Module: Jipcode::JapanPost

Defined in:
lib/jipcode/japan_post.rb

Constant Summary collapse

ZIPCODE_URLS = 
{
  general: 'https://www.post.japanpost.jp/zipcode/dl/kogaki/zip/ken_all.zip'.freeze,
  company: 'https://www.post.japanpost.jp/zipcode/dl/jigyosyo/zip/jigyosyo.zip'.freeze
}.freeze
ZIPCODE_FILES = 
{
  general: 'KEN_ALL.CSV'.freeze,
  company: 'JIGYOSYO.CSV'.freeze
}.freeze

Class Method Summary collapse

Class Method Details

.download_all ⇒ Object 



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# File 'lib/jipcode/japan_post.rb', line 26

def download_all
  ZIPCODE_URLS.each do |type, url|
    url = URI.parse(url)
    http = Net::HTTP.new(url.host, 443)
    http.use_ssl = true
    res = http.get(url.path)
    File.open("zipcode/#{type}.zip", 'wb') { |f| f.write(res.body) }
  end
end

.import_all ⇒ Object 



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# File 'lib/jipcode/japan_post.rb', line 36

def import_all
  File.rename(ZIPCODE_PATH, 'zipcode/previous') if File.exist?(ZIPCODE_PATH)
  Dir.mkdir(ZIPCODE_PATH)

  # 事業所のデータには都道府県、市区町村、町域、番地のカナが与えられていない
  # そのため、郵便番号情報から、都道府県、市区町村、町域のカナ読みを持っていきたいため、hashに保存しておく
  kana_dict = Hash.new ""

  zipcodes = unpack(:general)
  import(zipcodes) do |row|
    zipcode    = row[2] # 郵便番号
    prefecture = row[6] # 都道府県
    city       = row[7] # 市区町村
    town       = row[8] # 町域

    prefecture_kana = row[3] # 都道府県カナ
    city_kana       = row[4] # 市区町村カナ
    town_kana       = row[5] # 町域カナ

    kana_dict[prefecture] = prefecture_kana
    kana_dict[city]       = city_kana

    [zipcode, prefecture, city, town, prefecture_kana, city_kana, town_kana]
  end

  zipcodes = unpack(:company)
  import(zipcodes) do |row|
    zipcode    = row[7] # 郵便番号
    prefecture = row[3] # 都道府県
    city       = row[4] # 市区町村
    town       = row[5] + row[6] # 町域 + 番地

    prefecture_kana = kana_dict[prefecture]
    city_kana       = kana_dict[city]
    town_kana       = "" # [MEMO] 事業所データの町域番地に対してのカナは提供しない

    [zipcode, prefecture, city, town, prefecture_kana, city_kana, town_kana]
  end

  FileUtils.rm_rf('zipcode/previous')
rescue => e
  FileUtils.rm_rf(ZIPCODE_PATH)
  File.rename('zipcode/previous', ZIPCODE_PATH) if File.exist?('zipcode/previous')
  raise e, '日本郵便のデータを読み込めませんでした。'
end

.update ⇒ Object 



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# File 'lib/jipcode/japan_post.rb', line 18

def update
  download_all
  import_all

  # データの更新月を記録する
  File.open('zipcode/current_month', 'w') { |f| f.write(Time.now.strftime('%Y%m')) }
end