Rails | Ajax Response, from Controller - ruby-on-rails

Question

Got a partial view successfully interacting with my coffee script. Collection_Select change triggers script & resulting value is correct, Controller does hit def new successfully.
Only question remaining is how to access the results of the coffee script in the controller.
Partial View:
<% #modName = locals[:moduleName] %>
<% #id = locals[:id] %>
<%= form_with url: admin_command_path() do |f| %>
<%= collection_select(:refcode, :Code, Command.where(FLD: #modName), :Code, :Definition, options ={prompt: true}) %>
<br /><br />
<button class="btn_new">
<%= link_to "Execute", new_admin_command_path(mod: #modName, id: #id) %>
</button>
<% end %>
Coffee Script:
get_SubModule = ->
$('#refcode_Code').change (e) ->
com_value = $('#refcode_Code').val()
console.log 'COFFEEE IS LIFE', com_value
str = $('#refcode_Code :selected').text()
data: {sub_mod_str: com_value}
return
return
So now what.
ActiveAdmin.register Command do
def new
[need to access sub_mod_str here however possible]
end

Answer 1

I think when you Change value you need call Ajax and request controller
get_SubModule = ->
$('#refcode_Code').change (e) ->
com_value = $('#refcode_Code').val()
console.log 'COFFEEE IS LIFE', com_value
str = $('#refcode_Code :selected').text()
data: {sub_mod_str: com_value}
$.ajax(
type: 'POST'
url: your_url
data: data
dataType: 'json'
success: (data) =>
console.log(data)
error: (er) =>
console.log(er)
)
return
return
Controller
def new
byebug // check params
end