ruby-on-rails-4.2

I'm upgrading a Rails 4.1.8 app (also using rails-api ~> 0.3.1) to 4.2.0.rc2 and would like to retain the respond_with functionality. I've added responders to the Gemfile, but when I bin/rake spec , I get: /Users/sloveless/.gem/ruby/2.1.0/gems/actionpack-4.2.0.rc2/lib/action_controller/metal/mime_responds.rb:10:in `respond_to': The controller-level `respond_to' feature has been extracted to the `responders` gem. Add it to your Gemfile to continue using this feature: (NoMethodError) gem 'responders', '~> 2.0' Consult the Rails upgrade guide for details. from /Users/sloveless/Development

I've seen a few blog posts claiming that rails 4.2 added support for the new Jsonb data type in Postgres 4.2. However, googling gets me zero results on how to actually use the datatype. Since I'm not depending on key order and I would like my application to be fast, I would very much like to use Jsonb instead of json in one of my models. Was it actually added in 4.2, and, if so, how do you use it? It's part of the not yet released version of Rails 4.2 (currently 4.2.0.rc3). To use the datatype, specify the jsonb type when creating a table: create_table :users do |t| t.jsonb :extra_info end or

Below on line no. 2, I am getting this error: Errno::ENOENT in OrdersController#print def generate_receipt(filename = nil, current_user = nil) filename ||= "public/receipts/#{id}.pdf" Prawn::Document.generate(filename, :page_layout => :portrait, :page_size => 'LETTER', :skip_page_creation => false, :top_margin => 50, :left_margin => 50)do |pdf| pdf_receipt_data(pdf, false, 'store_front', current_user) pdf.number_pages "<page> of <total>", :at => [0, 0] end end On my localhost this code is working but on testing env I am getting this error. I am using rails 4.2. Please help me out. After

I have not found a solution to the problem, however someone did already ask about the same problem a few days ago - ( Rails Server Keeps Exiting (SocketError) ) After I start a rails server the system returns some error I cannot understand. To install Ruby on Rails on my mac I did everything as listed on http://railsapps.github.io/installrubyonrails-mac.html here is my terminal response: $ rails server => Booting WEBrick => Rails 4.2.0 application starting in development on http://localhost:3000 => Run `rails server -h` for more startup options => Ctrl-C to shutdown server [2015-02-28 02:14:46

Referencing to Rails 4.2 add_foreign_key support: # add a foreign key to `articles.author_id` referencing `authors.id` add_foreign_key :articles, :authors How to create a nullable foreign key constraint, to allow the situation, where articles.author_id can be sometimes null? There is nothing in the guide that implies add_foreign_key would make the corresponding foreign field "NOT NULL" or required. add_foreign_key simply adds a foreign key constraint whether the field is required or not (in your case author_id in articles ). Did you get an error when you tried this in your migration? Here's

In my gemfile I have: gem 'mysql2' My database.yml is as follows: default: &default adapter: mysql2 database: <%= ENV['db_name'] %> username: <%= ENV['db_user'] %> password: <%= ENV['db_pass'] %> host: <%= ENV['db_host'] %> pool: 32 socket: <%= ENV['socket'] %> development: <<: *default production: <<: *default I've run both bundle update and bundle install and my Gemfile.lock shows mysql2. However when I run rake db:migrate I get this on both my computer and on the staging server: myproject.com(master)$ rake db:migrate WARNING: Use strings for Figaro configuration. 10000012508 was converted