Subversion Repositories eFlore/Applications.cel

<?php
/**
 * Service fournissant des statistiques de l'application CEL au format texte (JSON).
 * Encodage en entrée : utf8
 * Encodage en sortie : utf8
 *
 * Cas d'utilisation :
 * /CelStatistiqueTxt/TypeDeStat : retourne les statistiques demandées
 * Paramêtres :
 * utilisateur=courriel : retourne les statistiques d'un utilisateur donné.
 *
 * @author              Jean-Pascal MILCENT <jpm@tela-botanica.org>
 * @license             GPL v3 <http://www.gnu.org/licenses/gpl.txt>
 * @license             CECILL v2 <http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt>
 * @version             $Id$
 * @copyright   Copyright (c) 2011, Tela Botanica (accueil@tela-botanica.org)
 */
class CelStatistiqueTxt extends Cel {
        
        /**
         * Méthode appelée avec une requête de type GET.
         */
        public function getElement($ressources) {
                $graph = null;
                $serveur = '';

                if (isset($ressources[0])) {
                        $this->analyserParametresUrl();
                        $stat_demande = array_shift($ressources);
                        $methode = 'get'.$stat_demande;
                        if (method_exists($this, $methode)) {
                                $this->ressources = $ressources;
                                $stats = $this->$methode($ressources);
                        } else {
                                $this->messages[] = "Ce type de statistiques '$stat_demande' n'est pas disponible.";
                        }
                } else {
                        $this->messages[] = "La ressource du service CEL StatistiqueTxt doit indiquer le type de statistique. Ex. : .../CelStatistiqueTxt/Nombres";
                }

                if (!is_null($stats)) {
                        $this->envoyerJson($stats);
                }
        }
        
        private function analyserParametresUrl() {
                $this->parametres['utilisateur'] = isset($_GET['utilisateur']) ? Cel::db()->quote($this->verifierSecuriteParametreUrl($_GET['utilisateur'])) : null;
                $this->parametres['num_taxon'] = isset($_GET['num_taxon']) ? Cel::db()->quote($this->verifierSecuriteParametreUrl($_GET['num_taxon'])) : null;
                $this->parametres['taxon'] = isset($_GET['taxon']) ? Cel::db()->quote($this->verifierSecuriteParametreUrl($_GET['taxon'].'%')) : null;
                $this->parametres['tag'] = isset($_GET['tag']) ? $this->verifierSecuriteParametreUrl($_GET['tag']) : null;
                $this->parametres['start'] = isset($_GET['start']) ? $this->verifierSecuriteParametreUrl($_GET['start']) : null;
                $this->parametres['limit'] = isset($_GET['limit']) ? $this->verifierSecuriteParametreUrl($_GET['limit']) : null;
        }
        
        private function getListeUtilisateursNbrePhotos() {
                $liste = array();
                
                $requete = $this->construireRequeteListeUtilisateurNbrePhoto();
                if ($requete != null) {
                        $resultats = Cel::db()->executerRequete($requete);              
                        if ($resultats != false) {
                                foreach ($resultats as $resultat) {
                                        $liste[$resultat['courriel_utilisateur']] = $resultat['nbre'];
                                }
                        }
                }
                return $liste;
        }
        
        private function construireRequeteListeUtilisateurNbrePhoto() {
                $select =       'SELECT co.courriel_utilisateur, COUNT(DISTINCT ci.id_image) AS nbre ';
                $from =         'FROM cel_obs co '.
                                        '       LEFT JOIN cel_obs_images coi ON (coi.id_observation = co.id_observation) '.
                                        '       LEFT JOIN cel_images ci ON (coi.id_image = ci.id_image) ';
                $where =        'WHERE transmission = 1 ';
                $groupBy =      'GROUP BY co.courriel_utilisateur ';
                $orderBy =      'ORDER BY nbre DESC ';
                $limitSql =     'LIMIT 0,150 ';
                
                $zero_images = false;
                if (count($this->parametres) != 0) {
                        extract($this->parametres);
                        
                        $filtres = array();
                        
