speedmax

require 'net/dns/resolver'

# Custom Domain
#
#   Require net-dns gem
#
#   A Rack middleware to to resolve the custom domain to original subdomain 
#   for your multi telent application.
#
#   It's all transperant to your application, it performs cname lookup and 

crofty

# Postgres install on ubuntu
sudo apt-get install postgresql

# Log in with
sudo -u postgres psql postgres

# change password by issuing 
\password postgres

# create databases with

stakes

module AttributeSerializer
 
  module ActiveRecordExtensions
 
    module ClassMethods
 
      def serializeable(serialized, serialized_accessors={})
        serialize serialized, serialized_accessors.class
 
        serialized_attr_accessor serialized, serialized_accessors

dbi

<!-- A scaffolded edit view converted to mustache -->

<h1>Editing post</h1>

{{#form}}
  {{#errors?}}
    <div id="error_explanation">
      <h2>{{error_header}}</h2>
    </div>
    <ul>

juggy

# create the template
template = PageOfflineTemplate.new
template.quote = quote
template.pages = quote.build_pages
        
# Here I render a template with layout to a string then a PDF
pdf = PDFKit.new template.render_to_string(:template=>"quotes/review.html.haml")
        

Marchino

# Lets you call object.rsend('method1.method2.method3') instead of object.send('method1').send('method2).send('method3)

class Object
  def rsend(method, *params)
    method.to_s.split('.').inject(self) { |obj, mth| obj.send(mth.to_sym, *params) }
  end
end

agnellvj

Friendly URLs

By default, Rails applications build URLs based on the primary key -- the id column from the database. Imagine we have a Person model and associated controller. We have a person record for Bob Martin that has id number 6. The URL for his show page would be:

/people/6

But, for aesthetic or SEO purposes, we want Bob's name in the URL. The last segment, the 6 here, is called the "slug". Let's look at a few ways to implement better slugs.

jasoncodes

class CreateItemChildrenCountView < ActiveRecord::Migration
  def self.up
    execute <<-SQL
      CREATE VIEW item_children_count AS
      SELECT parent_id AS item_id, COUNT(*) as children_count
      FROM items GROUP BY parent_id;
    SQL
  end

  def self.down

boriscy

#To install ruby-debug on Ubuntu ruby-1.9.3 you need to download from http://rubyforge.org/frs/?group_id=8883

linecache19-0.5.13.gem 
ruby_core_source-0.1.5.gem 
ruby-debug19-0.11.6.gem 
ruby-debug-base19-0.11.26.gem

#Then in your console

export RVM_SRC=/your/path/to/ruby-1.9.3

ryanlecompte

# alternative to what is explained in the article Ruby Blocks as Dynamic Callbacks: 
# http://www.mattsears.com/articles/2011/11/27/ruby-blocks-as-dynamic-callbacks

class Twitter
  def tweet(msg, &block)
    proxy = DSL[block]
    publish(msg)
    proxy.respond_with(:success)
  rescue => e
   proxy.respond_with(:failure, e.message)