| # before this file is loaded, a locale should be set: | |
| # | |
| # In a browser environment, you can use: | |
| # ```<script>__locale='en';</script>``` | |
| # | |
| # In a server environment (specifically node.js): | |
| # ```global.__locale = 'en';``` | |
| # normalize in-app locale string to "en" or "de-AT" | |
| parts = @__locale.split('-') |
| wget http://rubyforge.org/frs/download.php/75414/linecache19-0.5.13.gem | |
| wget http://rubyforge.org/frs/download.php/75415/ruby-debug-base19-0.11.26.gem | |
| gem install linecache19-0.5.13.gem | |
| gem install ruby-debug-base19-0.11.26.gem -- --with-ruby-include=$HOME/.rvm/src/ruby-1.9.3-p194 | |
| rm linecache19-0.5.13.gem | |
| rm ruby-debug-base19-0.11.26.gem |
| # Reference: http://blog.jerodsanto.net/2010/12/minimally-awesome-todos/ | |
| # | |
| # Improvements: | |
| # | |
| # *) It now supports tracking multiple projects/todo files. | |
| # *) Use 'cat -b' to get task order instead of hard-coding line number in files. | |
| # | |
| # 3 actions available: | |
| # - Create a new task in project "prj": td prj task | |
| # - Delete third task: tddone prj 3 |
This installs a patched ruby 1.9.3-p327 with various performance improvements and a backported COW-friendly GC, all courtesy of funny-falcon.
You will also need a C Compiler. If you're on Linux, you probably already have one or know how to install one. On OS X, you should install XCode, and brew install autoconf using homebrew.
| require 'active_record' | |
| require 'benchmark/ips' | |
| ActiveRecord::Base.establish_connection( | |
| :adapter => 'sqlite3', | |
| :database => ':memory:') | |
| ActiveRecord::Base.connection.create_table('posts') do |t| | |
| t.string :name | |
| t.timestamps |
Dear Rubyists,
I just lost a contract because of my code in a Rails project.
The specific code in question is related to a "posting a comment" feature. Here are the details:
In this project, "posting a comment" does not simply entail inserting a row into the database. It involves a procedure to yes, insert a row, but also detect its language, check for spam, send emails, and "share" it to Twitter and Facebook. I believe this algorithm should be encapsulated. I do not believe it belongs in a controller or a model. I do not believe Active Record callbacks should be used.
The "senior developer", whom is the stake holder's right hand man, said this:
| Latency Comparison Numbers (~2012) | |
| ---------------------------------- | |
| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns 3 us | |
| Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
| Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
| Pry.config.editor = "mvim" | |
| # Load plugins (only those I whitelist) | |
| Pry.config.should_load_plugins = false | |
| Pry.plugins["doc"].activate! | |
| # Launch Pry with access to the entire Rails stack. | |
| # If you have Pry in your Gemfile, you can pass: ./script/console --irb=pry instead. | |
| # If you don't, you can load it through the lines below :) | |
| rails = File.join Dir.getwd, 'config', 'environment.rb' |
| require 'fiddle' | |
| require 'minitest/autorun' | |
| class RubyVM | |
| class InstructionSequence | |
| address = Fiddle::Handle::DEFAULT['rb_iseq_load'] | |
| func = Fiddle::Function.new(address, [Fiddle::TYPE_VOIDP] * 3, Fiddle::TYPE_VOIDP) | |
| define_singleton_method(:load) do |data, parent = nil, opt = nil| | |
| func.call(Fiddle.dlwrap(data), parent, opt).to_value |
| ;; based on core.logic 0.8-alpha2 or core.logic master branch | |
| (ns sudoku | |
| (:refer-clojure :exclude [==]) | |
| (:use clojure.core.logic)) | |
| (defn get-square [rows x y] | |
| (for [x (range x (+ x 3)) | |
| y (range y (+ y 3))] | |
| (get-in rows [x y]))) |
