dlo

This gist outlines how to resize a view when a keyboard appears using Auto Layout (there are a bunch of code samples out there that manually adjust the view's frame, but that's just so 2013). The method I outline below works universally on both iPhone and iPad, portrait and landscape, and is pretty darn simple.

Setting Up

The first thing to do is to define our containing view controller, the view, and the bottom constraint that we'll use to adjust its size.

Here's HeightAdjustingViewController.h. We don't need to expose any public properties, so it's pretty bare.

mattt

Generate the list yourself:

$ cd /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS*.sdk/System/Library/Frameworks/UIKit.framework/Headers
$ grep UI_APPEARANCE_SELECTOR ./*     | \
  sed 's/NS_AVAILABLE_IOS(.*)//g'     | \
  sed 's/NS_DEPRECATED_IOS(.*)//g'    | \
  sed 's/API_AVAILABLE(.*)//g'        | \
  sed 's/API_UNAVAILABLE(.*)//g'      | \
 sed 's/UI_APPEARANCE_SELECTOR//g' | \

Gozala

--
-- Sending Twitter Tweets from a Lightroom Plugin
-- http://regex.info/blog/lua/twitter
--
--
-- Copyright 2009-2010 Jeffrey Friedl
-- (jfriedl@yahoo.com)
-- http://regex.info/blog/
--
-- Version 5 (Dec 17, 2010)

julien51

local tumblrName = "" -- Name of the Tumblr blog where the content will be posted

-- Extrat the data from the JSON notification and prepare it to be used as a Tumblr 'quote'.
local jsonContent = json.parse(request.body) 
local quote = jsonContent.items[1].title
local sourceTitle = jsonContent.title 
local sourceLink = jsonContent.standardLinks.self[1].href

-- Authenication against the Tumblr API. You will need to create an application and grab the OAuth access token.

ryanb

My issues with Modules

In researching topics for RailsCasts I often read code in Rails and other gems. This is a great exercise to do. Not only will you pick up some coding tips, but it can help you better understand what makes code readable.

A common practice to organize code in gems is to divide it into modules. When this is done extensively I find it becomes very difficult to read. Before I explain further, a quick detour on instance_eval.

You can find instance_eval used in many DSLs: from routes to state machines. Here's an example from Thinking Sphinx.

class Article < ActiveRecord::Base

clarkware

#!/usr/bin/env ruby

# API Documentation at http://api.wikia.com/wiki/LyricWiki_API

require 'open-uri'
require 'json'
require 'tmpdir'

ARTIST = "Johnny Cash"

boone

# Monkey patch for CVE-2012-2695 on Rails 2.3.14
# put this file in your config/initializers directory
# comments/corrections: https://gist.github.com/2921706

# Ruby on Rails SQL Injection
# based on a patch from @presidentbeef
# https://rubyonrails-security.googlegroups.com/attach/aee3413fb038bf56/2-3-sql-injection.patch?view=1&part=3

module ActiveRecord
  class Base

boone

# Monkey patch for CVE-2012-2660 and CVE-2012-2694 on Rails 2.3.14
# put this file in your config/initializers directory
# comments/corrections: https://gist.github.com/2854095

# Strip [nil] from parameters hash
# based on a pull request from @sebbacon
# https://github.com/rails/rails/pull/6580

module ActionController
  class Request < Rack::Request

wojtekmach

require 'minitest/autorun'

module MiniTest::Assertions
  def assert_changes(obj, method, exp_diff)
    before = obj.send method
    yield
    after  = obj.send method
    diff = after - before

    assert_equal exp_diff, diff, "Expected #{obj.class.name}##{method} to change by #{exp_diff}, changed by #{diff}"

abner

I'm a fan of MiniTest::Spec. It strikes a nice balance between the simplicity of TestUnit and the readable syntax of RSpec. When I first switched from RSpec to MiniTest::Spec, one thing I was worried I would miss was the ability to add matchers. (A note in terminology: "matchers" in MiniTest::Spec refer to something completely different than "matchers" in RSpec. I won't get into it, but from now on, let's use the proper term: "expectations").

Understanding MiniTest::Expectations

Let's take a look in the code (I'm specifically referring to the gem, not the standard library that's built into Ruby 1.9):

# minitest/spec.rb

module MiniTest::Expectations