[Rails] Re: How to store the same key multi times in a Hash ?

I was happy too quickly ...

I actually need to produce a structure like this ( to be used with
Mongoid DB criteria )

{ "$in" => [tags[0]], "$in" =>[tags[1]] , ....}

I may have to use a json structure ?

On 27 fév, 20:16, Erwin <yves_duf...@mac.com> wrote:
> given an Arra tags[]
>
> I need to produce a resulting Hash as following ..
>
> { "$in" => [tags[0]], "$in" =>[tags[1], ...}
>
> in which the key should be always the same and the value being an
> Array
>
> I tried this :
>
>          myHash = {}
>          tags.each do |tag|
>            h = {"$in" => [tag]}
>            myHash.merge!(h)
>          end
>
> but the merge! is only  changing the value ...  (as the key is always
> the same ..)
> (there is no += as with Array class  ...)
>
> thanks for your feedback

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