Module: Mack::Database::Migrations

Defined in:
lib/mack-data_mapper/database_migrations.rb

Class Method Summary collapse

Class Method Details

.abort_if_pending_migrations ⇒ Object 



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# File 'lib/mack-data_mapper/database_migrations.rb', line 25

def self.abort_if_pending_migrations
  migration_files.each { |mig| load mig }
  ::DataMapper::MigrationRunner.migrations.each do |mig|
    raise Mack::Errors::UnrunMigrations.new(mig.name) if mig.send("needs_up?")
  end
  ::DataMapper::MigrationRunner.migrations.clear
end

.migrate ⇒ Object

Migrates the database to the latest version



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# File 'lib/mack-data_mapper/database_migrations.rb', line 8

def self.migrate
  # Mack::Database.establish_connection
  ::DataMapper::MigrationRunner.reset!
  migration_files.each { |mig| load mig }
  ::DataMapper::MigrationRunner.migrate_up!
end

.rollback(step = 1) ⇒ Object

Rolls back the database by the specified number of steps. Default is 1



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# File 'lib/mack-data_mapper/database_migrations.rb', line 16

def self.rollback(step = 1)
  ::DataMapper::MigrationRunner.reset!
  migration_files.each { |mig| load mig }
  migrations = ::DataMapper::MigrationRunner.migrations.sort.reverse
  step.times do |i|
    migrations[migrations.size - (i + 1)].perform_down
  end
end