EquiValent
Posts Jan 16, 2024 Inline SVG in Ruby on Rails Nov 30, 2023 System.d service (daemon) for Puma server instaled under RVM (Rails) Apr 26, 2023 Update millions of records in Rails Jan 7, 2023 Responsive Navbar with Tailwind & Stimulus JS Dec 8, 2022 Responsibility On Rails Aug 16, 2022 Elasticsearch 7 under Ubuntu - protect with basic password May 9, 2022 Use Importmaps without Rails Apr 28, 2022 Si
Rails 㧠fat model ã‚’é¿ã‘ã‚‹ãŸã‚ã®ã€ã‚ã¾ã‚ŠçŸ¥ã‚‰ã‚Œã¦ã„ãªã„方法ã«ã¤ã„㦠- ãŠã‚‚ã—ã‚webサービス開発日記
ã“ã®ã‚¨ãƒ³ãƒˆãƒªã§æ›¸ã„ãŸå†…容ã¯ã€ã»ã¼ Growing Rails Applications in Practice ã®å†…容ãŒå…ƒã«ãªã£ã¦ã„ã¾ã™ã€‚英語ã§ã™ãŒã€ã“ã“ã§æŒ™ã’ãŸå†…容以外ã«ã‚‚コードを綺麗ã«ä¿ã¤ãƒ†ã‚¯ãƒ‹ãƒƒã‚¯ãŒæ›¸ã‹ã‚Œã¦ãŠã‚Šã€ã‹ã¤ãƒšãƒ¼ã‚¸æ•°ã‚‚å°‘ãªãèªã¿ã‚„ã™ã„ã§ã™ã€‚コードを綺麗ã«ä¿ã¤ã®ãŒå¥½ããªæ–¹ã¯ä¸€èªã—ã¦ã¿ã‚‹ã“ã¨ã‚’ãŠã™ã™ã‚ã—ã¾ã™ã€‚ ã¯ã˜ã‚ã« Rails 㧠fat model ã‚’é¿ã‘ã‚‹ãŸã‚ã®æ–¹æ³•ã¯ã€7 Patterns to Refactor Fat ActiveRecord Models を始ã‚ã¨ã—ã¦ã€å¤šãã®ã‚„ã‚Šæ–¹ãŒå˜åœ¨ã—ã¾ã™*1。 validation ã‚„ callback 㯠ActiveRecord(以下AR) を継承ã›ãšã¨ã‚‚利用ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚7 Patterns to Refactor Fat ActiveRecord Models 㮠「3. Extract Form Objects
Mastering ActiveRecord and Arel
Mastering ActiveRecord and ARel Dan Shultz @danshultz • das0118@gmail.com When I started using rails... Finders Beer.find_by_name_and_abv("Two Hearted Ale", 7.0) Beer.find_all_by_abv(7.0) Conditions Hash Beer.find(:all, conditions: ["abv < ?", 7]) String Conditions Beer.where("abv between ? and ?", 5.5, 7) Beer.where(abv: 5.5..7) Then I joined a large team... We did this... record = self.handles.f
PostgreSQL Materialized Views with Active Record
PostgreSQL Materialized Views with Active RecordAI-enhanced description The document discusses the use of PostgreSQL materialized views in ActiveRecord to enhance data retrieval performance and simplify complex queries in a Rails application. It outlines the benefits of using materialized views, including the ability to capture commonly used joins and filtering, thereby significantly reducing quer
Preforkサーãƒã§Octopusを使ã†ã¨ãã®DBコãƒã‚¯ã‚·ãƒ§ãƒ³ç®¡ç† - ã‘ã‚“ã¡ã‚ƒã‚“ãã‚“ã•ã‚“ã®Web日記
