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Rails

Ruby on Rails (Rails) is a web application framework written in Ruby.
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Top 10 errors from 1000+ Ruby on Rails projects (and how to avoid them)

Nice post by our friends at Rollbar: We looked at our database of thousands of projects and found the top 10 errors in Ruby on Rails projects. We’re going to show you what causes them and how to prevent them from happening. If you avoid these "gotchas," it'll make you a better developer. I know many of these like the back of my hand. 🀣...😭

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Things I wish ActiveRecord had after using Ecto

Great list, and I agree with many of Vladimir's points. However, I have to admit that Ecto's take on preloading still bugs me after years of use. I find myself doing the preload dance all over the place even when I'm well aware of the performance issues around N+1 queries. I thought I'd get used to it over time, but it still irks me every time I see an Ecto.Association.NotLoaded exception.

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CanCanCan picks up where CanCan left off

Ryan Bates' unfortunate burnout-induced hiatus from open source left his projects unmaintaned. CanCan β€” the much beloved authorization gem for Ruby on Rails β€” was no exception. CanCan may be dead, but long live CanCanCan! This repo is a continuation of the dead CanCan project. Our mission is to keep CanCan alive and moving forward, with maintenance fixes and new features. Pull Requests are welcome! This is what I love about open source. Great ideas aren't bound to their creators. All it takes is one person who cares enough to pick up the torch and run with it.

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Rails 4.1 to get a Spring in its step

A lot of focus lately has been put on improving Rails' speed in dev mode. John Leighton's Spring gem is a result of some of that focus. It preloads your Rails application and keeps it running in the background so you don't need to boot it every time you run a test, rake task, or migration. As of this commit Spring will be installed by default on newly generated Rails 4.1 apps.

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View Rails debug messages in the browser console with Rconsole

Using log messages in Rails can be a huge timesaver when you are debugging. With Rconsole you can save even more time by having those messages appear in the browser console. Rconsole is a fairly new gem with a lot of potential. Installation is super simple. First add it to your Gemfile: group :development do gem 'rconsole', '~> 0.1.0' end Then run bundle install. Add to your layout view: javascript_include_tag(:rconsole) if Rails.env.development? To use Rconsole simply add rconsole.log messages where you would normally insert logger.debug, etc. def show rconsole.log 'Hello, Changeloggers!' ... end Now your browser will display your messages: In addition to debugging, Rconsole is particularly useful when working with students or new rubyists to show the connection between what's happening in the controller and the view. The entire code base is open source and available on GitHub.

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A startup template for Ruby on Rails 4 applications

Way back in January, I wrote a blog post called "Rails has two default stacks". In it, I discussed how people like to customize the defaults that Ruby on Rails gives you. Your company might prefer Postgres/HAML/RSpec, for example, over the default MySQL/ERB/MiniTest. There's an under-used feature of Rails that allows you to automate the creation of your own stack: templates. Check it: $ rails --help Usage: rails new APP_PATH [options] Options: -r, [--ruby=PATH] # Path to the Ruby binary of your choice # Default: /opt/rubies/ruby-2.0.0-p195/bin/ruby -m, [--template=TEMPLATE] # Path to some application template (can be a filesystem path or URL) Application template? Yep. There's very little documentation on this feature, unfortunately. There is a work in progress Rails Guide that gives some answers, but it's not done yet. Anyway, the TL;DR is this: you can write a little script to help initialize a Rails app just the way you want to. And Rails startup template is exactly that. Here's some of the things it gives you out of the box: Adds analytics-ruby, simple_form, uuidtools, rspec, guard-rspec, and bourbon gems, as well as a few more. Creates a new git repository, and optionally a new one on GitHub Sets up foreman for easy environment variable and background service config. Removes include_tree . from your application.css, since the author prefers to require things manually. There are some other features, as well. Check it out on GitHub and vote it up on Hacker News.

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