add command allows a single migration to be added to the
database, if it's not already been applied.
$ php ladder.php add 1
create command takes a single parameter - the name of the
migration to create. Ladder will then create a migration file in the right
location with the next logical migration number, and open it with your specified
editor (configured in
$ php ladder.php create users
Diff-save saves the current database state to a local
store (not in the database), allowing you to make changes to the schema, then
later run the
$ php ladder.php diff-save
diff will load the previously-stored data, and compare
the database to it. Ladder will then output migration code for any columns or
indexes that have been added or removed.
Please note that at present, Ladder isn't clever enough to detect columns being renamed.
$ php ladder.php diff
migrate command will cause Ladder to check the
database for which migrations have previously been applied, and run the
up() method for any that are missing.
$ php ladder.php migrate
You can specify a migration number to stop at, allowing partial upgrade or downgrades of the database.
$ php ladder.php migrate 15
reapply command requires a single argument; the migration
to reapply. If the specified migration hasn't yet been applied, it is simply
applied and no further action is taken. If the migration has already been
applied, then it is first removed (via its
down() method), then
added back again.
$ php ladder.php reapply 15
remove command allows a single migration to be removed from
$ php ladder.php remove 15
status command shows the current status of each configured
--verbose will show which specific migrations
have not been applied. A '<' symbol shows the database is behind the migrations,
an '=' sign means you are up-to-date, and a '!' means something is wrong.
$ php ladder.php status
$ php ladder.php status --verbose
verify command will remove any reference to migrations that
don't exist from the database. This may happen when you are experimenting and
decide a certain migration just doesn't cut it. After you've deleted the migration
$ php ladder.php verify
version command simply displays the version number of
Ladder that you are currently using.
$ php ladder.php version