acts_as_tree - parent reference is outdated?

rubyonrails-talk
1

I'm experiencing some unexpected weirdness with acts_as_tree.

class Category < ActiveRecord::Base   acts_as_tree   has_many :variations end

def variations   # some code that returns the parent category variations if we have none end

pc = Category.new pc.variations << "foo" pc.save cc = Category.new cc.parent = pc cc.save

So far so good ...

pc.variations .... ["foo"] cc.variations .... ["foo"]

pc.variations.clear

pc.variations ... <--- that's expected cc.variations ... ["foo"] <-- UNEXPECTED!! cc = Category.find 2 cc.variations ... <-- again, expected

What's going on here? The reference to pc and cc.parent are also not equal (before reloading even) but I guess that's just how AR works. I'm used to Hibernate returning the same reference.

Any suggestions or explanations?

TIA,

Sean

2

Are you sure its not just that the reference to parent is out-dated? Maybe this is just a feature of ActiveRecord? If belongs_to type relationships are just copies of what's in the database at the time that would explain it. It would also explain why re-retrieving the record produces the expected result.

Sean