Rails check_box_tag与Ajax

Question

I'm trying to figure out how to pass data with ajax using a checkbox in Rails 3.2.11. I have the following line in my view

<%= check_box_tag(
        "institution_ids_#{inst.name.gsub(" ", "")}",
          inst.id,
          false,
        data: {
          remote: true,
          institution_id: inst.id}) %>

When I change the status of the checkbox, I can see that the controller is correctly getting called (specifically the index method of the controller, which is what I want as that is the view I'm in), however, I cannot seem to access the institution_id variable from the params hash on the controller. Can someone please explain how I use ajax to pass data from the view to the controller within a checkbox. I thought the remote: true function would correctly call the controller (which is does) with the additional parameters that I set (which it doesn't).

Answer 1

Why don't you use jquery to make Ajax call.

<%= check_box_tag( "institution_ids_#{inst.name.gsub(" ", "")}", inst.id, false %>

<script>
     $('#checkbox_id').change(function(){
        $.get('controller/action?inst_id='+$(this).val(), function(data,status){
            if(status == 'success'){
              alert(data)
             }
        })
     })
   </script>

In controller:

def action
   inst_id = params[:inst_id]
   #do something
   render :text => "success" 
end