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Explain how migrations work in FuelPHP. - Code Stap
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Explain how migrations work in FuelPHP.

Explain how migrations work in FuelPHP.

Answer: In FuelPHP, migrations are a way to manage changes to the database schema over time. They allow developers to create, modify, and version database tables and columns through code rather than directly manipulating the database.

Key Points on How Migrations Work in FuelPHP:

1. Command Line Tool: Migrations are typically run using the command line tool provided by FuelPHP, executing commands like `php oil refine migrate` to apply migrations.

2. Migration Files: Each migration is defined in a PHP file that specifies the changes to be applied. These files are usually stored in the `migrations` directory.

3. Version Control: Each migration file is timestamped or versioned, allowing FuelPHP to keep track of which migrations have been applied to the database.

4. Up/Down Methods: Each migration class contains two main methods: `up()` to define the changes made to the database (such as creating tables or adding columns), and `down()` to undo those changes.

5. Migration Rollback: Developers can roll back migrations to revert the database to a previous state using commands like `php oil refine migrate:rollback`.

6. Schema Management: By utilizing migrations, developers can easily collaborate on projects and maintain consistency across various environments (development, testing, production).

Overall, FuelPHP’s migration system provides a structured and repeatable way to manage database schemas throughout the application’s lifecycle.

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