unicornã«ä»£è¡¨ã•ã‚Œã‚‹prefork(ã™ã‚‹)サーãƒã§ã¯ã€DBã¸ã®ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ã®ã‚ˆã†ãªå„プãƒã‚»ã‚¹ã§å…±æœ‰ã—ã¦ã¯ã„ã‘ãªã„リソースをbefore_forkã¨after_forkã§é©åˆ‡ã«ç®¡ç†ã™ã‚‹å¿…è¦ãŒã‚る。 ãµã¤ã†ã®Rails Applicationã¯ä»¥ä¸‹ã®ã‚ˆã†ã«ã€ARã®ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ã‚’ã¯ã‚ŠãªãŠã—ã¦ã„ã‚‹ã¨æ€ã†ã€‚ before_fork do |server, worker| ActiveRecord::Base.connection.disconnect! end after_fork do |server, worker| ActiveRecord::Base.establish_connection end ã—ã‹ã—ã€Octopusを使ã£ã¦ã„ã‚‹å ´åˆã¯ã“ã‚Œã ã‘ã§ã¯ä¸å分ã§ã€ã“ã®ã¾ã¾ã ã¨å†èµ·å‹•ç›´å¾Œã«ã‚¨ãƒ©ãƒ¼ãŒå¤§é‡ã«å‡ºã‚‹ã“ã¨ã«ãªã‚‹ã€‚今関ã‚ã£ã¦ã„るプãƒã‚¸ã‚§ã‚¯ãƒˆã§ã¯NoMethodError: undefi
The definitive guide to Arel, the SQL manager for Ruby - Jiri Pospisil
Arel is the kind of library that many of us Rails developers use on a daily basis and might not even know about it. So what's this library whose name only pops up when everything else fails all about? It's all about providing frameworks with a way of building and representing SQL queries. It's not the kind of library you would typically want to use directly (although you could as shown in a minute
ActiveRecordã®SQLインジェクションパターン
Last Updated on: 2018å¹´10月7æ—¥Railsã§å¤šç”¨ã•ã‚Œã¦ã„ã‚‹ActiveRecordã®ã‚¤ãƒ³ã‚¸ã‚§ã‚¯ã‚·ãƒ§ãƒ³ãƒ‘ターンを簡å˜ã«ç´¹ä»‹ã—ã¾ã™ã€‚出典ã¯rails-sqli.orgãªã®ã§ã‚ˆã‚Šè©³ã—ã„解説ã¯ã“ã¡ã‚‰ã§ç¢ºèªã—ã¦ãã ã•ã„。特ã«æ°—ã‚’ã¤ã‘ã‚‹å¿…è¦ãŒã‚ã‚‹ã¨æ€ã‚れる物ã®ã¿ã‚’ピックアップã—ã¾ã—ãŸã€‚ Exists?メソッド User.exists? params[:user] params[:user]ãªã©ã®ä½¿ã„æ–¹ã¯å±é™ºã§ã™ã€‚Railsã¯PHPãªã©ã¨åŒæ§˜ã«user[]ã¨ã„ã†ãƒ‘ラメーターã§é…列化ã—ã¾ã™ã€‚ ?user[]=1 ãŒå…¥åŠ›ã®å ´åˆã€ SELECT 1 AS one FROM "users" WHERE (1) LIMIT 1 ã¨ãªã‚Šä¸æ£ãªã‚¯ã‚¨ãƒªãŒå®Ÿè¡Œã•ã‚Œã¾ã™ã€‚ Calculateメソッド Calculateメソッドã¯SQLã®é›†ç´„関数を実行ã™ã‚‹ãƒ¡ã‚½ãƒƒãƒ‰ã§ã™ã€‚averageã€calculate
→ Eager Loading (preloading) - 3 ways to do it in Rails 3, 4, 5 and 6
3 ways to do eager loading (preloading) in Rails 3, 4, 5 and 6 … and check why 5600+ Rails engineers read also this 3 ways to do eager loading (preloading) in Rails 3, 4, 5 and 6 You are probably already familiar with the method #includes for eager loading data from database if you are using Rails and ActiveRecord. But do you know why you someties get few small and nice SQL queries and sometimes o
