/**
* pass in an object - mysqli, pdo, or codeigniter database object.
* If you need another adapter, email John Loehrer <*****@*****.**> or submit your own.
* Thinking about writing an adapter for DBAL -- doctrine's data access layer.
*/
function __construct($core)
{
while ($core instanceof \Gaia\DB && $core->core() instanceof Iface) {
$core = $core->core();
}
$this->core = $core;
if ($core instanceof \PDO) {
$this->_ = DB\Closure\PDO::closures($core);
} elseif ($core instanceof \MySQLi) {
$this->_ = DB\Closure\MySQLi::closures($core);
} elseif ($core instanceof \CI_DB_driver) {
$this->_ = DB\Closure\CI::closures($core);
} else {
trigger_error('invalid db object', E_USER_ERROR);
exit(1);
}
}
public static function closures(\PDO $db)
{
$_ = array();
$lastquery = '';
$_['__tostring'] = function () use($db, &$lastquery) {
list($errstate, $errcode, $errmsg) = $db->errorInfo();
$error = $errmsg ? $errcode . ': ' . $errmsg : '';
$res = '(Gaia\\DB\\PDO object - ' . "\n" . ' [driver] => ' . $db->getAttribute(\PDO::ATTR_DRIVER_NAME) . "\n" . ' [connection] => ' . @$db->getAttribute(\PDO::ATTR_CONNECTION_STATUS) . "\n" . ' [error] => ' . $error . "\n" . ' [lastquery] => ' . $lastquery . "\n" . ')';
return $res;
};
$_['prep_args'] = $format_args = function ($query, array $args) use($db) {
if (!$args || count($args) < 1) {
return $query;
}
return \Gaia\DB\Query::prepare($query, $args, function ($v) use($db) {
return $db->quote($v);
});
};
$_['execute'] = function ($query) use($db, &$lastquery) {
try {
$lastquery = $query;
if (strlen($lastquery) > 500) {
$lastquery = substr($lastquery, 0, 485) . ' ...[trucated]';
}
$res = $db->query($query);
if (!$res) {
return FALSE;
}
$_ = array();
$_['fetch'] = function () use($res) {
return $res->fetch(\PDO::FETCH_ASSOC);
};
$_['free'] = function () use($res) {
$res->closeCursor();
};
$_['affected'] = $res->rowCount();
$_['insertid'] = $db->lastInsertId();
return new Result($_);
} catch (\Exception $e) {
return FALSE;
}
};
$_['start'] = function ($auth = NULL) use($db) {
if ($db instanceof Iface) {
return $db->start($auth);
}
return $db->beginTransaction();
};
$_['commit'] = function ($auth = NULL) use($db) {
if ($db instanceof Iface) {
return $db->commit($auth);
}
return $db->commit();
};
$_['rollback'] = function ($auth = NULL) use($db) {
if ($db instanceof Iface) {
return $db->rollback($auth);
}
return $db->rollback();
};
$_['error'] = function () use($db) {
$info = $db->errorInfo();
return $info[2];
};
$_['errorcode'] = function () use($db) {
$info = $db->errorInfo();
return $info[1];
};
$_['isa'] = function ($name) use($db) {
if ($db instanceof $name) {
return TRUE;
}
if ($name == $db->getAttribute(\PDO::ATTR_DRIVER_NAME)) {
return TRUE;
}
return FALSE;
};
$_['hash'] = function () use($db) {
if ($db instanceof Iface) {
return $db->hash();
}
return spl_object_hash($db);
};
return $_;
}
