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Asked: 2026-05-27T04:28:24+00:00

In my Rails application I am using the Google Maps AutoComplete API to allow

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In my Rails application I am using the Google Maps AutoComplete API to allow users to search for locations like so:

Places autocomplete API + Javascript Map API

The javascript code (Gist here…) returns a JSON hash and places a new marker with the choice from the drop down box. I have a listener for the marker that does nothing right now, which leads to my question.

  1. How do I make the ‘click’ event for the marker pass the the result hash (in this case ‘place’) to a rails controller?
  2. More generally, how does one pass JavaScript data to a Rails controller at all?

I’ve looked over other answers and can’t find a solution. Any help would be greatly appreciated.

Thanks!

~Dan B,

@thoughtpunch

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1 Answer

  1. Editorial Team

    JQuery can serialize data in all of it’s ajax related methods; you can use this to post raw json to the server:

    $.post("/foo", {place: {foo: "bar"}})

    On your controller:

    def action
  render :text => "Got: #{params[:place]}" # output: 'Got : {"foo":"bar"}'
end

    You’ll probably want to either only post the fields from your locations you care about or use JSON.parse to unserialize your json strings for manipulation server-side.

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