Caché DTI ContentPublisher: Web Facebook Image URI code example...

facebook.inc.csp

<csp:comment> FOR FACEBOOK: </csp:comment>

#[ new img set img = "" ]#

<csp:if condition=($data(gStory))>
	
	#[ set img = ##class(csp.web.assets.methods.image).imageUri("288pxw", gStory) ]#
	
</csp:if>

<csp:if condition=($length(img))>
	
	<link rel="image_src" href="http://registerguard.com#(..UnescapeHTML(img))#">
	
<csp:else>
	
	<link rel="image_src" href="http://www3.registerguard.com/images/rg.png">
	
</csp:if>

head.inc.csp

<csp:comment> Global head include... Include on index.csp and story.csp templates. </csp:comment>

...
<dti:file:include base="assets" file="/includes/csp/facebook.inc.csp" />
...

Image.csp

<script language="cache" method="imageUri" arguments='field:%String="", cmsStory:dt.cms.schema.CMSStory=-1' returntype="%String" procedureblock="1">
	
	set return = ""
	
	if ($length(field) && $isobject(cmsStory)) {
		
		set cmsPictureId = ##class(dt.cms.support.Rules).extractPicture(field, cmsStory, 0)
		
		if (cmsPictureId '= -1) {
			
			if ($isobject(##class(dt.cms.schema.CMSPicture).%OpenId(cmsPictureId))) {
				set return = ##class(dt.cms.support.Rules).getSrcStream(cmsPictureId)
			}
			
		}
		
	}
	
	quit return
	
</script>