Allow removing model from navigation without removing its routes

[robinboening]

I have models like this: Order has many LineItem

It doesn't make much sense to look at a list of millions of line items. It makes sense to go through the order and check its list of line items there. I decided to remove line items it from the navigation but I still want line items to appear as a nested resource in Order#show.

The navigation simply renders all resources defined in the routes. So removing line_items from the routes will remove it from the navigation, but it will break the app when I open Order#show because it also uses the line items paths.

Right now there's no possibility to remove a resource from the navigation while keeping it as a nested resources. (Overriding _navigation partial and hardcode the entries is obviously not the right way)

While writing this issue I was playing around with an implementation to add configuration to Dashboards, like this:

# dashboards/line_item_dashboard.rb

class LineItemDashboard < Administrate::BaseDashboard

  configure do |config|
    config.navigation = false
  end

  ...
end

Then I introduced a Administrate::Navigation class collecting all resources configured to be displayed in the navigation. In the _navigation.html.erb partial I iterate through Navigation#resources

It works like a charm. Is it worth sending a PR?

[stratigos]

Thanks for working to improve administrate and how relational data is exposed and navigated through! 🙂

I had similar thoughts recently. Ill take a look at the PR I see linked, and see if I can contribute.

[nickcharlton]

Closing this as we merged #1524 instead.