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Creating migrations

Migrations are used to create and/or edit the database structure. To generate a new migration file, use this command:

php vendor/bin/doctrine-migrations migrations:generate

It creates a PHP file like this one /data/doctrine/migrations/Version20220606131835.php that can then be edited in the IDE. You can add new queries in:

  • public function up - these are executed when the migration is run.
  • public function down - these are optional queries that undo the above changes.

Example

This example creates a new column named test. Add this in public function up:

$this->addSql('ALTER TABLE users ADD test VARCHAR(255) NOT NULL');

And its opposite in public function down:

$this->addSql('ALTER TABLE users DROP test');