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Rails nested attributes custom modification |
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I have been working with an issue for a while where every time I have associations they seem to have a lot of issues going to and from XML/Params. I was impressed with nested_attributes written by Eloy Duran and packaged with Rails 2.3.2. I realized thought that there was no means of having attributes that weren't sent back up to the server deleted. I also realized there was no simple workaround this without just skipping the nested_attributes.rb altogether. I asked the main group and it seems the consent is that it is dangerous to do this, but none the less, my software needs this feature so I just copied and updated Eloy's code and created my own dangerous_nested_attributes.rb . Which is below... and here.
It should have all of Eloy's features, with the addition of an option to :destroy_missing, and I only added it to the has_many relationship.
1.) Put dangerous_nested_attributes.rb in /lib
2.) Add two lines at the bottom of config/enviornment.rb
include DangerousNestedAttributes
ActiveRecord::Base.send :include, DangerousNestedAttributes
3.) Declare it in your the model linke so
class Recommendation < ActiveRecord::Base
has_many :recommendation_type_details, :dependent => :destroy
has_many :recommendation_details, :through => :recommendation_type_details
accepts_dangerous_nested_attributes_for :recommendation_type_details, :destroy_missing => true
...
end
4.) Restart your server
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