/**
* @brief 根据操作类型创建并返回dbo对象，
* @param string $type 操作类型
* @return PDO
*/
private function createDB($type = '')
{
if ($type == 'SELECT' or $type == 'SHOW') {
if (self::$wdb != null) {
return self::$wdb;
} else {
if (self::$rdb != null) {
return self::$rdb;
} else {
try {
$db_config = tool::getConfig('database');
$rdb_config = $db_config['slave'];
$rdb_config[] = $db_config['master'];
$num = rand(0, count($rdb_config) - 1);
self::$rdb = new \PDO('mysql:dbname=' . $rdb_config[$num]['database'] . ';host=' . $rdb_config[$num]['host'] . ';charset=utf8', $rdb_config[$num]['user'], $rdb_config[$num]['password']);
self::$rdb->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
} catch (PDOException $e) {
exit($e->getMessage());
}
return self::$rdb;
}
}
} else {
if (self::$wdb != null) {
return self::$wdb;
} else {
try {
$db_config = tool::getConfig(array('database', 'master'));
self::$wdb = new \PDO('mysql:dbname=' . $db_config['database'] . ';host=' . $db_config['host'] . ';charset=utf8', $db_config['user'], $db_config['password']);
self::$wdb->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
} catch (PDOException $e) {
exit($e->getMessage());
}
return self::$wdb;
}
}
}
/**
*给定指定的模块、控制器、方法和参数列表，倒序查找application.int配置文件中的路由信息，找到匹配的路由并根据该路由规则生成url,
* 目前只匹配重写和正则路由，没有匹配到的返回静态路由的结果
* @param string $controller 控制器名称
* @param string $action 方法名
* @param string $module 模块名
* @param array $params 传递的参数
* @return string
*/
private static function getRoute($controller, $action, $module = 'index', $params = array())
{
$routes = array_reverse(tool::getConfig('routes'));
//遍历路由规则配置信息
foreach ($routes as $key => $val) {
if (!isset($val['route'])) {
continue;
}
$route = $val['route'];
$m = isset($route['module']) && $route['module'] != '' ? strtolower($route['module']) : 'index';
$c = isset($route['controller']) && $route['controller'] != '' ? strtolower($route['controller']) : 'index';
$a = isset($route['action']) && $route['action'] != '' ? strtolower($route['action']) : 'index';
//匹配到了参数中模块、控制器、方法的路由规则，如果规则中模块、控制器、动作带有：,则是动态匹配，表示匹配成功
//只匹配regex和rewrite两种
if (($m == $module || strpos($m, ':') !== false) && ($c == $controller || strpos($c, ':') !== false) && ($a == $action || strpos($a, ':') !== false)) {
//路由匹配成功
switch ($val['type']) {
case 'rewrite':
//重写路由规则
$match = $val['match'];
$star = strpos($match, '*') !== false ? 1 : 0;
if (strpos($m, ':') !== false) {
$match = str_replace($m, $module, $match);
}
if (strpos($c, ':') !== false) {
$match = str_replace($c, $controller, $match);
}
if (strpos($a, ':') !== false) {
$match = str_replace($a, $action, $match);
}
if ($star) {
$match = preg_replace('/\\/\\*[\\/]?/', '', $match);
foreach ($params as $k => $v) {
if (strpos($match, ':' . $k) !== false) {
$match = str_replace(':' . $k, $v, $match);
} else {
$match .= '/' . $k . '/' . $v;
}
}
} else {
foreach ($params as $k => $v) {
if (strpos($match, ':' . $k) !== false) {
$match = str_replace(':' . $k, $v, $match);
}
}
}
return $match;
break;
case 'regex':
$match = $val['match'];
$match = preg_replace('/^#\\^?/', '', $match);
//去掉正则路由match的前导#和^
$match = preg_replace('/\\$?#$/', '', $match);
//去掉最后。。。
//将match中的捕获子组(即圆括号中)替换为‘:’map名称
foreach ($val['map'] as $v) {
$match = preg_replace(array('/\\([^()]*\\)/'), ':' . $v, $match, 1);
}
//动态模块、控制器、方法的替换
if (strpos($m, ':') !== false) {
$match = str_replace($m, $module, $match);
}
if (strpos($c, ':') !== false) {
$match = str_replace($c, $controller, $match);
}
if (strpos($a, ':') !== false) {
$match = str_replace($a, $action, $match);
}
//去掉其他正则中的[]?,[]+,...,转义的字符去掉前置\
$match = preg_replace('/[\\[|\\]\\*|\\]\\+|\\]\\?]/', '', $match);
$match = str_replace('\\/', '/', $match);
$match = str_replace('\\?', '?', $match);
//参数替换
foreach ($params as $k => $v) {
if (strpos($match, ':' . $k) !== false) {
$match = str_replace(':' . $k, $v, $match);
}
}
return $match;
break;
}
}
}
//没有匹配到则用yaf_route_static静态路由，/module/controller/action/parms的模式
$match = $module == 'index' ? '/' : '/' . $module;
$match .= $controller . '/' . $action;
foreach ($params as $key => $val) {
$match .= '/' . $key . '/' . $val;
}
return $match;
}
