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extract Geonames stuff to a plugin

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This commit is contained in:
Evan Prodromou
2009-10-22 15:44:36 -04:00
parent 7b227fd1c0
commit 9c983c3830
2 changed files with 363 additions and 51 deletions
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133
lib/location.php
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@@ -34,6 +34,10 @@ if (!defined('STATUSNET') && !defined('LACONICA')) {
/**
* class for locations
*
* These are stored in the DB as part of notice and profile records,
* but since they're about the same in both, we have a separate class
* for them.
*
* @category Location
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
@@ -48,73 +52,93 @@ class Location
public $location_id;
public $location_ns;
var $names;
var $names = array();
const geonames = 1;
const whereOnEarth = 2;
/**
* Constructor that makes a Location from a string name
*
* @param string $name Human-readable name (any kind)
* @param string $language Language, default = common_language()
*
* @return Location Location with that name (or null if not found)
*/
static function fromName($name, $language=null, $location_ns=null)
static function fromName($name, $language=null)
{
if (is_null($language)) {
$language = common_language();
}
if (is_null($location_ns)) {
$location_ns = common_config('location', 'namespace');
$location = null;
// Let a third-party handle it
Event::handle('LocationFromName', array($name, $language, &$location));
return $location;
}
/**
* Constructor that makes a Location from an ID
*
* @param integer $id Identifier ID
* @param integer $ns Namespace of the identifier
* @param string $language Language to return name in (default is common)
*
* @return Location The location with this ID (or null if none)
*/
static function fromId($id, $ns, $language=null)
{
$location = null;
// Let a third-party handle it
Event::handle('LocationFromId', array($id, $ns, $language, &$location));
return $location;
}
/**
* Constructor that finds the nearest location to a lat/lon pair
*
* @param float $lat Latitude
* @param float $lon Longitude
* @param string $language Language for results, default = current
*
* @return Location the location found, or null if none found
*/
static function fromLatLon($lat, $lon, $language=null)
{
if (is_null($language)) {
$language = common_language();
}
$location = null;
if (Event::handle('LocationFromName', array($name, $language, $location_ns, &$location))) {
// Let a third-party handle it
switch ($location_ns) {
case Location::geonames:
return Location::fromGeonamesName($name, $language);
break;
case Location::whereOnEarth:
return Location::fromWhereOnEarthName($name, $language);
break;
}
if (Event::handle('LocationFromLatLon',
array($lat, $lon, $language, &$location))) {
// Default is just the lat/lon pair
$location = new Location();
$location->lat = $lat;
$location->lon = $lon;
}
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 $location;
}
static function fromId($location_id, $location_ns = null)
{
if (is_null($location_ns)) {
$location_ns = common_config('location', 'namespace');
}
}
/**
* Get the name for this location in the given language
*
* @param string $language language to use, default = current
*
* @return string location name or null if not found
*/
function getName($language=null)
{
@@ -124,6 +148,13 @@ class Location
if (array_key_exists($this->names, $language)) {
return $this->names[$language];
} else {
$name = null;
Event::handle('LocationNameLanguage', array($this, $language, &$name));
if (!empty($name)) {
$this->names[$language] = $name;
return $name;
}
}
}
}