How to use unscoped on associated relations in Rails3?

Oh. I fooled myself. Thought the following would not work… but it does:

Product.unscoped do
  my_photo.product
end

Notice that you have to call unscoped on the model with the default_scope that should be bypassed.

Also, inheritance has to be respected. If you have class InsuranceProduct < Productand class FinancialProduct < Product and a default_scope in Product, all of the following two combinations will work:

InsuranceProduct.unscoped do
  my_record.insurance_products
end

FinancialProduct.unscoped do
  my_record.financial_products
end

Product.unscoped do
  my_record.products
end

However, the following will not work although the scope is defined in Product:

Product.unscoped do
  my_record.financial_products
end

I guess that’s another quirk of STI in Ruby / Rails.