17 |
delphine |
1 |
<?php
|
|
|
2 |
|
|
|
3 |
/**
|
|
|
4 |
* Recuperer les stations ou se sont realisees des observations effectuees
|
|
|
5 |
* par les utilisateurs du Carnet En Ligne (http://tela-botanica.org/page:cel
|
|
|
6 |
*
|
|
|
7 |
* @author Alexandre GALIBERT
|
|
|
8 |
* @copyright 2013 Tela Botanica (accueil@tela-botanica.org)
|
|
|
9 |
*
|
|
|
10 |
*/
|
|
|
11 |
|
|
|
12 |
|
|
|
13 |
|
|
|
14 |
class Stations {
|
|
|
15 |
|
|
|
16 |
private $zoom = null;
|
|
|
17 |
private $bbox = null;
|
|
|
18 |
|
|
|
19 |
private $utilisateur = '';
|
|
|
20 |
private $departement = '';
|
|
|
21 |
private $taxon = null;
|
|
|
22 |
private $referentiel = '';
|
|
|
23 |
private $sousTaxons = array();
|
|
|
24 |
|
|
|
25 |
private $bdd;
|
|
|
26 |
|
|
|
27 |
|
|
|
28 |
public function __construct() {}
|
|
|
29 |
|
|
|
30 |
public function consulter($ressources, $parametres) {
|
|
|
31 |
extract($parametres);
|
|
|
32 |
$zoomMaxMaillage = Config::get('zoom_maximal_maillage');
|
|
|
33 |
$seuilMaillage = Config::get('seuil_maillage');
|
|
|
34 |
$this->utilisateur = $utilisateur != '*' ? $utilisateur : '';
|
|
|
35 |
$this->departement = $dept != '*' ? $dept : '';
|
|
|
36 |
|
|
|
37 |
// recuperation, traitement de tous les parametres et vertification du zoom
|
|
|
38 |
// et des coordonnees des limites de l'espace de recherche (parametre bbox)
|
|
|
39 |
$statutParametresEspace = $this->traiterParametresEspace($parametres);
|
|
|
40 |
if ($statutParametresEspace == false) {
|
|
|
41 |
$message = "Recherche des stations impossible : parametres de l'espace de recherche incorrects";
|
|
|
42 |
return new Exception($message, RestServeur::HTTP_CODE_MAUVAISE_REQUETE);
|
|
|
43 |
}
|
|
|
44 |
|
|
|
45 |
// recherche du taxon dans les referentiels bdtfx et bdtxa et verification de sa validite
|
|
|
46 |
if ($referentiel != '*') {
|
|
|
47 |
$this->referentiel = $this->verifierExistenceReferentiel($referentiel);
|
|
|
48 |
if (is_null($this->referentiel)) {
|
|
|
49 |
$message = "Recherche des stations impossible : referentiel inconnu\n"
|
|
|
50 |
+ "Voici les referentiels disponibles : "
|
|
|
51 |
+ implode(', ', Referentiel::listeReferentielsDisponibles());
|
|
|
52 |
return new Exception($message, RestServeur::HTTP_CODE_MAUVAISE_REQUETE);
|
|
|
53 |
}
|
|
|
54 |
}
|
|
|
55 |
|
|
|
56 |
if ($num_taxon != '*') {
|
|
|
57 |
$this->traiterParametresTaxon($num_taxon);
|
|
|
58 |
if (is_null($this->taxon)) {
|
|
|
59 |
$message = "Recherche des stations impossible : taxon non trouve dans les referentiels";
|
|
|
60 |
return new Exception($message, RestServeur::HTTP_CODE_MAUVAISE_REQUETE);
|
|
|
61 |
}
|
|
|
62 |
// recuperer les sous-taxons
|
|
|
63 |
$referentiel = new Referentiel($this->referentiel);
|
|
|
64 |
$this->sousTaxons = $referentiel->recupererSousTaxons();
|
|
|
65 |
}
|
|
|
66 |
|
|
|
67 |
$stations = array();
|
|
|
68 |
if ($this->zoom <= $zoomMaxMaillage && is_null($this->taxon) && $this->departement != '*'
|
|
|
69 |
&& $this->utilisateur != '*' && $this->nombreStations() >= $seuilMaillage) {
|
|
|
70 |
// recuperer les mailles se trouvant dans l'espace de recherche demande
|
|
|
71 |
$stations = $this->getMailles();
|
|
|
72 |
} else {
|
|
|
73 |
