n";
    }

    if (($n == 0) || (is_object($data) && !($data instanceof \stdClass))) {
        $output .= "</$classname>\n";
    }

    return $output;
}

function serialise_array_to_xml(array $data, $n = 0) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated.', 1.9);

    $output = "";

    if ($n == 0) {
        $output = "<array>\n";
    }

    foreach ($data as $key => $value) {
        $item = "array_item";

        if (is_numeric($key)) {
            $output .= "<$item name=\"$key\" type=\"" . gettype($value) . "\">";
        } else {
            $item = $key;
            $output .= "<$item type=\"" . gettype($value) . "\">";
        }

        if (is_object($value)) {
            $output .= serialise_object_to_xml($value, "", $n + 1);
        } else if (is_array($value)) {
            $output .= serialise_array_to_xml($value, $n + 1);
        } else if (gettype($value) == "boolean") {
            $output .= $value ? "true" : "false";
        } else {
            $output .= htmlspecialchars($value, ENT_NOQUOTES, 'UTF-8');
        }

        $output .= "</$item>\n";
    }

    if ($n == 0) {
        $output .= "</array>\n";
    }

    return $output;
}

function xml_to_object($xml) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated by \ElggXMLElement', 1.9);
    return new \ElggXMLElement($xml);
}

function get_site_domain($guid) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated. Use \ElggSite::getDomain()', 1.9);
    $guid = (int)$guid;

    $site = get_entity($guid);
    if ($site instanceof \ElggSite) {
        $breakdown = parse_url($site->url);
        return $breakdown['host'];
    }

    return false;
}

function register_notification_object($entity_type, $object_subtype, $language_name) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated by elgg_register_notification_event()', 1.9);

    elgg_register_notification_event($entity_type, $object_subtype);
    _elgg_services()->notifications->setDeprecatedNotificationSubject($entity_type, $object_subtype, $language_name);
}

function register_notification_interest($user_guid, $author_guid) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated by elgg_add_subscription()', 1.9);
    return add_entity_relationship($user_guid, 'notify', $author_guid);
}

function remove_notification_interest($user_guid, $author_guid) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated by elgg_remove_subscription()', 1.9);
    return remove_entity_relationship($user_guid, 'notify', $author_guid);
}

function object_notifications($event, $object_type, $object) {
    throw new \BadFunctionCallException("object_notifications is a private function and should not be called directly");
}

function register_notification_handler($method, $handler, $params = NULL) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated by elgg_register_notification_method()', 1.9);
    elgg_register_notification_method($method);
    _elgg_services()->notifications->registerDeprecatedHandler($method, $handler);
}

function unregister_notification_handler($method) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated by elgg_unregister_notification_method()', 1.9);
    elgg_unregister_notification_method($method);
}

function import_entity_plugin_hook($hook, $entity_type, $returnvalue, $params) {
    $element = $params['element'];

    $tmp = null;

    if ($element instanceof ODDEntity) {
        $tmp = oddentity_to_elggentity($element);

        if ($tmp) {
            // Make sure its saved
            if (!$tmp->save()) {
                $msg = "There was a problem saving " . $element->getAttribute('uuid');
                throw new \ImportException($msg);
            }

            // Belts and braces
            if (!$tmp->guid) {
                throw new \ImportException("New entity created but has no GUID, this should not happen.");
            }

            // We have saved, so now tag
            add_uuid_to_guid($tmp->guid, $element->getAttribute('uuid'));

            return $tmp;
        }
    }
}

function export_entity_plugin_hook($hook, $entity_type, $returnvalue, $params) {
    // Sanity check values
    if ((!is_array($params)) && (!isset($params['guid']))) {
        throw new \InvalidParameterException("GUID has not been specified during export, this should never happen.");
    }

    if (!is_array($returnvalue)) {
        throw new \InvalidParameterException("Entity serialisation function passed a non-array returnvalue parameter");
    }

    $guid = (int)$params['guid'];

