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Category: Ruby on Rails
Date: 2013-07-12 16:04

Use Delayed Job with Devise mailers

In order to have Devise send its emails by background process application Delayed Job just include one line of code after your Devise declaration in your user model. Devise uses one method for all mailers. So all modules make use of it, including extensions like DeviseInvitable (check their code for this method!).

Code:  Select all
class User < ActiveRecord::Base
  devise :database_authenticatable, :recoverable, :lockable, :trackable, :timeoutable, :invitable
  # Use delayed job to send emails from Devise and DeviseInvitable
  handle_asynchronously :send_devise_notification, :queue => 'devise'

Tested on Rails 3.2.13 with Devise 2.2.4 and Delayed Job 3.0.5

Category: Ruby on Rails
Date: 2012-05-04 22:45

Using SimpleCov with FactoryGirl

FactoryGirl is a great replacement for your Ruby-on-rails fixtures. They offer more flexibility for generating stubs and mack-ups for your automated testing.

SimpleCov is the test coverage tool for Ruby 1.9.x (Use RCov for Ruby 1.8.x).

Using both in conjunction requires two extra lines in your test/test_helper.rb file not covered by any documentation. This will prevent you from getting messages like "Factory not registered: " or "uninitialized constant Test::Unit::TestCase::FactoryGirl (NameError)".

My test_helper.rb file looks like:

Code:  Select all
require 'simplecov'
SimpleCov.start 'rails'
ENV["RAILS_ENV"] = "test"
require File.expand_path('../../config/environment', __FILE__)
require 'rails/test_help'
# The following two lines of code will reinitialize Factorygirl:
require 'factory_girl'
class ActiveSupport::TestCase
Category: Javascript
Date: 2011-01-05 23:35

Fix jQuery .replaceWith() method to perform in IE8

This article applies to jQuery 1.4.4

The jQuery .replaceWith() method replaces a DOM-element and all of its children by another DOM-element. This function is ideal for use in Ajax applications.

The .replaceWith() method however internally uses the jQuery .remove() method which in Internet Explorer can be dramatically slow. There is a tric however to improve this performance radically by emptying the DOM-element first before removing it. 

It enhanced my performance in IE at least 10 times!

Here's the line:

Category: Javascript
Date: 2010-08-27 15:04

Show jQuery tabs promptly

jQuery tabs are just fabulous!

But if you have a lot of content then you might see your tabs being built up when jQuery applies them.

Here's the solution. Just hide the tabs HTML element initially:

<div id="my_tabs" style="display:none;">

Then use the following jQuery Tabs Event to display them when they are ready:

  show: function(event, ui) 

By using jQuery's .not(:visible) filter method show() is executed only once.

Category: Ruby on Rails
Date: 2010-08-20 23:06

HTML5 helpers for Rails 2.3.x

Eager on using HTML5 in your Rails projects without upgrading to Rails 3?

For those I've ported the HTML5 FormHelpers and FormTagHelpers from Rails 3 back to Rails 2.3.x. So you can now use:


<%= f.email_field(:email) %>

<%= email_field_tag(:user, %>

All helpers are Rails 3 compliant so after updating to Rails 3 just remove the plugin.