public function actionInit()
{
\Yii::$app->response->format = Response::FORMAT_JSON;
$tables = \Yii::$app->request->post('tables');
$path = \Yii::$app->controller->module->params['DATA_BACKUP_PATH'];
if (!is_dir($path)) {
mkdir($path, 0755, true);
}
//读取备份配置
$config = array('path' => realpath($path) . DIRECTORY_SEPARATOR, 'part' => \Yii::$app->controller->module->params['DATA_BACKUP_PART_SIZE'], 'compress' => \Yii::$app->controller->module->params['DATA_BACKUP_COMPRESS'], 'level' => \Yii::$app->controller->module->params['DATA_BACKUP_COMPRESS_LEVEL']);
//检查是否有正在执行的任务
$lock = "{$config['path']}backup.lock";
if (is_file($lock)) {
return ['status' => 0, 'info' => '检测到有一个备份任务正在执行，请稍后再试！'];
} else {
//创建锁文件
file_put_contents($lock, time());
}
//检查备份目录是否可写
if (!is_writeable($config['path'])) {
return ['status' => 0, 'info' => '备份目录不存在或不可写，请检查后重试！'];
}
\Yii::$app->session->set('backup_config', $config);
//生成备份文件信息
$file = array('name' => date('Ymd-His', time()), 'part' => 1);
\Yii::$app->session->set('backup_file', $file);
//缓存要备份的表
\Yii::$app->session->set('backup_tables', $tables);
//创建备份文件
$Database = new Database($file, $config);
if (false !== $Database->create()) {
$tab = ['id' => 0, 'start' => 0];
return ['status' => 1, 'info' => '初始化成功！', 'tables' => $tables, 'tab' => $tab];
} else {
return ['status' => 0, 'info' => '初始化失败，备份文件创建失败！'];
}
}
