agenda-libre-ruby/db/migrate/20131114103121_create_active_admin_comments.rb

# Add comments for administrators to internally share about any item
class CreateActiveAdminComments < ActiveRecord::Migration
  # rubocop:disable Metrics/MethodLength
  def self.up
    create_table :active_admin_comments do |t|
      t.string :namespace
      t.text :body
      t.string :resource_id,   null: false
      t.string :resource_type, null: false
      t.references :author, polymorphic: true
      t.timestamps
    end
    add_index :active_admin_comments, %i[namespace]
    add_index :active_admin_comments, %i[author_type author_id]
    add_index :active_admin_comments, %i[resource_type resource_id]
  end
  # rubocop:enable Metrics/MethodLength

  def self.down
    drop_table :active_admin_comments
  end
end