Ruby on Rails

I am accessing an external webservice to display and manipulate data.
The table is displayed in the view based on reading an external xml,
array values ​​are dynamic.
My goal is to select the checkbox two attributes get this array as
parameters that will be needed to delete the record in the webservice.
Everything would be easier if the webservice make available a single
key, but it is not possible.

So now I'm trying to create a unique id at runtime for each checkbox
selected in the elements and try to get it online.

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