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mrlongleg1
2009 Feb 04
2
delete_if does not work on associations
I tried to user delete_if on an association:
class Group < ActiveRecord::Base
has_many :memberships, :dependent => :destroy
has_many :users, :through => :memberships
...
end
This is the controller method, trying to use delete_if. Although some
elements are removed (s2 < s1), the save method does not update the
association.
def intersect_or_remove_group
other_group =