replace attribute value on a node with another specific attribute value

borgulas · September 16th, 2015, 03:00 AM

XML:

Code:

<field>
            <property name="data" value="false"/>
            <property name="space" value="false"/>
            <property name="declaration" value="false"/>
</field>

Wanted result:

Code:

<field>
            <property name="data" value="true"/>
            <property name="space" value="false"/>
            <property name="declaration" value="false"/>
</field>

With XSL I want to scan through documents, changing all the attribute values that are "false" and have a name attribute equal to "data", into "true" (so to in this instance only to change the value of the first property element).

I've been looking around but couldn't find the answer. Any suggestions to how would I complete this with XSLT?

*edited to clarify

mhkay · September 16th, 2015, 03:57 AM

Start by writing a template that copies everything unchanged:

Code:

<xsl:template match="node()|@*">
  <xsl:copy>
    <xsl:apply-templates select="node()|@*"/>
  </xsl:copy>
</xsl:template>

Then add template rules for the things you want to change, for example

Code:

<xsl:template match="property[@name='data']/@value[.='false']">
  <xsl:attribute name="value">true</xsl:attribute>
</xsl:template>

mhkay · September 16th, 2015, 04:00 AM

P.S. There is probably a better strategy for learning a language than "looking around". Wrox publishes some good books...

borgulas · September 16th, 2015, 04:11 AM

Quote:

Originally Posted by mhkay

P.S. There is probably a better strategy for learning a language than "looking around". Wrox publishes some good books...

Thx for the suggestion! I will try out your solution. And yes, this is probably a good idea. I don't need to write xslt so often, so I usually look around. I've gone through the w3c tuts, but it's too plain to get a good grip of more complex situations. Might I need it more often in the future I will consider reading one of his publications.

PS: It works! Already had the copy part you suggested and was as far as to have 'property[@name='data']', but didn't know you could add the /@value[.='false']. Thx again :)