Ruby on Rails

Hello, guys.

I'm searching for days, but I'm not finding a way to do this. How can I pass like an argument by 'link_to' the selected value of a selected_tag? Like this:

<%= select_tag 'cities', options_from_collection_for_select(@cities, 'id', 'city') %>

<%= link_to "See", deals_path(:id => ??) %>

Just to clarify, all the code below is working perfectly. I just don't know what I put in '??' on the ":id => ??" to pass the selected value of the select_tag.

To make easy in your minds, remember the Groupon site. The deals page. When you choose a place, then the deals showed to you is only the deals of that place. Exactly what I want...

OBS: This is not a form. Just an index page that show a list of things of the database.

Got this, guys? Can you help me?

Hug!

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