README

DB-Migration is a library allows to run migrations on SQLite databases with ease.

Goals, when developing the library:

• allow initializing library without knowing database connection details upfront
• allow creating new migration file without knowing database connection details upfront
• allow using several databases in parallel
• being framework agnostic

Usage

Initialization

use ConsoleHelpers\DatabaseMigration\MigrationManager;
use ConsoleHelpers\DatabaseMigration\PhpMigrationRunner;
use ConsoleHelpers\DatabaseMigration\SqlMigrationRunner;
use Pimple\Container;

// 1. Create migration manager instance.
$migration_manager = new MigrationManager(
	'/path/to/migrations', // Directory containing migrations.
	new Container() // Anything implementing "ArrayAccess".
);

// 2. Register migration runners.
$migration_manager->registerMigrationRunner(new SqlMigrationRunner());
$migration_manager->registerMigrationRunner(new PhpMigrationRunner());

Creating new migration

The following code will create YYYYMMDD_HHMM_name.ext migration file in configured migration folder and return it's name.

use ConsoleHelpers\DatabaseMigration\MigrationManager;

$migration_name = $migration_manager->createMigration(
	'example_migration', // any valid filename
	'sql' // 'php' or 'sql' (comes from migration runner)
);

As a result:

• the /path/to/migrations/20160519_2155_example_migration.sql file would be created
• the 20160519_2155_example_migration.sql would be returned to $migration_name variable

Migration Templates

SQL:

Empty file.

PHP:

<?php
use ConsoleHelpers\DatabaseMigration\MigrationContext;

return function (MigrationContext $context) {
	// Write PHP code here.
};

Running migrations

use Aura\Sql\ExtendedPdo;
use ConsoleHelpers\DatabaseMigration\MigrationManager;
use ConsoleHelpers\DatabaseMigration\MigrationContext;
use Pimple\Container;

// 1. Create database connection.
$database = new ExtendedPdo('sqlite:/path/to/database.sqlite');

// 2. Run migrations.
$migration_manager->runMigrations(
	// Context consists of the database and container.
	new MigrationContext($database)
);

Installation

Execute this command to add dependencies:

php composer.phar require console-helpers/db-migration:^0.1

Requirements

• Aura.Sql

Contributing

See CONTRIBUTING file.

License

DB-Migration is released under the BSD-3-Clause License. See the bundled LICENSE file for details.