rails · rails/ActiveRecord--IrreversibleMigration
ActiveRecord--IrreversibleMigration
ActiveRecord::IrreversibleMigration
Raised when rolling back a migration whose change method cannot be automatically inverted.
References
In this namespace
← previous ActiveRecord--InvalidForeignKey ActiveRecord::InvalidForeignKey next → ActiveRecord--MigrationError ActiveRecord::MigrationError
ActionController--ParameterMissing ActionController--RoutingError ActiveRecord--ConnectionNotEstablished ActiveRecord--ConnectionTimeoutError ActiveRecord--InvalidForeignKey ActiveRecord--IrreversibleMigration ActiveRecord--MigrationError ActiveRecord--PendingMigrationError ActiveRecord--ReadOnlyRecord ActiveRecord--RecordInvalid ActiveRecord--RecordNotDestroyed