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@charliepark
charliepark / contrasting_text_color.rb
Created July 18, 2010 12:03
calculate contrast color in Ruby
def convert_to_brightness_value(background_hex_color)
(background_hex_color.scan(/../).map {|color| color.hex}).sum
end
def contrasting_text_color(background_hex_color)
convert_to_brightness_value(background_hex_color) > 382.5 ? '#000' : '#fff'
end
@foysavas
foysavas / helpers.rb
Created January 31, 2011 18:12
Carrierwave, DataMapper, & Sinatra starring in "Imagine the Possibilities"
def is_ajax_request?
if respond_to? :content_type
if request.xhr?
true
else
false
end
else
false
end
@igrigorik
igrigorik / ruby-1.9-tips.rb
Created February 3, 2011 17:19
Ruby 1.9 features, tips & tricks you may not know about...
def tip(msg); puts; puts msg; puts "-"*100; end
#
# 30 Ruby 1.9 Tips, Tricks & Features:
# http://www.igvita.com/2011/02/03/new-ruby-19-features-tips-tricks/
#
tip "Upgrading to Ruby 1.9 is simple: rvm install 1.9.2 && rvm --default 1.9.2"
tip "Ruby 1.9 supports named captures in regular expressions!"
@kirs
kirs / gist:1180272
Created August 30, 2011 05:51
NginX config for Rails 3.1 & Unicorn
upstream example_backend {
server unix:/var/www/example.com/shared/unicorn.sock;
}
server {
listen 80;
server_name example.com www.example.com;
access_log off;
error_log off;
client_max_body_size 20M;
@cblunt
cblunt / Gemfile
Created October 21, 2011 08:55
Configure Carrierwave for Amazon S3 Storage and Heroku
# ...
gem 'carrierwave'
gem 'fog', '~> 1.0.0' # Need to specify version, as carrierwave references older (0.9.0) which doesn't allow configuration of Rackspace UK Auth URL
@kolodiazhnyi
kolodiazhnyi / Devise.uk.yml
Created December 20, 2011 19:04
Ukrainian translation for Devise plugin
uk:
errors:
messages:
expired: "прострочено, створіть новий"
not_found: "не знайдено"
already_confirmed: "вже було підтверджено, спробуйте увійти"
not_locked: "не було заблоковано"
not_saved:
one: "Виникла помилка, через яку неможливо зберегти зміни:"
other: "Виникли помилки (загалом - %{count}), через які неможливо зберегти зміни:"
@rstacruz
rstacruz / index.md
Last active November 3, 2023 09:56
Rails models cheatsheet

Rails Models

Generating models

$ rails g model User

Associations

belongs_to

has_one

@daz
daz / style.scss
Last active May 13, 2023 11:24 — forked from kevindavis/gist:1868651
Bootstrap styling for jQuery UI autocomplete
.ui-autocomplete {
position: absolute;
top: 100%;
left: 0;
z-index: 1000;
float: left;
display: none;
min-width: 160px;
_width: 160px;
padding: 4px 0;
@MicahElliott
MicahElliott / rbenv-howto.md
Created April 17, 2012 18:11
Setting up and installing rbenv, ruby-build, rubies, rbenv-gemset, and bundler

Setting up and installing rbenv, ruby-build, rubies, rbenv-gemset, and bundler

This guide enables you to install (ruby-build) and use (rbenv) multiple versions of ruby, isolate project gems (gemsets and/or bundler), and automatically use appropriate combinations of rubies and gems.

TL;DR Demo

# Ensure system is in ship-shape.

aptitude install git zsh libssl-dev zlib1g-dev libreadline-dev libyaml-dev

@jhjguxin
jhjguxin / creating-nested-resources-in-ruby-on-rails-3-and-updating-scaffolding-links-and-redirection.markdown
Created July 9, 2012 03:32
Creating nested resources in ruby on rails 3 and updating scaffolding links and redirection