    // Get the entity
    $entity = get_entity($guid);
    if (!($entity instanceof \ElggEntity)) {
        $msg = "GUID:" . $guid . " is not a valid " . get_class();
        throw new \InvalidClassException($msg);
    }

    $export = $entity->export();

    if (is_array($export)) {
        foreach ($export as $e) {
            $returnvalue[] = $e;
        }
    } else {
        $returnvalue[] = $export;
    }

    return $returnvalue;
}

function volatile_data_export_plugin_hook($hook, $entity_type, $returnvalue, $params) {
    $guid = (int)$params['guid'];
    $variable_name = sanitise_string($params['varname']);

    if (($hook == 'volatile') && ($entity_type == 'metadata')) {
        if (($guid) && ($variable_name)) {
            switch ($variable_name) {
                case 'renderedentity' :
                    elgg_set_viewtype('default');
                    $view = elgg_view_entity(get_entity($guid));
                    elgg_set_viewtype();

                    $tmp = new \ElggMetadata();
                    $tmp->type = 'volatile';
                    $tmp->name = 'renderedentity';
                    $tmp->value = $view;
                    $tmp->entity_guid = $guid;

                    return $tmp;

                break;
            }
        }
    }
}

function export_annotation_plugin_hook($hook, $type, $returnvalue, $params) {
    // Sanity check values
    if ((!is_array($params)) && (!isset($params['guid']))) {
        throw new \InvalidParameterException("GUID has not been specified during export, this should never happen.");
    }

    if (!is_array($returnvalue)) {
        throw new \InvalidParameterException("Entity serialization function passed a non-array returnvalue parameter");
    }

    $guid = (int)$params['guid'];
    $options = array('guid' => $guid, 'limit' => 0);
    if (isset($params['name'])) {
        $options['annotation_name'] = $params['name'];
    }

    $result = elgg_get_annotations($options);

    if ($result) {
        foreach ($result as $r) {
            $returnvalue[] = $r->export();
        }
    }

    return $returnvalue;
}

function import_extender_plugin_hook($hook, $entity_type, $returnvalue, $params) {
    $element = $params['element'];

    $tmp = NULL;

    if ($element instanceof ODDMetaData) {
        /* @var ODDMetaData $element */
        // Recall entity
        $entity_uuid = $element->getAttribute('entity_uuid');
        $entity = get_entity_from_uuid($entity_uuid);
        if (!$entity) {
            throw new \ImportException("Entity '" . $entity_uuid . "' could not be found.");
        }

        oddmetadata_to_elggextender($entity, $element);

        // Save
        if (!$entity->save()) {
            $attr_name = $element->getAttribute('name');
            $msg = "There was a problem updating '" . $attr_name . "' on entity '" . $entity_uuid . "'";
            throw new \ImportException($msg);
        }

        return true;
    }
}

function oddmetadata_to_elggextender(\ElggEntity $entity, ODDMetaData $element) {
    // Get the type of extender (metadata, type, attribute etc)
    $type = $element->getAttribute('type');
    $attr_name = $element->getAttribute('name');
    $attr_val = $element->getBody();

    switch ($type) {
        // Ignore volatile items
        case 'volatile' :
            break;
        case 'annotation' :
            $entity->annotate($attr_name, $attr_val);
            break;
        case 'metadata' :
            $entity->setMetadata($attr_name, $attr_val, "", true);
            break;
        default : // Anything else assume attribute
            $entity->set($attr_name, $attr_val);
    }

    // Set time if appropriate
    $attr_time = $element->getAttribute('published');
    if ($attr_time) {
        $entity->set('time_updated', $attr_time);
    }

    return true;
}

function export_metadata_plugin_hook($hook, $entity_type, $returnvalue, $params) {
    // Sanity check values
    if ((!is_array($params)) && (!isset($params['guid']))) {
        throw new \InvalidParameterException("GUID has not been specified during export, this should never happen.");
    }

    if (!is_array($returnvalue)) {
        throw new \InvalidParameterException("Entity serialisation function passed a non-array returnvalue parameter");
    }

