Graceful error display on non-existent belongs_to association.

[elvinaspredkelis]

When adding a reference to a model, I personally make an initial migration allowing null values for the model_id, fill the ids and only then force the null: false on the id column.

However, this causes a NoMethodError on the display_name of a column. It is absolutely reasonable, but it makes the resource completely unavailable in that intermediate stage.

ActionView::Template::Error (undefined method `display_name' for nil:NilClass):
    1: <% object = field.value(record) %>
    2: <%= link_to Madmin.resource_for(object).display_name(object), Madmin.resource_for(object).show_path(object) %>

Perhaps it would make sense to somehow handle this use case?

[excid3]

@elvinaspredkelis Try out master and see if that fixes it for ya. We had the correct check in the other field types, but not belongs_to!

If that fixes it, I'll cut a new release.

[elvinaspredkelis]

@excid3

Awesome, looks like the master branch fixed it. Thanks!

[excid3]

Alrighty, released as 1.0.1 🔥