how to update an array in array of objects

Question

I have following output available in a variable test

#<someobject customer=[#<someobject product=[#<someobject id='ABC123'>, #<someobject id=''>], id='ADE343'>]>

I am trying to convert its result as follows:

#<someobject customer=[#<someobject product=['ABC123','DEF143'], id='ADE343'>]>

I can achieve that using following but looks like overkill

test1 = test.customer.map { |p| p.product }.flatten.map { |e| e.id }
test.customer.map { |p| p.product = test1 }
test

Is there any better way to do this?

is this rails or just ruby? before customer.product returned an array of product objects I think but now you want it to return an array of strings? — Anthony
– Anthony, Commented Oct 1, 2018 at 19:27
Can you show the associated class definition (with initialize the only method), in part so we can test? — Cary Swoveland
– Cary Swoveland, Commented Oct 1, 2018 at 19:32

Andrey Deineko · Accepted Answer · 2018-10-01 19:31:40Z

2

test.customer.tap { |obj| obj.product.map!(&:id) }

answered Oct 1, 2018 at 19:31

Andrey Deineko

52.5k11 gold badges119 silver badges151 bronze badges

Sign up to request clarification or add additional context in comments.

1 Answer 1