timm-oh

# app/helpers/application_helper.rb
module ApplicationHelper
  # active_storage_item could be a blob or variant object
  def proxy_url(active_storage_item, options = {})
    options.merge!(host: ENV['ASSETS_HOST']) if ENV['ASSETS_HOST'].present?

    # proxy: 'true' allows you to stil have the original functionality while
    # being able to proxy through a CDN. You've got to ensure that your CDN
    # forwards this param otherwise active storage will always do the default
    # behavior which is a redirect to the service.

bradtraversy

Django Deployment to Ubuntu 18.04

In this guide I will go through all the steps to create a VPS, secure it and deploy a Django application. This is a summarized document from this digital ocean doc

Any commands with "$" at the beginning run on your local machine and any "#" run when logged into the server

Create A Digital Ocean Droplet

Use this link and get $10 free. Just select the $5 plan unless this a production app.

bradtraversy

Django 2.x Cheat Sheet

Creating a virtual environment

We need to create a virtual env for our app to run in: More Here Run this command in whatever folder you want to create your venv folder

python -m venv ./venv

karolmajta

'use strict';

const pointsToFile = uri => /\/[^/]+\.[^/]+$/.test(uri);

exports.handler = (event, context, callback) => {
    
    // Extract the request from the CloudFront event that is sent to Lambda@Edge 
    var request = event.Records[0].cf.request;

    // Extract the URI from the request

benzkji

<script src='https://www.google.com/recaptcha/api.js?hl=de'></script>

check https://developers.google.com/recaptcha/docs/invisible

<div
    id="header_recaptcha"
    class="g-recaptcha"
    data-sitekey="6LctdiQUAAAAAOTUOX92-PkGJXpZgGUp5hrq4l65"
    data-size="invisible"
    data-callback="recaptcha_submit"

Kartones

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)

tbeauvais

#############################################################################
# Migration file to create index so you don't get duplicate users for a group
#############################################################################
class AddMembersUniquenessIndex < ActiveRecord::Migration
  def self.up
  	add_index :group_members, [:group_id,:user_id], :unique => true
  end

  def self.down
 	remove_index :group_members, [:group_id,:user_id]