WebSVN – eFlore/Projets.eflore-projets – Diff – /trunk/services/bibliotheque/RequetesAssemblage.php


<?php
 
/** FONCTIONS D'ASSEMBLAGE DE REQUETE 
* 
* @package eflore-projets
* @author Mathilde SALTHUN-LASSALLE <mathilde@tela-botanica.org>
* @author Delphine CAUQUIL <delphine@tela-botanica.org>
* @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 1.0
* @copyright 1999-2011 Tela Botanica (accueil@tela-botanica.org)
 */
 
class RequetesAssemblage {
	
	private $table;
	private $total_resultat;
	private $Bdd;
	private $condition;
	
	public function __construct(BDD $bdd) {
		$this->Bdd = $bdd;
	}
 
	public function getTotal_resultat() {
		return $this->total_resultat;
	}
	
	public  function retournerRequeteJointure($requete_jointure) {
		$jointure = '';
		if ($requete_jointure !== "") {
			foreach ($requete_jointure as $req_j) {
				$jointure .= ' '.$req_j['type'].' '.$req_j['table'].' ON '
				.implode(' AND', $req_j['on']);
			}
		}
		return $jointure;
	}
 
	public function assemblerLaRequete(Requete $requete_param) {
		$this->table = $requete_param->table;
		$requete_jointure = $this->retournerRequeteJointure($requete_param->requete_jointure);
		$this->condition = $this->retournerRequeteCondition($requete_param->requete_condition);
		$limites = $this->delimiterResultatsRequete($requete_param->limite_besoin, $requete_param->limite_requete);
		$requete = 	' SELECT '.$requete_param->champs_recherches.' FROM '.$requete_param->table.' '
		.$requete_jointure .' '.$this->condition.' '.$limites;
		return $requete;
	}
 
	public function retournerRequeteCondition($requete_condition) {
		$condition = '';
		if ($requete_condition !== "") {
			$condition = ' WHERE '.implode(' AND ', $requete_condition);
		}
		return $condition;
	}
 
	public function calculerTotalResultat() {
		$requete = 'SELECT count(*) as nombre FROM '.$this->table.' '.$this->condition;
		$res = $this->Bdd->recuperer($requete);
		if ($res) {
			$this->total_resultat = $res['nombre'];
		} else {
			$this->total_resultat = 0;
			$e = 'Données introuvables dans la base';
			throw new Exception($e, RestServeur::HTTP_CODE_RESSOURCE_INTROUVABLE);
		}
	}
 
	public function delimiterResultatsRequete($limite_besoin, $limite_requete) {
		$this->calculerTotalResultat();
		$requete_limite = '';
		if ($limite_besoin)  {
			if (($limite_requete['depart'] <=  $this->total_resultat) ){
				if (($limite_requete['limite'] + $limite_requete['depart'] )
				< $this->total_resultat  ){
				$requete_limite = 'LIMIT '.$limite_requete['depart'].', '
				.$limite_requete['limite'];
				}
			} else {
				$e = "Erreur : la valeur pour le paramètre navigation.départ est supérieure".
				" au nombre total de résultats.";
				throw new Exception($e, RestServeur::HTTP_CODE_RESSOURCE_INTROUVABLE);
			}
		}
		return $requete_limite;
	}
}
?>

