CodeIgniter 仅迁移已创建的迁移表

现在我正在尝试使用迁移到我的 Codeigniter 项目。

我在 上创建了一些迁移文件application/migrations，并Migrate.php作为控制器在我尝试迁移表时创建表。

我将提供迁移文件的示例Migrate.php以及该线程中的内容。

当我运行迁移时出现问题，我使用 cli 运行php index.php migrate current。它显示migration success，但仅migrations创建了表。有人和我有同样的问题吗？

Migrate.php

<?php
if (!defined('BASEPATH')) exit('No direct script access allowed');
class Migrate extends CI_Controller {

    function __construct()
    {
        parent::__construct();
        if(! $this->input->is_cli_request()) {
            show_404();
            exit;
        }
        $this->load->library('migration');
    }

    function current()
    {
        if ($this->migration->current()) {
            log_message('error', 'Migration Success.');
            echo "Migration Success";
        } else {
            log_message('error', $this->migration->error_string());
            echo $this->migration->error_string();
        }
    }

    function rollback($version)
    {
        if ($this->migration->version($version)) {
            log_message('error', 'Migration Success.');
            echo "Migration Success";
        } else {
            log_message('error', $this->migration->error_string());
            echo $this->migration->error_string();
        }
    }

    function latest()
    {
        if ($this->migration->latest()) {
            log_message('error', 'Migration Success.');
            echo "Migration Success";
        } else {
            log_message('error', $this->migration->error_string());
            echo $this->migration->error_string();
        }
    }

}

迁移文件示例。

<?php

defined('BASEPATH') OR exit('No direct script access allowed');

class Migration_Add_Facility_Types extends CI_Migration {

    public function up()
    {
        $this->dbforge->add_field(array(
            'id' => array(
                'type' => 'INT',
                'constraint' => 5,
                'unsigned' => TRUE,
                'auto_increment' => TRUE
            ),
            'name' => array(
                'type' => 'VARCHAR',
                'constraint' => '100',
            ),
        ));
        $this->dbforge->add_key('id', TRUE);
        $this->dbforge->create_table('facility_types');
    }

    public function down()
    {
        $this->dbforge->drop_table('facility_types');
    }
}