Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.
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-- show running queries (pre 9.2) | |
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query | |
FROM pg_stat_activity | |
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' | |
ORDER BY query_start desc; | |
-- show running queries (9.2) | |
SELECT pid, age(clock_timestamp(), query_start), usename, query | |
FROM pg_stat_activity | |
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' |
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# OSX for Hackers (Mavericks/Yosemite) | |
# | |
# Source: https://gist.github.com/brandonb927/3195465 | |
#!/bin/sh | |
# Some things taken from here | |
# https://github.com/mathiasbynens/dotfiles/blob/master/.osx | |
# Ask for the administrator password upfront |
Server Price Breakdown: DigitalOcean, Amazon AWS LightSail, Vultr, Linode, OVH, Hetzner, Scaleway/Online.net:
Permalink: git.io/vps
Provider | Type | RAM | Cores | Storage | Transfer | Network | Price |
---|
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# Hello, and welcome to makefile basics. | |
# | |
# You will learn why `make` is so great, and why, despite its "weird" syntax, | |
# it is actually a highly expressive, efficient, and powerful way to build | |
# programs. | |
# | |
# Once you're done here, go to | |
# http://www.gnu.org/software/make/manual/make.html | |
# to learn SOOOO much more. |
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# problem: when presenting, I want to obscure | |
# my prompt to act like it's at root of file system | |
# and be very basic with no git info, etc. | |
# solution: this theme lets you set a ENV to the path | |
# of your presentation, which will help remove unneeded prompt | |
# features while in that path | |
# oh-my-zsh theme for presenting demos | |
# based off the default rubbyrussell theme |
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# see http://stackoverflow.com/questions/5880962/how-to-destroy-jobs-enqueued-by-resque-workers - old version | |
# see https://github.com/defunkt/resque/issues/49 | |
# see http://redis.io/commands - new commands | |
namespace :resque do | |
desc "Clear pending tasks" | |
task :clear => :environment do | |
queues = Resque.queues | |
queues.each do |queue_name| | |
puts "Clearing #{queue_name}..." |
Please behave in a polite, considerate and inclusive manner in the channel at all times. People volunteer their time in the channel to help people like you with your Rails problems and some respect (in both directions) will go an extremely long way.
These rules are in place so that you can get the quickest and best support from #rubyonrails.
Rule #0: Show rather than tell. Explaining your problem with code, stacktraces or errors is always preferred to explaining it with just text. Show us what's happening, rather than telling us.
- Do your research before hand. Your question may be answerable with a quick Google search or by simply experimenting. If you're using a method in Rails, look it up in the API Docs or in the Official Guides.
- If you've tried Googling, explain what terms you've tried to use so people can better help you.
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# A commented nginx configuration file for Ruby on Rails | |
# | |
# Author: Tommaso Pavese | |
# tommaso@pavese.me | |
# http://tommaso.pavese.me | |
# | |
# License: http://www.wtfpl.net/ | |
# | |
# | |
# Tested with: |
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#!/bin/bash | |
# See https://github.com/codeclimate/test-reporter/issues/226 | |
# And https://github.com/codeclimate/test-reporter/pull/305 | |
export CI_NAME="heroku" | |
export GIT_COMMITTED_AT="$(date +%s)" | |
# Run the ruby test suite | |
bundle exec rake |
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