Ruby on Rails - display error pages for exceptions in ruby on rails- learn Ruby - ruby on rails tutorial - rails guides - rails tutorial - ruby rails
Display error pages for exceptions
- We want to display to your users meaningful errors instead of simple "sorry, something went wrong", Rails has a nice utility for the purpose.
- Open the file app/controllers/application_controller.rb and you should find something like this:
class ApplicationController < ActionController::Base
protect_from_forgery with: :exception
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- We can now add a rescue_from to recover from specific errors:
class ApplicationController < ActionController::Base
protect_from_forgery with: :exception
rescue_from ActiveRecord::RecordNotFound, with: :record_not_found
private
def record_not_found
render html: "Record <strong>not found</strong>", status: 404
end
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It's recommended not to rescue from Exception or StandardError otherwise Rails won't be able to display helpful pages in case of errors.