$db_obj = new DatabaseAccess();
$new_table_array = array();
foreach (glob(TABLE_SQL_ROOT . '/*.sql') as $sql_file) {
    $new_table_array[] = str_replace('.sql', '', str_replace(TABLE_SQL_ROOT . '/', '', $sql_file));
}
foreach ($new_table_array as $table_name) {
    $class_name = str_replace(' ', '', ucwords(str_replace('_', ' ', $table_name)));
    echo 'Create `' . $table_name . '`...';
    if (ModelHelper::importTable($table_name)) {
        echo 'ok' . PHP_EOL;
        // sync class file
        $class_path = CLASS_ROOT . '/model/' . $class_name . '.php';
        if (file_exists($class_path)) {
            echo "\tClass file exists" . PHP_EOL;
        } else {
            $column_list = $db_obj->getTableColumns($table_name);
            echo "\tCreate class file...";
            if (ModelHelper::createClassFile($table_name, $column_list)) {
                echo 'ok' . PHP_EOL;
            } else {
                echo 'fail' . PHP_EOL;
            }
        }
        // sync class god file
        $class_path = CLASS_ROOT . '/model/' . $class_name . 'God.php';
        echo "\tCreate class god file...";
        if (file_exists($class_path)) {
            echo "\tClass god file exists" . PHP_EOL;
        } else {
            $column_list = $db_obj->getTableColumns($table_name);
            if (ModelHelper::createClassGodFile($table_name)) {
 public static function exportData($table_name)
 {
     $sql_path = DATA_SQL_ROOT . '/' . $table_name . '.sql';
     $god_class_name = str_replace(' ', '', ucwords(str_replace('_', ' ', $table_name))) . 'God';
     if (!file_exists(SITE_ROOT . '/_asset/sql/')) {
         mkdir(SITE_ROOT . '/_asset/sql/');
     }
     if (!file_exists(DATA_SQL_ROOT)) {
         mkdir(DATA_SQL_ROOT);
     }
     $db_obj = new DatabaseAccess();
     $column_array = $db_obj->getTableColumns($table_name);
     $sql_content = "INSERT INTO `{$table_name}`" . PHP_EOL . "(`id`, ";
     foreach ($column_array as $column_name => $attribute) {
         $sql_content .= "`{$column_name}`, ";
     }
     // end foreach ($column_array as $column_name => $attribute)
     $sql_content .= "`is_deleted`, `create_time`, `modify_time`, `delete_time`)" . PHP_EOL . "VALUES" . PHP_EOL;
     $class_god_obj = new $god_class_name();
     $all_data = $class_god_obj->getAll();
     foreach ($all_data as $data) {
         $sql_content .= "('" . $data['id'] . "', ";
         foreach ($column_array as $column_name => $attribute) {
             $sql_content .= "'" . $data[$column_name] . "', ";
         }
         // end foreach ($column_array as $column_name => $attribute)
         $sql_content .= "'" . $data['is_deleted'] . "', " . "'" . $data['create_time'] . "', " . "'" . $data['modify_time'] . "', " . "'" . $data['delete_time'] . "'" . ")," . PHP_EOL;
     }
     // end foreach ($all_data as $data)
     return file_put_contents($sql_path, substr($sql_content, 0, -2));
 }