d11wtq

; Returns a lambda, which for each invocation gives the next Fibbonnaci number
fib := { a := 0
         b := 1
         { n := a
           c := a + b
           a = b
           b = c
           n } }

seq := fib:

d11wtq

##
# Using an index defined in code for model abstraction.
##

class PostsIndex
  include Oedipus::RTIndex

  connection 'sphinx.site.com:3312'

  index_name :posts_rt

d11wtq

/home/chris/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/dm-core-1.2.0/lib/dm-core/model/relationship.rb:372:in `method_missing'
/home/chris/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/dm-core-1.2.0/lib/dm-core/model/property.rb:249:in `method_missing'
/home/chris/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:514:in `load_missing_constant'
/home/chris/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:192:in `block in const_missing'
/home/chris/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:190:in `each'
/home/chris/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:190:in `const_missing'
/home/chris/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/dm-core-1.2.0/lib/dm-core/model.rb:728:in `const_missing'
/home/chris/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/dm-core-1.

d11wtq

module Flippa
  module Job
    # Allow Resque jobs to be instantiated and performed, instead of singleton classes.
    module Instance
      extend ActiveSupport::Concern

      module ClassMethods
        # Default .perform creates an instance and calls perform on that.
        def perform(*args)
          new(*args).perform(*args)

d11wtq

# normally
idx = conn[:posts_rt]
idx.insert( ... )
idx.search( ... )

# distributed
idx = conn[:posts_dist, ->(id){ "posts_rt_#{id % 4}" }]
idx.insert( ... )
idx.search( ... )

d11wtq

" actually run as vim, not vi
set nocompatible

" 256-color terminal
set t_Co=256

" utf-8 by default
set encoding=utf-8

" vundle requires turning off filetypes momentarily

d11wtq

# Instructions for use
#
# 1. Execute "time rails runner nil" a few times in your shell, see how long rails takes to boot
# 2. Add this monkey patch to the top of config/boot.rb
# 3. Repeat step 1.  What's the difference?
#
# This is just an experiment, but it gains me 30% on Rails' start time, which suggests there is something
# in Rails that is breaking the "run only once" behaviour of #require.
#
# Note: You can't override Kernel#require, since Rails by-passes it most of the time.

d11wtq

; Remove a given member from a list
(define rember
  (lambda (a lat)
    (cond
      ((null? lat) '())
      ((eq? (car lat) a) (cdr lat))
      (else (cons (car lat)
                  (rember a (cdr lat)))))))

d11wtq

" actually run as vim, not vi
set nocompatible

" 256-color terminal
set t_Co=256

" utf-8 by default
set encoding=utf-8

" vundle requires turning off filetypes momentarily

d11wtq

;; This was damn hard.
;; 
;; One of the exercises near the end of The Little Schemer requires defining
;; a function that uses a collector to remove odd numbers, recursively from
;; a list, sum the odd numbers and multiple the even numbers.
;;
;; This is it.
;;
;; It requires currying lambdas one inside another to deal with the recursion
;; in the collector function.