Extending acts_as_commentable with serialize -- stack error

Rails
1

I’m using acts_as_commentable as a plugin, and I have a hash of Structs
I want to store in a text column I added to the Comments table. I did
the following:

  1. Added text column “feed” to Comments table in DB

  2. Created a file $RAILS_ROOT/lib/commentable_extensions.rb:

module CommentableExtensions
module Juixie
module Acts #:nodoc:
module Commentable #:nodoc:
module ClassMethods
def acts_as_commentable
serialize :feed, Hash
end
end
end
end
end
end

  1. Added to environment.rb

require 'commentable_extensions"

Opening a console I can load a Comment via

c = Comment.find(:first)

I can assign my hash to c.feed. But when I attempt c.save, I get this:

c.save
SystemStackError: stack level too deep
from c:/ruby/lib/ruby/1.8/yaml/rubytypes.rb:13:in
to_yaml_properties' from c:/ruby/lib/ruby/1.8/yaml/rubytypes.rb:167:into_yaml’
from c:/ruby/lib/ruby/1.8/yaml.rb:387:in quick_emit' from c:/ruby/lib/ruby/1.8/yaml/rubytypes.rb:164:into_yaml’
from c:/ruby/lib/ruby/1.8/yaml/rubytypes.rb:173:in to_yaml' from c:/ruby/lib/ruby/1.8/yaml/rubytypes.rb:172:into_yaml’
from c:/ruby/lib/ruby/1.8/yaml/rubytypes.rb:170:in to_yaml' from c:/ruby/lib/ruby/1.8/yaml.rb:387:inquick_emit’
… [snip]

Any ideas on what I’m doing wrong?

Thanks.

2

Followup:

After creating a smaller hash of structs and finding that #to_yaml
worked fine and then getting the stack overflow error when calling
#to_yaml on my app’s larger but no more complex hash (a 7K, 15-member
hash of 7-element flat structs), I’m wondering if #to_yaml is a feeble
little method that only works with the smallest and simplest of objects.
Now I’m off to look for another AR serialization solution. Any
suggestions?

Steve K. wrote:

I’m using acts_as_commentable as a plugin, and I have a hash of Structs
I want to store in a text column I added to the Comments table. I did
the following:

  1. Added text column “feed” to Comments table in DB

  2. Created a file $RAILS_ROOT/lib/commentable_extensions.rb:

module CommentableExtensions
module Juixie
module Acts #:nodoc:
module Commentable #:nodoc:
module ClassMethods
def acts_as_commentable
serialize :feed, Hash
end
end
end
end
end
end

  1. Added to environment.rb

require 'commentable_extensions"

Opening a console I can load a Comment via

c = Comment.find(:first)

I can assign my hash to c.feed. But when I attempt c.save, I get this:

c.save
SystemStackError: stack level too deep
from c:/ruby/lib/ruby/1.8/yaml/rubytypes.rb:13:in
to_yaml_properties' from c:/ruby/lib/ruby/1.8/yaml/rubytypes.rb:167:into_yaml’
from c:/ruby/lib/ruby/1.8/yaml.rb:387:in quick_emit' from c:/ruby/lib/ruby/1.8/yaml/rubytypes.rb:164:into_yaml’
from c:/ruby/lib/ruby/1.8/yaml/rubytypes.rb:173:in to_yaml' from c:/ruby/lib/ruby/1.8/yaml/rubytypes.rb:172:into_yaml’
from c:/ruby/lib/ruby/1.8/yaml/rubytypes.rb:170:in to_yaml' from c:/ruby/lib/ruby/1.8/yaml.rb:387:inquick_emit’
… [snip]

Any ideas on what I’m doing wrong?

Thanks.