Subversion Repositories eFlore/Applications.cel

<?php

// ATTENTION ! Classe compatible uniquement avec nouveau format de bdd du cel //

/**

* PHP Version 5

*

* Retourne un RDF des images pour eflore

*

* @category  PHP

* @package   jrest

* @author    david <david@tela-botanica.org>

* @copyright 2010 Tela-Botanica

* @license   http://www.cecill.info/licences/Licence_CeCILL_V2-fr.txt Licence CECILL

* @version   SVN: <svn_id>

* @link      /doc/jrest/

*/

class ImageRDF extends Cel {

	/**

	 * Recherche des images associee au numero nomenclatural

	 * @param numeric $uid [0] : numero nomenclatural obligatoire , $uid[1] (optionnel) : taille image : S , M,  L (default)

	 */

	function getElement($uid){

		// TODO : recherche taxon ?

		// Taille

		if (isset($uid[1])) {

			$taille = $uid[1]; // S , M ou L

		}

		else {

			$taille = 'L';

		}

        // Recherche de toutes les observations transmises du taxon pour lesquelles une photo est associee.

        $requete_obs_publiques_images_taxon = 'SELECT * FROM cel_obs, cel_obs_images, cel_images '.

        		' WHERE cel_obs.nom_sel_nn = '.Cel::db()->proteger($uid[0]).

        		' AND cel_obs_images.id_observation = cel_obs.id_observation '.

				' AND cel_obs.transmission =  1 '.

				' AND cel_images.id_image = cel_obs_images.id_image';

        $resultat_requete_obs_images_taxon = Cel::db()->requeter($requete_obs_publiques_images_taxon);

        $picture_path = $this->config['cel']['url_images'];

		// Formatage du xml

		$xml = '<?xml version="1.0" encoding="utf-8"?>'."\n";

		$xml .= '<rdf:RDF'."\n";

		$xml .= '	xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"'."\n";

		$xml .= '	xmlns:dc="http://purl.org/dc/elements/1.1/"'."\n";

		$xml .= '	xmlns:dcterms="http://purl.org/dc/terms">'."\n";

		$images_obs_taxon = array();

		if (is_array($resultat_requete_obs_images_taxon)) {

			$images_obs_taxon = $resultat_requete_obs_images_taxon;

		}

        foreach ($images_obs_taxon as $picture) {

        	// Calcul du chemin sur le serveur en fonction de l'identifiant (id)

        	$id = $picture['id_image'];

			$id = sprintf('%09s', $id) ;

            $id = wordwrap($id, 3 , '_', true) ;

            $id_fichier = $id.".jpg" ;

            $niveauDossier = explode("_", $id) ;

            $dossierNiveau1 = $niveauDossier[0] ;

            $dossierNiveau2 = $niveauDossier[1] ;

            $picture_path_with_level = $picture_path.'/'.$dossierNiveau1.'/'.$dossierNiveau2 ;

       		// TODO: mettre nom prénom dans créateur ? ou mail ?

			$xml .= '	<rdf:Description about="'.$picture_path_with_level.'/'.$taille.'/'.$id.'_'.$taille.'.jpg'.'"'."\n";

			$xml .= '		dc:identifier="'.'urn:lsid:tela-botanica.org:celpic:'.$picture['id_image'].'"'."\n";

			$xml .= '		dc:title="'.$picture['nom_sel'].'"'."\n";

			$xml .= '		dc:description="'.$picture['nom_sel']." - [fichier_origine:".$picture['nom_original'].'][image_identifiant:'.$picture['id_image'].']';

			$xml .= '[image_ordre:'.$picture['ordre'].']';

			$xml .= '[observation_identifiant:'.$picture['id_observation'].']';

			$xml .= '[observation_ordre:'.$picture['ordre'].']'.'"'."\n";

			$xml .= '		dc:creator="'.$picture['courriel_utilisateur'].'"'."\n";

			$xml .= '		dc:publisher="CEL"'."\n";

			$xml .= '		dcterms:spatial="'.utf8_decode($picture['zone_geo'])." (".$picture['ce_zone_geo'].")".'"'."\n";

	        if ($picture['date_observation'] != '0000-00-00 00:00:00') {

				list($year,$month,$day) = explode('-',$picture['date_observation']);

	            list($day) = explode(' ',$day);

				$created = $day.'/'.$month.'/'.$year;

				$xml .= '		dcterms:created="'.$created.'"'."\n";

			}

			$xml .= '		dcterms:licence="CC BY-SA"/>'."\n";

		}

		$xml .= '</rdf:RDF>'."\n";

		// Envoi du xml au navigateur

		header("Content-Type: text/xml");

		echo utf8_encode(str_replace(' & ', ' & ', $xml));

      }

	function envoyerRequete($url) {

		$contenu = false;

		$contexte = stream_context_create(array(

				'http' => array(

      			'method' => 'GET',

			    'header' => "Content-type: application/x-www-form-urlencoded\r\n")));

		$flux = @fopen($url, 'r', false, $contexte);

		$contenu = json_decode(stream_get_contents($flux));

		fclose($flux);

		return $contenu;

	}

}

?>