acidlabs-snippets

def change
  add_column :table_name, :column_name, :column_type, default: 'default value'
  remove_column :table_name, :column_name
  rename_column :table_name, :old_name, :new_name
  change_column :table_name, :column_name, :column_type
end

acidlabs-snippets

upstream app_name {
        server 127.0.0.1:4000; #port examples
        server 127.0.0.1:4001;
}

server {
        server_name example.com;
        listen 80;
        access_log <acces_log_path>;
        error_log <error_log_path;

acidlabs-snippets

#!/usr/bin/env ruby
#
tests = [
  {:name => "RSPEC", :command => "rake spec"},
  {:name => "JASMINE", :command => "jasmine-headless-webkit --color"}
]

tests.each do |test|
  puts "\e[33mEXECUTING #{test[:name]} TESTS\e[0m"
  test[:result] = system test[:command]

acidlabs-snippets

module ModuleName
  extend ActiveSupport::Concern
  module InstanceMethods
    def destroy
      run_callbacks :destroy do
        if self.respond_to? :deleted
          self.deleted = true
          self.save(validate: false)
        else
          raise "deleted attribute not found in model"

acidlabs-snippets

### This gist outlines a generic implementation of multistage deployment with Capistrano for Rails 3.1+.
#
# Usage:
#
#   cap #{stage} deploy:setup
#   cap #{stage} deploy:cold
#   cap #{stage} deploy
#
# etc.

acidlabs-snippets

wget http://wkhtmltopdf.googlecode.com/files/wkhtmltopdf-0.9.9-static-amd64.tar.bz2 
tar xvjf wkhtmltopdf-0.9.9-static-amd64.tar.bz2
mv wkhtmltopdf-amd64 /usr/local/bin/wkhtmltopdf
chmod +x /usr/local/bin/wkhtmltopdf

acidlabs-snippets

# lib/rack/revision.rb
module Rack
  class Revision
    @@revision = nil
    File = ::File

    def initialize(app, &block)
      @app   = app
      @block = block
      @file  = File.join(Dir.pwd, 'REVISION')

acidlabs-snippets

pg_dump -Fc | gzip -9 -c > dumpfile.gz

acidlabs-snippets

#----------------------------------------------------------------------------
# Ignore these files when commiting to a git repository
#
# The original version of this file is found here:
# https://github.com/RailsApps/rails3-application-templates/raw/master/files/gitignore.txt
#
# Corrections? Improvements? Create a GitHub issue:
# http://github.com/RailsApps/rails3-application-templates/issues
#----------------------------------------------------------------------------

acidlabs-snippets

#------------------------------------------------------------------------------
# Returncode.
#------------------------------------------------------------------------------
function returncode
{
  returncode=$?
  if [ $returncode != 0 ]; then
    echo "[$returncode]"
  else
    echo ""