Polymorphic Belongs To Issue

[rovermicrover]

I am unsure if this is a javascript bug or just my own ignorance.

My set up

source.rb

class Source < Person
  has_many :media, :as => :origin, :inverse_of => :origin
end

author.rb

class Author < Person
  has_many :media, :as => :creator, :inverse_of => :creator
end

medium.rb

class Medium < ActiveRecord::Base
  ...
  belongs_to :creator, :polymorphic => true, :inverse_of => :media
  belongs_to :origin, :polymorphic => true, :inverse_of => :media
  ...
end

blog.rb

class Blog < Medium
  ...
end

rails_admin.rb

config.model Blog do
    ...
    edit do
      ...
      field :creator
      field :origin
      ...
    end
  end

schema for medium

...
:creator_id => :integer,
:creator_type => :string,
:origin_id => :integer,
:origin_type => :string
...

When I go to edit a blog's origin or creator in rails admin, I get two drop downs for each, the first drop-down for the models and the second one for the records. The first issue is the drop-down on the right for records is empty, and if I select an actually model from the one of the left it just adds undefined as an option to the right side.

I then tried to edit to the other way around, ie set up on author, field :media. No media entries showed up.

If I force a creator/origin relationship through the console, everything in the console seems to be ok. I can do Blog.where(whatever).first.creator, and Author.where(whatever).first.media, and everything works just fine, and if I go into rails admin it will then show on the right hand selector after load #Author (Author.id), but it also loads into the list everyone person, not just possible creators.

But if I select anything from the left, the model, selector, Author for example, then it will still say undefined in the second option, and if I scroll back up to nothing select for model it will go back to being blank. The funny thing is that its querying for the right entries when I select a model. So when I select authors from the left selector its doing

Author Load (0.6ms)  SELECT `people`.* FROM `people` WHERE `people`.`type` IN ('Author') ORDER BY people.id desc

Do I just need to declare everything custom when it comes to the relationships in rails admin in this case, or am I just leaving out some simple peace of code, or have I run into a javascript bug sense its basically throwing undefined?

Using rails 3.2.6 and Head master of Rails_admin.

PS: Checked the console on Google Chrome, no JS errors.

PS2: Almost forgot also tried whitelisting based on the wiki, didn't help.
medium.rb

attr_accessible :creator_id, :creator_type, :origin_id, :origin_type

PS3: If I save it as author undefined, and then load it back to edit again, it has the author model selected and if I go to the drop-down for entries, its populated with my authors. If I though select a different model I get undefined again, and if I go back and select Author its also just gives me undefined. It has to be a javascript error, because once again its still querying the database for the correct entries associated with the select model, its just nothing get returned. I also noticed with normal has_many that aren't polymorphic that this issue happens when I remove

associated_collection_cache_all true

From their options. Has anyone else had this issue, or am I just running into some type of conflict?

PS4: Here is my gemfile.lock in case there is a know conflict I am over looking.
https://gist.github.com/3021412

[rovermicrover]

Found a fix creating a pull request right now.

[rovermicrover]

the pull request for the record
#1229