Custom Error Handling in Rails
1. Create an ErrorsController in app/controllers
class ErrorsController < ApplicationController
def not_found
respond_to do |format|
format.html { render template: “errors/not_found”,
layout: “layouts/application”,
status: 404 }
end
end
def not_found
respond_to do |format|
format.html { render template: “errors/not_found”,
layout: “layouts/application”,
status: 404 }
end
end
def server_error
respond_to do |format|
format.html { render template: “errors/server_error”,
layout: “layouts/application”,
status: 500 }
end
end
end
2. Add these to your routes.rb file
match “/404”, :to => “errors#not_found”, :via => :all
match “/500”, :to => “errors#internal_server_error”, :via => :all
match “/500”, :to => “errors#internal_server_error”, :via => :all
3. Add this to your application.rb file
config.exceptions_app = self.routes
4. Delete public/404.html, public/422.html, and public/500.html
5. Remember while developing you should change this to false in config/environments/development.rb
config.consider_all_requests_local = false
If you fail to perform this step, Rails will show you full stacktraces instead of your error page.
Sample app can be found here
More Stories
Sitemaps on an External S3 Bucket using an Asset Subdomain for 2022
it is still possible to host your sitemap on external S3 buckets. You must set up a subdomain of your domain pointed as an Alternative Domain Name for your CloudFront distribution, and in order to do this you must go through domain verification with AWS.
Why You Need a Special DNS Provider on Heroku
Heroku is a robust leader in 12-factor deployment strategies. It is a large and feature-rich platform. You can deploy your...
The How and Why of End-to-End Testing
Tested codebases are the most signficiant development from Rails and Agile over the last 15 years. End-to-end testing, in particular, is the defining reason why Agile and Rails have been so successful. Not writing tests should be seen as akin to malpractice in software development. Hiring someone to write untested code should be outlawed.
Universal Track Manager 0.7.1 Released
Rubygems says my Rails engine (a gem) Universal Track Manager has crossed the 5000 downloads milestone. Interested in tracking page...
Getting Stuck on the Version of Rails In Your Bundler
Confusingly, bundler can have more than one version of Rails installed at once. In this short post, I will review how to check which version of Rails bundler has installed, and how to know which version of Rails you are using to make a new Rails app.