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chintai.netで家賃相場を調べるrubyプログラム 弐

Last updated at Posted at 2017-08-01

Qiitaとrubyと家賃相場調査初心者です!2!!

どうも!みなさんコメントあざっす!
Qiitaで唯一chintaiタグを使ってます!!

前回の記事では今回は個々の沿線から家賃相場を抽出してました
今回は沿線のURLを集めようというプログラムです

ファイルが2つに分かれているのは深い理由がありそうでないので、皆さんが動かすときは1つにしても動くはずです
chintai_url_get2.rbに関しては全国の沿線のURLを抽出できるはずですが、配列には1道3県しか突っ込んでないです
そのへんの理由は深く突っ込まないでください

前回の記事と今回の2つの計3ファイルをまとめる際は、クラス化したりメソッド化したりオブジェクト指向っぽい書き方でまとめたいですね

これが全国の都道府県の個別URLを抽出するプログラム

chintai_url_get.rb
#chintai_url_get.rb

require 'open-uri'
require "pp"

sio = OpenURI.open_uri("https://www.chintai.net/rent/")

area = []
sio.each_line do |l|
    if l =~ %r|rent/[a-z]+/ensen|
        short_url = l.slice(%r|(/rent/[a-z]+/ensen)|, 1)
        area << "https://www.chintai.net#{short_url}"
    end
end

pp area

これが都道府県のそれぞれの沿線のURLを抽出するプログラム

chintai_url_get2.rb
#chintai_url_get2.rb

require 'open-uri'
require "pp"

area = ["https://www.chintai.net/rent/hokkaido/ensen/",
 "https://www.chintai.net/rent/aomori/ensen/",
 "https://www.chintai.net/rent/iwate/ensen/",
 "https://www.chintai.net/rent/miyagi/ensen/"]#,

=begin
 "https://www.chintai.net/rent/akita/ensen/",
 "https://www.chintai.net/rent/yamagata/ensen/",
 "https://www.chintai.net/rent/fukushima/ensen/",
 "https://www.chintai.net/rent/tokyo/ensen/",
 "https://www.chintai.net/rent/kanagawa/ensen/",
 "https://www.chintai.net/rent/saitama/ensen/",
 "https://www.chintai.net/rent/chiba/ensen/",
 "https://www.chintai.net/rent/ibaragi/ensen/",
 "https://www.chintai.net/rent/tochigi/ensen/",
 "https://www.chintai.net/rent/gunma/ensen/",
 "https://www.chintai.net/rent/nagano/ensen/",
 "https://www.chintai.net/rent/toyama/ensen/",
 "https://www.chintai.net/rent/ishikawa/ensen/",
 "https://www.chintai.net/rent/fukui/ensen/",
 "https://www.chintai.net/rent/niigata/ensen/",
 "https://www.chintai.net/rent/yamanashi/ensen/",
 "https://www.chintai.net/rent/gifu/ensen/",
 "https://www.chintai.net/rent/sizuoka/ensen/",
 "https://www.chintai.net/rent/mie/ensen/",
 "https://www.chintai.net/rent/aichi/ensen/",
 "https://www.chintai.net/rent/osaka/ensen/",
 "https://www.chintai.net/rent/hyogo/ensen/",
 "https://www.chintai.net/rent/kyoto/ensen/",
 "https://www.chintai.net/rent/shiga/ensen/",
 "https://www.chintai.net/rent/nara/ensen/",
 "https://www.chintai.net/rent/wakayama/ensen/",
 "https://www.chintai.net/rent/tottori/ensen/",
 "https://www.chintai.net/rent/simane/ensen/",
 "https://www.chintai.net/rent/okayama/ensen/",
 "https://www.chintai.net/rent/hiroshima/ensen/",
 "https://www.chintai.net/rent/yamaguchi/ensen/",
 "https://www.chintai.net/rent/tokushima/ensen/",
 "https://www.chintai.net/rent/kagawa/ensen/",
 "https://www.chintai.net/rent/ehime/ensen/",
 "https://www.chintai.net/rent/kouchi/ensen/",
 "https://www.chintai.net/rent/fukuoka/ensen/",
 "https://www.chintai.net/rent/saga/ensen/",
 "https://www.chintai.net/rent/nagasaki/ensen/",
 "https://www.chintai.net/rent/kumamoto/ensen/",
 "https://www.chintai.net/rent/ooita/ensen/",
 "https://www.chintai.net/rent/miyazaki/ensen/",
 "https://www.chintai.net/rent/kagoshima/ensen/",
 "https://www.chintai.net/rent/okinawa/ensen/"]
=end

ensen_url = []
area.each do |l|
    sio = OpenURI.open_uri(l)
    sio.each_line do |l|
        if l =~ %r|/ensen/\S+/rent/|
            ensen = l.slice(%r|(/\S+/ensen/\S+/rent/)|, 1)
            ensen_url << "https://www.chintai.net#{ensen}"
        end
    end
end

pp ensen_url

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