/**
* 执行sql并返回结果或结果对象
*
* @param string $sql
* @param mixed $bind
* @access public
* @return Onion\Storage\DB\IResult
*/
public function execute($sql, $bind = null)
{
if ($bind === null) {
$bind = array();
}
if (!is_array($bind)) {
$bind = array_slice(func_get_args(), 1);
}
try {
$this->connect();
$sth = $sql instanceof \PDOStatement ? $sql : $this->dbh->prepare($sql);
if ($sth === false) {
return false;
}
if (!$sth->execute($bind)) {
return false;
}
} catch (\PDOException $ex) {
$error = new StorageError($ex->getMessage(), $ex->errorInfo[1], $ex, array('sql' => (string) $sql, 'bind' => $bind, 'native_code' => $ex->errorInfo[0]));
fire_event($this, EXECUTE_EXCEPTION_EVENT, $error);
throw $error;
}
fire_event($this, EXECUTE_EVENT, array($sql, $bind));
if (DEBUG) {
$log = 'Execute SQL: ' . $sql;
if ($bind) {
$log .= ' with ' . json_encode($bind);
}
\Onion\logger('storage')->debug($log);
}
$sth->setFetchMode(\PDO::FETCH_ASSOC);
return $sth;
}
function __on_exception($exception, $terminate = true)
{
try {
\Onion\logger()->exception($exception, 8);
} catch (\Exception $ex) {
}
$code = $exception instanceof HttpError ? $exception->getCode() : 500;
if (PHP_SAPI == 'cli') {
if (!$terminate) {
return array($code, array());
}
echo $exception;
die(1);
}
$header = $exception instanceof HttpError ? $exception->getHeader() : array(Response::httpStatus(500));
if (DEBUG) {
$message = strip_tags($exception->getMessage());
if (strpos($message, "\n") !== false) {
$lines = explode("\n", $message);
$message = $lines[0];
}
$header[] = 'X-Exception-Message: ' . $message;
$header[] = 'X-Exception-Code: ' . $exception->getCode();
foreach (explode("\n", $exception->getTraceAsString()) as $index => $line) {
$header[] = sprintf('X-Exception-Trace-%d: %s', $index, $line);
}
}
if ($terminate && !headers_sent()) {
foreach ($header as $h) {
header($h);
}
}
return array($code, $header);
}
/**
* 分发请求到对应的controller
* 执行并返回结果
*
* @param string $url
* @param array $params
* @access public
* @return mixed
*/
public function dispatch($url, array $params = array())
{
if (DEBUG) {
$logger = \Onion\logger('mvc');
}
$url = strtolower(rtrim($url, '/'));
if (DEBUG) {
$logger->info('Request url:' . req()->requestUri());
}
list($class, $args) = $this->match($url);
if (DEBUG) {
$logger->debug('Dispatch url to controller: ' . $class);
}
if (!$class || !class_exists($class)) {
throw HttpError::page_not_found(array('controller' => $class));
}
if ($params) {
$args = array_merge($args, $params);
}
fire_event($this, BEFORE_DISPATCH_EVENT, array($url, $class, $args));
$controller = new $class();
if (method_exists($controller, '__before_run')) {
// 如果__before_run返回了内容，就直接完成动作
// 可以在这里进行某些阻断操作
// 正常的内容不应该通过这里输出
if ($resp = call_user_func_array(array($controller, '__before_run'), $args)) {
return $resp instanceof Response ? $resp : resp()->setBody($resp);
}
}
$request = req();
$method = $request->method();
// head方法除了不输出数据之外，和get方法没有区别
if ($method == 'HEAD') {
$method = 'GET';
}
if (DEBUG) {
$log = 'Call controller [' . $class . '] method [' . $method . ']';
if ($args) {
$log .= ' with ' . json_encode($args);
}
$logger->info($log);
}
// 执行controller动作并返回结果
// 不检查method是否存在，用is_callable()
// 保留__call()重载方法的方式
if (!is_callable(array($controller, $method))) {
throw HttpError::method_not_allowed(array('url' => $url, 'class' => $class));
}
$resp = call_user_func_array(array($controller, $method), $args);
// 这里有机会对输出结果进行进一步处理
if (method_exists($controller, '__after_run')) {
$controller->__after_run($resp);
}
fire_event($this, AFTER_DISPATCH_EVENT, array($url, $class, $args, $resp));
return $resp instanceof Response ? $resp : resp()->setBody($resp);
}
