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What if you didn’t have to worry about whitelisting form fields any more, in Rails 3 or Rails 4? The signed_form gem is a clever solution to keeping form fields and controller parameters synchronized.
RVM’s release manager, Michał Papis, just made a blog post about the addition of package manager integration to RVM. RVM will know how to use the system package manager to install missing libraries that it needs in order to build Ruby 2.0.
Richard Nystrom dropped us a line yesterday to let us know about two convenient document conversion gems he’s worked on. First there’s the libreconv gem which allows you to convert from microsoft word to PDF format.
Richard Nystrom also worked on the Kristin gem, which uses pdf2htmlEX to convert PDF documents to HTML.
It used to be you had to program a microcontroller like Arduino to do any work with LEDs and motors and so on. But the low-cost Raspberry Pi computer lets you use its GPIO pins to do many of the same things. And Ruby is easy to install on the Pi. With the “pi_piper” library, you can handle GPIO input events and trigger output using Ruby.
Postgres’s hstore module provides you the hstore datatype, which allows you to define a column in your postgres database that contains key/value pairs, for schema-less datastorage. Joe Hirn wrote a nice blog post showing how you can use hstore with Rails to do some really nice Single Table Inheritance tricks.
Have a bunch of strings that you need to determine the sentiment of? Like, maybe you need to find out if some Twitter users are happy or annoyed? How about automatically analyzing their posts using the Sentimental gem? You feed Sentimental a dictionary file, and it uses those keywords to rank whether a post is positive, negative, or neutral.
The Sprockets library gave us the asset pipeline with Rails… compiling our CoffeeScript, SASS, and other formats… And now the sinatra-asset-pipeline gem promises to easily give you all this functionality for your Sinatra apps.
Create your indexes concurently with Rails 4, Exceptional joins the Rackspace family, Vagrant abandons rubygems, mobile is just another view into your app, Igata is open sourced, and a fancy teacup for your RubyMotion views all in this episode of Ruby5!
This week we have Rails 4 undead cowboys, security updates, custom IRBs, local pull requests, reasons to use Ruby, ways to optimize it and read its documentation, and a couple of great conferences.
Searching your gem code, customizing your IRB, dealing with flashes and sessions on a mixed-version load balanced rails upgrade, RTanque, 3.2.13 performance regressions, Chart.js, and other goodness on this edition of Ruby5
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