class CreateScripts < ActiveRecord::Migration[8.0]
  def up
    create_table :scripts, id: { type: 'CHAR(4)' }, primary_key: :code do |t|
      t.string :name, null: false
      t.datetime :deprecated_at, index: true
      t.datetime :created_at, null: false

      t.check_constraint "REGEXP_LIKE(code, '^[A-Z][a-z]{3}$', 'c')",
                         name: 'scripts_code_check'
    end

    execute <<~SQL
      INSERT INTO
        scripts(code, name, created_at)
      VALUES
        ('Jpan', '漢字、仮名文字およびラテン文字', #{ connection.quote Time.current })
    SQL
  end

  def down
    drop_table :scripts
  end
end