// recuperer les informations sur les stations repondant a ces parametres
|
|
|
74 |
$stations = $this->recupererStations();
|
|
|
75 |
if ($this->zoom <= $zoomMaxMaillage && count($stations) >= $seuilMaillage) {
|
|
|
76 |
// generer un maillage a partir des stations recuperees dans la base de donnees
|
|
|
77 |
$maillage = new Maillage($this->bbox, $this->zoom, 'sophy');
|
|
|
78 |
$maillage->genererMaillesVides();
|
|
|
79 |
$maillage->ajouterPoints($stations);
|
|
|
80 |
$stations = $maillage->resumePourReponseAJAX();
|
|
|
81 |
}
|
|
|
82 |
}
|
|
|
83 |
|
|
|
84 |
// mettre en forme les informations au format JSON
|
|
|
85 |
$formateurJSON = new FormateurJson();
|
|
|
86 |
$donneesFormatees = $formateurJSON->formaterStations($stations);
|
|
|
87 |
return $donneesFormatees;
|
|
|
88 |
}
|
|
|
89 |
|
|
|
90 |
|
|
|
91 |
|
|
|
92 |
//-------------------------------------------------------------------------------
|
|
|
93 |
// Recuperation et verification des parametres
|
|
|
94 |
//-------------------------------------------------------------------------------
|
|
|
95 |
|
|
|
96 |
private function traiterParametresEspace($parametres) {
|
|
|
97 |
$this->zoom = $this->verifierZoom($parametres['zoom']);
|
|
|
98 |
$this->bbox = $this->verifierCoordonneesBbox($parametres['bbox']);
|
|
|
99 |
return (!is_null($this->zoom) && !is_null($this->bbox));
|
|
|
100 |
}
|
|
|
101 |
|
|
|
102 |
private function traiterParametresTaxon($numeroTaxon) {
|
|
|
103 |
if ($numeroTaxon != '*') {
|
|
|
104 |
if ($this->referentiel != '') {
|
|
|
105 |
$referentiel = new Referentiel($this->referentiel);
|
|
|
106 |
$this->taxon = $referentiel->recupererTaxon($numeroTaxon);
|
|
|
107 |
} else {
|
|
|
108 |
$this->taxon = $this->verifierExistenceTaxon($numeroTaxon);
|
|
|
109 |
}
|
|
|
110 |
}
|
|
|
111 |
}
|
|
|
112 |
|
|
|
113 |
private function verifierZoom($niveauZoom) {
|
|
|
114 |
$zoom = intval($niveauZoom);
|
|
|
115 |
$limitesZoom = array(
|
|
|
116 |
'min' => intval(Config::get('carte.zoom_minimal')),
|
|
|
117 |
'max' => intval(Config::get('carte.zoom_maximal'))
|
|
|
118 |
);
|
|
|
119 |
if ($zoom < $limitesZoom['min'] || $zoom > $limitesZoom['max']) {
|
|
|
120 |
return null;
|
|
|
121 |
}
|
|
|
122 |
return $zoom;
|
|
|
123 |
}
|
|
|
124 |
|
|
|
125 |
private function verifierCoordonneesBbox($limitesBbox) {
|
|
|
126 |
$coordonnees = explode(',', $limitesBbox);
|
|
|
127 |
if (count($coordonnees) != 4) {
|
|
|
128 |
return null;
|
|
|
129 |
}
|
|
|
130 |
|
|
|
131 |
// index du tableau des coordonnees : ouest/sud/est/nord
|
|
|
132 |
$nomsIndexBbox = array("ouest", "sud", "est", "nord");
|
|
|
133 |
$bbox = array();
|
|
|
134 |
for ($i = 0; $i < count($coordonnees); $i ++) {
|
|
|
135 |
$bbox[$nomsIndexBbox[$i]] = $coordonnees[$i];
|
|
|
136 |
}
|
|
|
137 |
|
|
|
138 |
// verifier que les coordonnees de chaque bord de la bbox sont valides
|
|
|
139 |
$limites = array(
|
|
|
140 |
'ouest' => floatval(Config::get('carte.limite_ouest')),
|
|
|
141 |
'est' => floatval(Config::get('carte.limite_est')),
|
|
|
142 |
'sud' => floatval(Config::get('carte.limite_sud')),
|
|
|
143 |
'nord' => floatval(Config::get('carte.limite_nord'))
|
|
|
144 |
);
|
|
|
145 |
|
|
|
146 |
