using cakephp migration as standalone

Cakephp version 3 have a nice ORM. When using the cakephp/orm, it may be nice to integrate cakephp/migration than any other migration libraries, even though it uses phinx under the hood.

Lets see how we can install and integrate cakephp/migration in our application.

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composer require cakephp/migrations:dev-master

The dev-master is currently passed for we need the latest version of master branch. Before this pull request, it was having dependency on cakephp/cakephp, which is not needed.

Our migration console script

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#!/usr/bin/env php
<?php
use Cake\Cache\Cache;
use Cake\Core\Configure;
use Cake\Core\Configure\Engine\PhpConfig;
use Cake\Datasource\ConnectionManager;
use Migrations\MigrationsDispatcher;

$projectDirectory = dirname(__DIR__);
$file   = $projectDirectory . DIRECTORY_SEPARATOR . 'vendor' . DIRECTORY_SEPARATOR . 'autoload.php';
$loader = null;

if (file_exists($file)) {

    $loader = require $file;

    if (!defined('CACHE')) {
        define('CACHE', $projectDirectory . DIRECTORY_SEPARATOR . 'tmp' . DIRECTORY_SEPARATOR . 'cache' . DIRECTORY_SEPARATOR);
    }
}

if ( ! $loader) {
    throw new RuntimeException('vendor/autoload.php could not be found. Did you run `composer install`?');
}

if (!defined('PHINX_VERSION')) {
    define('PHINX_VERSION', (0 === strpos('@PHINX_VERSION@', '@PHINX_VERSION')) ? '0.6.6' : '@PHINX_VERSION@');
}

try {
    Configure::config('default', new PhpConfig($projectDirectory . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR) );
    Configure::load('app', 'default', false);
} catch (\Exception $e) {
    exit($e->getMessage() . "\n");
}

Cache::setConfig(Configure::consume('Cache'));
ConnectionManager::setConfig(Configure::consume('Datasources'));
$application = new MigrationsDispatcher(PHINX_VERSION);
$application->run();

You may notice the constant CACHE. We can get rid of constants if needed. Normally I copy portions of config/app.default.php and keep in /config/app.php file which uses some of these constants.

Once done, we can run the migration script as

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bin/cake-phinx

You may probably want to allow necessary permission for the script to execute. You can do via chmod +x bin/cake-phinx

There is another PR 312 waiting for approval. If it is merged you will get all the functionalities of https://book.cakephp.org/3.0/en/console-and-shells/orm-cache.html

PS : If you came across some errors regarding migration plugin not loaded etc. You may want to add the below code before calling MigrationsDispatcher

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<?php
Cake\Core\Plugin::load('Migrations', [
    'path' => $projectDirectory . '/vendor/cakephp/migrations/',
]);