class RemoveClassificationsAndClassifiers < ActiveRecord::Migration[4.2]
  def self.up
    drop_table 'classifications'
    drop_table 'classifiers'
  end

  def self.down
    create_table 'classifications', force: true do |t|
      t.integer  'owner_id'
      t.integer  'target_id'
      t.datetime 'created_at'
      t.datetime 'updated_at'
    end

    add_index 'classifications', ['owner_id', 'target_id'], name: 'ix_classifications_fk'

    create_table 'classifiers', force: true do |t|
      t.string   'title'
      t.string   'description'
      t.string   'notation'
      t.datetime 'created_at'
      t.datetime 'updated_at'
    end

    add_index 'classifiers', ['notation'], name: 'ix_classifiers_on_notation'
  end
end