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每次查看我都可以获得一个成功的 Open Flash Chart。我现在尝试支持每个视图的多个 Open Flash 图表，但源代码显示两个生成的 div 的 id 是相同的：

# javascript at top of view
<%= javascript_include_tag "swfobject.js", :cache => true %>

# view itself
<%= @graph.html_safe %>  # html_safe is necessary for Rails 3
<%= @graph2.html_safe %>

# view's source code
<div id='flashcontent_913000'></div> 
  <script type="text/javascript"> 
    swfobject.embedSWF(
    "/open-flash-chart.swf","flashcontent_913000",
    "440", "310", "9.0.0", "expressInstall.swf",
    {"data-file":"/analytics%2Fpie1"}, {}, {} );
  </script> 
</div> 
<br /> 

<div id='flashcontent_913000'></div> 
  <script type="text/javascript"> 
    swfobject.embedSWF(
    "/open-flash-chart.swf","flashcontent_913000",
    "440", "310", "9.0.0", "expressInstall.swf",
    {"data-file":"/analytics%2Fpie2"}, {}, {} );
  </script> 
</div>

#controller
respond_to do |wants|
  wants.html {
    @graph = ofc2( 440, 310, 'analytics/pie1' )
    @graph2 = ofc2( 440, 310, 'analytics/pie2' )
  }
end
def pie1
... # functioning when put in the view alone
end
def pie2
... # functioning when put in the view alone
end

由于 id 相同，<%= @graph.html_safe %>尝试渲染 graph2 并失败，并且 graph2 根本不显示。我需要让 OFC2 生成不同的 ID。我怎样才能做到这一点？

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1 回答 1

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事实证明，例如，您可以在控制器中紧跟“analytics/pie1”之后指定一个 id。通过明确指定 ID，我们消除了算法生成相同数字并因此无法显示图像的任何可能性。

例子：@graph = ofc2( 440, 310, 'analytics/pie1', '/', 'my_unique_div' )

于 2010-11-01T04:12:41.437 回答