对破折号小部件进行故障排除

Question

我创建了一个小部件来显示服务器负载。但是，它不显示服务器负载。

dashboard.erb

<li data-row="1" data-col="1" data-sizex="1" data-sizey="1">
  <div data-id="serverload" data-view="Graph" data-title="Server load" data-moreinfo="1 min intervals" ></div>
</li>

jobs/serverload.rb

points = []
(1..10).each do |i|
  points << { x: i, y: 0 }
end
last_x = points.last[:x]

SCHEDULER.every '1m' do
  points.shift
  last_x += 1
  uptime = %x('uptime').gsub(/.*: /, '\1').gsub(/,/, '\1')
  points << { x: last_x, y: uptime[0..3].to_f }
  send_event('loadavg1min', points: points)
end

简单地说，显示以下内容。我们如何对这个特定的小部件进行故障排除并找出它出现故障的地方？

Answer 1

离开docs 中的示例，尝试添加first_in: 选项以及将哈希作为第二个参数传递给send_event

试试：

SCHEDULER.every '1m', first_in: 1.second.since do
  points.shift
  last_x += 1
  uptime = %x('uptime').gsub(/.*: /, '\1').gsub(/,/, '\1')
  points << { x: last_x, y: uptime[0..3].to_f }
  send_event('loadavg1min', { points: points })
end

文档：

# :first_in sets how long it takes before the job is first run. In this case, 
it is run immediately
Dashing.scheduler.every '1m', first_in: 1.second.since do |job|
  Dashing.send_event('karma', { current: rand(1000) })
end