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web: bundle exec unicorn -p $PORT -c ./config/unicorn.rb

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#Deploy and rollback on Heroku in staging and production
task :deploy_staging => ['deploy:set_staging_app', 'deploy:push', 'deploy:restart', 'deploy:tag']
task :deploy_production => ['deploy:set_production_app', 'deploy:push', 'deploy:restart', 'deploy:tag']

namespace :deploy do
  PRODUCTION_APP = 'YOUR_PRODUCTION_APP_NAME_ON_HEROKU'
  STAGING_APP = 'YOUR_STAGING_APP_NAME_ON_HEROKU'

  task :staging_migrations => [:set_staging_app, :push, :off, :migrate, :restart, :on, :tag]
  task :staging_rollback => [:set_staging_app, :off, :push_previous, :restart, :on]

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How to install MongoDB 2.0 on Mac OS X (>= Leopard)

Procedure

The whole install procedure is like the following.
You would have to do 7 steps.

1. Download the latest tar file, and expand it.
2. Move it to /usr/local/, and make a symbolic link to the folder.
3. Add path to MongoDB binaries.
4. Make an user that "mongod" runs on, and group that owns the user.

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namespace :db do
  desc "Erase and fill the database with test data"
  task :populate => :environment do
    require 'populator'
    require 'faker'
    
    [UserGroup, User, Order].each(&:delete_all)
    
    # Generates 8 user groups with 0 to 150 users. 
    # Each user has 0 to 7 orders..

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These are some of my (Ryan Bates) favorite gems to use for various tasks:

• JavaScript: jQuery with jquery-rails
• Pagination: Kaminari
• Testing: RSpec, Cucumber and Capybara
• Factories: Factory Girl
• Authentication: Nifty Generators and Omniauth
• Authorization: CanCan
• File Attachments: Carrierwave
• HTML/XML Parsing: Nokogiri

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#!/bin/sh

### BEGIN INIT INFO
# Provides:          unicorn
# Required-Start:    $local_fs $remote_fs $network $syslog
# Required-Stop:     $local_fs $remote_fs $network $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts the unicorn web server
# Description:       starts unicorn

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<!-- layout file -->
<% if current_user %>
  Welcome <%= current_user.username %>. Not you? <%= link_to "Log out", logout_path %>
<% else %>
  <%= link_to "Sign up", signup_path %> or <%= link_to "log in", login_path %>.
<% end %>

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## Inside: app/middleware/flash_session_cookie_middleware.rb

require 'rack/utils'
 
class FlashSessionCookieMiddleware
  def initialize(app, session_key = '_session_id')
    @app = app
    @session_key = session_key
  end
 

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#!/bin/bash
### BEGIN INIT INFO
# Provides:          APPLICATION
# Required-Start:    $all
# Required-Stop:     $network $local_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start the APPLICATION unicorns at boot
# Description:       Enable APPLICATION at boot time.
### END INIT INFO

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#!/bin/sh
#
# init.d script for single or multiple unicorn installations. Expects at least one .conf 
# file in /etc/unicorn
#
# Modified by jay@gooby.org http://github.com/jaygooby
# based on http://gist.github.com/308216 by http://github.com/mguterl
#
## A sample /etc/unicorn/my_app.conf
##