r = User.reflections[:book]
r.instance_eval {new_klass = Object.const_get(@klass.name); @klass =
new_klass}
fixes the problem. So now I need to find where to put this.
def reverse_reflection(association_name)
refl = reflections[association_name.to_sym] or raise "No reverse
reflection for #{name}.#{association_name}"
Aha!
*Here is the solution...*
Define a file *lib/bug_fix.rb*
module BugFix
def self.apply
ActiveRecord::Base.descendants.select do |k|
k.respond_to? :reverse_reflection and k.include BugFix::HoboModel
end
end
module HoboModel
def self.included(base)
base.include Instance
end
module Instance
def reverse_reflection(association_name)
begin
super
rescue Exception=>e
refl = reflections[association_name.to_sym] or raise "No reverse
reflection for #{name}.#{association_name}"
other_end = refl.klass
# Put the new klasses
other_end.reflections.values.each do |r|
r.instance_eval {new_klass = Object.const_get(@klass.name)
@klass = new_klass}
end
# Now retry
super
end
end
end
end
end
Class in a config/initializers file:
BugFix.apply
This is a rails bug. And hobo is suffering from it. Now I can go on happily
until rails fixes the problem or we patch hobo.
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