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<?php |
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namespace Ubiquity\db; |
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use Ubiquity\cache\database\DbCache; |
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use Ubiquity\exceptions\CacheException; |
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/** |
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* Classe d'accès aux Bases de données encapsulant un objet PDO |
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* @author heron |
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* @version 1.0.0.3 |
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* @package db |
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* |
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*/ |
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class Database { |
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private $dbType; |
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private $serverName; |
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private $port; |
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private $dbName; |
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private $user; |
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private $password; |
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private $pdoObject; |
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private $statements=[ ]; |
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private $cache; |
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private $options; |
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/** |
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* Constructeur |
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* @param string $dbName |
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* @param string $serverName |
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* @param string $port |
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* @param string $user |
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* @param string $password |
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* @param array $options |
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* @param boolean|string $cache |
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*/ |
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public function __construct($dbType,$dbName, $serverName="localhost", $port="3306", $user="root", $password="", $options=[],$cache=false) { |
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$this->dbType=$dbType; |
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$this->dbName=$dbName; |
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$this->serverName=$serverName; |
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$this->port=$port; |
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$this->user=$user; |
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$this->password=$password; |
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$this->options=$options; |
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if ($cache !== false) { |
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if(\is_callable($cache)){ |
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$this->cache=$cache(); |
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}else{ |
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if(\class_exists($cache)){ |
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$this->cache=new $cache(); |
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}else{ |
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throw new CacheException($cache." is not a valid value for database cache"); |
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} |
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} |
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} |
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} |
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/** |
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* Réalise la connexion à la base de données |
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*/ |
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public function connect() { |
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$this->pdoObject=new \PDO($this->dbType.':host=' . $this->serverName . ';dbname=' . $this->dbName . ';charset=UTF8;port:' . $this->port, $this->user, $this->password,$this->options); |
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$this->pdoObject->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION); |
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} |
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/** |
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* Exécute l'instruction SQL passée en paramètre et retourne un statement |
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* @param string $sql |
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* @return PDOStatement |
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*/ |
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public function query($sql) { |
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return $this->pdoObject->query($sql); |
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} |
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public function prepareAndExecute($tableName, $condition,$fields,$useCache=NULL) { |
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$cache=(DbCache::$active && $useCache !== false) || (!DbCache::$active && $useCache === true); |
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$result=false; |
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if ($cache) { |
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$result=$this->cache->fetch($tableName, $condition); |
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} |
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if ($result === false) { |
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$fields=SqlUtils::getFieldList($fields); |
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$statement=$this->getStatement("SELECT {$fields} FROM " . $tableName . $condition); |
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$statement->execute(); |
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$result=$statement->fetchAll(); |
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$statement->closeCursor(); |
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if ($cache) { |
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$this->cache->store($tableName, $condition, $result); |
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} |
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} |
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return $result; |
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} |
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private function getStatement($sql) { |
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if (!isset($this->statements[$sql])) { |
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$this->statements[$sql]=$this->pdoObject->prepare($sql); |
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$this->statements[$sql]->setFetchMode(\PDO::FETCH_ASSOC); |
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} |
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return $this->statements[$sql]; |
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} |
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/** |
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* Exécute l'instruction sql $sql de mise à jour (INSERT, UPDATE ou DELETE) |
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* @return le nombre d'enregistrements affectés |
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*/ |
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public function execute($sql) { |
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return $this->pdoObject->exec($sql); |
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} |
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public function getServerName() { |
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return $this->serverName; |
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} |
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public function setServerName($serverName) { |
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$this->serverName=$serverName; |
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} |
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/** |
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* Prépare l'instruction $sql pour son exécution |
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* @param String $sql |
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* @return PDOStatement |
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*/ |
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public function prepareStatement($sql) { |
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return $this->pdoObject->prepare($sql); |
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} |
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/** |
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* Sets $value to $parameter |
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* @param PDOStatement $statement |
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* @param String $parameter |
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* @param mixed $value |
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* @return boolean |
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*/ |
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public function bindValueFromStatement(\PDOStatement $statement, $parameter, $value) { |
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return $statement->bindValue(":" . $parameter, $value); |
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} |
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/** |
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* Returns the last insert id |
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* @return integer |
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*/ |
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public function lastInserId() { |
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return $this->pdoObject->lastInsertId(); |
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} |
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public function getTablesName() { |
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$sql='SHOW TABLES'; |
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$query=$this->pdoObject->query($sql); |
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return $query->fetchAll(\PDO::FETCH_COLUMN); |
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} |
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/** |
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* Retourne le nombre d'enregistrements de $tableName respectant la condition éventuellement passée en paramètre |
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* @param string $tableName |
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* @param string $condition Partie suivant le WHERE d'une instruction SQL |
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*/ |
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public function count($tableName, $condition='') { |
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if ($condition != '') |
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$condition=" WHERE " . $condition; |
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return $this->query("SELECT COUNT(*) FROM " . $tableName . $condition)->fetchColumn(); |
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} |
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public function isConnected(){ |
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return ($this->pdoObject!==null && $this->pdoObject instanceof \PDO); |
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} |
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public function setDbType($dbType) { |
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$this->dbType=$dbType; |
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return $this; |
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} |
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public function getPort() { |
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return $this->port; |
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} |
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public function getDbName() { |
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return $this->dbName; |
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} |
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public function getUser() { |
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return $this->user; |
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} |
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public function getPdoObject() { |
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return $this->pdoObject; |
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} |
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} |
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phpMv /
ubiquity
