davydovanton

def in_two_columns(objects)
  items_in_column = (olbjects.size / 2.0).ceil
  objects.in_groups_of(items_in_column, false) do |obj|
    yield obj if block_given?
  end
end

# method inputs array and block
#  
# example: 

davydovanton

def link_to_custom(name, options = {link_name: name})
  page = cms_site.pages.find_by_label(name)
  page = page.nil? ? "#" : page.full_path
  link_options = options.select {|key, value| key != :link_name && key != :link_page }

  link_to( page , link_options ) do
     block_given? ? yield : options[:link_name]
  end
end

davydovanton

ActiveRecord::Base.connection.tables.each do |table_name|
  puts "\n" + table_name
  ActiveRecord::Base.connection.columns(table_name).each {|c| puts "- " + c.name + ": " + c.type.to_s + " " + c.limit.to_s}
end


User.reflect_on_all_associations.each { |a| puts "#{a.macro} => #{a.name}" }
# has_many => posts
# has_one => avatar
# has_one => posts_filter

davydovanton

http://www.facebook.com/sharer.php?u={url}&t={title}
http://www.liveinternet.ru/journal_post.php?action=n_add&cnurl={url}&cntitle={title}
http://www.livejournal.com/update.bml?event={url}&subject={title}
http://connect.mail.ru/share?url={url}&title={title}
http://www.odnoklassniki.ru/dk?st.cmd=addShare&st._surl={url}&title={title}
http://twitter.com/share?text={title}&url={url}
http://vkontakte.ru/share.php?url={url}
http://www.google.com/buzz/post?message={title}&url={url}
http://del.icio.us/post?url={url}&title={title}
http://digg.com/submit?url={url}&title={title}&media=news&topic=people&thumbnails=0

davydovanton

# Check type class in STI in rails
Post.uniq.pluck(:type).each do |class_type|
  method_name = class_type.gsub(/([a-z\d])([A-Z])/, '\1_\2').downcase + '?'
  define_method method_name do
    type == class_type
  end
end

# Use mb_chars.uppcase for many varibles
first_name, middle_name, last_name = [:first_name, :middle_name, :last_name].map{ |i| user.send(i).mb_chars.capitalize }

davydovanton

for i in */.; do
  cd $i
  repo=$(git remote show origin | grep 'Fetch URL:')
  re="Fetch URL: https://github.com/(.+)"
  if [[ $repo =~ $re ]]; then
    var="$var\nPlugin '${BASH_REMATCH[1]}'"
  fi
  cd -
done

davydovanton

require 'benchmark'

first  = 'first'
second = 'second'
n = 1_000_000
Benchmark.bm do |x|
  x.report('string interpolation:    '){ n.times { "#{first}_#{second}" } }
  x.report('string interpolation #2: '){ n.times { first + '_' + second } }
  x.report('string interpolation #3: '){ n.times { "%s_%s" % [first, second] } }
  x.report('join array:              '){ n.times { [first, second].join('_') } }

davydovanton

module Jekyll
  module Tags
    # Simple jekyll plugin for create a html figure construction.
    # About figure:
    #   https://developer.mozilla.org/en-US/docs/Web/HTML/Element/figure
    #
    # The figure tag should take this form:
    #
    #   {% image_with_caption you_image_url %}
    #     This is caption block. This should be parsed as *markdown* [man](http://example.com/). Or not :)

davydovanton

" Tools for searching and replacing text in Vim
 
" Search for the current visual selection
fun! StarSearch(direction)
  let old_reg = getreg('"')
  let old_regtype = getregtype('"')
  exe 'normal! gvy\<esc>gV'
  let @/ = EscapeMagic(@")
  call histadd("/", @/)
  call setreg('"', old_reg, old_regtype)

davydovanton

#!/usr/bin/env ruby
 
require 'rubygems'
require 'sinatra'
 
get '/' do
  erb :index
end
 
get '/follower_viz' do