JoshvaR88

Render and Redirect

The normal controller/view flow is to display a view template corresponding to the current controller action, but sometimes we want to change that. We use render in a controller when we want to respond within the current request, and redirect_to when we want to spawn a new request.

Render

The render method is very overloaded in Rails. Most developers encounter it within the view template, using render :partial => 'form' or render @post.comments, but here we'll focus on usage within the controller.

:action

JoshvaR88

Render and Redirect

The normal controller/view flow is to display a view template corresponding to the current controller action, but sometimes we want to change that. We use render in a controller when we want to respond within the current request, and redirect_to when we want to spawn a new request.

Render

The render method is very overloaded in Rails. Most developers encounter it within the view template, using render :partial => 'form' or render @post.comments, but here we'll focus on usage within the controller.

:action

JoshvaR88

Render and Redirect

The normal controller/view flow is to display a view template corresponding to the current controller action, but sometimes we want to change that. We use render in a controller when we want to respond within the current request, and redirect_to when we want to spawn a new request.

Render

The render method is very overloaded in Rails. Most developers encounter it within the view template, using render :partial => 'form' or render @post.comments, but here we'll focus on usage within the controller.

:action

JoshvaR88

def triangle(a, b, c)
  validate_triangle!(a, b, c)
  identify_triangle_type(a, b, c)
end

def validate_triangle!(a, b, c)
  raise TriangleError if !possible_triangle?(a, b, c)
end

def identify_triangle_type(a, b, c)

JoshvaR88

#!/bin/bash

# install dependencies
apt-get update && apt-get upgrade
apt-get install build-essential bison openssl libreadline6 libreadline6-dev curl git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-0 libsqlite3-dev sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev ncurses-dev

# install RVM
bash < <(curl -s https://rvm.beginrescueend.com/install/rvm)

### as per RVM instructions (both files)

JoshvaR88

Originally published in June 2008

When hiring Ruby on Rails programmers, knowing the right questions to ask during an interview was a real challenge for me at first. In 30 minutes or less, it's difficult to get a solid read on a candidate's skill set without looking at code they've previously written. And in the corporate/enterprise world, I often don't have access to their previous work.

To ensure we hired competent ruby developers at my last job, I created a list of 15 ruby questions -- a ruby measuring stick if you will -- to select the cream of the crop that walked through our doors.

What to expect

Candidates will typically give you a range of responses based on their experience and personality. So it's up to you to decide the correctness of their answer.

JoshvaR88

require 'rubygems'
require 'twitter'

# see https://github.com/sferik/twitter

def twitter_client
  Twitter::REST::Client.new do |config|
    config.consumer_key = "XXXXXX"
    config.consumer_secret = "XXXXXX"
    config.access_token = "XXXXXX"

JoshvaR88

A Capistrano Rails Guide

by Jonathan Rochkind, http://bibwild.wordpress.com

why cap?

Capistrano automates pushing out a new version of your application to a deployment location.

I've been writing and deploying Rails apps for a while, but I avoided using Capistrano until recently. I've got a pretty simple one-host deployment, and even though everyone said Capistrano was great, every time I tried to get started I just got snowed under not being able to figure out exactly what I wanted to do, and figured I wasn't having that much trouble doing it "manually".

JoshvaR88

.pagination {
  display:inline-block;
  form {
    display: inline-block;
    margin:0;
    select {
      width:100px;
    }
  }
}

JoshvaR88

  # Based on https://gist.github.com/1205828, in turn based on https://gist.github.com/1182136
  class BootstrapLinkRenderer < ::WillPaginate::ActionView::LinkRenderer
    protected

    def html_container(html)
      tag :div, tag(:ul, html), container_attributes
    end

    def page_number(page)
      tag :li, link(page, page, :rel => rel_value(page)), :class => ('active' if page == current_page)