Skip to content

Getting Started with Rails 7 Episode 10: Destroy an Article and Get it Working with Turbo

By

This is the 10th video in the Getting Started with Rails 7 series. In this video Mike follows the Getting Started with Rails guide to implement the destroy action for Articles, but it doesn’t work as intended (even though the controller tests are passing). He then tracks down some recent changes to the Markdown for the Getting Started Guide in Rails main and uses the updated version of the getting started guide to get it working with Turbo without Rails Unobtrusive JavaScript.

Mike also makes use of a Rails system test inheriting from ApplicationSystemTestCase that uses Selenium and Chrome to test the Turbo JavaScript interactions in the browser.

This video covers:

  • 00:00:10 Introduction, review previous episodes and overview of intent for this episode
  • 00:05:34 Write failing tests for destroy action and changes to show
  • 00:08:12 Add destroy action (guide version) to ArticlesController and iterate to get destroy test passing
  • 00:09:58 Add destroy link to show.html.erb to get show test passing
  • 00:10:41 Tests passing. Everything is fine. Or is it? Attempt to test in the browser and discover it is not working as intended.
  • 00:12:26 Chase down solution to problem in rails/main version of getting started guide
  • 00:16:31 Update show.html.erb to use turbo_method and turbo_confirm in link_to helper
  • 00:17:24 Update destroy action to redirect with status code 303 :see_other. Action now working as intended
  • 00:19:46 Use a Rails system test driven by a browser to test Turbo confirm and redirect working as intended
  • 00:23:38 Troubleshoot getting test case working on Ubuntu. Install Chrome using .deb file to get it working
  • 00:25:53 Configuration working. Fix incorrect assertion name in test case and get test passing.
  • 00:26:28 Temporarily remove Turbo compliant version of code to demonstrate system tests failing and then incrementally add back in
  • 00:29:07 View screenshots of system test case failures in tmp/screenshots folder of project directory
  • 00:29:59 Review, commit, and push code

The code for this series is open source and available on GitHub. View the commit for this video here.

Leave a Reply