投稿時間:2022-11-14 14:20:43 RSSフィード2022-11-14 14:00 分まとめ(26件)

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IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] 子ども連れ旅行で総合満足度が最も高いホテル　3位「ダイワロイネットホテル」、2位「コンフォートホテル」、1位は？	https://www.itmedia.co.jp/business/articles/2211/14/news110.html	itmedia	2022-11-14 13:13:00
IT	ITmedia 総合記事一覧	[ITmedia PC USER] エイサー、打鍵感の切り替え機能を備えたUSBゲーミングキーボード「Aethon 700」　Makuakeで先行予約販売を開始	https://www.itmedia.co.jp/pcuser/articles/2211/14/news109.html	aethon	2022-11-14 13:09:00
IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] 冬に食べたくなる温かいメニュー　3位「豚汁」、2位「おでん」、1位は？	https://www.itmedia.co.jp/business/articles/2211/14/news108.html	itmedia	2022-11-14 13:05:00
python	Pythonタグが付けられた新着投稿 - Qiita	領域拡張による物体認識のPython実装	https://qiita.com/anilineyellow/items/25595cd2840c2db5ab42	物体認識	2022-11-14 13:30:36
js	JavaScriptタグが付けられた新着投稿 - Qiita	スプラトゥーン3のスケジュールをwebでみれるやつ作ったのでメモ	https://qiita.com/bedauxx/items/8c33a6bc9376cd159890	nintendoswitchonline	2022-11-14 13:54:22
Ruby	Rubyタグが付けられた新着投稿 - Qiita	【Ruby on Rails】RSpecでのモデル作成方法	https://qiita.com/slamdunkducksky/items/e9ddaa7ac02b6ce23675	railsgrspecmodel	2022-11-14 13:45:23
Ruby	Rubyタグが付けられた新着投稿 - Qiita	【Ruby on Rails】Factorybotでのインスタンス生成方法	https://qiita.com/slamdunkducksky/items/6646936d3c0a6a46e1d2	specfa	2022-11-14 13:44:13
Linux	Ubuntuタグが付けられた新着投稿 - Qiita	Ubuntu20.04でBluetoothをオンにできないときの対処法	https://qiita.com/ousagi_sama/items/f3e10be5121c0aede8c6	bluetooth	2022-11-14 13:54:22
golang	Goタグが付けられた新着投稿 - Qiita	goでパッケージ更新	https://qiita.com/Esfahan/items/66d2fba0912a48041132	golistfjoindepsn	2022-11-14 13:23:49
Ruby	Railsタグが付けられた新着投稿 - Qiita	【Ruby on Rails】RSpecでのモデル作成方法	https://qiita.com/slamdunkducksky/items/e9ddaa7ac02b6ce23675	railsgrspecmodel	2022-11-14 13:45:23
Ruby	Railsタグが付けられた新着投稿 - Qiita	【Ruby on Rails】Factorybotでのインスタンス生成方法	https://qiita.com/slamdunkducksky/items/6646936d3c0a6a46e1d2	specfa	2022-11-14 13:44:13
技術ブログ	Developers.IO	マルチチャンネルキャンペーンでメッセージ送ってみた！#Braze	https://dev.classmethod.jp/articles/multi-channel-campaign/	braze	2022-11-14 04:45:39
海外TECH	DEV Community	Using Action Cable with React and Rails.	https://dev.to/f53/using-action-cable-with-react-and-rails-2o9f	Using Action Cable with React and Rails IntroEarlier this week I wanted to use Action Cable for its nice two way connections I ended up crying trying to understand the documentation as there is no good examples for implementing it anywhere Even worse there are absolutely no tutorials for using it with React I wrote this guide to try and fill that void Prerequisites RecommendationsThis Guide assumes you already have a functioning app with React on top of Rails have a User table that stores logged in user id inside session user id If you dont have any of that consider starting with my react rails templateFor a finished project that implements this tutorial look at my react rails chat app which is built off of that template PostgresqlAction Cable requires you to use postgresql Making a new app with postgresqlIf you dont have an rails app yet follow this guide fully Switching an existing rails app to postgresqlIf you already have an app but it isn t based on postgres follow these steps to switch to itin your Gemfile switch out sqlite for postgres sqlite as database for Active Record gem sqlite gt Use postgresql as the database for Active Record gem pg gt replace your config database yml with a postgres one replacing APPNAME with whatever you are calling your appdefault amp default adapter postgresql encoding unicode pool lt ENV fetch RAILS MAX THREADS gt timeout development lt lt default database APPNAME developmenttest lt lt default database APPNAME testproduction lt lt default database APPNAME production username APPNAME password lt ENV APPNAME DATABASE PASSWORD gt Then follow this guide excluding step to finish Adding action cableUsing action cable directly on top of postgresql is not recommended for performance reasons Instead its advised to use a separate server that runs between postgres and action cable caching stuff to help improve performance It seems like everyone uses redis for this purpose RedisInstall redis server sudo apt install redis serverAdd redis to your Gemfile Use Redis adapter to run Action Cable in productiongem redis gt From now on when starting your server you have to start the redis server along with rails and npmredis serverrails snpm start Setting Up Action cableFirst enable it by uncommenting the require for action cable Inside config application rb this is typically on line require action cable engine Add an action cable route to your config routes rbRails application routes draw do ActionCable Magic mount ActionCable server gt cable The rest of your routesendCreate config cable