nrollr

Install MySQL on macOS Sierra

This procedure explains how to install MySQL using Homebrew on macOS Sierra 10.12

Install Homebrew

• Installing Homebrew is effortless, open Terminal and enter :
  $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
• Note: Homebrew will download and install Command Line Tools for Xcode 8.0 as part of the installation process.

Install MySQL

At this time of writing, Homebrew has MySQL version 5.7.15 as default formulae in its main repository :

StephenRoos

Overview

Our app relies entirely on the current_user helper method (found in our ApplicationController) to retrieve the User object associated with the currently logged-in user (if any). You guys are using the devise gem for authentication, but you still have a current_user helper method which is made available to ApplicationController (and all subclasses).

Normally, the current_user method looks something like this:

def current_user
  # do some magic to get the user id from the (encrypted) session cookie…
 user_id = get_user_id_from_session

brendomaciel

$('#percent').mask('P', {
    translation: {
        'P': {
            pattern: /[\d\.,]/,
            recursive: true
        }
    },
    onKeyPress: function(val, e, field, options) {
        var old_value = $(field).data('oldValue') || '';

rubenrangel

import React, { Component, PropTypes } from 'react';

export default class ImageInput extends Component {
  constructor(props) {
    super(props);
    this.state = {
      src: props.src ? props.src : null,
    }
    
    this.handleOnChange = this.handleOnChange.bind(this);

dogrocker

Oh my zsh.

Install with curl

sh -c "$(curl -fsSL https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"

Enabling Plugins (zsh-autosuggestions & zsh-syntax-highlighting)

• Download zsh-autosuggestions by

maxehmookau

class Organisation < ApplicationRecord
  NUMBER_OF_PERMITTED_USERS = 10
  has_many :users, before_add: :validate_user_limit

  private

  def validate_user_limit(user)
    raise Exception.new if users.size >= NUMBER_OF_PERMITTED_USERS
  end
end

cecilemuller

How to setup Let's Encrypt for Nginx on Ubuntu 18.04 (including IPv6, HTTP/2 and A+ SLL rating)

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Virtual hosts

Let's say you want to host domains first.com and second.com.

Create folders for their files:

dagjaneiro

Install nginx

$ brew install nginx

Edit nginx.conf

$ vim /usr/local/etc/nginx/nginx.conf

bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

pablobm

CRUD with Ember (+ Data)

Ember's official documentation describes a number of low-level APIs, but doesn't talk much about how to put them together. As a result, a simple task such as creating a simple CRUD application is not obvious to a newcomer.