amiel

class WidgetsController < ApplicationController
  def create
    @widget = Widget.new(params[:widget])
    
    if @widget.save
      SpamMailer.widget_spam(@widget).deliver
      redirect_to widget, notice: 'Widget created'
    else
      render 'new'
    end

amiel

 module ActiveAdmin
   module ViewHelpers
     module FormHelper

       def active_admin_form_for(resource, options = {}, &block)
         options = Marshal.load( Marshal.dump(options) )
         options[:builder] ||= ActiveAdmin::FormBuilder
+        resource = resource.respond_to?(:model) ? resource.model : resource
         semantic_form_for resource, options, &block
       end

amiel

// I have a RestKitManager.m that holds general methods to help set up mappings and routings



@implementation RestKitManager

- (void)initialize {
  RKObjectManager *objectManager = [RKObjectManager managerWithBaseURL:[NSURL URLWithString:[AppDelegate appUrlForKey:BASE_URL_KEY]]];
  [RKObjectManager setSharedManager:objectManager];

amiel

class MyException < StandardError
  attr_reader :arbitrary_value
  def initialize(message, arbitrary_value)
    super(message)
    @arbitrary_value = arbitrary_value
  end
end

e = (raise MyException.new('this is the regular message', 'my value') rescue $!)

amiel

with_status

Use with_status to run commands and have your arduino let you know when they are done.

with_status starts by turning the LED off before running your command. Once your command completes, it will turn the LED on. Green if the command succeeded, and red if it failed.

I use this with long running commands (such as deploying to heroku), so I can start working on something else without forgetting about my process.

amiel

This patch to guard is required: https://github.com/amiel/guard/commit/7d25f11a21400e836bb30736b814d4f2f7cebe2dif

UPDATE: This has been merged to guard master.

Put this in your Gemfile:

# The changes required are here: https://github.com/guard/guard/pull/407
gem 'guard', git: 'https://github.com/guard/guard.git'

amiel

class User < ActiveRecord::Base
  # t.string :status, default: 'submitted'

  # Contrived example
  def self.status_options
    %w[approved rejected submitted]
  end
end

amiel

class ApplicationDecorator < Draper::Base


  # See +ApplicationDecorator.humanize+
  def humanize(attribute, key = model.send(attribute), default = key.to_s.humanize)
    self.class.humanize attribute, key, default
  end

  # By default, humanize the attributes listed.
  #

amiel

class Task < ActiveRecord::Base
  belongs_to :project
  
  validate do
    if project.status != 'funded'
      errors.add(:base, 'Project must be funded')
    end
  end

end

amiel

2013-01-25 18:06:55.146 Stride[86479:c07] *** -[__NSCFCalendar components:fromDate:]: date cannot be nil
I mean really, what do you think that operation is supposed to mean with a nil date?
An exception has been avoided for now.
A few of these errors are going to be reported with this complaint, then further violations will simply silently do whatever random thing results from the nil.
Here is the backtrace where this occurred this time (some frames may be missing due to compiler optimizations):
(
  0   CoreFoundation                      0x02425a75 -[__NSCFCalendar components:fromDate:] + 85