Possible unexpected has_and_belongs_to_many behaviour. #137
Description
When calling deep_clone with include and referencing a has_and_belongs_to_many association - it doesn't actually make new instances of the object(s) like it does for every other association (has_many, etc).
Using the test suite methods:
def test_single_include_association
deep_clone = @jack.deep_clone(:include => :mateys)
assert deep_clone.new_record?
assert deep_clone.save
assert_equal 1, deep_clone.mateys.size
puts "\n\nDEBUG DEBUG single include association"
puts "@jack.matey_ids => #{@jack.matey_ids}"
puts "deep_clone.matey_ids => #{deep_clone.matey_ids}"
end
...
def test_should_deep_clone_many_to_many_associations
@human = Animal::Human.create :name => 'Michael'
@human2 = Animal::Human.create :name => 'Jack'
@chicken1 = Animal::Chicken.create :name => 'Chick1'
@chicken2 = Animal::Chicken.create :name => 'Chick2'
@human.chickens << [@chicken1, @chicken2]
@human2.chickens << [@chicken1, @chicken2]
deep_clone_human = @human.deep_clone(:include => :ownerships)
assert deep_clone_human.new_record?
assert deep_clone_human.save
assert_equal 2, deep_clone_human.chickens.count
puts "\n\nDEBUG DEBUG many_to_many"
puts "deep_clone_human.chicken_ids => #{deep_clone_human.chicken_ids}"
puts "@human.chicken_ids => #{@human.chicken_ids}"
end
/*
> bundle exec rake test
...
DEBUG DEBUG single include association
@jack.matey_ids => [22]
deep_clone.matey_ids => [23] --> NEW ID, NEW INSTANCE
....
DEBUG DEBUG many_to_many
deep_clone_human.chicken_ids => [1, 2]
@human.chicken_ids => [1, 2] --> SAME INSTANCES, SAME IDS - NOT NEW INSTANCES
*/Is this an issue?