tomharris

import glob
import json
import os

for f in glob.glob('*/*.json'):
    outlist = []
    doc  = json.load(open(f))
    for app in doc:
        out_stub = {}
        out_stub['title'] = app['title']

tomharris

Luhn Checksum

Implement a Ruby program that outputs the validity of a number by applying the Luhn Checksum.

http://en.wikipedia.org/wiki/Luhn_algorithm

Please treat this as you would any other task you'd encounter during your daily work. This will show us how currently code, and not how you coded 6, 12 or 18 months ago. Your code should also be suitably tested. Also, please do not feel that you need to spend a great deal of time working on a solution.

There are many solutions and code snippets online to do a Luhn Checksum. Please resist using those.

tomharris

Keybase proof

I hereby claim:

• I am tomharris on github.
• I am tomharris (https://keybase.io/tomharris) on keybase.
• I have a public key whose fingerprint is 4EE9 2C56 96E3 3A36 82F0 F7C4 3DE7 4993 F0A5 47A9

To claim this, I am signing this object:

tomharris

class Thing < ActiveRecord::Base
  def self.sort_by_column(column, direction)
    if column_names.include?(column) and %w(asc desc).include?(direction)
      order("#{column} #{direction}")
    else
      self
    end
  end
end

tomharris

module DataLoad
  class Thing1
    include DatabaseConnectionHelper
 
    def reload_all
      with_master_connection do |connection|
        sql = <<-SQL
        create temporary table tmp_thing1 (
          -- ...
        )

tomharris

module DataLoad
  class Thing1

    def reload_all
      connection = ActiveRecord::Base.connection
    
      sql = <<-SQL
      create temporary table tmp_thing1 (
        -- ...
      )

tomharris

def upload

  # ...

  AWS::S3::Base.establish_connection!(
    :access_key_id => aws_access_key_id,
    :secret_access_key => aws_secret_access_key
  )
  
  File.open(file_path) do |file|

tomharris

Date::DATE_FORMATS[:custom_format] = '%m/%d/%Y'

# ...

user.created_at.to_s(:custom_format)

tomharris

class SomeModel
  after_save :queue_a_task, unless: lambda { !!@callbacks_disabled }

  def do_something_without_queuing_a_task
    disable_callbacks!
    do_something_that_triggers_callbacks
    enable_callbacks!
  end

  private

tomharris

class WordDictionary

  def initialize(dictionary_filename = '/usr/share/dict/words')
    @words = File.readlines(dictionary_filename)
    @words = @words.collect { |word| word.strip } # File.readlines preserves the newlines at the end of the line
  end

  def words_with_five_vowels_in_ascending_order
    @words.select { |word| word.count('aeiou') == 5 && word =~ /.*?[aA].*?[eE].*?[iI].*?[oO].*?[uU].*?/ }
  end