ActiveRecordを複数スレッド環境ã§åˆ©ç”¨ã™ã‚‹ — recompile.net
2014å¹´05月13æ—¥ ActiveRecordを何も考ãˆãšã«è¤‡æ•°ã‚¹ãƒ¬ãƒƒãƒ‰ãŒå‹•ä½œã™ã‚‹ç’°å¢ƒã§åˆ©ç”¨ã™ã‚‹ã¨ã€ã‚¹ãƒ¬ãƒƒãƒ‰æ¯Žã«ActiveRecordãŒã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ã‚’確ä¿ã—よã†ã¨ã™ã‚‹ã®ã§ã€ãƒ—ールサイズを超ãˆã¦ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ãŒç¢ºä¿ã§ããªã„ã¨ã„ã†ã‚¨ãƒ©ãƒ¼ãŒç™ºç”Ÿã™ã‚‹ã€‚ activerecord-4.1.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:190:in `block in wait_poll': could not obtain a database connection within 5.000 seconds (waited 5.001 seconds) (ActiveRecord::ConnectionTimeoutError) ã“ã¡ã‚‰ã¨ã—ã¦ã¯ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ãƒ—ールãŒã‚ã‚‹ã®ã ã‹ã‚‰ã€ActiveRecordã®æ–¹ã§ã‚„
Rails ã§ã€Controller ã«å®šç¾©ã•ã‚Œã¦ã„ã‚‹ action を一度ã«å–å¾—ã™ã‚‹æ–¹æ³•ã¯ã‚ã‚Šã¾ã™ã‹ï¼Ÿ - QA@IT
å¹³ç´ ã‚ˆã‚ŠQAï¼ ITã‚’ã”利用ã„ãŸã ãã€èª ã«ã‚ã‚ŠãŒã¨ã†ã”ã–ã„ã¾ã™ã€‚ QAï¼ ITã¯ã€Œè³ªå•ã‚„回ç”を『共有ã€ã—『編集ã€ã—ã¦ã„ãã“ã¨ã§ãƒ™ã‚¹ãƒˆãªQAã‚’è“„ç©ã§ãã‚‹ã€ITエンジニアã®ãŸã‚ã®å•é¡Œè§£æ±ºã‚³ãƒŸãƒ¥ãƒ‹ãƒ†ã‚£ãƒ¼ã€ã¨ã—ã¦ç´„7å¹´é–“é‹å–¶ã‚’ã—ã¦ãã¾ã—ãŸã€‚ã“ã‚Œã¾ã§ã‚µãƒ¼ãƒ“スを続ã‘ã‚‹ã“ã¨ãŒã§ããŸã®ã¯ã€QAï¼ ITã®ã‚³ãƒ³ã‚»ãƒ—トã«å…±æ„Ÿã‚’ã„ãŸã ãã€é©åˆ‡ãªè³ªå•ã‚„回ç”ã‚’ãŠå¯„ã›ã„ãŸã ã„ãŸçš†ã•ã¾ã®ã”支æ´ãŒã‚ã£ãŸã‹ã‚‰ã“ãã¨è€ƒãˆã¦ãŠã‚Šã¾ã™ã€‚é‡ãã¦å¾¡ç¤¼ç”³ã—上ã’ã¾ã™ã€‚ ã—ã‹ã—ãªãŒã‚‰ã€ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã®æƒ…å ±å…¥æ‰‹æ–¹æ³•ã®å¤šæ§˜åŒ–ã‚„QAã‚µãƒ¼ãƒ“ã‚¹å¸‚å ´ã®çŠ¶æ³ã€ï¼ ITã®ä»Šå¾Œã®ãƒ¡ãƒ‡ã‚£ã‚¢é‹å–¶æ–¹é‡ãªã©ã‚’検討ã—ãŸçµæžœã€2020å¹´2月28日（金）15:00ã‚’ã‚‚ã¡ã¾ã—ã¦QAï¼ ITã®ã‚µãƒ¼ãƒ“スを終了ã™ã‚‹ã“ã¨ã«ã—ã¾ã—ãŸã€‚ ã“ã‚Œã¾ã§ã”利用をã„ãŸã ãã¾ã—ãŸçš†ã•ã¾ã«ã¯æ®‹å¿µãªãŠçŸ¥ã‚‰ã›ã¨ãªã‚Šã€èª ã«å¿ƒè‹¦ã—ãæ€ã£ã¦ãŠã‚Šã¾ã™ã€‚何ã¨ãžã€ã”ç†è§£ã‚’ã„ãŸã ã‘ã¾ã™ã¨å¹¸ã„ã§ã™ã€‚ QAï¼ ITã®7å¹´é–“ã§çš†ã•ã¾ã®çŸ¥è˜
has_many :through - The other side of polymorphic :through associations
Here's a gotcha: has_many :through associations do not support polymorphic access to the associated object. In this article I'll show the reasons for this limitation, and also provide an approach that lets you work with polymorphic associations without too much trouble. Let's start with some example code so I have something concrete to talk about. Here's some models for representing that an author
