https://github.com/kenjis/ci3-to-4-upgrade-helper

CodeIgniter 3 to 4 Upgrade Helper
https://github.com/kenjis/ci3-to-4-upgrade-helper

codeigniter codeigniter3 codeigniter4 hacktoberfest upgrade-helper

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CodeIgniter 3 to 4 Upgrade Helper

• Host: GitHub
• URL: https://github.com/kenjis/ci3-to-4-upgrade-helper
• Owner: kenjis
• License: mit
• Created: 2021-01-18T10:42:25.000Z (about 4 years ago)
• Default Branch: 1.x
• Last Pushed: 2024-11-06T20:22:35.000Z (3 months ago)
• Last Synced: 2025-01-25T05:05:24.889Z (13 days ago)
• Topics: codeigniter, codeigniter3, codeigniter4, hacktoberfest, upgrade-helper
• Language: PHP
• Homepage:
• Size: 525 KB
• Stars: 67
• Watchers: 7
• Forks: 22
• Open Issues: 5
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

        
# CodeIgniter 3 to 4 Upgrade Helper

This project helps you upgrade your CodeIgniter3 apps to CodeIgniter4.

- The goal is to reduce upgrade costs.

- It provides compatible interfaces for common use cases in CodeIgniter3 apps.

- It also provides compatible interfaces to test code using [ci-phpunit-test](https://github.com/kenjis/ci-phpunit-test).

- It does not aim to be 100% compatible.

- **This project is under early development.**

- **This project is under early development.**

  - We welcome Pull Requests!

## Requirements

- CodeIgniter 4.3.1 or later

  - [ci4-app-template](https://github.com/kenjis/ci4-app-template) can be used

- PHP 7.4 or later

## Sample Code

- https://github.com/kenjis/ci3-to-4-news

- https://github.com/kenjis/ci3-to-4-news/tree/main/tests/app

- https://github.com/kenjis/ci4-online-games-store

- https://github.com/kenjis/ci4-qrcode

- (Japanese) https://github.com/kenjis/ci4-tettei-apps

If you use *ci3-to-4-upgrade-helper*, You can run the following code on CodeIgniter4.

*app/Controllers/News.php*

```php

load->model('news_model');

        $this->load->helper('url_helper');

    }

    public function index()

    {

        $data['news']  = $this->news_model->get_news();

        $data['title'] = 'News archive';

        $this->load->view('templates/header', $data);

        $this->load->view('news/index', $data);

        $this->load->view('templates/footer');

    }

    public function view($slug = null)

    {

        $data['news_item'] = $this->news_model->get_news($slug);

        if (empty($data['news_item'])) {

            show_404();

        }

        $data['title'] = $data['news_item']['title'];

        $this->load->view('templates/header', $data);

        $this->load->view('news/view', $data);

        $this->load->view('templates/footer');

    }

    public function create()

    {

        $this->load->helper('form');

        $this->load->library('form_validation');

        $data['title'] = 'Create a news item';

        $this->form_validation->set_rules('title', 'Title', 'required');

        $this->form_validation->set_rules('text', 'Text', 'required');

        if ($this->form_validation->run() === false) {

            $this->load->view('templates/header', $data);

            $this->load->view('news/create');

            $this->load->view('templates/footer');

        } else {

            $this->news_model->set_news();

            $this->load->view('news/success');

        }

    }

}

```

*app/Models/News_model.php*

```php

load->database();

    }

    public function get_news($slug = false)

    {

        if ($slug === false) {

            $query = $this->db->get('news');

            return $query->result_array();

        }

        $query = $this->db->get_where('news', ['slug' => $slug]);

        return $query->row_array();

    }

    public function set_news()

    {

        $this->load->helper('url');

        $slug = url_title($this->input->post('title'), '-', true);

        $data = [

            'title' => $this->input->post('title'),

            'slug'  => $slug,

            'text'  => $this->input->post('text')

        ];

        return $this->db->insert('news', $data);

    }

}

```

*app/Views/news/create.php*

```php



    Title

    


    Text

    


    

```

## How to Upgrade from CI3 to CI4

See [How to Upgrade from CI3 to CI4](docs/HowToUpgradeFromCI3ToCI4.md).

If you have test code with [ci-phpunit-test](https://github.com/kenjis/ci-phpunit-test), see [How to Upgrade Test Code from CI3 to CI4](docs/HowToUpgradeTestCodeFromCI3ToCI4.md).

## For Development

### Installation

    composer install

### Available Commands

    composer test              // Run unit test

    composer tests             // Test and quality checks

    composer cs-fix            // Fix the coding style

    composer sa                // Run static analysys tools

    composer run-script --list // List all commands