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<?php |
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/** |
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* Changeset.php |
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* 25-Apr-2011 |
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* |
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* PHP Version 5 |
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* |
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* @category Services |
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* @package Services_Openstreetmap |
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* @author Ken Guest <kguest@php.net> |
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* @license BSD http://www.opensource.org/licenses/bsd-license.php |
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* @version Release: @package_version@ |
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* @link Changeset.php |
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*/ |
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|
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/** |
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* Services_Openstreetmap_Changeset |
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* |
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* @category Services |
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* @package Services_Openstreetmap |
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* @author Ken Guest <kguest@php.net> |
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* @license BSD http://www.opensource.org/licenses/bsd-license.php |
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* @link Changeset.php |
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*/ |
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class Services_Openstreetmap_Changeset extends Services_Openstreetmap_Object |
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{ |
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protected $type = 'changeset'; |
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protected $members = array(); |
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protected $membersIds = array(); |
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protected $open = false; |
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protected $id = null; |
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|
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/** |
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* __construct |
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* |
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* @return Services_Openstreetmap_Changeset |
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*/ |
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public function __construct() |
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{ |
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} |
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|
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/** |
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* begin |
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* |
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* @param string $message The changeset log message. |
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* |
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* @return void |
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*/ |
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public function begin($message) |
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{ |
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$this->members = array(); |
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$this->open = true; |
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$config = $this->getConfig(); |
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$userAgent = $config->getValue('User-Agent'); |
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$doc = "<?xml version='1.0' encoding=\"UTF-8\"?>\n" . |
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'<osm version="0.6" generator="' . $userAgent . '">' |
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. "<changeset id='0' open='false'>" |
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. '<tag k="comment" v="' . $message . '"/>' |
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. '<tag k="created_by" v="' . $userAgent . '/0.1"/>' |
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. '</changeset></osm>'; |
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$url = $config->getValue('server') |
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. 'api/' |
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. $config->getValue('api_version') |
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. '/changeset/create'; |
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$user = $config->getValue('user'); |
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$password = $config->getValue('password'); |
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if (is_null($user)) { |
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throw new Services_Openstreetmap_Exception('User must be set'); |
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} |
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if (is_null($password)) { |
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throw new Services_Openstreetmap_Exception('Password must be set'); |
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} |
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$response = $this->getTransport()->getResponse( |
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$url, |
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HTTP_Request2::METHOD_PUT, |
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$user, |
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$password, |
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$doc, |
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null, |
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array(array('Content-type', 'text/xml', true)) |
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); |
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$code = $response->getStatus(); |
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if (Services_Openstreetmap_Transport::OK == $code) { |
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$trimmed = trim($response->getBody()); |
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if (is_numeric($trimmed)) { |
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$this->id = $trimmed; |
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} |
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} |
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} |
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|
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/** |
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* add object to the changeset so changes can be transmitted to the server |
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* |
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* @param Services_Openstreetmap_Object $object OSM object |
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* |
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* @return void |
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*/ |
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public function add(Services_Openstreetmap_Object $object) |
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{ |
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if ($this->open === false) { |
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throw new Services_Openstreetmap_Exception( |
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'Object added to closed changeset' |
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); |
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} |
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$object->setChangesetId($this->getId()); |
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$objectId = $object->getType() . $object->getId(); |
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if (!in_array($objectId, $this->membersIds)) { |
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$this->members[] = $object; |
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$this->membersIds[] = $objectId; |
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} else { |
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throw new Services_Openstreetmap_Exception( |
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'Object added to changeset already' |
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); |
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} |
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} |
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|
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/** |
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* commit |
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* |
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* Generate osmChange document and post it to the server, when successful |
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* close the changeset. |
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* |
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* @return void |
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* @link http://wiki.openstreetmap.org/wiki/OsmChange |
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*/ |
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public function commit() |
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{ |
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if (!$this->open) { |
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throw new Services_Openstreetmap_Exception( |
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'Attempt to commit a closed changeset' |
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); |
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} |
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|
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// Generate URL that the osmChange document will be posted to |
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$cId = $this->getId(); |
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$config = $this->getConfig()->asArray(); |
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$url = $config['server'] |
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. 'api/' |
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. $config['api_version'] . |
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"/changeset/{$cId}/upload"; |
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|
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// Generate the osmChange document |
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$blocks = null; |
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foreach ($this->members as $member) { |
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$blocks .= $member->getOsmChangeXML() . "\n"; |
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} |
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|
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$doc = "<osmChange version='0.6' generator='Services_Openstreetmap'>\n" |
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. $blocks . '</osmChange>'; |
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|
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// Post the osmChange document to the server |
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try { |
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$response = $this->getTransport()->getResponse( |
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$url, |
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HTTP_Request2::METHOD_POST, |
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$config['user'], |
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$config['password'], |
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$doc, |
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null, |
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array(array('Content-type', 'text/xml', true)) |
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); |
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$this->updateObjectIds($response->getBody()); |
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} catch (Exception $ex) { |
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$code = $ex->getCode(); |
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} |