Rails を使用ã—ãªã„ ActiveRecord + Migrate - chaotic valkyrie
メモ代ã‚り。 ActiveRecord require 'rubygems' require 'active_record' ActiveRecord::Base.establish_connection( :adapter => 'postgresql', :host => 'localhost', :username => 'foo', :database => 'baz', :encoding => 'utf8' ) class User < ActiveRecord::Base end User.find(:all).each do |u| p u end Migrate Rakefile ã»ã‚“ã¨ã¯è¨å®šãƒ•ã‚¡ã‚¤ãƒ«ã‚ã‘ãŸã»ã†ãŒã„ã„ã‚“ã ã‘ã©ã require 'rubygems' require 'active_record' require 'logger' ActiveRecord:
Ruby on Rails - ActiveRecord - — ã‚ã‚Šãˆã‚‹ãˆã‚Šã‚
æ–¹é‡ Rubyを知ã£ã¦ã„ã‚‹å‰æã§ã™(å‰å›žã®å‹‰å¼·ä¼šã®è³‡æ–™ http://dev.ariel-networks.com/articles/workshop/ruby/) RDBã®åŸºç¤ŽçŸ¥è˜ãŒå‰æã§ã™ ãªã‚‹ã¹ã手を動ã‹ã—ã¦ç›®ã«è¦‹ãˆã‚‹å½¢ã§èª¬æ˜Žã‚’進ã‚ã¾ã™ Ruby on Rails(以下ã€Rails)全体ã¯å·¨å¤§ãªã®ã§ã€ActiveRecord(ORM層)ã«è©±ã‚’é™å®šã—ã¾ã™(Web層ã¯æ¬¡å›ž) Webã‹ã‚‰åˆ‡ã‚Šé›¢ã—ã¦irb or コマンドラインã§ActiveRecordを使ã„ã¾ã™
Adobe AIRå‘ã‘ã®ActiveRecord·AirRecord MOONGIFT
ç¾åœ¨ã€æ§˜ã€…ãªãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžå‘ã‘ã®ãƒ•ãƒ¬ãƒ¼ãƒ ワークã§O/RマッピングãŒæä¾›ã•ã‚Œã¦ã„る。ãã®ãŸã‚ã€SQLを書ãé »åº¦ãŒä¸‹ãŒã£ã¦ãŠã‚Šã€SQLを書ã‹ãªã„ã¨ãªã‚‰ãªã„å ´é¢ã«ãªã‚‹ã¨ãƒ†ãƒ³ã‚·ãƒ§ãƒ³ãŒä¸‹ãŒã£ã¦ã—ã¾ã†ãらã„ã 。 モデルã®è¨è¨ˆã‚³ãƒ¼ãƒ‰ Railsã§è¨€ãˆã°ActiveRecordã€Javaã§è¨€ãˆã°Hibernateã€PHPã§ã‚ã‚Œã°CakePHPã§ã‚‚O/RマッピングãŒã‚る。ã§ã¯Adobe AIRã§ã¯ã©ã†ã‹ã¨è¨€ãˆã°ã€AirRecordを使ãˆã°è‰¯ã„。 今回紹介ã™ã‚‹ã‚ªãƒ¼ãƒ—ンソース・ソフトウェアã¯AirRecordã€Adobe AIR開発ã«å½¹ç«‹ã¤O/Rマッピングソフトウェアã 。 AirRecordã¯StartCommandやモãƒãƒã‚±ãªã©ã®é–‹ç™ºè€…ã§çŸ¥ã‚‰ã‚Œã‚‹ã‚¯ãƒªã‚¨ã‚¤ãƒˆã‚·ã‚¹ãƒ†ãƒ ã®å¤ªç”°æ°ã«ã‚ˆã‚‹ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã 。AirRecordã¯Railsã‚„CakePHPã¨åŒã˜ãƒ‡ã‚¶ã‚¤ãƒ³ãƒ‘ターン「ActiveRecordã€ã‚’基ã«è¨è¨ˆã•ã‚Œã¦ã„
Parked at Loopia
This domain has been purchased and parked by a customer of Loopia. Use LoopiaWHOIS to view the domain holder's public information. Are you the owner of the domain and want to get started? Login to Loopia Customer zone and actualize your plan. Register domains at Loopia Protect your company name, brands and ideas as domains at one of the largest domain providers in Scandinavia. Search available dom
