tests/_support/Database/Migrations/2020-02-22-222222_example_migration.php
<?php namespace Tests\Support\Database\Migrations;

use CodeIgniter\Database\Migration;

class ExampleMigration extends Migration
{
	protected $DBGroup = 'tests';

	public function up()
	{
		$fields = [
			'name'       => [
				'type'       => 'varchar',
				'constraint' => 31,
			],
			'uid'        => [
				'type'       => 'varchar',
				'constraint' => 31,
			],
			'class'      => [
				'type'       => 'varchar',
				'constraint' => 63,
			],
			'icon'       => [
				'type'       => 'varchar',
				'constraint' => 31,
			],
			'summary'    => [
				'type'       => 'varchar',
				'constraint' => 255,
			],
			'created_at' => [
				'type' => 'datetime',
				'null' => true,
			],
			'updated_at' => [
				'type' => 'datetime',
				'null' => true,
			],
			'deleted_at' => [
				'type' => 'datetime',
				'null' => true,
			],
		];

		$this->forge->addField('id');
		$this->forge->addField($fields);

		$this->forge->addKey('name');
		$this->forge->addKey('uid');
		$this->forge->addKey(['deleted_at', 'id']);
		$this->forge->addKey('created_at');

		$this->forge->createTable('factories');
	}

	public function down()
	{
		$this->forge->dropTable('factories');
	}
}
