Rails: Overriding ActiveRecord association method
You can use block with has_many to extend your association with methods. See comment "Use a block to extend your associations" here.
Overriding existing methods also works, don't know whether it is a good idea however.
has_many :tags, :through => :taggings, :order => :name do def << (value) "overriden" #your code here super value end end
If you want to access the model itself in Rails 3.2 you should use proxy_association.owner
Example:
class Author < ActiveRecord::Base has_many :books do def << (book) proxy_association.owner.add_book(book) end end def add_book (book) # do your thing here. endendSee documentation
I think you wanted def tags.<<(*new_tags) for the signature, which should work, or the following which is equivalent and a bit cleaner if you need to override multiple methods.
class << tags def <<(*new_tags) # rawr! endend