tabelog.rb

# generates seeds.rb from tabelog area definitions
# 
# Usage: 
# $ ruby tabelog.rb >> db/seeds.rb
#
# Premises:
# $ rails g model Prefecture name
# $ rails g model Area prefecture:references name

require 'nokogiri'
require 'open-uri'

BASE_URL = 'https://tabelog.com'
TARGET_PATH = '/sitemap'

pref_list = []
doc = Nokogiri::HTML.parse(open(BASE_URL + TARGET_PATH))
doc.css('div#arealst_sitemap a').each do |link|
  pref_list << {name: link.children.text, url: link.attributes['href'].value}
end

pref_list.each do |pref|
  puts "@p = Prefecture.create! name: '#{pref[:name]}'"
  doc = Nokogiri::HTML.parse(open(BASE_URL + pref[:url]))
  doc.css('div#arealst_sitemap a').each do |area|
    puts "Area.create! prefecture: @p, name: '#{area.children.text}'"
  end
end