                        if (isset($utilisateur)) {
                                $filtres[] = "co.courriel_utilisateur = $utilisateur ";
                        }
                        if (isset($num_taxon)) {
                                $filtres[] = "nt = $num_taxon ";
                        }
                        if (isset($taxon)) {
                                $filtres[] = "nom_ret LIKE $taxon ";
                        }
                        if (isset($tag)) {
                                $limitation = $this->construireWhereTags();
                                if ($limitation != null) {
                                        $filtres[] = $limitation;
                                } else {
                                        $zero_images = true;
                                }
                        }
                        $where .= ((count($filtres) > 0) ? 'AND '.implode(' AND ', $filtres) : '');
                        
                        if (isset($start)) {
                                $limitSql = str_replace('0,', "$start,", $limitSql);
                        }
                        if (isset($limit)) {
                                $limitSql = str_replace('150', $limit, $limitSql);
                        }
                }
                if ($zero_images) {
                        $requete = null;
                } else {
                        $requete = $select.$from.$where.$groupBy.$orderBy.$limitSql;
                        //echo $requete;
                }
                return $requete;
        }
        
        private function construireWhereTags() {
                $where = null;
                if (isset($this->parametres['tag'])) {
                        $tag = $this->parametres['tag'];
                        $tag_encode = Cel::db()->quote($this->encoderMotCle(trim($tag)));

                        // Construction de la requête
                        $requete =      'SELECT cmc_id_mot_cle_utilisateur, cmc_id_proprietaire '.
                                'FROM cel_mots_cles_images '.
                                "WHERE cmc_id_mot_cle_general = $tag_encode ";
                        $elements = Cel::db()->executerRequete($requete);
                        
                        if ($elements != false && count($elements) > 0) {
                                // Pré-construction du where de la requête
                                $tpl_where = '(ci_meta_mots_cles LIKE "%%%s%%" AND ci_ce_utilisateur = %s )';
                                $requete_where = array();
                                foreach ($elements as $occurence) {
                                        $requete_where[] = sprintf($tpl_where, $occurence['cmc_id_mot_cle_utilisateur'], Cel::db()->quote($occurence['cmc_id_proprietaire']));
                                }
                                $where = ' ('.implode(" \nOR ", $requete_where).') ';
                        } else {
                                $this->debug[] = "Aucune image ne correspond à ce mot clé.";
                        }
                }
                return $where;
        }
        
        private function getListeTaxonsNbrePhotos() {
                $requete = $this->construireRequeteListeTaxonNbrePhoto();

                $resultats = Cel::db()->executerRequete($requete);
                $liste = array();
                if ($resultats != false) {
                        foreach ($resultats as $resultat) {
                                $liste[$resultat['nom_ret']] = $resultat['nbre'];
                        }
                }
                return $liste;
        }
        
        private function construireRequeteListeTaxonNbrePhoto() {
                $select =       'SELECT nom_ret, COUNT(DISTINCT ci.id_image) AS nbre ';
                $from =         'FROM cel_obs co '.
                                        '       LEFT JOIN cel_obs_images coi ON (coi.id_observation = co.id_observation) '.
                                        '       LEFT JOIN cel_images ci ON (coi.id_image = ci.id_image) ';
                $where =        'WHERE transmission = 1 '.
                                        "       AND nom_ret != '' ";
                $groupBy =      'GROUP BY nom_ret ';
                $orderBy =      'ORDER BY nbre DESC ';
                $limitSql =     'LIMIT 0,150 ';
                
                
                if (count($this->parametres) != 0) {
                        extract($this->parametres);
                        
                        $filtres = array();
                        
                        if (isset($utilisateur)) {
                                $filtres[] = "co.courriel_utilisateur = $utilisateur ";
                        }
                        if (isset($num_taxon)) {
                                $filtres[] = "nt = $num_taxon ";
                        }
                        if (isset($taxon)) {
                                $filtres[] = "nom_ret LIKE $taxon ";
                        }
                        $where .= ((count($filtres) > 0) ? 'AND '.implode(' AND ', $filtres) : '');
                        
