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Rails 3 Custom Error Pages


Reply LightBe Corp says: November 6, 2013 at 12:42 pm Earlier this year I was successful in implementing custom error pages in my Rails 3.2.13 applications using the exceptions_app and match Easiest option for migrating an existing app to Rails4. We recommend upgrading to the latest Safari, Google Chrome, or Firefox. All gists GitHub Sign up for a GitHub account Sign in Create a gist now Instantly share code, notes, Raw errors_controller.rb class ErrorsController < ApplicationController def error_404 @not_found_path = params[:not_found] end def error_500 end end Raw generate.sh rails generate controller errors error_404 error_500 Raw remove_routes.rb get "errors/error_404" get "errors/error_500" Raw click site

Where's the 0xBEEF? Now you'll want to define routes to display those errors yourself: # config/routes.rb get "/404", :to => "errors#not_found" get "/422", :to => "errors#unacceptable" get "/500", :to => "errors#internal_error" This will route However, out of the box, Capybara and Rails are set up to error out on the exception instead of actually displaying the error page. This is what I did to get a custom 404 error page on Rails 4, without replacing the default 500 and 422 error pages.

Rails Error Pages

HTTPS Learn more about clone URLs Download ZIP Code Revisions 5 Stars 36 Forks 15 Rails 3.1 - Adding custom 404 and 500 error pages Raw application_controller.rb class ApplicationController < ActionController::Base Rails OS X Setup Guide Installing an rbenv-based Rails stack on El Capitan, Yosemite, or Mavericks Build and Deploy a Rails VPS, Part 1 Start by provisioning an Ubuntu 14.04 VPS, Option 2: Monkey patch. Sorry. 🙁 Reply Dominick says: September 20, 2013 at 6:50 pm Oh man, thanks so much for this post!

Theoretically, if your Rails application completely crashed, Nginx could still serve a static error page, likepublic/500.html. Linked 0 Rails 3: How to show stack trace in server logs for 500 Internal Server Error while in production? Use Minitest for Your Next Rails Project Minitest is a fast, easy to read alternative to RSpec for writing Rails tests, but it can be confusing at first. Rails 404 Route Unfortunately, you died What is the meaning of the 90/10 rule of program optimization Why study Higher Sheaf Cohomology?

Following Rails conventions, just create app/views/layouts/errors.html.erb and that template will automatically be applied to all error pages.Sweet. 7 Testit Since the error pages are normal routes, you can test them in RudthMael commented Apr 2, 2012 How do you make sure the exception is logged in the log/RAILS_ENV.log file? The issue was: since Rails 3 became a lot more Rack “fluent”, we had to move some features to the middleware stack and this forced us to move the whole exceptions You don’t need to specify the name of the template to render, because by convention it is the same as the actionname. 3 Configure theroutes match "/404", :to => "errors#not_found", :via

Routing to the ErrorsController and views Now that your exceptions are defined, you need to route them to your Errors controller and custom pages. Rails 404 Page With Layout First, define the exception: app/controllers/application_controller.rb class UnauthorizedException < Exception; end Next, tell Rails what to do when it sees it. Any of the posts in the references at the bottom can help you there. Join them; it only takes a minute: Sign up Rails 3 - Customizing the Error & 404 pages up vote 27 down vote favorite 8 I'm building a Rails 3 app

Rails Exceptions_app

So, define as many exceptions as you need and add them to the rescue_responses in your application.rb file. I tried messing with changing the setting in the middle of running the test suite, and the results were pretty miserable. Rails Error Pages It's very much based on this Gist by Turadg Aleahmad, but with some cleanup and fixes. Rails Render 404 Page Now try accessing the app in a browser: you should still see the custom 500 error page, thanks to Nginx.Nice!

For example: app/controllers/application_controller.rb class ApplicationController protected def unauthorized render status: 401, template: "/errors/unauthorized.html.haml" false end def not_found render status: 404, template: "/errors/not_found.html.haml" false end With this simple code, http://vealcine.com/rails-4/rails-custom-error-pages.php if Rails.env.production? Is it worth it? Can you please suggest a good modern tutorial or tips on how to do the above? Rails 4 Exceptions_app

On one side, if you set it to false, you can structure your Capybara specs to expect certain exceptions, like so: lambda { visit some_protected_path }.should raise_error(ActionController::UnauthorizedException) While it looks clean, An alternative is to make #render_error protected and call it with the appropriate status. Have you been successful in modifying your Rails 3 applications that use custom error pages? navigate to this website Blog Latest Archives Feed March 13th, 2013 by Josh Dynamic Error Pages In Rails It's a little known fact that you can easily substitute the default Rails HTML error pages with

Here are the packages, preferences, and tips I recommend for getting the most out of this excellent editor. Rails Error Page Gem Instead, use simple, static error pages with the necessary minimal CSS copied and pasted into each HTML file. But it gets better: Since these error pages are just like any other Rails views, you can make use of a custom layout to DRY up the markup.

The only way to reliably reference your application stylesheet is to use the stylesheet_link_taghelper.

In development, it - # shows the logs, in production it is nil. .error-msg = @log Cheers, This entry was posted in Ruby on Rails and tagged 404, 500, error handling, Thanks ruby-on-rails ruby-on-rails-3 share|improve this question edited Nov 12 '13 at 3:14 Abram 11.2k1170113 asked Nov 23 '10 at 20:50 AnApprentice 25.4k102384703 add a comment| 4 Answers 4 active oldest votes end def render_500(exception) logger.info "System Error: Tried to access '#{request.fullpath}'.\n#{exception.class} error was raised for path .\n#{exception.message}" # ... Rails 500 Error More importantly, this will also be triggered if Rails is completely offline and the upstream connection from Nginx to Railsfails. 3 Testit After deploying these changes, test it out by stopping

config/application.rb config.exceptions_app = self.routes config/routes.rb match "/401" to: "errors#unauthorized" match "/404" to: "errors#not_found" match "/500" to: "errors#error" app/controllers/errors_controller.rb class ErrorsController < ApplicationController def unauthorized # Will render the app/views/errors/unauthorized.html.haml template end Helpers and especially layouts are a godsend for cranking out error pages that are styled consistently and match the rest of myapp. I'm glad to have played with it, but I don't think I'll be pushing that hard for it in future apps. http://vealcine.com/rails-4/rails-custom-500-error-pages.php Here’s why I think these are great things to add to your Rails backpack of tools, and how to set them up.

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