best_in_place - use updated value back in view

Question

I have an idea and a problem I can't seem to find answer or solution to. Some info if required later or helpful:

• Rails version 3.2.9
• best_in_place (git://github.com/straydogstudio/best_in_place.git)
• Ruby 1.9.3p327

Ok, so i have settings page where i can update individual setting by editing them with use of best_in_place gem. Works fine. Happy with that.

Some of the settings are interconnected, meaning, i have to sum or subtract them. As a helpful tip for the user, in my view, right beside the in place form for that settings there is also a calculated value.

Now, of course, I would like to see this value be update along with the attribute itself. I can't find a way to do that.

If i do it with the :data => it works, but i get the old and not the new value, so my view is always "1 step behind".

i have also tried with update.js.erb and _test.html.erb partial, but javascript file doesn't work. It is like it doesn't exist. I have double, triple checked where to put it and it is OK (app/views/controller/_partial.html.erb)

So. Pretty straightforward question would be; how can i access an updated value and use it back in view to update calculations. I personally think I should go with the partial and js file - but I have no clue why JS file isn't picked up. Any idea on that?

If there are any other options, i would more than appreciate the hint.

Thanks!

--EDIT (code added)

view:

<td>
  <%= best_in_place @s,:pay_after_bonus, :display_with => :number_to_percentage, :type => :input, :nil => "Klikni tu za spremembo!", :cancel_button=> "Prekliči" %>
  Cena: <span id="test"><%= number_to_currency(@s.family_member_price - ((@s.pay_after_bonus * @s.family_member_price)/100)) %></span>
</td>

settings_controller.rb:

def update
  @s = Setting.find(params[:id])

  respond_to do |format|
    @s.update_attributes params[:setting]
   @s.create_activity :update, :params => { :setting => params[:setting].keys.first }, owner: current_user
   format.json { respond_with_bip(@s) }
   format.js
 end
end

update.js.erb:

$( "#test" ).html( "<%= escape_javascript( render( :partial => "update") ) %>" );

_update.html.erb:

<strong>Test</strong>

-- EDIT 2:

OK, apparently it is possible to do something like I want this way:

$('.best_in_place[data-attribute="model_attribute"]').bind(
"ajax:success", function(event, data) {
    // function that will update whatever
});

in combination with

// respond to json request with
render :json => {"model" => @model}

&

"ajax:success", function(event, data) {
var result = $.parseJSON(data);
// from here the result var will be accessible with all the data returned by the controller.
// result.model is your object - use result.model.attribute  to get specific values...
}

But here it ends for me. I don't know how to use render :json => {"model" => @model} in my case, as it has to be done in combination with format.json { respond_with_bip(@s) }.

Where do I put render in controller? Currently I get 500 internal server errors trying to do this as a response.

I have found this solution here.

Thanks!!

Answer 1

In the ajax callback you can make another request to get the partial you want:

$('.best_in_place.myclass').bind("ajax:success", function () {
  $.getScript("http://www.someurl.com");
});

Then in the action you render a JS file (eg: show.js.erb), where you replace the target element with the results of the render:

$("#div-<%= @div.id %>").replaceWith("<%= escape_javascript(render(partial: 'some/partial', :layout => false)) %>");