class CreateParks < ActiveRecord::Migration[8.0]
  def change
    create_table :parks do |t|
      t.string :code, null: false
      t.string :name, null: false
      t.text :states, null: false
      t.json :properties, null: false, default: {}

      t.timestamps
    end

    add_index :parks, :code, unique: true
  end
end