pgeraghty’s gists

pgeraghty / gist:4732594

Created February 7, 2013 17:29

media width mixins courtesy of http://stackoverflow.com/users/1652962/cimmanon

	$output-media-width: true !default; // true = all, otherwise use a list of numeric values (eg. 320px 23em)

	@mixin media-min-width($bp) {
	@if type-of($output-media-width) != list {
	@media (min-width: $bp) {
	@content;
	}
	} @else {
	$output-bp: find-comparable($bp, $output-media-width);
	@if not comparable($output-bp, $bp) {

pgeraghty / gist:4745014

Created February 9, 2013 11:55

	var page = new WebPage(),
	url = 'http://localhost/a-search-form',
	stepIndex = 0;

	/**
	* From PhantomJS documentation:
	* This callback is invoked when there is a JavaScript console. The callback may accept up to three arguments:
	* the string for the message, the line number, and the source identifier.
	*/
	page.onConsoleMessage = function (msg, line, source) {

pgeraghty / capture-element.coffee

Last active December 12, 2015 08:39

Captures matching element of page with PhantomJS

	page = require('webpage').create()
	system = require 'system'

	if system.args.length is 1
	console.log 'Usage: capture-element.coffee <URL> (filename) (#selector)'
	phantom.exit 1
	else
	address = system.args[1]
	filename = system.args[2] \|\| 'capture.png'
	selector = system.args[3]

pgeraghty / gist:4754245

Last active December 12, 2015 09:49

Finding emails and URLs in MySQL columns

	# contains email address
	where("column_name REGEXP '[a-zA-Z0-9][a-zA-Z0-9._-][a-zA-Z0-9]@[a-zA-Z0-9][a-zA-Z0-9._-][a-zA-Z0-9]\.[a-zA-Z]{2,4}'").count

	# contains url
	where("column_name REGEXP ?", "(https?://\|www\\.)[\.A-Za-z0-9\-]+\\.[a-zA-Z]{2,4}").count

pgeraghty / gist:4948780

Created February 13, 2013 22:03

ActiveRecord::Base.sample hack for choosing a random model instance - useful for tests and seeding

	module ActiveRecord
	class Base
	# Use like User.sample or User.pluck(:id).sample
	def self.sample
	order('RAND()').first rescue nil
	end
	end
	end

pgeraghty / gist:5431830

Created April 22, 2013 01:13

ox 2.0.0 failure

	~ $ ruby -rox -ropen-uri -e 'Ox.sax_parse(Ox::Sax.new, open("http://go.alphashare.com/external/external.php?__method=external_xmlfeed&__feed=kyr&__company_serial=376"))'

	* glibc detected * ruby: double free or corruption (!prev): 0x00000000018f0530 ***
	======= Backtrace: =========
	/lib/x86_64-linux-gnu/libc.so.6(+0x7eb96)[0x7f15e8cc4b96]
	/home/paul/.rvm/gems/ruby-2.0.0-p0/gems/ox-2.0.0/ext/ox/ox.so(ox_sax_drive_cleanup+0x21)[0x7f15e73ebaa1]
	/home/paul/.rvm/gems/ruby-2.0.0-p0/gems/ox-2.0.0/ext/ox/ox.so(ox_sax_parse+0x640)[0x7f15e73ee1c0]
	/home/paul/.rvm/gems/ruby-2.0.0-p0/gems/ox-2.0.0/ext/ox/ox.so(+0x12c5d)[0x7f15e73f0c5d]
	/home/paul/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0(+0x1996ff)[0x7f15e919e6ff]
	/home/paul/.rvm/rubies/ruby-2.0.0-p0/lib/libruby.so.2.0(+0x1a6e4d)[0x7f15e91abe4d]

pgeraghty / rails_admin.rb

Last active December 7, 2023 15:22

Add Delayed Job to Rails Admin (make it visible as a model)

	RailsAdmin.config do \|config\|
	config.included_models = RailsAdmin::Config.models_pool << 'Delayed::Job'

	config.model Delayed::Job do
	label 'Task'
	navigation_label 'Background Processing'
	end
	end

pgeraghty / gist:9469912

Created March 10, 2014 17:35

Benchmark require load time and memory usage

	require 'benchmark'

	def require(file)
	puts `pmap #{Process.pid} \| grep 'total'`
	puts Benchmark.measure('') { super }.format("%t require #{file}")
	end

pgeraghty / gist:9600721

Last active August 29, 2015 13:57

Migrate Carrierwave local images to S3

	Image.where.not(photo: nil).each do \|image\|
	image_path = URI.parse(image.photo_url).path
	image.update_attribute("remote_photo_url", "http://localhost:3000#{image_path}")
	end

pgeraghty / deploy.rb

Created December 7, 2014 14:11

Mina - serial deployment to multiple hosts

Paul Geraghty pgeraghty