Dimitry Nazarov dimanyc

TL;DR

Install Postgres 9.6, and then:

sudo pg_dropcluster 9.6 main --stop
sudo pg_upgradecluster 9.5 main
sudo pg_dropcluster 9.5 main

Abstract

You could have postgre installed on localhost with password (or without user or password seted after instalation) but if we are developing we really don't need password, so configuring postgre server without password for all your rails project is usefull.

Install Postgre packages

postgresql
postgresql-client
libpq-dev

⇐ back to the gist-blog at jrw.fi

Advanced SCSS

Or, 16 cool things you may not have known your stylesheets could do. I'd rather have kept it to a nice round number like 10, but they just kept coming. Sorry.

I've been using SCSS/SASS for most of my styling work since 2009, and I'm a huge fan of Compass (by the great @chriseppstein). It really helped many of us through the darkest cross-browser crap. Even though browsers are increasingly playing nice with CSS, another problem has become very topical: managing the complexity in stylesheets as our in-browser apps get larger and larger. SCSS is an indispensable tool for dealing with this.

This isn't an introduction to the language by a long shot; many things probably won't make sense unless you have some SCSS under your belt already. That said, if you're not yet comfy with the basics, check out the aweso

	class GameChannel < ApplicationCable::Channel
	def subscribed
	game = Game.find(params[:id])
	stream_for game
	end
	end

	## When the game state changes
	GameChannel.broadcast_to(game, GameSerializer.render(game))

	RSpec.configure do \|config\|

	example_sql_counts = Hash.new(0)

	config.around(:example) do \|procsy\|
	sql_count = 0
	callback = ->(*args) { sql_count +=1 }
	ActiveSupport::Notifications.subscribed(callback, "sql.active_record") do
	procsy.call
	end

	var getTimeLeft = function(){
	var now = moment();
	var deadline = now.clone().hour(12).minute(0),second(0);
	if(now.isAfter(deadline) {
	// disable RSVP button here
	return ‘Closed’;
	}else {
	// enable RSVP button here
	// returns “in x hours”, “in x minutes”, “in a few seconds”
	return deadline.from(now);

	n = 1_000
	id = User.first.id

	profile = User.only(:profile).find(id).profile

	Benchmark.bm(50) do \|x\|
	x.report('User.find(id).profile') do
	n.times{ User.find(id).profile }
	end

	# http://technet.microsoft.com/en-us/library/ee692685.aspx
	# F7 = history
	# Alt+F7 = history -c
	# F8 = Ctrl+R

	Set-Location C:

	# Easier navigation
	Set-Alias o start
	function oo {start .}

	class ExampleCrawler < PoltergeistCrawler
	def crawl
	visit "https://news.ycombinator.com/"
	click_on "More"
	page.evaluate_script("window.location = '/'")
	end
	end
	ExampleCrawler.new.crawl

	# This is a skeleton for testing models including examples of validations, callbacks,
	# scopes, instance & class methods, associations, and more.
	# Pick and choose what you want, as all models don't NEED to be tested at this depth.
	#
	# I'm always eager to hear new tips & suggestions as I'm still new to testing,
	# so if you have any, please share!
	#
	# @kyletcarlson
	#
	# This skeleton also assumes you're using the following gems: