[Rails] Re: instantiating object and passing a new array into the block

On Jun 24, 7:42 pm, John Merlino <stoici...@aol.com> wrote:
> Hey all,
>
> Out of curiousity, all in Rails grabs all the records and converts
> them into an array. Map then iterates through the returned array,
> returning a new array. So why even use map here? And then the array
> gets passed as local variable bt. And we instantiate object and assign
> the bt array as a value of a hash of book_type. I dont see why map is
> needed here.
>
> book_details = BookType.all.map do |bt|
>   Student.new(:book_type => bt)
> end

So what do you think this could be simplified to if the use of map is
omitted?

Fred
>
> Thanks for response.

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