/**
* classic factory method for loading a table class
* usage: $do = DB_DataObject2::factory('person')
* WARNING - this may emit a include error if the file does not exist..
* use @ to silence it (if you are sure it is acceptable)
* eg. $do = @DB_DataObject2::factory('person')
*
* table name will eventually be databasename/table
* - and allow modular dataobjects to be written..
* (this also helps proxy creation)
*
*
* @param string $1 tablename/databasename/query
* @param string $2 tablename/query
* @param string $3 bool
* @access protected
* @return DataObject|PEAR_Error|Array
*/
public static function factory()
{
if (empty(DB_DataObject2::$CONFIG)) {
DB_DataObject2::_loadConfig();
}
$args = func_get_args();
switch (count($args)) {
case 1:
if (DB_DataObject2::$CONFIG['default_database']) {
$database = DB_DataObject2::$CONFIG['default_database'];
} else {
throw new Exception('no default database set');
}
if (strpos($args[0], ' ') !== false) {
$query = $args[0];
} else {
$table = $args[0];
}
break;
case 2:
case 3:
$database = $args[0];
if (strpos($args[1], ' ') !== false) {
$query = $args[1];
if (isset($args[2]) && $args[2]) {
$array = true;
} else {
$array = false;
}
} else {
$table = $args[1];
}
break;
}
/* if ($database === '') {
throw new Exception('no support for default database right now');
} */
if (!isset($table) && !isset($query)) {
if (is_a($this, 'DB_DataObject2') && strlen($this->__table)) {
$table = $this->__table;
} else {
throw new Exception("factory did not receive a table name", DB_DATAOBJECT_ERROR_INVALIDARGS);
}
}
if (isset($table)) {
$p = isset(DB_DataObject2::$CONFIG['class_prefix']) ? DB_DataObject2::$CONFIG['class_prefix'] : '';
$class = $p . preg_replace('/[^A-Z0-9]/i', '_', ucfirst(trim($database . '_' . $table)));
$classname = $class;
$ce = class_exists($class, false);
$class = $ce ? $class : DB_DataObject2::_autoloadClass($table, $database);
// proxy = full|light
if (!$class && isset(DB_DataObject2::$CONFIG['proxy'])) {
$proxyMethod = 'getProxy' . DB_DataObject2::$CONFIG['proxy'];
class_exists('DB_DataObject2_Generator', false) ? '' : (require_once DATAOBJECT2_PATH . '/Generator.php');
if (isset(DB_DataObject2::$CONFIG['extends'])) {
$d = new DB_DataObject2::$CONFIG['extends']();
} else {
$d = new DB_DataObject2();
}
$d->__table = $table;
$d->setDatabase($database);
if (is_a($ret = $d->_connect(), 'PEAR_Error')) {
return $ret;
}
$x = new DB_DataObject2_Generator();
return $x->{$proxyMethod}($d->_database, $table);
}
if (!$class) {
throw new Exception("DB_DataObject2: factory could not find class {$classname} from {$table}", DB_DATAOBJECT_ERROR_INVALIDCONFIG);
}
return new $class();
} elseif (isset($query)) {
if (isset(DB_DataObject2::$CONFIG['extends'])) {
$d = new DB_DataObject2::$CONFIG['extends']();
} else {
$d = new DB_DataObject2();
}
$d->setDatabase($database);
$d->query($query);
if ($array) {
return $d->fetchAllArray();
} else {
return $d;
}
} else {
throw new Exception('DB_DataObject2: dont know how to handle no $table and no $query in factory', DB_DATAOBJECT_ERROR_INVALIDARGS);
}
}