    $result = elgg_get_metadata(array(
        'guid' => (int)$params['guid'],
        'limit' => 0,
    ));

    if ($result) {
        /* @var \ElggMetadata[] $result */
        foreach ($result as $r) {
            $returnvalue[] = $r->export();
        }
    }

    return $returnvalue;
}

function export_relationship_plugin_hook($hook, $entity_type, $returnvalue, $params) {
    // Sanity check values
    if ((!is_array($params)) && (!isset($params['guid']))) {
        throw new \InvalidParameterException("GUID has not been specified during export, this should never happen.");
    }

    if (!is_array($returnvalue)) {
        throw new \InvalidParameterException("Entity serialisation function passed a non-array returnvalue parameter");
    }

    $guid = (int)$params['guid'];

    $result = get_entity_relationships($guid);

    if ($result) {
        foreach ($result as $r) {
            $returnvalue[] = $r->export();
        }
    }

    return $returnvalue;
}

function import_relationship_plugin_hook($hook, $entity_type, $returnvalue, $params) {
    $element = $params['element'];

    $tmp = NULL;

    if ($element instanceof ODDRelationship) {
        $tmp = new \ElggRelationship();
        $tmp->import($element);

        return $tmp;
    }
    return $tmp;
}

function get_access_sql_suffix($table_prefix = '', $owner = null) {
    elgg_deprecated_notice(__FUNCTION__ . ' is deprecated by _elgg_get_access_where_sql()', 1.9);
    return _elgg_get_access_where_sql(array(
        'table_alias' => $table_prefix,
        'user_guid' => (int)$owner,
    ));
}

function elgg_get_calling_plugin_id($mainfilename = false) {
    elgg_deprecated_notice('elgg_get_calling_plugin_id() is deprecated', 1.9);
    if (!$mainfilename) {
        if ($backtrace = debug_backtrace()) {
            foreach ($backtrace as $step) {
                $file = $step['file'];
                $file = str_replace("\\", "/", $file);
                $file = str_replace("//", "/", $file);
                if (preg_match("/mod\/([a-zA-Z0-9\-\_]*)\/start\.php$/", $file, $matches)) {
                    return $matches[1];
                }
            }
        }
    } else {
        //@todo this is a hack -- plugins do not have to match their page handler names!
        if ($handler = get_input('handler', false)) {
            return $handler;
        } else {
            $file = $_SERVER["SCRIPT_NAME"];
            $file = str_replace("\\", "/", $file);
            $file = str_replace("//", "/", $file);
            if (preg_match("/mod\/([a-zA-Z0-9\-\_]*)\//", $file, $matches)) {
                return $matches[1];
            }
        }
    }
    return false;
}

function elgg_get_calling_plugin_entity() {
    elgg_deprecated_notice("elgg_get_calling_plugin_entity() is deprecated.", 1.9);
    $plugin_id = elgg_get_calling_plugin_id();

    if ($plugin_id) {
        return elgg_get_plugin_from_id($plugin_id);
    }

    return false;
}

return function(\Elgg\EventsService $events, \Elgg\HooksRegistrationService $hooks) {
    // Register a startup event
    $events->registerHandler('init', 'system', '_export_init', 100);

    $hooks->registerHandler("import", "all", "import_entity_plugin_hook", 0);
    $hooks->registerHandler("import", "all", "import_extender_plugin_hook", 2);
    $hooks->registerHandler("import", "all", "import_relationship_plugin_hook", 3);

    $hooks->registerHandler("export", "all", "export_entity_plugin_hook", 0);
    $hooks->registerHandler("export", "all", "export_annotation_plugin_hook", 2);
    $hooks->registerHandler("export", "all", "export_metadata_plugin_hook", 2);
    $hooks->registerHandler("export", "all", "export_relationship_plugin_hook", 3);

    $hooks->registerHandler('volatile', 'metadata', 'volatile_data_export_plugin_hook');
};