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DataObject.php
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DataObject.php
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<?php
class KISS_DataObject {
private $table;
private $data = array();
//public $property = array();
public static $objects = array();
public $object_id = 0;
function __construct($table, $keys =array()) {
$this->object_id = uniqid();
$schema = KISS_Data_DataSet_Schema_XML::init();
$this->table = $table;
if (count($keys) > 0) {
$this->_select($keys);
}
$values = array_values($keys);
KISS_DataObject::$objects[$table][$values[0]] = $this;
}
function __get($pKey) {
$schema = KISS_Data_DataSet_Schema_XML::init();
//¼ì²éÍâ¼ü
$table = $this->table;
$foreign_keys = &$schema[$this->table]['keys']['foreign'];
if (array_key_exists($pKey,$schema) && array_key_exists($pKey, $foreign_keys)) {
if (!isset($this->data[$pKey]) || is_null($this->data[$pKey])) {
$code = "\$this->data['{$pKey}'] = $pKey::find(\$this->get_column('{$foreign_keys[$pKey]['column']}'));";
eval($code);
}
return $this->data[$pKey];
}
elseif (array_key_exists($pKey,$schema) && array_key_exists($this->table, $schema[$pKey]['keys']['foreign'])) {
if (!isset($this->data[$pKey]) || is_null($this->data[$pKey])) {
$results = KISS_SQLObject::getFetchQuery($pKey,array($schema[$pKey]['keys']['foreign'][$this->table]['column'] => $this->get_column($schema[$pKey]['keys']['foreign'][$this->table]['column'])));
foreach ($results as $result) {
$code = "\$this->data['{$pKey}'][] = {$pKey}::find('{$result['student_id']}');";
eval($code);
}
}
return $this->data[$pKey];
} elseif (array_key_exists($pKey, $this->data)) {
return $this->data[$pKey];
}
}
private function has_column($pKey) {
$schema = KISS_Data_DataSet_Schema_XML::init();
return array_key_exists($pKey, $schema[$this->table]['columns']);
}
private function set_column($pKey, $pValue) {
if ($this->has_column($pKey)) {
$this->data[$pKey] = $pValue;
}
}
public function get_columns() {
$schema = KISS_Data_DataSet_Schema_XML::init();
return $schema[$this->table]['columns'];
}
public function get_keys() {
$schema = KISS_Data_DataSet_Schema_XML::init();
return $schema[$this->table]['keys'];
}
private function get_column($pKey) {
if ($this->has_column($pKey)) {
return $this->data[$pKey];
}
}
private function _select($keys) {
$result = KISS_SQLObject::getFetchQuery($this->table, $keys);
$this->_fill($result[0]);
}
public function _save() {
return KISS_SQLObject::_save($this);
}
public function _delete() {
if (KISS_SQLObject::_delete($this)) {
$this->_reset();
return true;
}
return false;
}
public function _reset() {
}
private function _fill($pData) {
foreach ($pData as $key=>$value){
$this->set_column($key, $value);
}
}
function __sleep() {
$this->property = array();
$schema = KISS_Data_DataSet_Schema_XML::init();
foreach ($schema[$this->table]['columns'] as $key => $value) {
$this->property[$key] = $this->data[$key];
}
$this->property['_table'] = $this->table;
return array('property');
}
function __wakeup() {
$schema = KISS_Data_DataSet_Schema_XML::init();
foreach ($schema[$this->property['_table']]['columns'] as $key => $value) {
$this->data[$key] = $this->property[$key];
}
$this->table = $this->property['_table'];
$this->property = array();
}
static function find($pTable, $pPrimaryKey) {
if (isset(KISS_DataObject::$objects[$pTable][$pPrimaryKey]))
return KISS_DataObject::$objects[$pTable][$pPrimaryKey];
else
return new $pTable($pPrimaryKey);
}
}
?>