if (floatval($bbox['ouest']) >= $limites['ouest'] && floatval($bbox['ouest']) <= $limites['est']
|
|
|
147 |
&& floatval($bbox['est']) >= $limites['ouest'] && floatval($bbox['est']) <= $limites['est']
|
|
|
148 |
&& floatval($bbox['nord']) >= $limites['sud'] && floatval($bbox['nord']) <= $limites['nord']
|
|
|
149 |
&& floatval($bbox['sud']) >= $limites['sud'] && floatval($bbox['sud']) <= $limites['nord']) {
|
|
|
150 |
return $bbox;
|
|
|
151 |
}
|
|
|
152 |
return null;
|
|
|
153 |
}
|
|
|
154 |
|
|
|
155 |
private function verifierExistenceReferentiel($referentiel) {
|
|
|
156 |
if ($referentiel == '*') {
|
|
|
157 |
return '';
|
|
|
158 |
}
|
|
|
159 |
$listeReferentiels = Referentiel::listeReferentielsDisponibles();
|
|
|
160 |
foreach ($listeReferentiels as $nomReferentiel) {
|
|
|
161 |
if (strstr($nomReferentiel, $referentiel) !== false) {
|
|
|
162 |
$this->referentiel = $nomReferentiel;
|
|
|
163 |
break;
|
|
|
164 |
}
|
|
|
165 |
}
|
|
|
166 |
return null;
|
|
|
167 |
}
|
|
|
168 |
|
|
|
169 |
private function verifierExistenceTaxon($numTaxon) {
|
|
|
170 |
$listeReferentiels = Referentiel::listeReferentielsDisponibles();
|
|
|
171 |
// tester chaque referentiel jusqu'a trouver un taxon correspondant
|
|
|
172 |
// a tous les criteres demandes dans les masques
|
|
|
173 |
foreach ($listeReferentiels as $nomReferentiel) {
|
|
|
174 |
$referentiel = new Referentiel($nomReferentiel);
|
|
|
175 |
$taxon = $referentiel->recupererTaxon($numTaxon);
|
|
|
176 |
if (!is_null($taxon)) {
|
|
|
177 |
$this->referentiel = $nomReferentiel;
|
|
|
178 |
return $taxon;
|
|
|
179 |
}
|
|
|
180 |
}
|
|
|
181 |
return null;
|
|
|
182 |
}
|
|
|
183 |
|
|
|
184 |
|
|
|
185 |
|
|
|
186 |
//-------------------------------------------------------------------------------
|
|
|
187 |
// Recuperation des donnees dans la base de donnees
|
|
|
188 |
// et mise sous forme d'objet geographique en fonction du niveau de zoom
|
|
|
189 |
//-------------------------------------------------------------------------------
|
|
|
190 |
|
|
|
191 |
private function getBdd() {
|
|
|
192 |
if (!isset($this->bdd)) {
|
|
|
193 |
$this->bdd = new Bdd();
|
|
|
194 |
}
|
|
|
195 |
$this->bdd->requeter("USE tb_eflore");
|
|
|
196 |
return $this->bdd;
|
|
|
197 |
}
|
|
|
198 |
|
|
|
199 |
|
|
|
200 |
/**
|
|
|
201 |
* Recuperer les points localisant les stations d'observation
|
|
|
202 |
*/
|
|
|
203 |
private function recupererStations() {
|
|
|
204 |
$requete = 'SELECT DISTINCT lieu_station_nom AS "nom", lieu_station_latitude AS "latitude",'
|
|
|
205 |
. ' lieu_station_longitude AS "longitude", \'STATION\' AS type_site FROM sophy_tapir WHERE '
|
|
|
206 |
. $this->construireWhereDepartement() . $this->construireWhereUtilisateur()
|
|
|
207 |
. $this->construireWhereTaxon() . $this->construireWhereCoordonnees()
|
|
|
208 |
. ' GROUP BY lieu_station_latitude, lieu_station_longitude';
|
|
|
209 |
return $this->getBdd()->recupererTous($requete);
|
|
|
210 |
}
|
|
|
211 |
|
|
|
212 |
private function construireWhereTaxon() {
|
|
|
213 |
if (is_null($this->taxon)) {
|
|
|
214 |
return '';
|
|
|
215 |
}
|
|
|
216 |
$criteres = '(nom_scientifique_complet LIKE \'' . addslashes($this->taxon['nom']) . '%\'';
|
|
|
217 |
foreach ($this->sousTaxons as $sousTaxon) {
|
|
