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| <?php
/**
* Axiom: a lightweight PHP framework
*
* @copyright Copyright 2010-2011, Benjamin Delespierre (http://bdelespierre.fr)
* @licence http://www.gnu.org/licenses/lgpl.html Lesser General Public Licence version 3
*/
/**
* Model Base Class
*
* @abstract
* @author Delespierre
* @package core
* @subpackage Model
*/
abstract class Model {
/**
* Model key id
* @var string
*/
protected $_id_key = 'id';
/**
* Model's data
* @var array
*/
protected $_data = array();
/**
* Statements cache
* @var array
*/
protected $_statements = array();
/**
* Initialize a model statement (part of CRUD)
* @abstract
* @param string $statement
* @return PDOStatement
*/
abstract protected function _init ($statement);
/**
* Default constructor
* @param mixed $id
* @throws RuntimeException
*/
public function __construct ($id = null) {
if ($id !== null && $id !== false && !$this->find($id))
throw new RuntimeException("Cannot instanciate model", 2009);
}
/**
* __sleep overloading
* @return array
*/
public function __sleep () {
return array('_id_key', '_data');
}
/**
* Getter
* @param string $key
* @return mixed
*/
public function __get ($key) {
return isset($this->_data[$key]) ? $this->_data[$key] : null;
}
/**
* Setter
* @param string $key
* @param mixed $value
* @return void
*/
public function __set ($key, $value) {
$this->_data[$key] = $value;
}
/**
* __isset overloading
* @param string $key
* @return boolean
*/
public function __isset ($key) {
return isset($this->_data[$key]);
}
/**
* Get internal data
* @internal
* @return array
*/
public function getData () {
return $this->_data;
}
/**
* Retrieve method
* Will return false in case of error
* @param mixed $id
* @return Model
*/
public function find ($id) {
if (!$this->_init("retrieve"))
throw new RuntimeException("Cannot initialize " . __METHOD__, 2010);
if ($this->_statements['retrieve']->execute(array(":{$this->_id_key}" => $id))) {
if ($this->_statements['retrieve']->rowCount()) {
$this->_data = $this->_statements['retrieve']->fetch(PDO::FETCH_ASSOC);
return $this;
}
}
return false;
}
/**
* Create methode
* Will return false in case of error
* @param array $data
* @throws RuntimeException
* @return Model
*/
public function create ($data) {
if (!$this->_init("create"))
throw new RuntimeException("Cannot initialize " . __METHOD__, 2011);
if ($this->_statements['create']->execute(array_keys_prefix($data, ':'))) {
$id = Database::lastInsertId();
return $this->find($id);
}
return false;
}
/**
* Update method
* @throws RuntimeException
* @return boolean
*/
public function update ($data = array()) {
if (!$this->_init("update"))
throw new RuntimeException("Cannot initialize " . __METHOD__, 2012);
if (!empty($this->_data)) {
$inputs = array_merge($this->_data, array_intersect_key($data, $this->_data));
return $this->_statements['update']->execute(array_keys_prefix($inputs, ':'));
}
return false;
}
/**
* Delete method
* @throws RuntimeException
* @return boolean
*/
public function delete () {
if (!$this->_init("delete"))
throw new RuntimeException("Cannot initialize " . __METHOD__, 2013);
if (!empty($this->_data))
return $this->_statements['delete']->execute(array(":{$this->_id_key}" => $this->_data[$this->_id_key]));
return false;
}
} |
[POO] Public ou Protected
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