Polymorhic Relationships Will Not Save

Rails
1

I’m at a loss. When the application saves a new model it will not update
the fields that hold the plymorphic relationship. Below are my
tables/models.

So when I do this:

@article = Article.new(params[:article])
@content_item = ContentItem.new(params[:content_item])
@content_item.content_type = @article
@content_item.save!

I get a new record in the articles table (good), and a new record in the
content_items table (good), but the content_type and content_id fields
are null. (ugh!) I can’t figure it out.

Maybe I’m making an obvious mistake, but it looks ok to me. Anyone see
an obvious mistake?

BTW - I’m on edge rails. I had 1.1 installed but was having issues
saving has_many :through relationships, so I went for the edge.

create_table :articles do |t|
t.column :body, :text, :nil => false
end

create_table :content_items do |t|
t.column :content_node_id, :integer
t.column :name, :string, :limit => 255, :nil => false
t.column :icon, :string, :limit => 255
t.column :slug, :string, :limit => 255, :nil => false
t.column :path, :string, :limit => 255
t.column :summary, :string, :limit => 255
t.column :status, :integer, :default => 1, :nil => false
t.column :publish_at, :datetime, :default => Time.now, :nil =>
false
t.column :take_down_at, :datetime
t.column :user_id, :integer
t.column :author_rating, :integer
t.column :allow_comments, :boolean, :default => true
t.column :allow_ratings, :boolean, :default => true
t.column :content_id, :integer
t.column :content_type, :string, :limit => 25
end

class Article < ActiveRecord::Base
has_one :content_item, :as => :content_type
end

class ContentItem < ActiveRecord::Base
belongs_to :content_type, :polymorphic => true

STATUS = {:deleted => 0, :pending_approval => 1 , :published => 2}

def before_save
slug = name.downcase.gsub(/[’"]/, ‘’).gsub(/\W+/, ’ ‘).squeeze(’
').strip.gsub(/ /, ‘-’)
end
end

2

I think instead of

belongs_to :content_type
and
:as=> content_type

you want to change ‘content_type’ to just ‘content’.

3

Joe wrote:

I think instead of

belongs_to :content_type
and
:as=> content_type

you want to change ‘content_type’ to just ‘content’.

Wow. I’m a dumb ass. You had it right. By mistake I named the field
“content_type”, with the intention of referring to is as
“content_type”…when in reality I had to refer to it as
“content_type_type”. know what I mean? Anyway…I see what I did wrong
now. Thanks.

4

Joe wrote:

I think instead of

belongs_to :content_type
and
:as=> content_type

you want to change ‘content_type’ to just ‘content’.

That didn’t work either. However, I did make the “content_type” one
word, instead of two, and the content_id column will update with the
appopriate Article.ID, but the contenttype will not update with the
class name…that should be populated with “Article”. Pretty stange huh?