class CreateAlerts < ActiveRecord::Migration[8.0]
  def change
    create_table :alerts do |t|
      t.string :category, null: false
      t.text :description
      t.string :identifier, null: false
      t.string :park_code, null: false
      t.string :title, null: false
      t.string :url
      t.timestamp :indexed_date

      t.timestamps
    end

    add_index :alerts, :identifier, unique: true
    add_index :alerts, :park_code
    add_foreign_key :alerts, :parks, column: :park_code, primary_key: :code
  end
end