/**
* 设置返回结果
* @author 欧远宁
* @param array $data 返回的数据
* @param string $type 返回的类型，默认为json。其他还有：tpl,jsonp,amf
* @param any $para 对应的参数
* @example
* //返回json<br/>
* $this->_ret(<br/>
* array(<br/>
* 'msg'=>'hi',<br/>
* 'data'=>array('aa','bb');<br/>
* )<br/>
* );<br/><br/>
*
* //根据模版返回<br/>
* $this->_ret(array('name'=>'aaaa'), 'tpl', 'index');<br/>
*
* //直接下载
* $this->_ret(array(
* 'name'=>'毕业证号导入模板.xls',
* 'path'=>OP.'static/excel/import_grad_num.xls',
* 'type'=>'application/vnd.ms-excel;charset=gb2312'
* ),'down');
*/
protected final function _ret($data = array(), $type = 'json', $para = null)
{
inject::cmd_after($this->method, $data, $type, $para);
if ($type == 'json') {
view::json($data);
} else {
if ($type == 'jsonp') {
view::jsonp($para, $data);
} else {
if ($type == 'tpl') {
view::tpl($para, $data);
} else {
if ($type == 'amf') {
view::amf($data);
} else {
if ($type == 'excel') {
view::excel($para['name'], $para['head'], $data);
} else {
if ($type == 'down') {
if (isset($data['type'])) {
view::down($data['name'], $data['path'], $data['type']);
} else {
view::down($data['name'], $data['path']);
}
} else {
if ($type == 'redirect') {
view::redirect($data);
}
}
}
}
}
}
}
}
/**
* dao的构造函数
* @author 欧远宁
* @param string $mdl 应用名
* @param string $tbl 表对象名
*/
public function __construct($mdl, $tbl)
{
$this->schema = $GLOBALS['cfg'][$mdl]['schema'][$tbl];
$this->sql = $GLOBALS['cfg'][$mdl]['sql'];
$suf = inject::split($mdl, $tbl);
//我们用版本号作为缓存key的前缀，以便当数据结构变更的时候，将对象缓存自动过期
$this->ver = $this->schema['ver'] . '.';
$this->mdl = $mdl . $suf['db'];
$this->tbl = $tbl . $suf['tbl'];
$this->key = $tbl . '_id';
$this->key_list = $tbl . '_list';
$this->db = mysql::get_ins($mdl, $suf['db']);
if ($GLOBALS['cfg']['cfg']['dao_cache']) {
$this->cache = cache::get_ins($mdl);
} else {
$this->schema['cache'] = -1;
}
}
/**
* 根据参数，执行业务逻辑，返回结果
* @author 欧远宁
*/
public static function execute()
{
$data = null;
try {
self::inc();
$data = self::get_data();
$len = count($data['cmd']);
if ($len < 2) {
throw new err('cmd error');
} elseif ($len == 2) {
$data['cmd'][2] = 'index';
}
$mdl = $data['cmd'][0];
$cls_name = $data['cmd'][1];
$method = $data['cmd'][2];
//得到session
$cfg_sess = $GLOBALS['cfg']['cfg']['session'];
session::$secret = $cfg_sess['secret'];
session::$to_cookie = $cfg_sess['to_cookie'];
if (isset($data['para']['_s'])) {
session::get_session($data['para']['_s']);
unset($data['para']['_s']);
} else {
if (session::$to_cookie) {
//保存到cookie中
session::get_session($data['para']);
}
}
$cls_path = 'cmd\\' . $mdl . '\\' . $cls_name;
$method_path = $mdl . '.' . $cls_name . '.' . $method;
$cls = new $cls_path($method_path);
inject::cmd_before($method_path, $data['para']);
unset($data['para']['_nowsid']);
call_user_func(array($cls, $method), $data['para']);
self::commit();
} catch (err $e) {
//优先捕获自定义异常
self::rollback();
if (isset($data['para']['r'])) {
} else {
$ret = array('_c' => $e->getCode(), '_m' => $e->getMessage(), 'rows' => array(), 'total' => 0);
view::json($ret);
}
} catch (Exception $ex) {
//捕获未预估的异常
self::rollback();
if (isset($data['para']['r'])) {
} else {
$ret = array('_c' => $ex->getCode(), '_m' => $ex->getMessage(), 'rows' => array(), 'total' => 0);
view::json($ret);
}
}
}
