zakariaf

Rails 7 new features. Before and After

• Add ComparisonValidator
• PostgreSQL generated columns
• PostgreSQL custom enum types
• Add tracking of belongs_to association
• association_previously_changed? method
• Add invert_where method
• Add associated method
• Add missing method
• Active Record Encryption

lorenadl

Rails download an Active Storage attachment in local disk

For master branch of rails/rails (http://edgeguides.rubyonrails.org/active_storage_overview.html#downloading-files):

message.video.open do |file|
  system '/path/to/virus/scanner', file.path
  # ...
end

fbn4sc

git branch | grep -v "master\|develop" | xargs git branch -D

suzukimilanpaak

####################################################################################

PARKING LOT PROBLEM

Rules of the Game

0. You have two full days to implement a solution
1. You can use any (fairly) mainstream object oriented language of your choice, so long as your solution builds and runs on linux. You should be fine if you favour, say, Java, Ruby, Python or Javascript.
2. Please ensure that you follow the syntax and formatting of both the

guisehn

Grab new backup

Command: heroku pg:backups capture -a [app_name]

Download

Command: curl -o latest.dump `heroku pg:backups public-url -a [app_name]`

Restore backup dump into local db

tristanm

Migrating a Rails project from MySQL to PostgreSQL

This brief guide is written from my own experience with migrating a large (~5GB) MySQL database to PostgreSQL for a Rails project.

No warranties, guarantees, support etc. Use at your own risk and, as always, ENSURE YOU MAKE BACKUPS FIRST!

I chose [pgloader][1] because it's extremely fast. YMMV.

1. Replace mysql2 gem with pg in Gemfile.
2. Update config/database.yml for PostgreSQL. I used [Rails' template][2] as a starting point.

pdebelak

$(document).on('page:change', function() {
  var $productContainer = $('#product-container');

  if ($productContainer.length) {
    setInterval(fetchProducts, 500);
  }

  function fetchProduct() {
    // some ajax code
  }

obfusk

import code; code.interact(local=dict(globals(), **locals()))

johnpolacek

[alias]
	co = checkout
	cob = checkout -b
	coo = !git fetch && git checkout
	br = branch
	brd = branch -d
	brD = branch -D
	merged = branch --merged
	st = status
	aa = add -A .

mlanett

HTTP status code symbols for Rails

Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings.

Status Code Symbol
1xx Informational
100 :continue
101 :switching_protocols
102 :processing