/**
* @brief 设置数据库读写分离并且执行SQL语句
* @param string $sql 要执行的SQL语句
* @return int or bool SQL语句执行的结果
*/
public function query($sql)
{
//取得SQL类型
self::$sqlType = $this->getSqlType($sql);
//读方式
if (self::$sqlType == 'select' || self::$sqlType == 'show') {
if (self::$rTarget == NULL || !is_resource(self::$rTarget)) {
//多数据库支持并且读写分离
if (isset(IWeb::$app->config['DB']['read'])) {
//获取ip地址
$ip = IClient::getIP();
$this->connect(IHash::hash(IWeb::$app->config['DB']['read'], $ip));
} else {
$this->connect(IWeb::$app->config['DB']);
}
self::$rTarget = $this->linkRes;
}
} else {
if (self::$wTarget == NULL || !is_resource(self::$wTarget)) {
//多数据库支持并且读写分离
if (isset(IWeb::$app->config['DB']['write'])) {
$this->connect(IWeb::$app->config['DB']['write']);
} else {
$this->connect(IWeb::$app->config['DB']);
}
self::$wTarget = $this->linkRes;
}
}
if (is_resource($this->linkRes)) {
return $this->doSql($sql);
} else {
return false;
}
}
/**
* @brief 设置数据库读写分离并且执行SQL语句
* @param string $sql 要执行的SQL语句
* @return int or bool SQL语句执行的结果
*/
public function query($sql)
{
//取得SQL类型
self::$sqlType = $this->getSqlType($sql);
//读方式
if (self::$sqlType == 'select' || self::$sqlType == 'show') {
if (self::$rTarget == NULL) {
//多数据库支持并且读写分离
if (isset(IWeb::$app->config['DB']['read'])) {
//获取ip地址
$ip = IClient::getIP();
self::$rTarget = $this->connect(IHash::hash(IWeb::$app->config['DB']['read'], $ip));
} else {
self::$rTarget = $this->connect(IWeb::$app->config['DB']);
}
}
$this->switchLink("r");
$result = $this->doSql($sql);
if ($result === false) {
throw new IException("{$sql}\n -- " . $this->linkRes->error, 1000);
return false;
}
return $result;
} else {
if (self::$wTarget == NULL) {
//多数据库支持并且读写分离
if (isset(IWeb::$app->config['DB']['write'])) {
self::$wTarget = $this->connect(IWeb::$app->config['DB']['write']);
} else {
self::$wTarget = $this->connect(IWeb::$app->config['DB']);
}
//写链接启用事务
$this->switchLink("w");
$this->autoCommit();
}
$this->switchLink("w");
$result = $this->doSql($sql);
if ($result === false) {
$errorMsg = $this->linkRes->error;
$this->rollback();
throw new IException("{$sql}\n -- " . $errorMsg, 1000);
return false;
}
return $result;
}
}
/**
* @brief 得到session安全码
* @return String session安全码
*/
private static function sessionId()
{
$level = self::getLevel();
if ($level == 'none') {
return '';
} else {
if ($level == 'normal') {
return md5(IClient::getIP());
}
}
return md5(IClient::getIP() . $_SERVER["HTTP_USER_AGENT"]);
}