yml this is what puts redis between your actioncable and postgresdevelopment adapter redistest adapter testproduction adapter redis url lt ENV fetch REDIS URL redis localhost gt channel prefix phase project guidelines productionCreate app channels application cable channel rbmodule ApplicationCable class Channel lt ActionCable Channel Base endendCreate app channels application cable connection rbmodule ApplicationCable class Connection lt ActionCable Connection Base identified by current user def connect self current user find verified user end private def find verified user session id is optional only use it if you are using has secure password in your user model user User find cookies encrypted session id user id return user unless user nil reject unauthorized connection end endend Adding a channel and some broadcasts ChannelThis is channel that your frontend will end up connecting to They handle subscribing to and unsubscribing from the handshake data stream thingy Create app channels things channel rb where thing is one of your models You will later use the thing model in a broadcast function so make sure you have access to it things channel rbclass ThingsChannel lt ApplicationCable Channel def subscribed stop all streams thing Thing find params thing id stream for thing end You can add a received function here but I dont know what it does def unsubscribed stop all streams endendIn my case I am going to make a channel for updating data related to a room rooms channel rbclass RoomsChannel lt ApplicationCable Channel def subscribed stop all streams room Room find params room id stream for room end You can add a received function here but I dont know what it does I didn t need it def unsubscribed stop all streams endend Broadcasting data to the channelBroadcasts take a Model and a hash then send it to all users subscribed to that Model s channel You can put broadcasts basically anywhere in your code ThingsChannel broadcast to thing an instance of your model ex Thing find id hash any data In my case I want to broadcast data to the relevant Room s channel when a new message created or deleted in it app controllers messages controller rb POST messagesdef create room Room find params room id message Message new text content params text content message user current user message room room message save after successfully creating the message update the room that it was in broadcast room render json message status createdend DELETE messages def destroy message Message find params id room message room message destroy after successfully yeeting the message update the room that it was in broadcast roomendprivatedef broadcast room ActiveModelSerializers SerializableResource new object as json returns the same thing sent by render json object RoomsChannel broadcast to room ActiveModelSerializers SerializableResource new room as json endThis is a pretty lazy implementation as I just always re serialize the entire room object and send just that This has the benefit of needing less thought on how you broadcast data in the backend and on how you process the data you get on the frontend A more smart implementation would be something like this POST messagesdef create after successfully creating the message tell the room to add it RoomsChannel broadcast to room new message message end DELETE messages def destroy after successfully yeeting the message tell the room to remove it RoomsChannel broadcast to room remove message params id endThis would have the benefit of being more resource friendly on both the frontend and backend Its just a bit more work to implement I am going to be giving examples for the lazy broadcast method from now on React side Installing Action Cable ProviderInstall JackHowa s fork of react actioncable provider unless you are reading this sometime in the future like in that case take a look at the network graph to make sure you are using the most well maintained branch cd clientnpm install save thrash industries react actioncable provider Getting the Cable Inside your client src index js add some stuff to initialize a cableApp and pass cable down into your App import React from react import ActionCable from actioncable const cableApp cableApp cable ActionCable createConsumer cable const root ReactDOM createRoot document getElementById root root render lt React StrictMode gt lt App cable cableApp cable gt lt React StrictMode gt Passing the cable downPass the Cable down through your app similar to how you would do with state repeating down to the component you need the stuff in import Room from pages Room export default function App cable return lt div id app className col centered gt lt Route path room room id element lt Room cable cable