Question

Suppose I have XML like this:

<child_metadata>
    <metadata>
        <attributes>
                <metadata_key value="include"/>
                <metadata_value value="value1"/>
        </attributes>
    </metadata>
    <metadata>
        <attributes>
                <metadata_key value="dont_include"/>
                <metadata_value value="value2"/>
        </attributes>
    </metadata>
    <metadata>
        <attributes>
                <metadata_key value="include"/>
                <metadata_value value="value3"/>
        </attributes>
    </metadata>
</child_metadata>

Using XSLT (without any extensions), I want to select only those values for which the metadata_key is “include”. So, for this example, I want to select value1 and value3.

How do I do this?

Answer 1

The XPath expression to use (for a template or in a for-each loop) would be:

//metadata_value[../metadata_key/@value='include']/@value

Since it isn’t clear what you mean by “select” I cannot post a complete XSLT sample. XSLT is for transformation, not query (“selection” of data); the query is done with XPath expressions such as the one I provided you above.