Mercury.Snippet.load({
<% @page.block_instances.where(:version=>params[:draft] ? -1 : 0).select('distinct instance_id, block_id').each do |mercury_snippet| %>
  <%= mercury_snippet.instance_id %>: {name: '<%= mercury_snippet.block_id %>', 
                      options: {
                      <% @page.block_instances.where(:instance_id=>mercury_snippet.instance_id).where(:version=>params[:draft] ? -1 : 0).each do |field| %>
          'options[<%= field.field_name %>]': "<%= j field.field_value %>",
  <% end %>
  }},

  <% end %>
});