class

Ralph::Migrations::Migrator

Inherits Reference / Object

Constants

DEFAULT_MIGRATIONS_DIR = "./db/migrations"

Default migrations directory

Constructors

new(database : Database::Backend, migrations_dir : String = DEFAULT_MIGRATIONS_DIR, output : IO = STDOUT)

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Class methods

create(name : String, dir : String = DEFAULT_MIGRATIONS_DIR) : String

Create a new migration file

Returns the path to the created file.

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Instance methods

all_migrations

Get all available migrations (from filesystem)

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applied_migrations

Get applied migrations (in applied order)

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applied_versions

Get all applied migration versions

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current_version

Get current (latest applied) version

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database

The database backend

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migrate

Run all pending migrations

Returns the number of migrations executed.

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migrations_dir

Path to migrations directory

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output

Output for status messages

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output=(output : IO)

Output for status messages

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pending_migrations

Get pending migrations (not yet applied)

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rollback(steps : Int32 = 1) : Int32

Roll back the last applied migration

Returns true if a migration was rolled back.

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rollback_all

Roll back all migrations

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status

Get migration status as version => applied?

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