                        if (isset($start)) {
                                $limitSql = str_replace('0,', "$start,", $limitSql);
                        }
                        if (isset($limit)) {
                                $limitSql = str_replace('150', $limit, $limitSql);
                        }
                }
                
                $requete = $select.$from.$where.$groupBy.$orderBy.$limitSql;

                return $requete;
        }
        
        private function getNombres() {

                $requete = $this->construireRequeteNbreObs();           
                $info['observations'] = (int) Cel::db()->executerRequete($requete, 'Column');
                
                $requete = $this->construireRequeteNbreObsPubliques();          
                $info['observationsPubliques'] = (int) Cel::db()->executerRequete($requete, 'Column');
                
                $requete = $this->construireRequeteNbreImg();
                $info['images'] =(int) Cel::db()->executerRequete($requete, 'Column');
                
                $requete = $this->construireRequeteNbreImgLiees();
                $info['imagesLiees'] =(int) Cel::db()->executerRequete($requete, 'Column');
                
                $requete = $this->construireRequeteNbreObsLiees();
                $info['observationsLiees'] = (int) Cel::db()->executerRequete($requete, 'Column');
                
                $info['moyImagesParObs'] = ($info['observationsLiees'] > 0 ? round($info['imagesLiees']/$info['observationsLiees'], 2) : '');
                
                $requete = $this->construireRequeteNbreObsParCommune();
                $info['communes'] = ($resultats = Cel::db()->executerRequete($requete)) ? count($resultats) : '' ;
                $info['observationsParCommunesMin'] = 1000;
                $info['observationsParCommunesMax'] = 0;
                $info['observationsParCommunesTotal'] = 0;
                foreach ($resultats as $resultat) {
                        if ($resultat['nbre'] < $info['observationsParCommunesMin']) {
                                $info['observationsParCommunesMin'] = $resultat['nbre'];
                        }
                        if ($resultat['nbre'] > $info['observationsParCommunesMax']) {
                                $info['observationsParCommunesMax'] = $resultat['nbre'];
                        }
                        $info['observationsParCommunesTotal'] += $resultat['nbre'];
                }
                $info['observationsParCommunesMoyenne'] = ($info['communes'] > 0 ) ? round($info['observationsParCommunesTotal'] / $info['communes'], 2) : 0;
                
                return $info;           
        }
        
        private function construireRequeteNbreObs() {
                $requete =      'SELECT COUNT(id_observation) AS nbre '.
                                        'FROM cel_obs ';

                if (count($this->parametres) != 0) {
                        $filtres = array();
                        extract($this->parametres);
                        
                        if (isset($utilisateur)) {
                                $filtres[] = "courriel_utilisateur = $utilisateur ";
                        }
                        if (isset($num_taxon)) {
                                $filtres[] = "num_taxon = $num_taxon ";
                        }
                        if (isset($taxon)) {
                                $filtres[] = "nom_ret LIKE $taxon ";
                        }
                        
                        $requete .= ((count($filtres) > 0) ? 'WHERE '.implode(' AND ', $filtres) : '');
                }

                return $requete;
        }
        
        private function construireRequeteNbreObsPubliques() {
                $requete =      'SELECT COUNT(id_observation) AS nbre '.
                                        'FROM cel_obs '.
                                        "WHERE transmission = 1 ";

                if (count($this->parametres) != 0) {
                        $filtres = array();
                        extract($this->parametres);
                        
                        if (isset($utilisateur)) {
                                $filtres[] = "courriel_utilisateur = $utilisateur ";
                        }
                        if (isset($num_taxon)) {
                                $filtres[] = "num_taxon = $num_taxon ";
                        }
                        if (isset($taxon)) {
                                $filtres[] = "nom_ret LIKE $taxon ";
                        }
                        
                        $requete .= ((count($filtres) > 0) ? 'AND '.implode(' AND ', $filtres) : '');
                }
                
                return $requete;
        }
        
        private function construireRequeteNbreObsParCommune() {
                $requete =      'SELECT COUNT(id_observation) AS nbre '.
                                        'FROM cel_obs '.
                                        "WHERE zone_geo IS NOT NULL ".
                                        "       AND ce_zone_geo IS NOT NULL ";
                $groupBy = 'GROUP BY zone_geo, ce_zone_geo';

                if (count($this->parametres) != 0) {
                        $filtres = array();
                        extract($this->parametres);
                        
