I decided to upgrade from ActiveAdmin 0.5.1 to 0.6.0 because the configuration syntax for panels, columns, etc. seemed to have been streamlined quite a bit. Looked cool, right?
Well, this turned to take way longer than it should. Here’s what you need to do:
After running ‘bundle update’ to get the latest activeadmin gem 0.6.0, I took a look at the “Upgrading” section of the README at https://github.com/gregbell/active_admin
Sure enough, this
$> rails generate active_admin:assets
turned out to be a good thing. But it wasn’t enough.
Right away I noticed that Devise had been upgraded to 2.2.3 from 2.1.2. I figured I should probably check out their upgrade steps. You can find those here: https://github.com/plataformatec/devise/wiki/How-To:-Upgrade-to-Devise-2.2
My specs were still failing with
uninitialized constant Admin::DashboardController
but the AA Readme recommendation to ensure that app/admin/dashboards.rb looked like the default turned out to be a red-herring.
I noticed that a fresh ‘rails generate active_admin:install’ wanted to drop a new app/admin/dashboard.rb file. This new config file had all the jazzy new configuration syntax, so after copying over my section configs from the dashboards.rb to dashboard.rb, renaming ‘section’ to ‘panel’, and removing the dashboards.rb file, I fired up my specs again. My newly styled dashboard looked great but there was still a problem: seems that my root ‘/’ path was no longer pointing at a valid controller. Say huh?
I could see in ‘rake routes’ that I had two routes for ‘/’ – one from my manual route and a mystery one that looked like the commented out root_to configuration in config/initializers/active_admin.rb. Turns out some other folks had just encountered this: https://github.com/gregbell/active_admin/issues/2049
Following the advice there to move my manual root route up above ActiveAdmin in routes.rb did indeed get me back in shape. Looking forward to AA 0.6.1…