/**
* 连接缓存
* @access public
* @param string $type 缓存类型
* @param array $options 配置数组
* @return object
*/
public function connect($type = '', $options = array())
{
if (empty($type)) {
$type = Config::get('cache.data_cache_type');
}
$class = strpos($type, '\\') ? $type : 'Core\\cache\\' . ucwords(strtolower($type));
if (class_exists($class)) {
$cache = new $class($options);
} else {
exit('class :' . $class . ' not exists ');
}
// throw new \Exception('_CACHE_TYPE_INVALID_', 0,0); //TODO E(L('_CACHE_TYPE_INVALID_').':'.$type);
return $cache;
}
/**
* 数据库连接参数解析
* @static
* @access private
* @param mixed $config
* @return array
*/
private static function parseConfig($config)
{
if (!empty($config)) {
if (is_string($config)) {
return self::parseDsn($config);
}
$config = array_change_key_case($config);
$config = array('type' => $config['db_type'], 'username' => $config['db_user'], 'password' => $config['db_pwd'], 'hostname' => $config['db_host'], 'hostport' => $config['db_port'], 'database' => $config['db_name'], 'dsn' => isset($config['db.db_dsn']) ? $config['db.db_dsn'] : null, 'params' => isset($config['db.db_params']) ? $config['db.db_params'] : null, 'charset' => isset($config['db.db_charset']) ? $config['db.db_charset'] : 'utf8', 'deploy' => isset($config['db.db_deploy_type']) ? $config['db.db_deploy_type'] : 0, 'rw_separate' => isset($config['db.db_rw_separate']) ? $config['db.db_rw_separate'] : false, 'master_num' => isset($config['db.db_master_num']) ? $config['db.db_master_num'] : 1, 'slave_no' => isset($config['db.db_slave_no']) ? $config['db.db_slave_no'] : '', 'debug' => isset($config['db.db_debug']) ? $config['db.db_debug'] : APP_DEBUG, 'lite' => isset($config['db.db_lite']) ? $config['db.db_lite'] : false);
} else {
$config = array('type' => Config::get('db.db_type'), 'username' => Config::get('db.db_username'), 'password' => Config::get('db.db_password'), 'hostname' => Config::get('db.db_host'), 'hostport' => Config::get('db.db_port'), 'database' => Config::get('db.db_name'), 'dsn' => Config::get('db.db_dsn'), 'params' => Config::get('db.db_params'), 'charset' => Config::get('db.db_charset'), 'deploy' => Config::get('db.db_deploy_type'), 'rw_separate' => Config::get('db.db_rw_separate'), 'master_num' => Config::get('db.db_master_num'), 'slave_no' => Config::get('db.db_slave_no'), 'debug' => DEBUG, 'lite' => Config::get('db_lite'));
}
//dump($config);
return $config;
}
public function __construct()
{
$suffix = Config::get('url.url_suffix');
// 资源类型检测
if ('' == $suffix) {
$this->_type = 'json';
} elseif (!in_array($suffix, $this->allowType)) {
$this->_type = 'json';
}
// 请求方式检测
$method = strtolower(REQUEST_METHOD);
if (!in_array($method, $this->allowMethod)) {
$method = $this->defaultMethod;
}
$this->_method = $method;
}
protected function _initEnv()
{
//时区设置,默认为中国(北京时区)
date_default_timezone_set(Config::get('setting.timezone'));
//设置异常处理
set_exception_handler(array($this, '_exception'));
//关闭魔术变量，提高PHP运行效率
if (get_magic_quotes_runtime()) {
@set_magic_quotes_runtime(0);
}
if (DEBUG) {
ini_set('display_errors', 'on');
//正式环境关闭错误输出
if (substr(PHP_VERSION, 0, 3) == "5.3") {
error_reporting(~E_WARNING & ~E_NOTICE & E_ALL & ~E_DEPRECATED);
} else {
error_reporting(E_ALL & ~E_NOTICE & ~E_WARNING);
}
} else {
error_reporting(0);
}
}
/**
* 写入缓存
* @access public
* @param string $name 缓存变量名
* @param mixed $value 存储数据
* @param int $expire 有效时间 0为永久
* @return boolean
*/
public function set($name, $value, $expire = null)
{
//TODO N('cache_write',1);
if (is_null($expire)) {
$expire = $this->options['expire'];
}
$filename = $this->filename($name);
$data = serialize($value);
if (Config::get('data_cache_compress') && function_exists('gzcompress')) {
//数据压缩
$data = gzcompress($data, 3);
}
if (Config::get('data_cache_check')) {
//开启数据校验
$check = md5($data);
} else {
$check = '';
}
$data = "<?php\n//" . sprintf('%012d', $expire) . $check . $data . "\n?>";
$result = file_put_contents($filename, $data);
if ($result) {
if ($this->options['length'] > 0) {
// 记录缓存队列
//TODO $this->queue($name);
}
clearstatcache();
return true;
} else {
return false;
}
}
/**
* 切换当前的数据库连接
* @access public
* @param integer $linkNum 连接序号
* @param mixed $config 数据库连接信息
* @param boolean $force 强制重新连接
* @return Model
*/
public function db($linkNum = '', $config = '', $force = false)
{
if ('' === $linkNum && $this->db) {
return $this->db;
}
if (!isset($this->_db[$linkNum]) || $force) {
// 创建一个新的实例
if (!empty($config) && is_string($config) && false === strpos($config, '/')) {
// 支持读取配置参数
$config = Config::get($config);
}
$this->_db[$linkNum] = \Core\Db::getInstance($config);
} elseif (NULL === $config) {
$this->_db[$linkNum]->close();
// 关闭数据库连接
unset($this->_db[$linkNum]);
return;
}
// 切换数据库连接
$this->db = $this->_db[$linkNum];
$this->_after_db();
// 字段检测
if (!empty($this->name) && $this->autoCheckFields) {
$this->_checkTableInfo();
}
return $this;
}