                        if (isset($utilisateur)) {
                                $filtres[] = "courriel_utilisateur = $utilisateur ";
                        }
                        if (isset($num_taxon)) {
                                $filtres[] = "nt = $num_taxon ";
                        }
                        if (isset($taxon)) {
                                $filtres[] = "nom_ret LIKE $taxon ";
                        }
                        
                        $requete .= ((count($filtres) > 0) ? 'AND '.implode(' AND ', $filtres) : '');
                }
                $requete .= $groupBy;
                
                return $requete;
        }
        
        private function construireRequeteNbreImg() {
                $select =       'SELECT COUNT(DISTINCT ci.id_image) AS nbre ';
                $from = 'FROM cel_images ci ';
                
                if (count($this->parametres) != 0) {
                        $filtres = array();
                        
                        extract($this->parametres);
                        
                        if (isset($utilisateur)) {
                                $filtres[] = "courriel_utilisateur = $utilisateur ";
                        }
                        if (isset($num_taxon)) {
                                 
                                $filtres[] = "nt = $num_taxon ";
                        }
                        if (isset($taxon)) {
                                $filtres[] = "nom_ret LIKE $taxon ";
                        }
                        if (isset($num_taxon) || isset($taxon)) {
                                $from .= 'LEFT JOIN cel_obs_images coi ON (coi.id_image = ci.id_image) '.
                                                'LEFT JOIN cel_obs co ON (coi.id_observation = co.id_observation) ';
                        }
                        
                        $where = ((count($filtres) > 0) ? 'WHERE '.implode(' AND ', $filtres) : '');
                }
                $requete = $select.$from.$where;

                return $requete;
        }
        
        private function construireRequeteNbreImgLiees() {
                $select = 'SELECT COUNT(DISTINCT ci.id_image) AS nbre ';
                $from = 'FROM cel_obs_images coi '.
                                '       LEFT JOIN cel_images ci ON (coi.id_image = ci.id_image) ';
                
                if (count($this->parametres) != 0) {
                        $filtres = array();
                        
                        extract($this->parametres);
                        
                        if (isset($utilisateur)) {
                                $filtres[] = "ci.courriel_utilisateur = $utilisateur ";
                        }
                        if (isset($num_taxon)) {
                                $filtres[] = "nt = $num_taxon ";
                        }
                        if (isset($taxon)) {
                                $filtres[] = "nom_ret LIKE $taxon ";
                        }
                        
                        if (isset($num_taxon) || isset($taxon)) {
                                $from .= 'LEFT JOIN cel_obs ON (coi.id_observation = co.id_observation) ';
                        }
                        
                        $where = ((count($filtres) > 0) ? 'WHERE '.implode(' AND ', $filtres) : '');
                }
                
                $requete = $select.$from.$where;
                return $requete;
        }
        
        private function construireRequeteNbreObsLiees() {
                $select = 'SELECT COUNT(DISTINCT coi.id_observation) AS nbre ';
                $from = 'FROM cel_obs_images coi '.
                                '       LEFT JOIN cel_obs co ON (coi.id_observation = co.id_observation) ';
                
                if (count($this->parametres) != 0) {
                        $filtres = array();
                        
                        extract($this->parametres);
                        
                        if (isset($utilisateur)) {
                                $filtres[] = "courriel_utilisateur = $utilisateur ";
                        }
                        if (isset($num_taxon)) {
                                $filtres[] = "nt = $num_taxon ";
                        }
                        if (isset($taxon)) {
                                $filtres[] = "nom_ret LIKE $taxon ";
                        }
                        
                        $where = ((count($filtres) > 0) ? 'WHERE '.implode(' AND ', $filtres) : '');
                }
                
                $requete = $select.$from.$where;
                
                return $requete;
        }
}
?>