Symphony.

Hi folks :)

is it not possible to filter by page params in the Included Elements field in a dynamic XML data source?

I need to do something like:

/language/section[@handle = $current-page]/*

thanks for any insight!
Daniel

I've never tried it, but looking at the codebase, it should work.

https://github.com/symphonycms/symphony-2/blob/master/symphony/lib/toolkit/data-sources/datasource.dynamic_xml.php#L37

This line should replace any params in your XPath with the correct value, before running the XPath expression. Have you tried wrapping the param with curly braces perhaps?

/language/section[@handle = {$current-page}]/*

While this isn't valid XPath on its own, it might force Symphony to interpret $current-page as a parameter name.

Hi Nick,

thanks for the quick reply. Sadly, it does not work with the curly braces either. It's weird, i can use page params in the URL field of the data source but if i use them in the Included Elements field i get the following error in my xml:

<error>XML returned is invalid.</error>
<errors>
    <item>XSLTProcessor::transformToXml(): runtime error: file /www/htdocs/w00d7fac/fbp/ line 5 element copy-of</item>
    <item>XSLTProcessor::transformToXml(): runtime error: file /www/htdocs/w00d7fac/fbp/ line 5 element copy-of</item>
</errors>

if i replace $current-page with a page, say 'home', everything works as expected.

cheers
daniel

How frustrating — looks like that line isn't doing its job. You can use var_dump($this->dsParamXPATH);die; just after that line to see the value of the XPath, perhaps check it before and after the replace has occurred. I'll submit a bug report.

Hmm I just got this working using Symphony 2.3beta.

• XML: http://www.w3schools.com/xsl/cdcatalog.xml
• XPath: //cd[year='{$url-year}']

Then attached to a page and loaded using:

/my-page/?year=1985&debug

The curly braces were required. I also didn't spot above that you need the single quotes around the parameter, so that it compares as a string rather than an XML element name.

@Nick, do you spotted Data source created about 6 hours ago. Create another? View all Data sources when creating dymanic xml using the cdcatalog.xml?

Huh?

Found error with notice alert: https://github.com/symphonycms/symphony-2/issues/1262

Hi Nick,

thanks for looking into this!

Your "hack" with the curly braces and the single quotes worked in 2.2.5. Still a bug though from an xpath point of view ;) I would have never thought of putting a variable into single quotes *g

thank the heavens for this great community!
daniel