The Ruby and Rails community linklog
Made a library? Written a blog post? Found a useful tutorial? Share it with the Ruby community here or just enjoy what everyone else has found!
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Ruby Bitwise Operators
An operator is bitwise when instead of treating integers as whole numbers, it treats them as a sequence of bits. [more inside]
Migrate your apps to the new community-maintained trix gem: 'trix-rails'
Trix is a very popular gem that implements Basecamp ‘trix’ functionality. Unfortunately support has lapsed for the gem, and the community has launched a new supported gem. https://schwad.github.io/ruby/rails/community/2018/08/21/new-community-maintained-trix-gem.html
Using Lambdas to Simplify Varying Behaviors in Your Code
This article discusses some techniques I’ve used to incorporate the benefits of functional programming into Ruby. Using enumerables and filters as examples, it shows how using callables such as lambdas can massively simplify the support of varying behaviors. [more inside]
Carrierwave: How to Avoid Issues with Version Inheritance
Сarrierwave is a popular image upload gem used by the Rails community to upload files to the server. Let’s see how to avoid issues with version inheritance. [more inside]
Spreadsheet Architect v3.1.0 Released!
Version 3.1.0 Spreadsheet Architect has now been released. One cool new enhancement added in this version is the conditional_row_styles option which enables you to create even more dynamic spreadsheets. Check the changelog for more details. https://github.com/westonganger/spreadsheet_architect
Ruby Memory Profiling in Practice
When I only started programming I thought that profiling and optimization is hard. A recent task at work inspired me to write a post with real life cases on how one would deal with memory issues. Hopping that this may be encouraging for someone 😁 [more inside]
Indexes on Rails: How to Make the Most of Your Postgres Database
Optimizing database queries is arguably one of the fastest ways to improve the performance of the Rails applications. There are multiple ways how you can approach it, depending on the kind of a problem. N+1 queries seem to be a pretty common issue, which is, fortunately, easy to address. However, sometimes you have some relatively simple-looking queries that seem to take way longer than they should be, indicating that they might require some optimization. The best way to improve such queries is adding a proper index. [more inside]
Learning How To Deploy Rails
This article is about deployment tools when we deploy Rails app such as Nginx, Passenger and Capistrano. It give you a brief introduction of these tools and the common features of them! https://medium.com/@johnsonzhan/learning-how-to-deploy-rails-bd5f59359a70
Metaprogramming: RUBY HOOK METHODS
Ruby comes with a bunch of hook methods that allow you to manipulate classes, modules and objects on the fly. [more inside]
How Ruby on Rails Speeds Up the Launch of Your Ecommerce Store
In this article, we review all the existing tools in Ruby on Rails that help developers and business owners launch an ecommerce store within short timeframe and with minimum efforts: https://rubygarage.org/blog/launch-online-store-with-ruby-on-rails
[Podcast] Ruby Rogues - How to Contribute to Ruby with Sihui Huang
In this episode of Ruby Rogues, the panel talks to Sihui Huang about his article “How to Contribute to Ruby”. Sihui is currently a back-end engineer at Gusto, which is a startup that works with payroll, benefits, and HR for companies. They talk about her experience in the programming world, why she chose to work with Ruby, and they touch on her article and why she decided to write it. They also touch on the three focuses for Ruby 3, if she thinks Ruby has a long time future, and more! [more inside]
tabreader - read in tabular datafiles in text in the tab format; incl. why Tab != CSV
Hello, I’ve put together a new library / gem, that is, tabreader - that lets you read in tabular datafiles in text in the tab format; yes, uses values = line.split("/t") or use the packaged up TabReader.parse_line( ... ) or any of the convenience helpers incl. TabHashReader.parse for returning hashes (with named value pairs) instead of arrays (with a list of values by position/index). The readme includes why CSV.read( col_sep: "\t", quote_char: "∅" ) is NOT recommended and why tab is its own (simpler) format than the classic comma-separated values (csv) format. Happy data wrangling with ruby. Cheers. Prost.
Adding Custom Search Bar To ActiveAdmin
Learn how to add a custom search bar in ActiveAdmin https://blog.kiprosh.com/adding-custom-search-bar-to-activeadmin/
Whyday is Sunday! #BeChunky
Learn about Whyday at @celebratewhyday: https://twitter.com/celebratewhyday
Ruby logs and puts not shown in docker container logs
Given you are using Ruby 2.5.1 Docker image in Rails project, you may notice that no logs are beeing output to docker stdout (or docker compose stdout) output even when you configure your logger to be logger = Logger.new(STDOUT). [more inside]
I share a Ruby tip a day
I have gathered ruby tips for a few years. Now I want to give back and I created a twitter account and a newsletter where I share every day a ruby tip, in less than 20 lines, for beginners and experienced developers. [more inside]
My Best Career Move
Joining my local Ruby user group was the best career move I ever made. It made me a better dev, got me networking, and even got me work: https://aaronlasseigne.com/2018/08/15/my-best-career-move/
Guide to Upgrade Rails from 5.1 to 5.2
Upgrade to the latest Rails version: https://www.ombulabs.com/blog/rails/upgrades/upgrade-rails-from-5-1-to-5-2.html
Error Handling in Ruby: Part II
In this article, we’re going to explore the following topics: [more inside]
A Short Love Story about Adyen and Service Objects
Tutorial about integrating Rails application with Adyen payments with service objects. https://www.netguru.co/codestories/a-short-love-story-about-adyen-and-service-objects
How to use trained Keras and TensorFlow machine learning models within Ruby on Rails
So you’ve built and tuned your machine learning model using Keras with TensorFlow backend. Now you want to deploy it to production so it’s available for use within Ruby on Rails. [more inside]