AddMigration adds a migration to the update registry which will be called when Update() is run.

NewMigrator creates a migrator for updating and installing Verbis.

ErrDBConnectionMessage is used as an error message when no database connection could be established.

ErrTableNotFoundMessage is used as an error message when a table is missing from the installation.

MySQLDriver driver is represented under DB_DRIVER for MySQL.

PostgresDriver driver is represented under DB_DRIVER for postgres.

ErrCallBackMismatch is returned by AddMigration when there has been a mismatch in the amount of callbacks passed.

ErrTableNotFound is returned by the driver if there are tables missing from the installation.

Tables define the current database tables within Verbis.

Migration represents a singular migration for a single version.

Migrator is the core updater for Verbis, it takes in a version and migrates the migrations up to the major version.

CallBackFn is the function type when migrations are running up or Down.

MigrationRegistry contains a slice of pointers to each migration.