gnu-social/lib/location.php

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2009-09-16 09:27:11 +09:00
<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Class for locations
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Location
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2009 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET') && !defined('LACONICA')) {
exit(1);
}
/**
* class for locations
*
* @category Location
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
class Location
{
public $lat;
public $lon;
public $location_id;
public $location_ns;
var $names;
const geonames = 1;
const whereOnEarth = 2;
static function fromName($name, $language=null, $location_ns=null)
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{
if (is_null($language)) {
$language = common_language();
}
if (is_null($location_ns)) {
$location_ns = common_config('location', 'namespace');
}
$location = null;
if (Event::handle('LocationFromName', array($name, $language, $location_ns, &$location))) {
switch ($location_ns) {
case Location::geonames:
return Location::fromGeonamesName($name, $language);
break;
case Location::whereOnEarth:
return Location::fromWhereOnEarthName($name, $language);
break;
}
}
return $location;
}
static function fromGeonamesName($name, $language)
{
$location = null;
$client = HTTPClient::start();
// XXX: break down a name by commas, narrow by each
$str = http_build_query(array('maxRows' => 1,
'q' => $name,
'lang' => $language,
'type' => 'json'));
$result = $client->get('http://ws.geonames.org/search?'.$str);
if ($result->code == "200") {
$rj = json_decode($result->body);
if (count($rj['geonames']) > 0) {
$n = $rj['geonames'][0];
$location = new Location();
$location->lat = $n->lat;
$location->lon = $n->lon;
$location->name = $n->name;
$location->location_id = $n->geonameId;
$location->location_ns = Location:geonames;
}
}
return $location;
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}
static function fromId($location_id, $location_ns = null)
{
if (is_null($location_ns)) {
$location_ns = common_config('location', 'namespace');
}
}
function getName($language=null)
{
if (is_null($language)) {
$language = common_language();
}
if (array_key_exists($this->names, $language)) {
return $this->names[$language];
}
}
}