1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
<?php
/**
* MINZ - Copyright 2011 Marien Fressinaud
* Sous licence AGPL3 <http://www.gnu.org/licenses/>
*/
/**
* La classe Model_sql représente le modèle interragissant avec les bases de données
* Seul la connexion MySQL est prise en charge pour le moment
*/
class Minz_ModelPdo {
/**
* Partage la connexion à la base de données entre toutes les instances.
*/
public static $useSharedBd = true;
private static $sharedBd = null;
private static $sharedPrefix;
private static $has_transaction = false;
private static $sharedCurrentUser;
protected static $sharedDbType;
/**
* $bd variable représentant la base de données
*/
protected $bd;
protected $current_user;
protected $prefix;
public function dbType() {
return self::$sharedDbType;
}
/**
* Créé la connexion à la base de données à l'aide des variables
* HOST, BASE, USER et PASS définies dans le fichier de configuration
*/
public function __construct($currentUser = null) {
if (self::$useSharedBd && self::$sharedBd != null && $currentUser === null) {
$this->bd = self::$sharedBd;
$this->prefix = self::$sharedPrefix;
$this->current_user = self::$sharedCurrentUser;
return;
}
$conf = Minz_Configuration::get('system');
$db = $conf->db;
if ($currentUser === null) {
$currentUser = Minz_Session::param('currentUser', '_');
}
$this->current_user = $currentUser;
self::$sharedCurrentUser = $currentUser;
try {
$type = $db['type'];
if ($type === 'mysql') {
$string = 'mysql:host=' . $db['host']
. ';dbname=' . $db['base']
. ';charset=utf8';
$driver_options = array(
PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES utf8',
);
$this->prefix = $db['prefix'] . $currentUser . '_';
} elseif ($type === 'sqlite') {
$string = 'sqlite:' . join_path(DATA_PATH, 'users', $currentUser, 'db.sqlite');
$driver_options = array(
//PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
);
$this->prefix = '';
} else {
throw new Minz_PDOConnectionException(
'Invalid database type!',
$db['user'], Minz_Exception::ERROR
);
}
self::$sharedDbType = $type;
self::$sharedPrefix = $this->prefix;
$this->bd = new MinzPDO(
$string,
$db['user'],
$db['password'],
$driver_options
);
if ($type === 'sqlite') {
$this->bd->exec('PRAGMA foreign_keys = ON;');
}
self::$sharedBd = $this->bd;
} catch (Exception $e) {
throw new Minz_PDOConnectionException(
$string,
$db['user'], Minz_Exception::ERROR
);
}
}
public function beginTransaction() {
$this->bd->beginTransaction();
self::$has_transaction = true;
}
public function hasTransaction() {
return self::$has_transaction;
}
public function commit() {
$this->bd->commit();
self::$has_transaction = false;
}
public function rollBack() {
$this->bd->rollBack();
self::$has_transaction = false;
}
public static function clean() {
self::$sharedBd = null;
self::$sharedPrefix = '';
}
}
class MinzPDO extends PDO {
private static function check($statement) {
if (preg_match('/^(?:UPDATE|INSERT|DELETE)/i', $statement)) {
invalidateHttpCache();
}
}
public function prepare($statement, $driver_options = array()) {
MinzPDO::check($statement);
return parent::prepare($statement, $driver_options);
}
public function exec($statement) {
MinzPDO::check($statement);
return parent::exec($statement);
}
}
|
