In my project I have a model categories, which has a detail view(show). The view contains data that should be updated in realtime with actioncable. The content/data of the view is not important to ...

I have a few belongs_to migrations created & migrated but I see now that in Rails 5, the default behavior is required: true which I do not want. How can I write a simple migration to convert th...

I am migrating from using the asset pipeline to webpacker in Rails 5.2. My AJAX responses are all causing Uncaught ReferenceError: $ is not defined in rails-ujs.js errors in the browser console. I...

After migrating my development database, I'm unable to run rails db:test:prepare. My application uses the db/structure.sql file to update the test database: # config/application.rb config.active...

I'm using Rails 5 + Angular2 to make a web application and I have a model called "Books". My problem, is that I have a file called "books.ts" that has the code: export class Book { id: number; aut...

I am using rails 5, rails_admin, devise and cancancan. Everything works correctly, but when there is access denied, it shows a 'You are not authorized to access this page' error screen. I want to...

I've been at this upgrade for multiple hours now and am finally truly stuck. It all started when I received the typical Bundler::Fetcher::CertificateFailureError. After much tinkering I think I hav...

We just started using the PaperTrail gem and have noticed that 75% of the records in the versions table have nil for the object_changes column. Any idea why this would be happening and how we can s...

I've been trying to customize the devise register method to register with more parameters and also update more(no luck so far), but I always get Unpermitted parameters: error. I tried using this Ad...

Converting an app from Rails 4 to Rails 5. Everything is going well, though it seems this line is causing an issue. In Rails 4, it was: get :show, token: user.token, email: user.email With Rails...

I'm using Aptana Studio 3 on Mac OS X. I'm trying to run my server in debug mode so I can set breakpoints and step through my code. I created the below debug configuration with the "server" argu...

On Rails 5. I have an Order model with a description attribute. I only want to validate it's presence if one of two conditions is met: if the current step is equal to the first step OR if require...

I use Sidekiq with Rails and the concurrency value returned appears to be wrong. Sidekiq.options[:concurrency] returns 10 instead of 3, which is the value in my config/sidekiq.yml file: :concurren...

I'm using the paper_trail-association_tracking gem to save PaperTrail versions for AR associations. I have a model, let's call it User, that has many Groups and has many Skills. Both of these assoc...

I try to test if two arrays of arrays contain same elements, without testing order of elements. (Rails 5.2 / Rspec-rails 3.8.2) exemple : [['a1', 'a2'], ['b1', 'b2']] [['b2', 'b1'], ['a2', 'a1']]...

I'm using Aptana Studio 3 on Mac High Sierra. I have imported my Rails 5 project and would like to debug some rspec tests in the IDE. On the command line, I normally run bundle exec rspec /spec/pa...

I am getting ActiveRecord::ConnectionTimeoutError once or twice in a day. could someone help me in calculating how many connections my application is making to my DB? and suggestion to optimise my ...

I have rvm installed on my PC with the default ruby gemset being 2.4.1 rvm list ruby-2.4.0 [ x86_64 ] =* ruby-2.4.1 [ x86_64 ] ruby-2.6.3 [ x86_64 ] # => - current # =* - current && ...

I have a Rails 5 app and I wanted to destroy and rebuild my live database (site not launched yet). So I followed the steps that should've worked (they used to work in the past): heroku pg:reset H...

Previously I had my middleware under lib/middleware/my_middle_ware.rb However when doing this, config.middleware.use MyMiddleWare I receive a NameError: uninitialized constant Where is rail...

I am trying to deploy an updated version of a rails app to a droplet on DigitalOcean using mina When I run mina deploy I get the error Missing encryption key to decrypt file with. Ask your team fo...

After upgrading a Rails app to Rails 5, running RSpec tests gives me the following error: rails aborted! ActiveRecord::NoEnvironmentInSchemaError: Environment data not found in the schema. To re...

It's a constant headache when dealing with websockets, and it kills my performance in addition to adding bugs. Since ActionCable is the whole reason I upgraded I'd very much like to get rid of it c...

I am running tests on Codebuild using Docker. I am using MySQL 5.7 community server using mysql docker image. In my dockerfile, I am using following apt-get update command to get default-mysql-clie...

I'm using Rails 5 and Ruby 2.4. I want to start my server in debug mode so that I can debug in my IDE (Aptana Studio). I tried the below but get the error ... localhost:ruby-angular-app davea$ rai...