CI_Migration

class CI_Migration

current()

Returns:	TRUE if no migrations are found, current version string on success, FALSE on failure
Return type:	mixed

Migrates up to the current version (whatever is set for $config['migration_version'] in application/config/migration.php).

error_string()

Returns:	Error messages
Return type:	string

This returns a string of errors that were detected while performing a migration.

find_migrations()

Returns:	An array of migration files
Return type:	array

An array of migration filenames are returned that are found in the migration_path property.

latest()

Returns:	Current version string on success, FALSE on failure
Return type:	mixed

This works much the same way as current() but instead of looking for the $config['migration_version'] the Migration class will use the very newest migration found in the filesystem.

version($target_version)

Parameters:	$target_version (mixed) – Migration version to process
Returns:	TRUE if no migrations are found, current version string on success, FALSE on failure
Return type:	mixed

Version can be used to roll back changes or step forwards programmatically to specific versions. It works just like current() but ignores $config['migration_version'].

$this->migration->version(5);