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.

mpolden

# files/env:
Defaults env_keep += "SSH_AUTH_SOCK"

# tasks/main.yml
- name: ensure sudo keeps SSH_AUTH_SOCK in environment
  copy: src=env
        dest=/etc/sudoers.d/env
        mode=0440
        owner=root
        group=root

pjdietz

Source

• Open Terminal. You will need to convert the file to XML (from binary) so you can edit it in TextEdit. The command you need is plutil -convert xml1 ~/Library/Preferences/com.apple.spotlight.plist
• Edit this file in a text editor. Just before at the bottom, add the following:

<dict>
    <key>enabled</key>
    <false/>
 name

jonah-williams

test:
  override:
    - bundle exec rspec spec

deployment:
  acceptance:
    branch: master
    commands:
      - ./script/heroku_deploy.sh <ACCEPTANCE_HEROKU_APP>:
          timeout: 300

benschwarz

{
  "directory": "vendor/assets/components"
}

ngauthier

Installs ruby-2.0.0-p0 on ubuntu via checkinstall so it's in your package manager and you can remove it.

Quick install:

curl -L https://gist.github.com/ngauthier/5039249/raw/1868bf4714052b40e2bb7fdf3f40fbeb5d730bca/ruby-2-install-ubuntu.sh | bash -s

wrburgess

##Refs

• wkhtmltopdf
• wicked_pdf
• Blog: Generate PDFs in Rails 3.2

Install wicked_pdf

Add to Gemfile: gem 'wicked_pdf'

klauswuestefeld

We couldn’t find that file to show.

practicingruby

Inheritance is a key concept in most object-oriented languages, but applying it skillfully can be challenging in practice. Back in 1989, M. Sakkinen wrote a paper called Disciplined inheritance that addresses these problems and offers some useful criteria for working around them. Despite being more than two decades old, this paper is extremely relevant to the modern Ruby programmer.

Sakkinen's central point seems to be that most traditional uses of inheritance lead to poor encapsulation, bloated object contracts, and accidental namespace collisions. He provides two patterns for disciplined inheritance and suggests that by normalizing the way that we model things, we can apply these two patterns to a very wide range of scenarios. He goes on to show that code that conforms to these design rules can easily be modeled as ordinary object composition, exposing a solid alternative to tradi

brookr

# From the project root

rvm env -- `rvm current` >> .powenv