|
218 |
$criteres .= ' OR nom_scientifique_complet LIKE \'' . addslashes($sousTaxon['nom']) . '%\'';
|
|
|
219 |
}
|
|
|
220 |
$criteres .= ') AND ';
|
|
|
221 |
return $criteres;
|
|
|
222 |
}
|
|
|
223 |
|
|
|
224 |
private function construireWhereDepartement() {
|
|
|
225 |
$sql = '';
|
|
|
226 |
return $sql;
|
|
|
227 |
}
|
|
|
228 |
|
|
|
229 |
private function construireWhereUtilisateur() {
|
|
|
230 |
$sql = '';
|
|
|
231 |
if ($this->utilisateur != '') {
|
|
|
232 |
$utilisateur = $this->getBdd()->proteger($this->utilisateur);
|
|
|
233 |
$sql = " AND observateur_nom_complet = $utilisateur ";
|
|
|
234 |
}
|
|
|
235 |
return $sql;
|
|
|
236 |
}
|
|
|
237 |
|
|
|
238 |
private function construireWhereCoordonnees() {
|
|
|
239 |
$criteres = ' AND lieu_station_latitude BETWEEN ' . $this->bbox['sud'] . ' AND '
|
|
|
240 |
. $this->bbox['nord'] . ' AND ';
|
|
|
241 |
if ($this->bbox['ouest'] > $this->bbox['est']) {
|
|
|
242 |
$criteres .= '(lieu_station_longitude >= ' . $this->bbox['ouest']
|
|
|
243 |
. ' OR lieu_station_latitude <= ' . $this->bbox['est'] . ')';
|
|
|
244 |
} else {
|
|
|
245 |
$criteres .= 'lieu_station_longitude BETWEEN ' . $this->bbox['ouest'] . ' AND '
|
|
|
246 |
. $this->bbox['est'];
|
|
|
247 |
}
|
|
|
248 |
return $criteres;
|
|
|
249 |
}
|
|
|
250 |
|
|
|
251 |
|
|
|
252 |
|
|
|
253 |
|
|
|
254 |
private function nombreStations() {
|
|
|
255 |
$requete = 'SELECT zoom, Sum(nombre_sites) AS "total_points" FROM mailles_sophy'
|
|
|
256 |
. ' WHERE zoom=' . $this->zoom . ' AND limite_sud <= ' . $this->bbox['nord']
|
|
|
257 |
. ' AND limite_nord >= ' . $this->bbox['sud'];
|
|
|
258 |
if ($this->bbox['ouest'] > $this->bbox['est']) {
|
|
|
259 |
$requete .= ' AND NOT (limite_ouest >= ' . $this->bbox['ouest']
|
|
|
260 |
. ' AND limite_est <= ' . $this->bbox['est'] . ')';
|
|
|
261 |
} else {
|
|
|
262 |
$requete .= ' AND limite_ouest <= ' . $this->bbox['est']
|
|
|
263 |
. ' AND limite_est >= ' . $this->bbox['ouest'];
|
|
|
264 |
}
|
|
|
265 |
$requete .= ' GROUP BY zoom';
|
|
|
266 |
$resultat = $this->getBdd()->recuperer($requete);
|
|
|
267 |
return $resultat['total_points'];
|
|
|
268 |
}
|
|
|
269 |
|
|
|
270 |
/**
|
|
|
271 |
* Recuperer les mailles contenant des points dans l'espace de recherche de la bbox
|
|
|
272 |
*/
|
|
|
273 |
private function getMailles() {
|
|
|
274 |
$requete = 'SELECT zoom, position_latitude, position_longitude, limite_sud AS "sud",'
|
|
|
275 |
. ' limite_ouest AS "ouest", limite_nord AS "nord", limite_est AS "est", nombre_sites'
|
|
|
276 |
. ' AS "points", \'MAILLE\' AS "type_site" FROM mailles_sophy WHERE zoom=' . $this->zoom
|
|
|
277 |
. ' AND limite_sud <= ' . $this->bbox['nord'] . ' AND limite_nord >= ' . $this->bbox['sud'];
|
|
|
278 |
if ($this->bbox['ouest'] > $this->bbox['est']) {
|
|
|
279 |
$requete .= ' AND NOT (limite_ouest >= ' . $this->bbox['ouest'] . ' AND limite_est <= '
|
|
|
280 |
. $this->bbox['est'] . ')';
|
|
|
281 |
} else {
|
|
|
282 |
$requete .= ' AND limite_ouest <= ' . $this->bbox['est'] . ' AND limite_est >= '
|
|
|
283 |
. $this->bbox['ouest'];
|
|
|
284 |
}
|
|
|
285 |
return $this->getBdd()->recupererTous($requete);
|
|
|
286 |
}
|
|
|
287 |
|
|
|
288 |
}
|
|
|
289 |
|
|
|
290 |
?>
|