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Rails3 AJAX Error - undefined method `model_name' for Fixnum:Class
ActionView::Template::Error (undefined method `model_name' for Fixnum:Class):
1: $("#x_stock_list").html("<%= escape_javascript(render(@date_range)) %>");
app/views/home/index.js.erb:1:in`_app_views_home_index_js_erb__1074827181885368454_2504361900'

<script type="text/javascript">
$(function() {
    $( "#x_slider" ).slider({
    range: true,
    step: 1,
    min: 1,
    max: 52,
    values: [1, 52 ],
    stop: function(event, ui) {
       var url_param = $('#x_slider').slider('option', 'values');
       $('#x_low_selected').html(ui.value);
       $.ajax({
         type: "GET",
         data: ({ weeks: url_param[0] }),
         url: $(this).attr('data-href'),
         dataType: 'script'
       });
     }
   });
 });
</script>

def index
    unless params[:weeks]
      @date_range = 4
    else
      @date_range = Home.filter(params[:weeks])
    end
  end

def self.filter(weeks)
    timeago = weeks.to_i
  end

$("#x_stock_list").html("<%= escape_javascript(render(@date_range)) %>");

Parameters: {"weeks"=>"8", "_"=>"1327514933685"}

#From the above link:
result = javascript.gsub(%r(\|</|rn|334222002250|[nr"'])/) {|match| JS_ESCAPE_MAP[match] }
javascript.html_safe? ? result.html_safe : result

$("#x_stock_list").html("<%= @date_range %>");

$("#x_stock_list").html("<%= @date_range.to_s %>");

$.getJSON('traffic_sources.json', null, function(data) {
    pie_chart("traffic_sources_graph", data.traffic_sources);
});

function pie_chart(div, data)
{
   new Highcharts.Chart({
      chart: {
         renderTo: div,
         backgroundColor: '#dddddd'
      },
       series: [{
         type: 'pie',
         name: 'Browser share',
         data: data
      }]
   });
}