not duplicating created_at

[ivendorin]

I am duplicating a rails object, it is duplicating fine with all details except the created_at value of the object.

Here is the code . I want created_at value of raw_materials and costing_items .

@costing = @old_costing.deep_clone :include => [{style: :images}, {raw_materials: :costing_items} , :other_cost_fixeds, :other_costs, :exchange_rates ], :use_dictionary => true do |original, kopy|
                kopy.remote_picture_url = original.picture_url if kopy.is_a?(Image)
            end

[moiristo]

deep_cloneable uses ActiveRecord#dup, which doesn't preserve timestamps (see http://apidock.com/rails/ActiveRecord/Core/dup). I think the best solution is to set it explicitly in the block, like you did with the picture_url.

[ivendorin]

Since I want to preserve the timestamp of raw_materials and costing_items which are nested , can you please show an example of how to do this ? Is it possible to set the nested attributes original and copy ?

[ivendorin]

It is not clear in the documentation as to how to set block for the association ? Kindly explain .

[moiristo]

The block is called for every dup that has been made, even nested associations. That's why you need to check the type of the dup in the block.

[ivendorin]

What is the syntax to check the type ? I want to check for raw_materials association in the code

@costing = @old_costing.deep_clone :include => [{style: :images}, {raw_materials: :costing_items} , :other_cost_fixeds, :other_costs, :exchange_rates ], :use_dictionary => true do |original, kopy|
kopy.remote_picture_url = original.picture_url if kopy.is_a?(Image)
end

[moiristo]

Something like this:

kopy.created_at = original.created_at if kopy.is_a? RawMaterial