質問編集履歴
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追加編集しました。
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#新着記事を取得
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feedUrl = 'https://
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feedUrl = 'https://＊＊＊＊＊＊＊＊＊/feed/'
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rss = RSS::Parser.parse(feedUrl)
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ActiveRecord::ActiveRecordError: cannot update a new record
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from /home/developer/app/
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from /home/developer/app/＊＊＊＊＊＊＊/vendor/bundle/ruby/2.4.0/gems/activerecord-5.1.2/lib/active_record/persistence.rb:326:in `update_columns'
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ご指摘ありがとうございます。内容修正いたしました。何卒よろしくお願いいたします。
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RSS取得し、DBに格納したい！
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RSS取得し、DBに上書きして格納したい！
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### 前提・実現したいこと
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WPのRSSの上位３つを取得して、DBに突っ込みたい。
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WPのRSSの上位３つを取得して、DBに突っ込みたいです。
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その際に、順番を振りたくその値（rank）を増やし
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その際に、順番を振りたくその値（rank）を増やしています。
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each文でRSSの記事を１つずつ取り出しupdateするようにしたいです。
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過去に入っていたレコードは必要なく、上書きしたいです。
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お知恵を貸していただいけないでしょうか。。。
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### Ruby
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```
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require 'rss'
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class WpEntriesJob < ApplicationJob
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feedUrl = 'https://＊＊＊＊＊＊＊＊/feed/'
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queue_as :default
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if ???
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# def perform
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#新着記事を取得
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feedUrl = 'https://sharedine.me/shokuiku-media/feed/'
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rss = RSS::Parser.parse(feedUrl)
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#DBに新たに新着３件の記事を格納（idも再び1からとなる）
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rss.items.first(3).each.with_index(1) do |item, i|
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wpentry = WpEntry.new
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wpentry.rank = "#{i}"
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wp
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wpentry.type = 0
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wpentry.title = item.title
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wpentry.link = item.link
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wpentry.category = item.category
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wpentry.date = item.date
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wpentry.description = item.description
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wpentry.update_columns rank: wpentry.rank, type: wpentry.type, title: wpentry.title, link: wpentry.link, category: wpentry.category, date: wpentry.date, description: wpentry.description
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# end
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end
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end
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rss.items.first(3).each do |item|
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wp_entry.title = item.title
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wp_entry.link = item.link
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wp_entry.category = item.category.content
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wp_entry.date = I18n.l(item.date)
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wp_entry.description = item.description
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wp_entry.save!
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end
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```
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```
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###console
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```ここに言語を入力
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[21] pry(main)> require 'rss'
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=> false
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[22] pry(main)> class WpEntriesJob < ApplicationJob
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[22] pry(main)* queue_as :default
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[22] pry(main)*
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[22] pry(main)*
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[22] pry(main)* # def perform
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[22] pry(main)* #新着記事を取得
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[22] pry(main)* feedUrl = 'https://*******/*******/feed/'
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[22] pry(main)* rss = RSS::Parser.parse(feedUrl)
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[22] pry(main)* #DBに新たに新着３件の記事を格納（idも再び1からとなる）
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[22] pry(main)* rss.items.first(3).each.with_index(1) do |item, i|
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[22] pry(main)* wpentry = WpEntry.new
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[22] pry(main)* wpentry.rank = "#{i}"
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[22] pry(main)* wpentry.type = 0
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[22] pry(main)* wpentry.title = item.title
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[22] pry(main)* wpentry.link = item.link
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[22] pry(main)* wpentry.category = item.category
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[22] pry(main)* wpentry.date = item.date
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[22] pry(main)* wpentry.description = item.description
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[22] pry(main)* wpentry.update_columns rank: wpentry.rank, type: wpentry.type, title: wpentry.title, link: wpentry.link, category: wpentry.category, date: wpentry.date, description: wpentry.description
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[22] pry(main)* # end
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[22] pry(main)* end
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[22] pry(main)* end
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ActiveRecord::ActiveRecordError: cannot update a new record
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156
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157
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from /home/developer/app/sharedine/vendor/bundle/ruby/2.4.0/gems/activerecord-5.1.2/lib/active_record/persistence.rb:326:in `update_columns'
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```
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###試したこと
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update?の使い方やら、配列？ハッシュ？の理解がまだまだ足りていないようです。
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色々書き方試してみましたがうまく行きません。
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sql文でTRUNCATE TABLEは使わない方法で探しています。
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table削除してしまうと、ページ真っ白になってしまうみたいです。
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### 補足情報（FW/ツールのバージョンなど）
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