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|
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if (isset($response) && is_object($response)) { |
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$code = $response->getStatus(); |
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} |
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if (Services_Openstreetmap_Transport::OK != $code) { |
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throw new Services_Openstreetmap_Exception( |
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'Error posting changeset', |
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$code |
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); |
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|
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} |
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// Explicitly close the changeset |
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$url = $config['server'] |
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. 'api/' |
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. $config['api_version'] |
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. "/changeset/{$cId}/close"; |
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|
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$code = null; |
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$response = null; |
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try { |
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$response = $this->getTransport()->getResponse( |
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$url, |
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HTTP_Request2::METHOD_PUT, |
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$config['user'], |
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$config['password'], |
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null, |
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null, |
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array(array('Content-type', 'text/xml', true)) |
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); |
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} catch (Exception $ex) { |
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$code = $ex->getCode(); |
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} |
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if (isset($response) && is_object($response)) { |
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$code = $response->getStatus(); |
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} |
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if (Services_Openstreetmap_Transport::OK != $code) { |
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throw new Services_Openstreetmap_Exception( |
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'Error closing changeset', |
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$code |
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); |
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} |
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$this->open = false; |
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} |
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|
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/** |
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* getCreatedAt |
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* |
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* @return string |
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*/ |
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public function getCreatedAt() |
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{ |
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return (string) $this->getAttributes()->created_at; |
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} |
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|
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/** |
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* getClosedAt |
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* |
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* @return string |
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*/ |
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public function getClosedAt() |
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{ |
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return (string) $this->getAttributes()->closed_at; |
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} |
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|
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/** |
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* isOpen |
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* |
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* @return boolean |
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*/ |
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public function isOpen() |
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{ |
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$attribs = $this->getAttributes(); |
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if (!is_null($attribs)) { |
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return $attribs->open == 'true'; |
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} else { |
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return $this->open; |
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} |
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} |
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|
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/** |
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* getMinLon |
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* |
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* @return float |
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*/ |
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public function getMinLon() |
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{ |
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return (float) $this->getAttributes()->min_lon; |
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} |
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|
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/** |
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* getMinLat |
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* |
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* @return float |
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*/ |
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public function getMinLat() |
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{ |
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return (float) $this->getAttributes()->min_lat; |
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} |
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|
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/** |
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* getMaxLon |
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* |
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* @return float |
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*/ |
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public function getMaxLon() |
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{ |
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return (float) $this->getAttributes()->max_lon; |
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} |
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|
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/** |
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* getMaxLat |
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* |
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* @return float |
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*/ |
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public function getMaxLat() |
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{ |
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return (float) $this->getAttributes()->max_lat; |
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} |
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|
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/** |
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* getId |
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* |
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* @return numeric value or null if none set |
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*/ |
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public function getId() |
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{ |
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$p_id = parent::getId(); |
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if (is_null($p_id)) { |
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return $this->id; |
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} else { |
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return $p_id; |
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} |
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} |
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/** |
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* Given diffResult xml, update Ids of objects that are members of the |
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* current changeset. |
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* |
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* @param string $body diffResult xml |
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* |
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* @return void |
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*/ |
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public function updateObjectIds($body) |
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{ |
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$body = trim($body); |
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$cxml = simplexml_load_string($body); |
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$obj = $cxml->xpath('//diffResult'); |
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foreach ($obj[0]->children() as $child) { |
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$old_id = null; |
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$new_id = null; |
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$old_id = (string) $child->attributes()->old_id; |
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$new_id = (string) $child->attributes()->new_id; |
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$this->updateObjectId($child->getName(), $old_id, $new_id); |
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} |
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} |
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|
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/** |
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* Update id of some type of object |
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* |
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* @param string $type Object type |
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* @param integer $old_id Old id |
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* @param integer $new_id New id |
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* |
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* @return void |
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*/ |
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public function updateObjectId($type, $old_id, $new_id) |
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{ |
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if ($old_id == $new_id) { |
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return; |
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} |
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foreach ($this->members as $member) { |
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if ($member->getType() == $type) { |
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if ($member->getId() == $old_id) { |
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$member->setId($new_id); |
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} |
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} |
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} |
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} |
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} |
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// vim:set et ts=4 sw=4: |
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?> |