wicky-andrian

Rails Active Storage Cheatsheet

• Rails Active Storage Cheatsheet
  • Install Active Storage
  • Usage
    • Model
    • Controller
    • Views (in ERB)
    • Display Image and its variants or Preview (PDF or Video)
• Install this libraries first

wicky-andrian

If your master.key has been compromised, you might want to regenerate it.

No key regeneration feature at the moment. We have to do it manually.

1. Copy content of original credentials rails credentials:show somewhere temporarily.
2. Remove config/master.key and config/credentials.yml.enc
3. Run EDITOR=vim rails credentials:edit in the terminal: This command will create a new master.key and credentials.yml.enc if they do not exist.
4. Paste the original credentials you copied (step 1) in the new credentials file (and save + quit vim)
5. Add and Commit the file config/credentials.yml.enc

wicky-andrian

namespace :db do  desc "Backup project database. Options: DIR=backups RAILS_ENV=production MAX=7" 
  task :backup => [:environment] do
    datestamp = Time.now.strftime("%Y-%m-%d_%H-%M-%S")    
    base_path = Rails.root
    base_path = File.join(base_path, ENV["DIR"] || "backups")
    backup_base = File.join(base_path, 'db_backups')
    backup_folder = File.join(backup_base, datestamp)
    backup_file = File.join(backup_folder, "#{RAILS_ENV}_dump.sql")    
    FileUtils.mkdir_p(backup_folder)    
    db_config = ActiveRecord::Base.configurations[RAILS_ENV]    

wicky-andrian

Forms, form_for, and link_to

---

Lesson Objectives

1. Understand forms and the ways we write them
2. Understand the difference between form_tag and form_for
3. Understand link_to and how we can use it to dynamically link our application together

wicky-andrian

# Ref: https://ruby-doc.org/stdlib-2.5.3/libdoc/net/ftp/rdoc/Net/FTP.html

require 'net/ftp'

Net::FTP.open('ftp.gnu.org') do |ftp|
  ftp.login
  ftp.chdir('gnu/wget')
  nlst = ftp.nlst('*.tar.gz')
  nlst.map {|file_name| ftp.gettextfile(file_name) }
end

wicky-andrian

Credit:

All the steps below came from watching the Railscast below:

http://railscasts.com/episodes/274-remember-me-reset-password

The steps below assumes that your app already has a user and user authentication set up.

• Add to app/views/sessions/new.html.erb file

<p><%= link_to 'Forgot password?', new_password_reset_path %></p>

wicky-andrian

## Sublime Text 3 Serial key build is 3176

> * Added these lines into  /etc/hosts 

127.0.0.1       www.sublimetext.com
127.0.0.1       license.sublimehq.com

> * Used the license key

----- BEGIN LICENSE -----

wicky-andrian

SSL upgrades on rubygems.org and RubyInstaller versions

UPDATE 2016-12-01: Please refer to the official guide instead of this process.

UPDATE 2014-12-21: RubyGems 1.8.30, 2.0.15 and 2.2.3 have been released. It requires manual installation, please see instructions below.

---

Hello,

wicky-andrian

1. Add gem 'rails_12factor' to your Gemfile. This will add error logging and the ability for your app to serve static assets.
2. bundle
3. Run RAILS_ENV=production rake db:create db:migrate db:seed
4. Run rake secret and copy the output
5. From the command line: export SECRET_KEY_BASE=output-of-rake-secret
6. To precompile your assets, run rake assets:precompile. This will create a folder public/assets that contains all of your assets.
7. Run RAILS_ENV=production rails s and you should see your app.

Remember to clobber your assets (rake assets:clobber) and re-precompile (rake assets:precompile) if you make changes.

wicky-andrian

1xx Informational

Status Code	Status Message	Symbol
100	Continue	:continue
101	Switching Protocols	:switching_protocols
102	Processing	:processing

2xx Success

Status Code	Status Message	Symbol