Ryan's Scraps: What's New in Edge Rails: Default Scoping
It’s pretty common to want SQL queries against a particular table to always be sorted the same way, and is one of the reasons why I added the ordered scope to the utility scopes gem. For instance, when dealing with collections of articles it is reasonable to expect that the default ordering be most recent first, i.e. created_at DESC. Well now you can specify default ordering, and other scopes, in
複数㮠ActiveRecord オブジェクトをã¾ã¨ã‚ã¦æ‰±ã† - ursmã®æ—¥è¨˜
1月ã¯æ–°ã—ã„ã“ã¨ã‚’始ã‚ãŸããªã‚‹ ã‚ã‘ã¾ã—ã¦ãŠã‚ã§ã¨ã†ã”ã–ã„ã€ã¾ã—ãŸã€‚ 気付ã‘ã°å¹´æ˜Žã‘ã‹ã‚‰æ—¢ã«20æ—¥ãŒçµŒéŽã—ã€ã‚リッã¨ã—ãŸæ°—æŒã¡ã‚‚è–„ã‚Œã€ã‚‚ã†ã™ã£ã‹ã‚Šæ—¥å¸¸ã®ç©ºæ°—。 æ£æœˆã‚ãŸã‚Šã®ã‚リッã¨ã—ãŸé›°å›²æ°—ã€ã„ã„よã。何ã‹ã‚’始ã‚ãŸããªã‚‹ã€‚ ãã—ã¦ã‚ãŸã—ãŒå§‹ã‚ãŸã®ã¯ã€å¿ƒã«ã‚‚体ã«ã‚‚ã„ã„自炊。 去年ã®å¾ŒåŠã¯â€¦
rails抜ãã§ActiveRecord::Migrationを使ã†æ–¹æ³• - メモ日記
「DBã®ã‚¹ã‚ーマ管ç†ã‚’便利ã«ã—ãŸã„ã€ã‘ã©rails使ã†ã»ã©ã§ã‚‚ãªã„ã—ã€ãªã‚“ã¦ã„ã†ãƒ¯ã‚¬ãƒžãƒžã‚’通ã™ãŸã‚ã«ãŒã‚“ã°ã£ã¦ã¿ã¾ã—ãŸã€‚コードã¯ä¾‹å¤–ã¨ã‹ã‚¹ãƒ«ãƒ¼ã—ã¦ã¾ã™ã®ã§ã”注æ„を。1. åˆæœŸåŒ–用ã®boot.rbを作る equire 'yaml' require 'logger' require 'rubygems' require 'active_record' conf = YAML::load_file('database.yml') ActiveRecord::Base.establish_connection(conf['database_config']) logger = Logger.new(STDOUT) logger.level = Logger::DEBUG ActiveRecord::Base.logger = logger ActiveRecord::Base.logger ã« l
ランã‚ング
ランã‚ング
ãŠçŸ¥ã‚‰ã›
リリースã€éšœå®³æƒ…å ±ãªã©ã®ã‚µãƒ¼ãƒ“スã®ãŠçŸ¥ã‚‰ã›
最新ã®äººæ°—エントリーã®é…ä¿¡
j次ã®ãƒ–ックマーク
kå‰ã®ãƒ–ックマーク
lã‚ã¨ã§èªã‚€
eコメント一覧を開ã
oページを開ã
This week in Rails: Relation#or, file fixtures, kwargs and more!
[Ruby] 例ãˆã°ã€ActiveRecord ã® connection_pool ã‚’æ¢ã‚ã‚‹ - sonots:blog![[Ruby] 例ãˆã°ã€ActiveRecord ã® connection_pool ã‚’æ¢ã‚ã‚‹ - sonots:blog](https://cdn-ak-scissors.b.st-hatena.com/image/square/b78f2ffdf4c59091f2ac617490c58f3a6c649e0d/backend=imagemagick;height=288;version=1;width=512/https%3A%2F%2Fparts.blog.livedoor.jp%2Fimg%2Fusr%2Fcmn%2Fogp_image%2Flivedoor.png)
{{#tags}}- {{label}}
{{/tags}}