Active Record 驗證— Ruby on Rails 指南
PG::UndefinedFunction: ERROR: function lower(date) does not exist LINE 1: SELECT "posts".* FROM "posts" WHERE (lower("posts"."date") ... · Issue #1089 · thoughtbot/administrate · GitHub
FormObject】使ってみた - Qiita
Rails/HasManyOrHasOneDependent should allow combination of association extension and with_options · Issue #415 · rubocop/rubocop-rails · GitHub
Ruby-on-Rails Conditional Validation / brd.mn
rails/with_options.rb at main · rails/rails · GitHub
Functions in Ruby that make life easy. – My blog
バリデーションに「with_options」を使用することで、コードをすっきりさせる - Qiita
Using `puts` to block argument with `with_options` raises an exception · Issue #36551 · rails/rails · GitHub
Rails 7 review and Rails 7.1 preview - presentation slides from Ruby User Group Frankfurt | Stefan's Blog
with_optionsを使う際の注意点 - paranitips
Agile Web Development with Rails by Bill Trammel - Issuu
Reading some Rails code: active_support/with_options - YouTube
Rails の with_options がヤバいし、なんならバグってたって話
Rails/HasManyOrHasOneDependent does not handle `with_options` blocks properly · Issue #4909 · rubocop/rubocop · GitHub
ASCIIcasts - “Episode 226 - Upgrading to Rails 3 Part 2”
Stepped Forms and Conditional Validation in Rails | LaunchPad Lab
Microservice on Rails - RubyConfBR 2015
Rails】with_options ブロックの内側でさらにオプションを指定した場合の動作について - サーバーワークスエンジニアブログ
Rails custom validation contexts - DEV Community
Understanding Ruby on Rails ActiveRecord Validations | Web-Crunch
Improve the Readability of your Ruby on Rails app - Part 1 : r/rails
Rails 6 `Field::ActiveStorage.with_options(show_preview_size: ...)` does not return preview images (as expected) · Issue #27 · Dreamersoul/administrate-field-active_storage · GitHub
Multiple calls to validate with same symbol will overwrite it · Issue #29048 · rails/rails · GitHub
Ruby On Rails | PDF | Ruby On Rails | Web Application
Railsでvalidationを行う際のwith_optionsの使い方 - その辺にいるWebエンジニアの備忘録
Different ways to set attributes in Active record – My blog
Rails の with_options がヤバいし、なんならバグってたって話
