class CreateThings < ActiveRecord::Migration
  def change
    create_table :things do |t|
      t.timestamps
      t.string :name
      t.decimal :lat, null: false, precision: 16, scale: 14
      t.decimal :lng, null: false, precision: 17, scale: 14
      t.integer :city_id
      t.integer :user_id
    end

    add_index :things, :city_id, unique: true
  end
end