I have a nested model, Experiment, with accepts_nested_attributes_for :sources, and I was creating it and its sources in a single form using forms_for and fields_for. (Also, some JS to add/remove sources.)
Matrix has_many :experiments, also.
It worked great.
Then I tried to make it a nested resource (inside of Matrix, e.g., matrices/1/experiments/new). It took a while, but I finally got the form_for working again like so:
form_for([@matrix, @experiment]) do |f|
Fine, okay.
Then, I created new classes which inherited from Experiment -- Predictor and Distribution.
I can create new predictors with sources. Works fine. Unfortunately, editing fails, even though the form code is exactly the same (a partial). I can edit or create new distributions, but any sources I include are absent at the end of the save. They show up in the params hash, but don't appear to be saved.
Is this a problem with my use of fields_for / nested-resources, or is it a problem with inheritance?
Anyone seen anything like this before?
