class CQL::Migrator

Reference < Object

The CQL::Migrator class is responsible for managing database migrations. It provides methods to apply, roll back, and redo migrations, as well as list applied and pending migrations.

Example: Creating a Migrator

migrator = CQL::Migrator.new(schema)

Methods

def up

Applies pending migrations.

• @return [Nil]

Example:

migrator.up

def down

Rolls back the last migration.

• @return [Nil]

Example:

migrator.down

def redo

Reapplies the last migration by rolling it back and applying it again.

• @return [Nil]

Example:

migrator.redo

def applied

Lists the migrations that have already been applied.

• @return [Array(String)] The list of applied migrations.

Example:

migrator.applied

def pending

Lists the migrations that have not yet been applied.

• @return [Array(String)] The list of pending migrations.

Example:

migrator.pending