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@maxivak
maxivak / send_data-send_file-remote-images-download
Created January 1, 2013 23:34
Rails. Download remote image as attachment in browser
# in controller
# for local files
send_file '/path/to/file', :type => 'image/jpeg', :disposition => 'attachment'
# for remote files
require 'open-uri'
url = 'http://someserver.com/path/../filename.jpg'
data = open(url).read
send_data data, :disposition => 'attachment', :filename=>"photo.jpg"
@hakisa-jerome
hakisa-jerome / ValidatorListener.php
Created September 23, 2012 08:12
Prevent invalid entities from being updated
<?php
namespace Acme\DemoBundle\EventListener;
use Symfony\Component\Validator\Validator;
use Doctrine\ORM\Event\LifecycleEventArgs;
/**
* Prevent invalid entities from being updated
*
@andkerosine
andkerosine / raskell.rb
Created August 15, 2012 05:56
Haskell-like list comprehensions in Ruby
$stack, $draws = [], {}
def method_missing *args
return if args[0][/^to_/]
$stack << args.map { |a| a or $stack.pop }
$draws[$stack.pop(2)[0][0]] = args[1] if args[0] == :<
end
class Array
def +@
@keeguon
keeguon / countries.json
Created April 5, 2012 11:11
A list of countries in JSON
[
{name: 'Afghanistan', code: 'AF'},
{name: 'Åland Islands', code: 'AX'},
{name: 'Albania', code: 'AL'},
{name: 'Algeria', code: 'DZ'},
{name: 'American Samoa', code: 'AS'},
{name: 'AndorrA', code: 'AD'},
{name: 'Angola', code: 'AO'},
{name: 'Anguilla', code: 'AI'},
{name: 'Antarctica', code: 'AQ'},
@nkpart
nkpart / merge_sort.rb
Created October 14, 2011 04:04 — forked from kimhunter/merge_sort.rb
Merge sort ruby
#!/usr/bin/env ruby
# 2011-10-10 20:57:53 +1000
def merge_sort(a)
return a if a.size <= 1
l, r = split_array(a)
result = combine(merge_sort(l), merge_sort(r))
end