gt gt lt div gt Using the cableUsing the cable you passed down you create a new connection like this passing in callback functions for when you successfully connect disconnect and receive datacable subscriptions create channel ThingsChannel thing id thing id connected gt console log thing connected disconnected gt console log thing disconnected received updatedRoom gt setRoomObj updatedRoom Here is an example for a lazy implementation of that export default function Room cable const room id useParams Add some state for your the latest data from the Channel optionally with defaults so your program doesn t die before its gotten data const roomObj setRoomObj useState messages useEffect gt manually fetch to get the initial state fetch rooms room id then r gt r json then d gt setRoomObj d subscribe to updates for room cable subscriptions create channel RoomsChannel room id room id optionally do some stuff with connects and disconnects connected gt console log room connected disconnected gt console log room disconnected update your state whenever new data is received received updatedRoom gt setRoomObj updatedRoom cable room id return lt div id room className col gt Use your live data somehow lt div gt ConclusionWhile this certainly isn t exhaustive I hope its enough to get you started Feel free to ask questions in the comments	2022-11-14 04:13:37
ニュース	BBC News - Home	Frasers Group said to be close to buying Savile Row tailor - report	https://www.bbc.co.uk/news/business-63618491?at_medium=RSS&at_campaign=KARANGA	gieves	2022-11-14 04:03:45
ビジネス	東洋経済オンライン	｢日本人男性の精子｣量も質もよくない衝撃事実 世界的に精子の数は減っている中でさらに少ない | 健康 | 東洋経済オンライン	https://toyokeizai.net/articles/-/630261?utm_source=rss&utm_medium=http&utm_campaign=link_back	世界保健機関	2022-11-14 14:00:00
ニュース	Newsweek	戦争支持率は激下がり？──「終わらない戦争」へのロシア人の本音はどこに	https://www.newsweekjapan.jp/stories/world/2022/11/post-100102.php	政府系機関の調査で戦争支持の割合が高く出るのは当然だろうが、独立系調査機関レバダセンターが月に行った調査でも、戦争を支持すると答えた人はに達した。	2022-11-14 13:05:37
マーケティング	MarkeZine	博報堂DYホールディングスとMESON「Helix Lab」発足　生活者起点でメタバースを研究	http://markezine.jp/article/detail/40581	helixlab	2022-11-14 13:30:00
IT	週刊アスキー	人気の「和栗のモンブラン大福」などを販売！　和菓子店「末広庵」がそごう横浜に期間限定出店、11月15日から	https://weekly.ascii.jp/elem/000/004/112/4112921/	和菓子店	2022-11-14 13:50:00
IT	週刊アスキー	森永「小枝」とのコラボ「小枝シュー」がオトクに試せる ビアードパパ「ブラックフライデーセット」	https://weekly.ascii.jp/elem/000/004/112/4112920/	看板	2022-11-14 13:45:00
IT	週刊アスキー	西新宿の新雑誌が誕生⁉　記事作成のノウハウを伝授する、第2回意見交換会を開催！！　Vol.4～2022年11月～	https://weekly.ascii.jp/elem/000/004/112/4112900/	意見交換会	2022-11-14 13:30:00
IT	週刊アスキー	築地銀だこ「サッカー日本代表オフィシャルライセンス商品 だんらんパック」、「SAMURAI BLUE」 をイメージ	https://weekly.ascii.jp/elem/000/004/112/4112917/	samurai	2022-11-14 13:30:00
IT	週刊アスキー	まさかの終わり!?『フォートナイト』チャプター3・フィナーレイベントが12月4日に開催	https://weekly.ascii.jp/elem/000/004/112/4112941/	epicgames	2022-11-14 13:30:00
IT	週刊アスキー	「MARUCHAN QTTA コク味噌味肉200％」 具材の肉が通常の2倍！	https://weekly.ascii.jp/elem/000/004/112/4112916/	maruchanqtta	2022-11-14 13:15:00
IT	週刊アスキー	ソフトバンク、スマホが初めてのユーザー向けに4GBと20GBの「スマホデビュープラン＋」	https://weekly.ascii.jp/elem/000/004/112/4112938/	月日	2022-11-14 13:05:00
マーケティング	AdverTimes	BOSSがNetflixの完全パロディサイト「ボスフリ」を開始、オリジナル動画14本を順次公開	https://www.advertimes.com/20221114/article401806/	netflix	2022-11-14 04:10:13
海外TECH	reddit	Post Game Thread: Los Angeles Chargers at San Francisco 49ers	https://www.reddit.com/r/49ers/comments/yuos5l/post_game_thread_los_angeles_chargers_at_san/	Post Game Thread Los Angeles Chargers at San Francisco ersLos Angeles Chargers at San Francisco ers Levi sStadium Network s NBC Universo Time Clock Final Q Q Q Q Total Chargers ers Last Play END GAME Team Type Quarter Description LAC TD J Herbert pass deep left to D Carter for yards TOUCHDOWN YAC LAC PAT C Dicker extra point is GOOD Center J Harris Holder J Scott SF FG R Gould yard field goal is GOOD Center T Pepper Holder M Wishnowsky LAC FG C Dicker yard field goal is GOOD Center J Harris Holder J Scott LAC FG C Dicker yard field goal is GOOD Center J Harris Holder J Scott SF TD J Garoppolo up the middle for yard TOUCHDOWN SF PAT R Gould extra point is GOOD Center T Pepper Holder M Wishnowsky LAC FG C Dicker yard field goal is GOOD Center J Harris Holder J Scott SF FG R Gould yard field goal is GOOD Center T Pepper Holder M Wishnowsky SF TD No Huddle C McCaffrey left guard for yards TOUCHDOWN Penalty on LAC S Joseph Defensive Offside declined SF FG R Gould yard field goal is GOOD Center T Pepper Holder M Wishnowsky This was created by a bot For issues or suggestions please message u nfl gdt bot NFL changed a lot during the offseason so improvements will be made during the season Note All data is only as accurate as nfl com Missing data is likely on their end submitted by u nfl gdt bot to r ers link comments	2022-11-14 04:27:14