Perform a single database migration step based on the current migration state and return the next one.
If no state is provided, the initial one will be generated.
[--state=<state-value>] : Serialized migration state.
[--porcelain] : If set, only the next state will be printed (or nothing if an error occurs).
[--complete] : Run the whole migration procedure, all steps from beginning to end. If combined with the --state argument, the migration will attempt to resume from the given state and continue until the end.
[--rollback]
: Provided the old association table still exists, bring it back and set the database layer mode back to version1.
[--stop-at-step=<step-number>] : When running the complete migration, stop before executing the step with a given number.
[--without-sql-transaction] : Don't use SQL transactions when migrating association batches.
[--only-relationships=<relationship-ids>] : Migrate only associations with given IDs. The parameter value needs to be a comma-separated list of relationship IDs. For debugging purposes only. Use with great caution! This WILL break your site.
[--yes] : Do not require user's confirmation for operations that normally require it.