How to create one:one key in migration in Yii2, but how to create one:many key?

Question

MySQL

Actually the whole question in the topic.
Thanks in advance.

Answer 1

$this->createIndex('index_name', 'user_pa', 'user_id');
$this->addForeignKey('idx_fk_name', 'user_pa', 'user_id', 'user', 'id', 'CASCADE', 'NO ACTION');
create an index, add a key.