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 

zhengjia

=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')

natritmeyer

class RSpec::Core::Example
  def passed?
    @exception.nil?
  end
  
  def failed?
    !passed?
  end
end

mathewbyrne

function slugify(text)
{
  return text.toString().toLowerCase()
    .replace(/\s+/g, '-')           // Replace spaces with -
    .replace(/[^\w\-]+/g, '')       // Remove all non-word chars
    .replace(/\-\-+/g, '-')         // Replace multiple - with single -
    .replace(/^-+/, '')             // Trim - from start of text
    .replace(/-+$/, '');            // Trim - from end of text
}

joshj

/* 
    Node.js, express, oauth example using Twitters API
    
    Install Node.js:
        curl -0 http://nodejs.org/dist/v0.6.11/node-v0.6.11.tar.gz
        tar -zxf node-v0.6.11.tar.gz
        cd node-v0.6.11
        ./configure
        make
        make install

gorlum0

#!/usr/bin/env python
"""(c) gorlum0 [at] gmail.com"""
import random
from sys import maxsize as inf

def merge_sort(A):
    """merge-sort which counts inversions"""
    def merge(L, R):
        m = len(L)-1
        B = []

andreyvit

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

slattery

-- I'd gladly pay you Tuesday for a hamburger today!
-- OK, see you next Tuesday.

SELECT * 
FROM generate_series
(
    current_date + '1 day'::interval, -- in case now() is same dow
    current_date + '7 days'::interval, 
    '1 day'
) as s(a)

possibilities

From Meteor's documentation:

In Meteor, your server code runs in a single thread per request, not in the asynchronous callback style typical of Node. We find the linear execution model a better fit for the typical server code in a Meteor application.

This guide serves as a mini-tour of tools, trix and patterns that can be used to run async code in Meteor.

Basic async

Sometimes we need to run async code in Meteor.methods. For this we create a Future to block until the async code has finished. This pattern can be seen all over Meteor's own codebase: