private static function init($config)
{
if (!isset($config['dir'])) {
self::$error = '请设置备份目录';
return false;
} else {
self::$dir = $config['dir'];
//缓存备份目录
F('backupDir', self::$dir);
}
//检测目录
if (!Dir::create(self::$dir)) {
self::$error = '备份目录创建失败';
return false;
}
//数据库
if (!isset($config['database'])) {
$config['database'] = C('DB_DATABASE');
}
//分卷大小,单位kb
if (!isset($config['size'])) {
$config['size'] = 200;
}
//备份时间间隔
if (isset($config['step_time'])) {
$config['step_time'] *= 1000;
} else {
$config['step_time'] = 200;
}
//所有表信息
$tableInfo = M()->getAllTableInfo();
self::$config = array();
//没有设置表时，备份当前库所有表
if (empty($config['table'])) {
$config['table'] = array();
if (empty($tableInfo['table'])) {
return false;
}
foreach ($tableInfo['table'] as $t => $v) {
$config['table'][] = $t;
}
}
//备份成功后的跳转url
$config['url'] = isset($config['url']) ? $config['url'] : '';
foreach ($config['table'] as $table) {
self::$config[$table] = array();
//共有行数
self::$config[$table]["row"] = $tableInfo['table'][$table]['rows'];
//是否已经备份成功
self::$config[$table]['success'] = false;
//当前备份行
self::$config[$table]['current_row'] = 0;
self::$config[$table]['size'] = $config['size'] * 1000;
self::$config[$table]['url'] = $config['url'];
self::$config[$table]['step_time'] = $config['step_time'];
self::$config[$table]['database'] = $config['database'];
}
return self::update_config_file();
}
public static function backup($config = array())
{
//还原目录（每次还原后,将$_SESSION['backup_dir']删除)
$dir = Q("session.backup_dir");
//2+备份时
if ($dir && is_dir($dir)) {
self::$dir = $dir;
if (is_file(self::$dir . '/config.php')) {
self::$config = (require self::$dir . '/config.php');
} else {
if (DEBUG) {
halt('数据库备份配置文件不存在,请执行session("backup_dir",null)后重试');
} else {
return false;
}
}
} else {
//首次执行时创建配置文件
self::$dir = isset($config['dir']) ? $config['dir'] : C('DB_BACKUP');
self::init($config);
//是否备份表结构
$structure = isset($config['structure']) ? $config['structure'] : TRUE;
if ($structure) {
self::backup_structure();
}
//记录备份目录
session('backup_dir', self::$dir);
$html = "<script>setTimeout(function(){location.href='" . __METH__ . "';},500);</script>";
$html .= "<html><head><meta charset='utf-8'/></head><body><div style='text-align:center;font-size:14px;margin-top: 50px;'>正在进行备份初始化...</div></body></html>";
echo $html;
exit;
}
//执行备份
self::backup_data();
}
public static function backup($config = array())
{
//首次执行时没有备份状态
if (!Q("get.status")) {
F('backupDir', null);
}
//获取备份目录
$backupDir = F('backupDir');
//2+备份时
if (Q("get.status")) {
if (!is_dir($backupDir) && is_writable($backupDir)) {
halt('备份目录' . $backupDir . '不存在或不可写');
}
self::$dir = $backupDir;
self::$config = (require self::$dir . '/config.php');
return self::backup_data();
} else {
//首次执行时创建配置文件
self::$dir = isset($config['dir']) ? $config['dir'] : C('DB_BACKUP');
//缓存备份目录
F('backupDir', self::$dir);
//创建备份配置文件与目录
if (!self::init($config)) {
halt('备份初始化失败');
}
//是否备份表结构
$structure = isset($config['structure']) ? $config['structure'] : TRUE;
if ($structure) {
self::backup_structure();
}
//记录备份目录
$url = U(ACTION, array('status' => 'run'));
return array('status' => 'run', 'message' => '正在进行备份初始化...', 'url' => $url);
}
}
public static function backup($config = array())
{
if (!Q("get.status")) {
F('backupDir', null);
}
$backupDir = F('backupDir');
//2+备份时
if (Q("get.status") && is_dir($backupDir)) {
self::$dir = $backupDir;
self::$config = (require self::$dir . '/config.php');
return self::backup_data();
} else {
//首次执行时创建配置文件
self::$dir = isset($config['dir']) ? $config['dir'] : C('DB_BACKUP');
F('backupDir', self::$dir);
self::init($config);
//是否备份表结构
$structure = isset($config['structure']) ? $config['structure'] : TRUE;
if ($structure) {
self::backup_structure();
}
//记录备份目录
$url = U(ACTION, array('status' => 1));
return array('status' => 'run', 'message' => '正在进行备份初始化...', 'url' => $url);
}
}