Ruby(MRI),Rails2.3.5,Java1.6はインストール済みからスタート (Java1.5な場合は1.5でもOKかもしれないのでそのままやってみて上手く出来たら教えてください。) % java -version java version "1.6.0_03-p3" Java(TM) SE Runtime Environment (build 1.6.0_03-p3-landonf_19_aug_2008_14_55-b00) Java HotSpot(TM) Server VM (build 1.6.0_03-p3-landonf_19_aug_2008_14_55-b00, mixed mode) % ruby -v ruby 1.8.7 (2010-01-10 patchlevel 249) [i686-darwin8] % rails -v Rails 2.3.5 go

18 October 2006 — The "Fat Controller" anti-pattern is shown and dissected, and the reader is taken through the process of refactoring it into a more readable, maintainable, and testable solution — 5-minute read When first getting started with Rails, it is tempting to shove lots of logic in the view. I’ll admit that I was guilty of writing more than one template like the following during my Rails

Matthew Paul Moore About Me Contact Me Ruby on Rails Code Quality Checklist Emeryville, CA: September 16, 2008 In my experience, Ruby and Ruby on Rails has been one of the most difficult language/framework combinations to truly master .  For someone who grew up on C, C++ & Java in the majority of their training, Ruby has hugely different (and better!) ways of OO design, and the Rails framework has

It looks like Nick Kallen’s wildly popular has_finder plugin will be making its way into Rails 2.x in the form of named_scope. Observe: class User < ActiveRecord::Base named_scope :active, :conditions => {:active => true} named_scope :inactive, :conditions => {:active => false} named_scope :recent, lambda { { :conditions => ['created_at > ?', 1.week.ago] } } end # Standard usage User.active # same

ActiveRecord を継承しないモデルに form からの入力値を代入したい場合、テンプレートに ＜%= form_for @model %＞ を使うとエラーになってしまいます。これは、Ruby on Rails ではO/Rマッパーの ActiveRecordとテンプレートのActionView等は別のモジュールになっていますが、かなり依存した関係にあるからです。 このような場合、以下のメソッドをモデルに追加すると ActiveRecord同様に form_for が使えるようになります。 to_param Scaffold で作ったコードを見ると redirect_to(@model) のようなコードがありますがこれは redirect_to(@model.to_param) と同等です。 to_paramメソッドはそのモデルのインスタンスを識別する id 、例えばプライマリーキー

Getting started Here’s how to get rolling: Install the gems $ sudo gem install google-appengine Assign an app identifier Simply create an application at appsopt.com, we'll refer to that as my-app in this document. Generate your rails app $ rails my-app; cd my-app; Generate a rackup file In the same folder, save this as config.ru. require 'appengine-rack' AppEngine::Rack.configure_app( :applicatio

今日は layout ⊃ template ⊃ partial のうちの template ⊃ partial の関係を見ていきたいと思います。 ちなみに layout ⊃ template の関係を見たいひとはこちらからどうぞ。 template ファイルの中で、render(:partial ... を使えば、画面表示の一部分(partial)を共通に使い回すことができます。 平たくいうと、template が partial を使い回すということです。 早速例をみてみましょう。 app/controller/galileo_controller.rb というコントローラに class GalileoController < ApplicationController def list_males @my_males = Person.find_all_by_gender("m") e

It seems that a lot of people are confused about what to do when it comes to requiring authentication for their Ruby on Rails application. Here are a few links that helped me figure things out. 1. Authlogic Authlogic is the authentication plugin for Ruby on Rails that I use when I need one. It apparently has plugins that extend it for role-based permissions, but I haven’t used any of them, opting

I work with Ruby every single day, and over time have come to really enjoy using it. Here's a list of some specific things that I really like about Ruby. Some of them are obvious, and some are shared with other languages. The purpose is to share things I like about Ruby, not to compare and contrast with any specific language. 1. Dynamic Typing There are very good things about statically typed lang

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