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@peterc
peterc / CONVENTIONS.md
Last active April 23, 2025 06:55
CONVENTIONS.md file for AI Rails 8 development
  • You MUST NOT try and generate a Rails app from scratch on your own by generating each file. For a NEW app you MUST use rails new first to generate all of the boilerplate files necessary.
  • Create an app in the current directory with rails new .
  • Use Tailwind CSS for styling. Use --css tailwind as an option on the rails new call to do this automatically.
  • Use Ruby 3.2+ and Rails 8.0+ practices.
  • Use the default Minitest approach for testing, do not use RSpec.
  • Default to using SQLite in development. rails new will do this automatically but take care if you write any custom SQL that it is SQLite compatible.
  • An app can be built with a devcontainer such as rails new myapp --devcontainer but only do this if requested directly.
  • Rails apps have a lot of directories to consider, such as app, config, db, etc.
  • Adhere to MVC conventions: singular model names (e.g., Product) map to plural tables (products); controllers are plural.
  • Guard against incapable browsers accessing controllers with `allo
@kinoute
kinoute / .Dockerfile
Last active March 10, 2025 21:21
Example of Ruby on Rails 6 Multi-stage builds with Docker. Development/production environments share the same Dockerfile.
FROM ruby:2.7.1-slim AS base
LABEL maintainer="Yann Defretin <[email protected]"
# Common dependencies
RUN apt-get update -qq \
&& DEBIAN_FRONTEND=noninteractive apt-get install -yq \
--no-install-recommends \
build-essential=12.6 \
gnupg2=2.2.12-1+deb10u1 \
@andyyou
andyyou / rails_webpacker_bootstrap_expose_jquery.md
Last active August 9, 2022 07:38
Rails 5.2 with webpacker, bootstrap, stimulus starter

Rails 5.2 with webpacker, bootstrap, stimulus starter

This gist will collects all issues we solved with Rails 5.2 and Webpacker

Create Project

# Last few parameters(--skip-* part) is only my habbit not actully required
$ rails new <project_name> --webpack=stimulus --database=postgresql --skip-coffee --skip-test
@pixeltrix
pixeltrix / time_vs_datatime.md
Last active April 23, 2025 13:36
When should you use DateTime and when should you use Time?

When should you use DateTime and when should you use Time?

It's a common misconception that [William Shakespeare][1] and [Miguel de Cervantes][2] died on the same day in history - so much so that UNESCO named April 23 as [World Book Day because of this fact][3]. However because England hadn't yet adopted [Gregorian Calendar Reform][4] (and wouldn't until [1752][5]) their deaths are actually 10 days apart. Since Ruby's Time class implements a [proleptic Gregorian calendar][6] and has no concept of calendar reform then there's no way to express this. This is where DateTime steps in:

>> shakespeare = DateTime.iso8601('1616-04-23', Date::ENGLAND)
=> Tue, 23 Apr 1616 00:00:00 +0000
>> cervantes = DateTime.iso8601('1616-04-23', Date::ITALY)
=> Sat, 23 Apr 1616 00:00:00 +0000
@chrishunt
chrishunt / vim-tmux-copy-paste.md
Last active April 30, 2024 03:41
vim/tmux copy paste in mac os x

Shared Clipboard: vim,tmux,macos

One clipboard to rule them all. Requires tmux >= 1.8. Thanks @thoughtbot

Tell vim to use the system clipboard:

" ~/.vimrc
set clipboard=unnamed " use the system clipboard