knowtheory

require 'dm-core'
require 'dm-migrations'

DataMapper.setup(:default, "mysql://localhost/test")

class TotallyContrivedForThisExample
  include DataMapper::Resource
  
  property :id,     Serial                  # already part of the primary key
  property :plerp,  String,   :key => true  # Adds this to the primary key

brianjlandau

Setup RSpec and Capybara on a new Rails engine

1. rails plugin new ENGINE_NAME --full --database=mysql

2. Add to gemspec:

s.add_development_dependency 'rspec-rails'
s.add_development_dependency 'shoulda-matchers'
s.add_development_dependency 'capybara'
s.add_development_dependency 'database_cleaner'

demisx

belongs_to:

1. Assigning an object to a belongs_to association does not automatically save the object. It does not save the associated object either.

has_one:

1. When you assign an object to a has_one association, that object is automatically saved (in order to update its foreign key).
2. In addition, any object being replaced is also automatically saved, because its foreign key will change too
3. If either of these saves fails due to validation errors, then the assignment statement returns false and the assignment itself is cancelled.
4. If the parent object (the one declaring the has_one association) is unsaved (that is, new_record? returns true) then the child objects are not saved. They will automatically when the parent object is saved.

wesbos

{
  "keys": ["tab"], 
  "command": "expand_abbreviation_by_tab", 

  // put comma-separated syntax selectors for which 
  // you want to expandEmmet abbreviations into "operand" key 
  // instead of SCOPE_SELECTOR.
  // Examples: source.js, text.html - source
  "context": [
    {

Evshved

###So you want to become a full-stack developer: What? Why?

• Guide to hiring a Ruby on Rails Developer

###For beginners:

• Great guide, made in the form of comics.
• Classic guide by Michael Hart Hart.
• This guide covers ways in which you can become a part of the ongoing development of Ruby on Rails.

jeroendesloovere

Redis Installation

1. Download and install Redis

Copy/paste the following code block into your terminal.

# Downloading latest
wget http://download.redis.io/redis-stable.tar.gz

kalpeshsingh

#!/bin/sh

branch="$(git rev-parse --abbrev-ref HEAD)"

# get computer name to append in Chime message
username=$USER

# a branch name where you want to prevent git push. In this case, it's "master"
if [ "$branch" = "master" ]; then
  echo "You can't commit directly to '"${branch}"' branch" # webstorm or intellij will show this as popup

phaistonian

#! /bin/bash
set -e
BRANCH=$(git rev-parse --abbrev-ref HEAD)

REMOTE=$(git remote get-url origin)
URL="$REMOTE/compare/$BRANCH?expand=1";

if [ "$BRANCH" = "master" ]
then
echo You must checkout a feature branch first