This style guide was generated by Claude Code through deep analysis of the Fizzy codebase - 37signals' open-source project management tool.
Why Fizzy matters: While 37signals has long advocated for "vanilla Rails" and opinionated software design, their production codebases (Basecamp, HEY, etc.) have historically been closed source. Fizzy changes that. For the first time, developers can study a real 37signals/DHH-style Rails application - not just blog posts and conference talks, but actual production code with all its patterns, trade-offs, and deliberate omissions.
How this was created: Claude Code analyzed the entire codebase - routes, controllers, models, concerns, views, JavaScript, CSS, tests, and configuration. The goal was to extract not just what patterns are used, but why - inferring philosophy from implementation choices.
| # You can search on columns of the record or on associations | |
| # Example of a search on the record's column | |
| class Brand < ApplicationRecord | |
| include Searchable | |
| # All this are columns on the Brand record | |
| search_on :id, :name, :description | |
| end |
| require "tempfile" | |
| xml = '<?xml version="1.0" encoding="UTF-8"?> | |
| <retenciones:Retenciones xmlns:retenciones="http://www.sat.gob.mx/esquemas/retencionpago/1" xmlns:c_retenciones="http://www.sat.gob.mx/esquemas/retencionpago/1/catalogos" xmlns:intereses="http://www.sat.gob.mx/esquemas/retencionpago/1/intereses" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sat.gob.mx/esquemas/retencionpago/1 http://www.sat.gob.mx/esquemas/retencionpago/1/retencionpagov1.xsd http://www.sat.gob.mx/esquemas/retencionpago/1/intereses http://www.sat.gob.mx/esquemas/retencionpago/1/intereses/intereses.xsd" Version="1.0" FolioInt="5-56-9" FechaExp="2020-06-25T11:58:08-05:00" CveRetenc="16" DescRetenc="0.00" Cert="MIIDhDCCAmygAwIBAgIUMjAwMDEwMDAwMDAzMDAwMjI4MjMwDQYJKoZIhvcNAQEFBQAwSzEVMBMGA1UEAwwMQS5DLiBQcnVlYmFzMRAwDgYDVQQKDAdQcnVlYmFzMQswCQYDVQQGEwJNWDETMBEGA1UEBwwKQ3VhdWh0ZW1vYzAeFw0xNzA0MjgxODMwMzZaFw0yMjEwMTkxODMwMzZaMIGQMRswGQYDVQQDDBJQYWJsbyBOZXJ1ZGEgUGVyZXoxGzAZBgNVBCkMElBhYmxvIE5lcnVkYSB |
| input = { | |
| "builder_rule_0_filter"=>"artist_name", | |
| "builder_rule_0_operator"=>"contains", | |
| "builder_rule_0_value_0"=>"New Found Glory", | |
| "builder_rule_1_filter"=>"bpm", | |
| "builder_rule_1_operator"=>"less", | |
| "builder_rule_1_value_0"=>"150", | |
| "builder_rule_2_filter"=>"days_ago", |
| <div class="relative"> | |
| <input class="form-control" type="email"> | |
| <img class="absolute right-1 top-1" src="#"/> | |
| </div> |
| require "rspec" | |
| module TicTacToe | |
| def self.start_game | |
| Game.new | |
| end | |
| class Game | |
| def initialize | |
| @board = Board.new |
| class CompaniesController < ApplicationController | |
| STORE = Company | |
| def new | |
| form = CRM.new_company_form | |
| render locals: { form: form } | |
| end | |
| def create | |
| status = CRM.create_company(params[:company], STORE) |
| # El método :next sirve para decirle a ruby que empieze en ese momento la siguiente iteración. | |
| # En este ejemplo no tiene mucho caso porque si no es impar, ruby como quiera no haría nada. De forma que el siguente ejemplo sería mejor. | |
| (1..20).each do |number| | |
| if number.odd? | |
| puts number | |
| else | |
| next | |
| end | |
| end |