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POValues 'doubled up' selecting out of XML in Nokogiri
 

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    <pre class="lang-xml prettyprint-override"><code>&lt;TrainingCenterDatabase xmlns="http://www.garmin.com/xmlschemas/TrainingCenterDatabase/v2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.garmin.com/xmlschemas/TrainingCenterDatabase/v2 http://www.garmin.com/xmlschemas/TrainingCenterDatabasev2.xsd"&gt; &lt;Activities&gt; &lt;Activity Sport="Running"&gt; &lt;Id&gt;2011-04-29T15:29:42Z&lt;/Id&gt; &lt;Lap StartTime="2011-04-29T15:29:42Z"&gt; &lt;TriggerMethod&gt;Manual&lt;/TriggerMethod&gt; &lt;Track&gt; &lt;Trackpoint&gt; &lt;AltitudeMeters&gt;298.6267090&lt;/AltitudeMeters&gt; &lt;Position&gt; &lt;LatitudeDegrees&gt;52.4864997&lt;/LatitudeDegrees&gt; &lt;LongitudeDegrees&gt;13.3531452&lt;/LongitudeDegrees&gt; &lt;/Position&gt; &lt;/Trackpoint&gt; &lt;/Track&gt; &lt;/Lap&gt; &lt;Lap StartTime="2011-04-29T15:29:42Z"&gt; &lt;TriggerMethod&gt;Manual&lt;/TriggerMethod&gt; &lt;Track&gt; &lt;Trackpoint&gt; &lt;AltitudeMeters&gt;498.6267090&lt;/AltitudeMeters&gt; &lt;Position&gt; &lt;LatitudeDegrees&gt;52.4864997&lt;/LatitudeDegrees&gt; &lt;LongitudeDegrees&gt;13.3531452&lt;/LongitudeDegrees&gt; &lt;/Position&gt; &lt;/Trackpoint&gt; &lt;/Track&gt; &lt;/Lap&gt; &lt;/Activity&gt; &lt;/Activities&gt; &lt;/TrainingCenterDatabase&gt; </code></pre> <pre class="lang-ruby prettyprint-override"><code>doc = Nokogiri::XML(xml) node_values = doc.xpath('//xmlns:Track', 'xmlns' =&gt; 'http://www.garmin.com/xmlschemas/TrainingCenterDatabase/v2').map do |i| {'AltitudeMeters' =&gt; i.xpath('//xmlns:AltitudeMeters').text} end nl.debug(node_values) </code></pre> <p>I always get double entries in my result:</p> <pre class="lang-ruby prettyprint-override"><code>[{"AltitudeMeters"=&gt;"298.6267090498.6267090"}, {"AltitudeMeters"=&gt;"298.6267090498.6267090"}] </code></pre> <p>I want something like this:</p> <pre class="lang-ruby prettyprint-override"><code>[{"AltitudeMeters"=&gt;"298.6267090"}, {"AltitudeMeters"=&gt;"498.6267090"}] </code></pre> <p>The problem could be the xmlns. But I don't know a solution. </p>
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