Migrations

A Migraw migration represents a database change with an up() and down() operation.

<?php

use Eril\Migraw\Migration;
use Eril\Migraw\Sql\SqlStatement;

return new class extends Migration
{
    public function up(): string|array|SqlStatement
    {
        // Apply the change.
    }

    public function down(): string|array|SqlStatement
    {
        // Reverse the change.
    }
};

Migraw supports two main styles:

• Raw SQL — write SQL directly with $this->raw().
• Fluent — use Migraw's SQL statement helpers.

The default generated style is controlled by:

'template' => 'raw',

Use population migrations when the migration exists to insert stable application data rather than change the schema.

See:

• Raw SQL
• Fluent
• Population