ruby - Is there a better way than scoping to apply user-specific changes to models in Rails 3.2? -

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in application i'm attempting update rails 3.2 working fine in rails 3.0, there scoping rules use with_scope apply user-specific manipulations of model depending on user's permissions.

trivial model:

class item < activerecord::base   attr_accessible :value end

testing scope behaviour:

require 'test_helper'  class itemtest < activesupport::testcase   test "scoping create"     item.with_scope({ :create => { :value => 42 }})       item = item.create!       assert_equal 42, item.value     end   end    test "scoping create when caller tries override"     item.with_scope({ :create => { :value => 42 }})       item = item.create!(:value => 37)       assert_equal 42, item.value     end   end    test "scoping update"     item.with_scope({ :create => { :value => 42 }})       item = item.create!       item.update_attributes!(:value => 37)       assert_equal 42, item.value     end   end end

under rails 3.2, "scoping create" passes , other 2 fail. seems in rails 3.2 (possibly in 3.1 well, i'm not sure), :create helps initialise model on construction, whereas in past versions, overwrite other values had set @ save time.

in real application, decision of scope use depends on user's permissions.

i realise clean map before passing through controller, seems result in putting business logic controller.

so, there perhaps proper way deal sort of current-user-dependant business logic?


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