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require 'fileutils'

namespace :db do
  desc 'pull the production PostgreSQL database into the development SQLite'
  task :pull do
    Rake::Task['db:download_pg_dump'].invoke
    Rake::Task['db:optimze_pg_dump_for_sqlite'].invoke
    Rake::Task['db:recreate_with_dump'].invoke
  end

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# key-bindings:

left seek -4
right seek 2

up speed_incr 0.01
down speed_incr -0.01

- volume -1
= volume 1

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require "xmlsimple"

def transactions(filename)
  data = XmlSimple.xml_in(filename)
  data["LIST_G_CLIENT"][0]['G_CLIENT'][0]['LIST_G_ACC_CURR'][0]['G_ACC_CURR'][0]['LIST_G_TRANS_CARD'][0]['G_TRANS_CARD'][1]['LIST_G_TRANS_DETAILS'][0]['G_TRANS_DETAILS']
end

fields = %w(TRANS_DATE_XML TRANS_AMOUNT TRANS_CURR ACC_AMOUNT TRANS_DETAILS )

puts fields.join(", ")

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[core]
  ...
[remote "dokku"]
  url = git@remote:appname
  fetch = +refs/heads/*:refs/remotes/dokku/*

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Deploy Rails 4 app with Dokku on DigitalOcean

Install dokku

First create a Ubuntu 13.04 x64 droplet on DigitalOcean Control Panel

Then ssh with root account, run this in termianl:

$ wget -qO- https://raw.github.com/progrium/dokku/master/bootstrap.sh | sudo bash

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class User < ActveRecord::Base
  def full_name
    "#{ last_name } #{ first_name }"
  end
end

describe User do

  # in this case a real AR object needless
  # profit => speed up, more test isolation(test does not fail when database connection is broken)

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namespace :routes do
  desc "Writes doc/routes.html. Requires Graphviz (dot)"
  task :visualizer => :environment do
    File.open(Rails.root.join('doc', 'routes.html'), 'wb') do |f|
      f.write Rails.application.routes.router.visualizer
    end
  end
end

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module A
  def foo
    'A#foo'
  end
end

module B
  def foo
    'B#foo'
  end

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По дефолту для Mongoid он пагинирует Criteria. Если нужно Ruby-Array-массив:

Kaminary.paginate_array(...)

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# Capistrano configuration
# 
# require 'new_relic/recipes'         - Newrelic notification about deployment
# require 'capistrano/ext/multistage' - We use 2 deployment environment: staging and production.
# set :deploy_via, :remote_cache      - fetch only latest changes during deployment
# set :normalize_asset_timestamps     - no need to touch (date modification) every assets
# "deploy:web:disable"                - traditional maintenance page (during DB migrations deployment)
# task :restart                       - Unicorn with preload_app should be reloaded by USR2+QUIT signals, not HUP