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/*-----8<--------------------------------------------------------------------
*
* BEdita - a semantic content management framework
*
* Copyright 2008 ChannelWeb Srl, Chialab Srl
*
* This file is part of BEdita: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* BEdita is distributed WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with BEdita (see LICENSE.LGPL).
* If not, see <http://gnu.org/licenses/lgpl-3.0.html>.
*
*------------------------------------------------------------------->8-----
*/
/**
* Geographic tag object - geographical identification metadata
*
* @version $Revision$
* @modifiedby $LastChangedBy$
* @lastmodified $LastChangedDate$
*
* $Id$
*/
class GeoTag extends BEAppModel
{
var $recursive = 0 ;
function beforeValidate() {
$this->checkFloat('latitude');
$this->checkFloat('longitude');
return true;
}
function beforeSave() {
// convert gmaps_lookat array in json format
if (empty($this->data["GeoTag"]["gmaps_lookat"]) || is_array($this->data["GeoTag"]["gmaps_lookat"])) {
if (!empty($this->data["GeoTag"]["latitude"])) {
$this->data["GeoTag"]["gmaps_lookat"]["latitude"] = $this->data["GeoTag"]["latitude"];
}
if (!empty($this->data["GeoTag"]["longitude"])) {
$this->data["GeoTag"]["gmaps_lookat"]["longitude"] = $this->data["GeoTag"]["longitude"];
}
// calculate lookat.range from zoom = Math.round(26-(Math.log(range)/Math.log(2))) http://www.msa.mmu.ac.uk/~fraser/ge/viewinmaps/
if (empty($this->data["GeoTag"]["gmaps_lookat"]["range"]) && !empty($this->data["GeoTag"]["gmaps_lookat"]["zoom"])) {
$this->data["GeoTag"]["gmaps_lookat"]["range"] = exp(26 - $this->data["GeoTag"]["gmaps_lookat"]["zoom"] + log(2));
}
if (!empty($this->data["GeoTag"]["gmaps_lookat"])) {
$recordsToString = trim( implode("", $this->data["GeoTag"]["gmaps_lookat"]) );
if (!empty( $recordsToString )) {
$this->data["GeoTag"]["gmaps_lookat"] = json_encode($this->data["GeoTag"]["gmaps_lookat"]);
} else {
$this->data["GeoTag"]["gmaps_lookat"] = null;
}
}
}
return true;
}
function afterFind($results, $primary = false) {
// decode json gmaps_lookat field
if (!empty($results[0]["GeoTag"])) {
foreach ($results as &$geotag) {
if (!empty($geotag["GeoTag"]["gmaps_lookat"])) {
$geotag["GeoTag"]["gmaps_lookat"] = $this->decodeLookat($geotag["GeoTag"]["gmaps_lookat"]);
}
}
} else if (!empty($results["GeoTag"])) {
if (!empty($results["GeoTag"]["gmaps_lookat"])) {
$results["GeoTag"]["gmaps_lookat"] = $this->decodeLookat($results["GeoTag"]["gmaps_lookat"]);
}
}
return $results;
}
/**
* try to decode json gmaps_lookat field
*
* @param string $gmapsLookat json format
* @return mixed string if decode fails, array otherwise
*/
public function decodeLookat($gmapsLookat) {
$lookatDecoded = json_decode($gmapsLookat, true);
if (empty($lookatDecoded)) {
$lookatDecoded = $gmapsLookat;
}
return $lookatDecoded;
}
// TODO: convert geo coordinates if necessary....es http://www.phpclasses.org/browse/file/10671.html
private function geoConvert($str) {
return $str;
}
/**
* Return an array of column types to transform (cast)
* Used to build consistent REST APIs
*
* Add to table fields type the serialized gmaps_lookat field types
*
* Possible options are:
* - 'castable' an array of fields that the rest api would be cast to
*
* @see AppModel::apiTransformer()
* @param array $options
* @return array
*/
public function apiTransformer(array $options = array()) {
$transformer = parent::apiTransformer($options);
$transformer['gmaps_lookat'] = array(
'latitude' => 'float',
'longitude' => 'float',
'zoom' => 'integer'
);
return $transformer;
}
}