Method: ActiveRecord::Tasks::DatabaseTasks#migrate

Defined in:

activerecord/lib/active_record/tasks/database_tasks.rb

#migrate(version = nil) ⇒ Object

# File 'activerecord/lib/active_record/tasks/database_tasks.rb', line 256

def migrate(version = nil)
  scope = ENV["SCOPE"]
  verbose_was, Migration.verbose = Migration.verbose, verbose?

  check_target_version

  migration_connection_pool.migration_context.migrate(target_version) do |migration|
    if version.blank?
      scope.blank? || scope == migration.scope
    else
      migration.version == version
    end
  end.tap do |migrations_ran|
    Migration.write("No migrations ran. (using #{scope} scope)") if scope.present? && migrations_ran.empty?
  end

  migration_connection_pool.schema_cache.clear!
ensure
  Migration.verbose = verbose_was
end