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<?php
include '../includes/sql.class.php';
class Model {
protected static $table = '' ;
public static $members = Array() ;
function __construct() { // Constructeur - recupere les champs de la db -> variable d'instance
if (! sql::init()) {
die("Erreur") ;
}
$members = Array() ;
$SQL = 'SELECT COLUMN_NAME AS nom FROM INFORMATION_SCHEMA.COLUMNS WHERE table_name = "'.self::$table.'"' ;
$result = mysql_query($SQL);
while ( $row = mysql_fetch_array($result)){
//if ($row['nom'] != 'created') {
array_push(self::$members, $row['nom']) ;
$this->$row['nom']= NULL ;
//}
}
sql::close() ;
}
static function getById($id) { // Retourne l'instance correspondant à l'id - Retourne NULL si pas d'occurence
sql::init();
$sql = "SELECT * from ".self::$table." WHERE id = $id LIMIT 0,1" ;
$results = mysql_query($sql);
if (mysql_num_rows($results) > 0) {
while ( $row = mysql_fetch_array($results)){
$object = new self() ;
$object->load($row);
return $object ;
}
}
else return NULL ;
sql::close() ;
}
private function load($row) { // Methode privée de chargement db vers variables d'instance
foreach (self::$members as $value) {
$this->$value = $row[$value] ;
}
}
function save() { // Ajoute l'instance dans la db
sql::init();
$fields = '' ;
$values = '' ;
foreach (self::$members as $value) {
$fields .= $value.',' ;
$values .= "'".$this->$value."',";
}
$fields = substr($fields, 0, strlen($fields)-1) ;
$values = substr($values, 0, strlen($values)-1) ;
$sql = "INSERT INTO ".self::$table." ($fields) VALUES ($values)";
mysql_query($sql) or die (mysql_error());
sql::close();
}
function update() { // Mets a jour la ligne dans la db , si aucun parametre : mise a jour de tous les parametres
sql::init();
$pairs = '' ;
if (func_num_args() == 0 ) {
foreach (self::$members as $member) {
$pairs .= $member.'="'.$this->$member.'",';
}
}
else $pairs = func_get_arg(0) ;
$pairs = substr($pairs, 0, strlen($pairs)-1) ;
$sql = "UPDATE ".self::$table." SET $pairs WHERE id = $this->id";
mysql_query($sql) or die (mysql_error());
sql::close();
}
function del() { // suprrime l'instance
sql::init();
mysql_query("DELETE FROM ".self::$table." WHERE id='$this->id'") or die (mysql_error());
unset($this);
sql::close();
}
static function find() { // Retourne un array d'instances
sql::init();
$rtr_array = Array();
if (func_num_args() == 0 ) {
$sql = "SELECT * FROM ".self::$table ;
}
else $sql = func_get_arg(0) ;
$results = mysql_query($sql) or die (mysql_error());
if (mysql_num_rows($results) > 0) {
while ( $row = mysql_fetch_array($results)){
$object = new self() ;
$object->load($row);
array_push($rtr_array, $object) ;
}
}
return $rtr_array ;
sql::close();
}
public function getMembers() {
print_r(self::$members) ;
}
}
class User extends Model {
protected static $table = 'news' ;
// self::$table = 'news' ; marche pas non plus
// parent::$table = 'news' ; marche pas non plus
}
$user = new User ;
$user->getMembers(); // pour tester
?> |
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