Question

Am I missing something obvious? Map keeps loading @oldjson which I set in the controller and won’t be replaced when I set it in the view.

View code:

<% @json = Map.find_by_id('39').to_gmaps4rails %>
<%= gmaps("markers" => {"data" => @oldjson, "options" => { "draggable" => true } } ) %>
<script>    
  Gmaps.map.replaceMarkers(<%= @json %>);
</script>

Thanks.

Answer 1

I guess you”re facing a js error with this current code.

The reason is the following:

• the js used and created by gmaps4rails is put within the yield :scripts

• so your additionnal js here is called before the map is created

Solution:

<% @json = Map.find_by_id('39').to_gmaps4rails %>
<%= gmaps("markers" => {"data" => @oldjson, "options" => { "draggable" => true } } ) %>
<% content_for :scripts do %>
 <script>    
  Gmaps.map.replaceMarkers(<%= @json %>);
  </script>
<% end %>