ryanb

Creating a Multi Page Form in Rails

Creating a multi-step wizard-like form is pretty difficult in Rails. 
Especially when trying to apply REST and validations. There are many 
different approaches to this problem, and the right one depends largely 
on your application details. Here are four options, and then my final 
recommendation. Skip to that if you're in a hurry.

1. Create the model at the beginning on the first page of the form, and 
have each successive page update the model. Validations are tricky 

senko

#!/bin/bash
#
# Watch current directory (recursively) for file changes, and execute
# a command when a file or directory is created, modified or deleted.
#
# Written by: Senko Rasic <[email protected]>
#
# Requires Linux, bash and inotifywait (from inotify-tools package).
#
# To avoid executing the command multiple times when a sequence of

danott

#!/usr/local/bin/ruby
puts "Running application"

class App

  def initialize(args)
  end

  def action(input)
    "input was #{input}"

chetan

YARD CHEATSHEET http://yardoc.org

May 2020 - updated fork: https://gist.github.com/phansch/db18a595d2f5f1ef16646af72fe1fb0e

cribbed from http://pastebin.com/xgzeAmBn

Templates to remind you of the options and formatting for the different types of objects you might want to document using YARD.

Modules

amir20

#!/usr/bin/ruby

if ARGV.size.zero?
  puts %Q[
    Usage:
      ./to_csv.rb file.yml > out.csv
  ]
  exit
end

them0nk

#Model 

@user.should have(1).error_on(:username) # Checks whether there is an error in username 
@user.errors[:username].should include("can't be blank")  # check for the error message 

#Rendering
response.should render_template(:index)

#Redirecting 
response.should redirect_to(movies_path)

HTMLsauce

<snippet>
	<content><![CDATA[
 <!-- TODO: ${1:message} -->
]]></content>
	<!-- Optional: Set a tabTrigger to define how to trigger the snippet -->
	<tabTrigger>to</tabTrigger>
	<!-- Optional: Set a scope to limit where the snippet will trigger -->
	<!-- <scope>source.python</scope> -->
</snippet>

pwc3

tell application "Calendar"
    -- delete everything from the destination calendar
    -- TODO: Change "Destination Calendar" to be the name of your destination calendar
    repeat with anEvent in (get events of calendar "Destination Calendar")
        delete anEvent
    end repeat
    
    -- copy all events from the source calendar to the destination
    -- TODO: Change "Source Calendar" to be the name of your source calendar
    -- TODO: Change "Destination Calendar" to be the name of your destination calendar

iwan

Routes file (routes.rb):

resources :data_loaders do
  collection do
    delete 'multiple_destroy'
  end
end

The controller:

slindberg

/**
  Ember Data: Dependent Relationships

  This package extends Ember Data to support creating relationships
  where a model's dirty state depends not only on its own attributes
  but on the dirty state of models in dependent relationships as well.

  ```javascript
  App.Thing = DS.Model.extend({
    name     : DS.attr('string'),