mikermcneil

Policies in Sails.js

Policies are additive. Anything you might do with policies, you could just implement in your custom actions directly. But they can make your life a lot easier.

When should I use policies?

Policies can be used like middleware, meaning you can do almost anything you can imagine with them. That said, our experience using Sails to build all sorts of different apps has taught us that policies are best used for one, very specific purpose: preventing access to actions for certain users (or types of users) where those actions are not accessible in the UI. That is, policies are best used like preconditions-- you can use them to take care of edge cases that are only possible by cheating the UI.

For example, imagine you're building an action called changePassword in your UserController. Its job is to take the new password that was provided, encrypt it, then update the database record for the currently-logged-in user to save the new encryped password. When you implement and test

jqtrde

Bouke

First, install the following libraries:

$ brew install unixodbc
$ brew install freetds --with-unixodbc

FreeTDS should already work now, without configuration:

$ tsql -S [IP or hostname] -U [username] -P [password]
locale is "en_US.UTF-8"

locale charset is "UTF-8"

sebkopf

Installation information for R with GTK+

Windows

Install the newest version of R. Additionally, I highly recommend R-Studio for working with R regularly (but the basic command line will work just fine for most applications). Once R is installed, you can install GTK directly from within R (details below). In short:

• install R for Windows
• optional but recommended: install R-Studio
• install GTK+

1. From the R command line (e.g. in R-Studio), install the RGtk2 package by running: install.packages("RGtk2", depen=T)
   This might fail with the warning that package ‘RGtk2’ is not available (for R version xxx) if your version of R has been released very recently. If so, just run install.packages("RGtk2", depen=T, type="source") instead to install the RGtk2 package directly from its source code (this might take a few

patricksurry

This example adapts mbostock's quadtree brushing demo to find the nearest neighbor (shown red) of a new point (shown yellow). Choose a new point to classify by clicking on the diagram. (An alternative approach for nearest neighbors of the mouse position is D3's Voronoi polygons, but the idea here would extend to rapidly classifying many new points against a base collection of points.)

We use a data-dependent order of recursion through the quadtree

ogrrd

Never touch your local /etc/hosts file in OS X again

To setup your computer to work with *.test domains, e.g. project.test, awesome.test and so on, without having to add to your hosts file each time.

Requirements

• Homebrew
• Mountain Lion -> High Sierra

Install

Diasporism

Redis and Resque

What this guide will cover: the code you will need in order to include Redis and Resque in your Rails app, and the process of creating a background job with Resque.

What this guide will not cover: installing Ruby, Rails, or Redis.

Note: As of this writing I am still using Ruby 1.9.3p374, Rails 3.2.13, Redis 2.6.11, and Resque 1.24.1. I use SQLite in development and Postgres in production.

Background jobs are frustrating if you've never dealt with them before. Over the past few weeks I've had to incorporate Redis and Resque into my projects in various ways and every bit of progress I made was very painful. There are many 'gotchas' when it comes to background workers, and documentation tends to be outdated or scattered at best.

masak

Ok, I geeked out, and this is probably more information than you need. But it completely answers the question. Sorry. ☺

Locally, I'm at this commit:

$ git show
commit d6cd1e2bd19e03a81132a23b2025920577f84e37
Author: jnthn <jnthn@jnthn.net>
Date:   Sun Apr 15 16:35:03 2012 +0200

When I added FIRST/NEXT/LAST, it was idiomatic but not quite so fast. This makes it faster. Another little bit of masak++'s program.

simme

# First install tmux
brew install tmux

# For mouse support (for switching panes and windows)
# Only needed if you are using Terminal.app (iTerm has mouse support)
Install http://www.culater.net/software/SIMBL/SIMBL.php
Then install https://bitheap.org/mouseterm/

# More on mouse support http://floriancrouzat.net/2010/07/run-tmux-with-mouse-support-in-mac-os-x-terminal-app/

denmarkin

# 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}..."