嗨，我正在尝试在我的应用程序上使用 highcharts ......为此，我正在关注highcharts 情节，脚本有效，但是当我想输入真实数据时，我得到了这个：
我已按照所有步骤操作，但这是我的模型：
class TankingLog < ActiveRecord::Base
belongs_to :gas_station
belongs_to :car
attr_accessible :car_id, :cost, :date, :gallon, :gas_station_id, :km
validates_presence_of :cost, :date,:gallon,:km
validates_numericality_of :cost, :gallon
validates_numericality_of :km #:only_integer
def self.total_on(date)
where("date(date) = ?",date).sum(:cost)
end
end
这是我的 html.erb：
<!DOCTYPE html>
<html lang="en">
<head>
<style>
body {
padding-top: 60px; /* 60px to make the container go all the way to the bottom of the topbar */
}
</style>
</head>
<body>
<div class="container">
<h1>Listing Tankings</h1>
<% if @tankinglog.count<1 %>
<p>
There are no tankings for this car. Do you want to <%= link_to 'create a new tanking', new_user_car_tanking_log_path(@user, @car)%>
</p>
<% else %>
<script type="text/javascript" charset="utf-8">
$(function () {
new Highcharts.Chart({
chart: { renderTo: 'foo_chart' },
title: { text: 'Tankings by Day' },
xAxis: { type: 'datetime' },
yAxis: {
title: { text: 'Cost' }
},
series: [{
pointInterval: <%= 1.day * 1000 %>,
pointStart: <%= 0.weeks.ago.at_midnight.to_i * 1000 %>,
data: [data: <%= (1.weeks.ago.to_date..Date.today).map { |date| TankingLog.total_on(date).to_f}.inspect %>]
}]
});
});
</script>
<div id="foo_chart" style="width: 560px; height: 300px;"></div>
<table class="table table-condensed">
<tr>
<th>Cost</th>
<th>Gallon</th>
<th>Km</th>
<th>Date</th>
<th>Gas Station's id</th>
<th></th>
</tr>
<% for tankinglog in @tankinglog %>
<tr>
<td><%= number_to_currency (tankinglog.cost) %></td>
<td><%= tankinglog.gallon %></td>
<td><%= tankinglog.km %></td>
<td><%= tankinglog.date %></td>
<td><%= tankinglog.gas_station_id %></td>
</tr>
<% end %>
</table>
<br />
<%= link_to 'New tanking', new_user_car_tanking_log_path(@user, @car), :class => "btn btn-primary" %>
<% end %>
<br />
<br />
<%= link_to 'back', user_cars_path(current_user), :class => "btn btn-primary" %>
</div> <!-- /container -->
</body>
感谢您的帮助
这也是我的脚本显示：