Subversion Repositories eFlore/Projets.eflore-projets

(root)/trunk/services/bibliotheque/RequetesAssemblage.php – Rev 528 → 532

Rev 528		Rev 532
1	`<?php`	1	`<?php`
2		2
3	`/** FONCTIONS D'ASSEMBLAGE DE REQUETE`	3	`/** FONCTIONS D'ASSEMBLAGE DE REQUETE`
4	`*`	4	`*`
5	`* @package eflore-projets`	5	`* @package eflore-projets`
6	`* @author Mathilde SALTHUN-LASSALLE <mathilde@tela-botanica.org>`	6	`* @author Mathilde SALTHUN-LASSALLE <mathilde@tela-botanica.org>`
7	`* @author Delphine CAUQUIL <delphine@tela-botanica.org>`	7	`* @author Delphine CAUQUIL <delphine@tela-botanica.org>`
8	`* @author Jean-Pascal MILCENT <jpm@tela-botanica.org>`	8	`* @author Jean-Pascal MILCENT <jpm@tela-botanica.org>`
9	`* @license GPL v3 <http://www.gnu.org/licenses/gpl.txt>`	9	`* @license GPL v3 <http://www.gnu.org/licenses/gpl.txt>`
10	`* @license CECILL v2 <http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt>`	10	`* @license CECILL v2 <http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt>`
11	`* @version 1.0`	11	`* @version 1.0`
12	`* @copyright 1999-2011 Tela Botanica (accueil@tela-botanica.org)`	12	`* @copyright 1999-2011 Tela Botanica (accueil@tela-botanica.org)`
13	`*/`	13	`*/`
14		14
15	`class RequetesAssemblage {`	15	`class RequetesAssemblage {`
16		16
17	`private $table;`	17	`private $table;`
18	`private $total_resultat;`	18	`private $total_resultat;`
19	`private $Bdd;`	19	`private $Bdd;`
20	`private $condition;`	20	`private $condition;`
21		21
22	`public function __construct(BDD $bdd) {`	22	`public function __construct(BDD $bdd) {`
23	`$this->Bdd = $bdd;`	23	`$this->Bdd = $bdd;`
24	`}`	24	`}`
25		25
26	`public function getTotal_resultat() {`	26	`public function getTotal_resultat() {`
27	`return $this->total_resultat;`	27	`return $this->total_resultat;`
28	`}`	28	`}`
29		29
30	`public function retournerRequeteJointure($requete_jointure) {`	30	`public function retournerRequeteJointure($requete_jointure) {`
31	`$jointure = '';`	31	`$jointure = '';`
32	`if ($requete_jointure !== "") {`	32	`if ($requete_jointure !== "") {`
33	`foreach ($requete_jointure as $req_j) {`	33	`foreach ($requete_jointure as $req_j) {`
34	`$jointure .= ' '.$req_j['type'].' '.$req_j['table'].' ON '`	34	`$jointure .= ' '.$req_j['type'].' '.$req_j['table'].' ON '`
35	`.implode(' AND', $req_j['on']);`	35	`.implode(' AND', $req_j['on']);`
36	`}`	36	`}`
37	`}`	37	`}`
38	`return $jointure;`	38	`return $jointure;`
39	`}`	39	`}`
40		40
41	`public function assemblerLaRequete(Requete $requete_param) {`	41	`public function assemblerLaRequete(Requete $requete_param) {`
42	`$this->table = $requete_param->table;`	42	`$this->table = $requete_param->table;`
43	`$requete_jointure = $this->retournerRequeteJointure($requete_param->requete_jointure);`	43	`$requete_jointure = $this->retournerRequeteJointure($requete_param->requete_jointure);`
44	`$this->condition = $this->retournerRequeteCondition($requete_param->requete_condition);`	44	`$this->condition = $this->retournerRequeteCondition($requete_param->requete_condition);`
45	`$limites = $this->delimiterResultatsRequete($requete_param->limite_besoin, $requete_param->limite_requete);`	45	`$limites = $this->delimiterResultatsRequete($requete_param->limite_besoin, $requete_param->limite_requete);`
46	`$requete = ' SELECT '.$requete_param->champs_recherches.' FROM '.$requete_param->table.' '`	46	`$requete = ' SELECT '.$requete_param->champs_recherches.' FROM '.$requete_param->table.' '`
47	`.$requete_jointure .' '.$this->condition.' '.$limites;`	47	`.$requete_jointure .' '.$this->condition.' '.$limites;`
48	`return $requete;`	48	`return $requete;`
49	`}`	49	`}`
50		50
51	`public function retournerRequeteCondition($requete_condition) {`	51	`public function retournerRequeteCondition($requete_condition) {`
52	`$condition = '';`	52	`$condition = '';`
53	`if ($requete_condition !== "") {`	53	`if ($requete_condition !== "") {`
54	`$condition = ' WHERE '.implode(' AND ', $requete_condition);`	54	`$condition = ' WHERE '.implode(' AND ', $requete_condition);`
55	`}`	55	`}`
56	`return $condition;`	56	`return $condition;`
57	`}`	57	`}`
58		58
59	`public function calculerTotalResultat() {`	59	`public function calculerTotalResultat() {`
60	`$requete = 'SELECT count(*) as nombre FROM '.$this->table.' '.$this->condition;`	60	`$requete = 'SELECT count(*) as nombre FROM '.$this->table.' '.$this->condition;`
61	`$res = $this->Bdd->recuperer($requete);`	61	`$res = $this->Bdd->recuperer($requete);`
62	`if ($res) {`	62	`if ($res) {`
63	`$this->total_resultat = $res['nombre'];`	63	`$this->total_resultat = $res['nombre'];`
64	`} else {`	64	`} else {`
65	`$this->total_resultat = 0;`	65	`$this->total_resultat = 0;`
66	`$e = 'Données introuvables dans la base';`	66	`$e = 'Données introuvables dans la base';`
67	`throw new Exception($e, RestServeur::HTTP_CODE_RESSOURCE_INTROUVABLE);`	67	`throw new Exception($e, RestServeur::HTTP_CODE_RESSOURCE_INTROUVABLE);`
68	`}`	68	`}`
69	`}`	69	`}`
70		70
71	`public function delimiterResultatsRequete($limite_besoin, $limite_requete) {`	71	`public function delimiterResultatsRequete($limite_besoin, $limite_requete) {`
72	`$this->calculerTotalResultat();`	72	`$this->calculerTotalResultat();`
73	`$requete_limite = '';`	73	`$requete_limite = '';`
74	`if ($limite_besoin) {`	74	`if ($limite_besoin) {`
75	`if (($limite_requete['depart'] < $this->total_resultat) ){`	75	`if (($limite_requete['depart'] <= $this->total_resultat) ){`
76	`if (($limite_requete['limite'] + $limite_requete['depart'] )`	76	`if (($limite_requete['limite'] + $limite_requete['depart'] )`
77	`< $this->total_resultat ){`	77	`< $this->total_resultat ){`
78	`$requete_limite = 'LIMIT '.$limite_requete['depart'].', '`	78	`$requete_limite = 'LIMIT '.$limite_requete['depart'].', '`
79	`.$limite_requete['limite'];`	79	`.$limite_requete['limite'];`
80	`}`	80	`}`
81	`} else {`	81	`} else {`
82	`$e = "Erreur : la valeur pour le paramètre navigation.départ est supérieure".`	82	`$e = "Erreur : la valeur pour le paramètre navigation.départ est supérieure".`
83	`" au nombre total de résultats.";`	83	`" au nombre total de résultats.";`
84	`throw new Exception($e, RestServeur::HTTP_CODE_RESSOURCE_INTROUVABLE);`	84	`throw new Exception($e, RestServeur::HTTP_CODE_RESSOURCE_INTROUVABLE);`
85	`}`	85	`}`
86	`}`	86	`}`
87	`return $requete_limite;`	87	`return $requete_limite;`
88	`}`	88	`}`
89	`}`	89	`}`
90	`?>`	90	`?>`