Rails 3.1 Dynamic Error Pages
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so that error pages work for all types of requests, not justGET. Normally, 404 and 500 error pages are static HTML files that rails exceptions_app live in the public directory of a Rails application. These are rails error page boring, minimally-styled pages that don’t get the same treatment as the rest of the app. This rails render 404 page tutorial shows you how to move error pages into your Rails app as dynamic views that benefit from application styles, layouts, and viewhelpers. tl;dr – jump to
Rails 404 Page With Layout
the Rails code and the Capistrano bonustip Why are dynamic error pages paticularly handy in Rails4? Starting with Rails 4, the production asset pipeline no longer generates filenames without cache-busters. This means that referencing /assets/application.css in your static public/404.html page won’t work in a Rails 4 app! The file will not exist in the production rails 404 route environment. The only way to reliably reference your application stylesheet is to use the stylesheet_link_taghelper. But error pages are static HTML pages; they can’t use helpers, right? If you want nice-looking error pages in Rails 4, here are youroptions: Option 1: No external styles. Don’t reference your application stylesheet at all. Instead, use simple, static error pages with the necessary minimal CSS copied and pasted into each HTML file. This is the solution that ships withRails. Works for simple apps that don’t need custom-branded errorpages. Option 2: Monkey patch. Use static error pages and point to /assets/application.css for styling. Then, monkey-patch Rails to restore the pre-Rails 4 behavior so that the asset pipeline generates non-cache-busted filenames in production. Make sure not to send far-future expires headers for thesefiles! Easiest option for migrating an existing app to Rails4. Option 3: Dynamic. Use dynamic view templates (ERB) for error pages, and take advantage of the stylesheet_link_tag helper to get the right cache-busted filename. Error pa
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Rails 500 Error
million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Rails 4: How do I create a custom 404 page that uses the asset pipeline? up vote 14 down https://mattbrictson.com/dynamic-rails-error-pages vote favorite 5 There are many solutions for creating customized error handling pages, but almost none for Rails 4: Basic Rails 404 Error Page Dynamic error pages in Rails The standard answer of encouraging people to modify 404.html in /public doesn't work for me because I want to use the CSS theme that resides in the asset pipeline. Is there a way that html files can access those styles defined in the http://stackoverflow.com/questions/24235805/rails-4-how-do-i-create-a-custom-404-page-that-uses-the-asset-pipeline asset pipeline? If not, is there a way to create a custom error handler that has access to the pipeline? ruby-on-rails ruby-on-rails-4 error-handling asset-pipeline share|improve this question asked Jun 16 '14 at 2:01 Avery 2,31372642 I think on your second reference have what do you want. but almost none for Rails 4 , Are you sure the second reference not work on rails 4? What you have done already? –rails_id Jun 16 '14 at 2:35 add a comment| 3 Answers 3 active oldest votes up vote 23 down vote For Rails 4.1 I like this answer, add an asset type better; however I have not tried it. On Rails 4.0.8, these three references helped me: Dynamic error pages is the second reference in the question. This worked just fine for me. Custom error pages may have cribbed from the first reference, or the other way around, but goes the extra mile by adding some information about testing with Capybara. I did not do the Capybara testing because I didn't want to change the test configuration; however, RSpec-Rails Request Specs clued me in to test these requests independently and see that they complete and return the correct content. What follows is a nutshell description of what is taught by the three references: Add the followin
a GitHub account Sign in Create a gist now Instantly share https://gist.github.com/1563416 code, notes, and snippets. Star 36 Fork 15 gonzedge/application_controller.rb Created Jan 5, 2012 Embed What would you like to do? Embed Embed this gist in your website. Embed Share Copy sharable URL for this gist. Share Clone via HTTPS Clone with Git or checkout with SVN error page using the repository's web address. 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 # ... unless Rails.application.config.consider_all_requests_local rescue_from Exception, with: lambda { |exception| rails error page render_error 500, exception } rescue_from ActionController::RoutingError, ActionController::UnknownController, ::AbstractController::ActionNotFound, ActiveRecord::RecordNotFound, with: lambda { |exception| render_error 404, exception } end private def render_error(status, exception) respond_to do |format| format.html { render template: "errors/error_#{status}", layout: 'layouts/application', status: status } format.all { render nothing: true, status: status } end end # ... end Raw error_404.html.haml %h2 404 %div %h3 We're sorry %p The content that you requested could not be found. %p You tried to access '#{@not_found_path}', which is not a valid page. %p Want to %a{href: root_path} go back to our home page and try again? 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 routes.rb unless Rails.application.config.consider_all_requests_local match '*not_found', to: 'errors#error_404' end karellm commented Jan 16, 2012