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  def render
    pdf = Prawn::Document
    pdf.image StringIO.new(Base64.decode64(splitBase64(BASE64_IMAGE_GOES_HERE)[:data])), at: [10, cursor - 50], width: 200, height: 125
  end

  def splitBase64(uri)
    if uri.match(%r{^data:(.*?);(.*?),(.*)$})
      return {
        type:      $1, # "image/png"
        encoder:   $2, # "base64"

ismarsantos

How to Set up SSH Keys

Create the RSA Key Pair

ssh-keygen -t rsa

Store the Keys and Passphrase

Once you have entered the Gen Key command, you will get a few more questions:

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Dokku v0.5.6 Rails workflow

Straight to Maintenance

0. Set up Droplet

Initialize the droplet with dokku app pre-setup

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Web fonts are pretty much all the rage. Using a CDN for font libraries, like TypeKit or Google Fonts, will be a great solution for many projects. For others, this is not an option. Especially when you are creating a custom icon library for your project.

Rails and the asset pipeline are great tools, but Rails has yet to get caught up in the custom web font craze.

As with all things Rails, there is more then one way to skin this cat. There is the recommended way, and then there are the other ways.

The recommended way

Here I will show how to update your Rails project so that you can use the asset pipeline appropriately and resource your files using the common Rails convention.

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#!/usr/bin/env bash

echo "
----------------------
  NODE & NPM
----------------------
"

# add nodejs 10 ppa (personal package archive) from nodesource
curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -

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@import url('https://fonts.googleapis.com/css?family=Open+Sans:400,400i,600,700');

html, body {
  height: 100%;
  width: 100%;
}

body {
  font-family: 'Open Sans', sans-serif;
  font-weight: 400;

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PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

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mkdir ~/pg_backup/
sudo -u postgres pg_dump test > pg_dump
tar -cvf ~/pg_dump.tar ~/pg_dump
rm -rf ~/pg_dump
#https://github.com/andreafabrizi/Dropbox-Uploader
~/dropbox_uploader.sh upload ~/pg_dump.tar /pg_dump.tar
rm ~/pg_dump.tar

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• Josh Goebel (@yyyc514): suggested lazy evaluation on set

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Stimulus cheatsheet

• Website: https://stimulusjs.org/
• GitHub repo: https://github.com/stimulusjs/stimulus
• Handbook: https://stimulusjs.org/handbook/introduction
• Discourse: https://discourse.stimulusjs.org/

Lifecycle callbacks

• initialize: once, when the controller is first instantiated
• connect: anytime the controller is connected to the DOM