Mike Owens @ Filespanker / Blog

readline in Ruby 1.9

Mon, 26 Jul 2010 12:28:07 -0400

If, for example, you’re running Ubuntu, and decided to stop using its half-screwed ruby1.9, install it from source. But you’ve just lost readline support in irb! All the web says you need to ./configure ruby with —with-readline-dir, but it no longer exists.

cd ~/src/ruby1.9-whatever/ext/readline ruby ./extconf.rb --enable-readline-v6 make && sudo make install

Done. You’ll need libreadline-dev installed.

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Sun, 09 Aug 2009 17:23:52 -0400

Rails State Machine

Fri, 07 Aug 2009 17:15:00 -0400

I think it’s crazy when I implement something that “Surely, I’m the only one that’ll ever use this”, and then another implementation ends up in Rails proper. Last year, I wrote acts_as_fsm; a state machine implementation for ActiveRecord models:

SaleMachine = Fsm::state_machine do
  state :new    => :queued
  state :queued => :new

  state :queued => :on_site do |sale, old, new|
    sale.started_at = Time.now
  end

  state :on_site => :processing_orders do |sale, old, new|

    sale.ended_at = Time.now
    sale.orders.each do |o|
      o.status_items <<
        OrderStatusItem.new(:status  => "CLOSE_WAIT",
                            :message => "Sale ended.  Waiting for a few stragglers" );
      o.save!
    end
  end

  state :processing_orders => :shipped
end

And then, to use the machine:

class Sale < ActiveRecord::Base
  acts_as_fsm :machine => SaleMachine
end

There is nothing I love more than throwing away code I wrote and migrating to something in the framework. Less stuff for me to maintain. Check out ActiveRecord::StateMachine.

Code on Paper

Wed, 29 Jul 2009 22:31:50 -0400

Trying to reason about code with pen-and-paper is a distressing experience. Like trying to explain guitar scales without a guitar nearby.

Git+Trac = Awesome

Thu, 23 Jul 2009 20:41:10 -0400

I’ll be blunt and say Trac is only open source issue tracker both designed for humans, and with enough features to make it realistically usable, and it seems to be pretty popular. I’ve used it for years.

Obviously, git seems to be the defacto DVCS these days.

Why on earth do must I install a self-described “proof of concept” plugin to make the two work together?

As an aside, the plugin does seem to work wonderfully.

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Sun, 12 Jul 2009 14:55:22 -0400

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Sun, 12 Jul 2009 14:54:57 -0400

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Sat, 11 Jul 2009 23:12:38 -0400

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Sat, 11 Jul 2009 15:41:25 -0400

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Sat, 11 Jul 2009 15:40:48 -0400

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Wed, 08 Jul 2009 15:03:29 -0400

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Mon, 06 Jul 2009 12:16:16 -0400

B and K 4th’in.

Mon, 06 Jul 2009 09:50:05 -0400

B and K 4th’in.

T and K 4th’in.

Mon, 06 Jul 2009 09:49:25 -0400

T and K 4th’in.

K economy shopping.

Mon, 06 Jul 2009 09:48:38 -0400

K economy shopping.

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Mon, 29 Jun 2009 07:03:11 -0400

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Fri, 19 Jun 2009 21:05:23 -0400

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Tue, 16 Jun 2009 08:01:17 -0400

Subcutanious fluids.

Tue, 16 Jun 2009 08:00:47 -0400

Subcutanious fluids.

iReddit is the worst iPhone app I regularly use.

Tue, 16 Jun 2009 07:59:58 -0400

iReddit is the worst iPhone app I regularly use.