peterc

• 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

thedayisntgray

from IPython.core.magic import register_cell_magic
import subprocess
import os
import re
from sys import stderr
import shutil
import atexit

class RubySession:
    def __init__(self):

fxn

Ruby: The future of frozen string literals

What is a literal?

In programming languages, literals are textual representations of values in the source code. This is a syntactical concept.

Some examples:

7 # integer literal

timrwilliams

Summary

This example shows how to process a JSON response from the OpenAI Chat API in streaming mode.

• We are looking for a JSON key named questions which contains an array of JSON objects with the keys question and answer
• As each question and answer pair is found we process it via the end_object block.

Dependencies

https://github.com/dgraham/json-stream

cpursley

PostgreSQL is Enough

• Simplify: move code into database functions
• Just Use Postgres for Everything
• Just use Postgres
• PostgreSQL is the worlds’ best database
• Postgres is eating the database world
• Hacker News discussion

Background and Cron Jobs

peterc

# Example of using SQLite VSS with OpenAI's text embedding API
# from Ruby.

# Note: Install/bundle the sqlite3, sqlite_vss, and ruby-openai gems first
# OPENAI_API_KEY must also be set in the environment
# Other embeddings can be used, but this is the easiest for a quick demo

# More on the topic at
# https://observablehq.com/@asg017/introducing-sqlite-vss
# https://observablehq.com/@asg017/making-sqlite-extension-gem-installable

joeldrapper

# frozen_string_literal: true

module Packer
  # A special packer class for globally identifiable objects. It takes a global ID and packs it as a String, then rehydrates it as a GlobalID lookup.
  class GloballyIdentifiable
    def self.from_pack(uri)
      GlobalID::Locator.locate(uri)
    end

    def initialize(identifiable)

joemasilotti

import Foundation

enum Environment: String {
    case development, staging, production
}

extension Environment {
    static var current: Environment {
        if isAppStore {
            return .production

alexrudall

How to add ChatGPT streaming to your Ruby on Rails 7 app!

This guide will walk you through adding a ChatGPT-like messaging stream to your Ruby on Rails 7 app using ruby-openai, Rails 7, Hotwire, Turbostream, Sidekiq and Tailwind. All code included below!

Want more content like this, for free? Check out my free book, RailsAI!

• Follow me on Twitter for more Ruby AI at https://twitter.com/alexrudall
• Released under the MIT License - use as you wish :)

mabenson00

# Basic key operators to query the JSON objects :

# #> : Get the JSON object at that path (if you need to do something fancy)
# -> : Get the JSON object at that path (if you don't)
# ->> : Get the JSON object at that path as text
# {obj, n} : Get the nth item in that object

# https://www.postgresql.org/docs/9.4/functions-json.html#FUNCTIONS-JSONB-OP-TABLE
# Date 
# date before today