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 * @author Aurélien PERONNET <aurelien@tela-botanica.org>
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 * @author Aurélien PERONNET <aurelien@tela-botanica.org>
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 * @license GPL v3 <http://www.gnu.org/licenses/gpl.txt>
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 * @license GPL v3 <http://www.gnu.org/licenses/gpl.txt>
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 * @license CECILL v2 <http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt>
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 * @license CECILL v2 <http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt>
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 * @version $Id$
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 * @version $Id$
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 */
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 */
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class CoordSearch {
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class CoordSearch extends Cel {
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	private $adresse_service_geonames = null;
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	private $adresse_service_geonames = null;
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	private $adresse_service_local = null;
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	private $adresse_service_local = null;
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	function CoordSearch($config) {
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	function CoordSearch($config) {
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		parent::__construct($config);
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		parent::__construct($config);
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		$this->adresse_service_geonames = $config['cel_db']['url_service_geo_geonames'];
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		$this->adresse_service_geonames = $this->config['cel_db']['url_service_geo_geonames'];
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		$this->adresse_service_local = $config['cel_db']['url_service_geo_local'];
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		$this->adresse_service_local = $this->config['cel_db']['url_service_geo_local'];
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		$this->nom_service_geocoding = $config['cel_db']['nom_service_geocoding_geonames'];
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		$this->nom_service_geocoding = $this->config['cel_db']['nom_service_geocoding_geonames'];
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		$this->nom_service_reverse_geocoding = $config['cel_db']['nom_service_reverse_geocoding_geonames'];
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		$this->nom_service_reverse_geocoding = $this->config['cel_db']['nom_service_reverse_geocoding_geonames'];
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			$header = 'Content-Type: application/json; charset=UTF-8';
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			$header = 'Content-Type: application/json; charset=UTF-8';
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			$retour = json_encode($informations_communes) ;
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			$retour = json_encode($informations_communes) ;
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	    } elseif ($this->estUneRequeteGeocoding($params)) {
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	    } elseif ($this->estUneRequeteGeocoding($params)) {
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	    	$informations_coord = $this->effectuerRequeteGeocodingGeonames($params['commune'],$params['code_postal'],$params['pays']);
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	    	$informations_coord = $this->effectuerRequeteGeocodingGeonames($params['commune'],$params['code_postal'],$params['code_pays']);
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		$infos_commune_json = @file_get_contents($this->adresse_service_geonames.
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		$infos_commune_json = @file_get_contents($this->adresse_service_geonames.
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												$this->nom_service_reverse_geocoding.
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												$this->nom_service_reverse_geocoding.
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												"?featureClass=ADM4&lat=".urlencode($lat)."&lng=".urlencode($lon).
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												"?featureClass=ADM4&lat=".urlencode($lat)."&lng=".urlencode($lon).
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												"&style=full") ;
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												"&style=full") ;
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		$objet_retour = json_decode($infos_commune_json);
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		$objet_retour = json_decode($infos_commune_json);
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		$retour = false;
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		$retour = false;
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		if($this->estUnRetourGeonamesValide($retour)) {
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		if($this->estUnRetourReverseGeocodingGeonamesValide($objet_retour)) {
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			$retour = array('nom' => $objet_retour->geonames[0]->name, 'code_insee' => $objet_retour->geonames[0]->AdminCode2);
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			$retour = array('nom' => $objet_retour->geonames[0]->name, 'code_insee' => $objet_retour->geonames[0]->adminCode4);
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		}
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		}
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		return $retour;
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		return $retour;
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	}
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	}
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	private function estUnRetourGeonamesValide($retour) {
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	private function estUnRetourReverseGeocodingGeonamesValide($retour) {
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		$valide = false;
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		$valide = false;
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		if (is_a($retour,'stdClass') && property_exists($retour,'geonames')
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		if (is_a($retour,'stdClass') && property_exists($retour,'geonames')
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			&& is_array($retour->geonames) && count($retour->geonames > 0)) {
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			&& is_array($retour->geonames) && count($retour->geonames > 0)) {
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			$requete .= "&postalcode_startsWith=".urlencode($code_postal);
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			$requete .= "&postalcode_startsWith=".urlencode($code_postal);
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	    }
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	    }
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		$requete .= "&country=".urlencode($code_pays)."&maxRows=10" ;
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		$requete .= "&country=".urlencode($code_pays)."&maxRows=10" ;
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		$coord_json = @file_get_contents($requete);
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		$objet_retour = json_decode($coord_json);
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		$retour = false;
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		if($this->estUnRetourGeocodingGeonamesValide($objet_retour)) {
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			$retour = array('lat' => $objet_retour->postalCodes[0]->lat,
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							'lng' => $objet_retour->postalCodes[0]->lng,
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							'nom' => $objet_retour->postalCodes[0]->placeName,
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							'code_insee' => $objet_retour->postalCodes[0]->postalCode
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							);
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		$coord_json = @file_get_contents($requete);
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		}
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		return $retour;
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	}
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	private function estUnRetourGeocodingGeonamesValide($retour) {
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		$valide = false;
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		if (is_a($retour,'stdClass') && property_exists($retour,'postalCodes')
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			&& is_array($retour->postalCodes) && count($retour->postalCodes > 0)) {
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			$objet_resultats = $retour->postalCodes[0];
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			if (property_exists($objet_resultats,'lat') && property_exists($objet_resultats,'lng')) {
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				$valide = true;
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			}
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		}
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		return $coord_json;
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		return $valide;
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	}
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	}