RSpec test failing when testing for parameters using "should_receive" and "with"

So, another weird and frustrating thing happened to me while i was running my app's tests using rspec.
I got 1 failing spec showing the following error:


Spec::Mocks::MockExpectationError in 'FeedsController#get_recent_feeds gets the recent feeds for live deals'

#[Feed:0x3fa7ffc8de1c @name="Feed_1001"] received :all with unexpected arguments
  expected: ({:include=>:feedable,  :order=>"updated_at desc, feedable_type desc"})
       got: ({:include=>:feedable, :order=>"updated_at desc, feedable_type desc"})

The not so famous before_remove/before_add & after_remove/after_add callbacks.

Well, this is another rails feature and a quite nice one which is not documented properly.

While using has_many :through associations, we can use before_remove, before_add, after_remove, after_add callbacks.

Rails 2.3 after_create callback doesn't rollback even if returned false

So, this is another mind-boggling thing i came across yesterday. I am working on rails 2.3.11

So i had some after_create callbacks on my app's Order model.

The problem i faced was even when the callbacks would fail, the order was still created and the changes would't ROLLBACK!!

Unable to install gems when using gem version 1.8.24 on windows

So, i just upgraded my ruby to 1.9.3, and installed the latest gem version 1.8.4.

After installing DevKit and everything i tried to install rails on my system. I wrote

gem install rails

and after a second got this error

ERROR:  While executing gem ... (Gem::RemoteFetcher::FetchError)
    SocketError: getaddrinfo: No such host is known.  (http://rubygems.org/latest_specs.4.8.gz)

ERROR:  Could not find a valid gem 'rails' (>= 0) in any repository
ERROR:  Possible alternatives: rails

Get value of an attribute before being type-casted by rails

There are times when we might need the value of an attribute before rails type-casting it.

Suppose obj is the object and attrib is the attribute whose value we need before ActiveRecord type-casted it, there's a method we can use to get the value of that attribute it was before being type-casted, which works as follows:

Get non-https urls for images while using when storing images on Amazon S3, using Paperclip and Fog.

What you can do is, the hash where you specify the options for paperclip, how it connects to the S3 server, ie something like this