The has_finder gem has been added to Rails with a different name: named_scope

For better understand let go through the following example:

class Article < ActiveRecord :: Base
named_scope :published, :conditions => {:published => true}
named_scope :containing_the_letter_c, :conditions => "author LIKE '%c%’"
end

Article.published.paginate(:page => 1)

Figure A Back yard

For the third year in a row, it’s the Seattle.RBBQ at Geoff’s house in Seattle!

This is the presentation that I gave to Silicon Valley Ruby on Rails. Some of the topics covered were:

I recently packed up everything I own and moved. I'd lived in my old place for about nine years and I have the packrat gene on both sides of the family tree, so I had a lot of crap to sort through to figure out what to move and what to trash, as well as which box what should go in. Now that I'm here in the new place, I've had to sort through the remaining stuff to figure out where it all goes. So you might appreciate that sorting has been on my mind a lot lately. (See? It's a topical tie-in. I don't do those often, so I hope it wasn't too awkward.)

After 5 long years of using the same old blog theme, which I’d handcrafted from scratch way back in 2004, I’ve finally got down to refreshing it to a more contemporary look. I’ve also updated the woefully outdated About page.

Here’s a before and after shot:

Since we have been using I18n in Partigi for the last months we have notice that we were always repeating ourselves when localising a sentence like this:

This film has been saved by 4 friends

What is special in this sentece is that, depending on the number of friends that saved the film, the sentence could be "This film has been saved by one friend". It can be solved with pluralize helper, but it requires the counter to be at the beginning of the sentence.

I have released a new Plugin for Rails, called Correct-Format.
Github URL: github.com/mendable/correct-format

This plugin allows you to automatically correct simple user input mistakes
and format user-input without raising an ActiveRecord Error and without
inserting inconsistently formatted data into your database.

Try this.

5.times do
  putc('.')
  sleep(2)
end

I was hoping that I will get a dot after every two seconds. But that’s not what happens when you run the code. I see nothing for first 10 seconds then I see five dots in one shot. This is not what I wanted.

Update: thanks to Jon Wood aka jellybob, a prototype demonstration has been added, which is even better than my original jQuery btw as it degrades gracefully. Check it out in the ‘prototype-unobtrusive’ directory.

Wikipedia defines memoization as “an optimization technique used primarily to speed up computer programs by having function calls avoid repeating the calculation of results for previously-processed inputs.”. This typically means caching the returning value of a function in a dictionary of sorts using the parameters passed to the function as a key. This is done in order to reuse that returning value immediately without calculating it again, when the function is invoked with the same arguments.

Introduction

This article will guide you through the process of installing Ruby on Rails, and any other software that is required to begin using it.

This is the first of two articles, Part 1 will show you how to install Ruby on Rails (on Windows) and Part 2 will show you how to create a basic blog.

In order to create a web application with Rails, you will need the following software:

Xavier Noria (code) and José Espinal (design) have created an awesome code contributor index for Rails core submissions. It’s being updated automatically every night and tracks the number of commits and which particular commits to individuals in the community. You can even track the commits over time, as in who’s been most active this month.