I've just upgraded from dm-0.9.11 to 0.10.1, and I am having some
troubles. I've tracked it down to the relationship between these two
models:
http://pastie.org/644626 (also, see below)
Status belongs to collector, and collector has many statuses.
Additionally, status belongs_to one status in particular called
"seed". So there is a circular relationship going on. When I run my
specs, it goes into an infinite loop. You can get the gist of it from
this excerpt:
/Library/Ruby/Gems/1.8/gems/dm-core-0.10.1/lib/dm-core/resource.rb:
569:in `save_parents'
/Library/Ruby/Gems/1.8/gems/dm-core-0.10.1/lib/dm-core/resource.rb:
148:in `all?'
/Library/Ruby/Gems/1.8/gems/dm-core-0.10.1/lib/dm-core/resource.rb:
567:in `each'
/Library/Ruby/Gems/1.8/gems/dm-core-0.10.1/lib/dm-core/resource.rb:
567:in `all?'
/Library/Ruby/Gems/1.8/gems/dm-core-0.10.1/lib/dm-core/resource.rb:
567:in `save_parents'
/Library/Ruby/Gems/1.8/gems/dm-core-0.10.1/lib/dm-core/resource.rb:
343:in `save'
/Library/Ruby/Gems/1.8/gems/dm-validations-0.10.1/lib/dm-
validations.rb:48:in `save'
/Library/Ruby/Gems/1.8/gems/dm-validations-0.10.1/lib/dm-validations/
support/context.rb:29:in `validation_context'
/Library/Ruby/Gems/1.8/gems/dm-validations-0.10.1/lib/dm-
validations.rb:48:in `save'
./spec/collector_spec.rb:73:
It seems that when collector saves its parents, it fetches the "seed"
and saves it. Then save_parents is called on the seed, which points
back to the original collector, and so on...
This wasn't a problem in previous versions of DataMapper. Do I need to
change anything in the relationships between those two models?
Thanks in advance.
Drew
----------------------------------------------------------------
class Status
include DataMapper::Resource
property :id, Serial
property :text, String, :length => 0..255
property :collector_id, Integer
belongs_to :collector
end
class Collector
include DataMapper::Resource
property :id, Serial
property :name, String, :length => 0..255
property :status_id, Integer
belongs_to :seed, :model => 'Status', :child_key => [:status_id]
has n, :statuses
end
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"DataMapper" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/datamapper?hl=en
-~----------~----~----~----~------~----~------~--~---
