topic Re: Freemarker scripts... how to detect missing properties? in Alfresco Archive

Freemarker scripts... how to detect missing properties?

theorbix — Sun, 22 Jun 2008 18:24:23 GMT

I'm writing a custom Web Script that returns the result of a query in JSON format.This is the Freemarker script I use to generate the JSON output:<#assign x = 0> {"recordsReturned":${search.itemsPerPage}, "totalRecords":${search.totalResults}, "startIndex":0, "sort":null,

Re: Freemarker scripts... how to detect missing properties?

pmonks — Sun, 22 Jun 2008 18:43:19 GMT

Freemarker includes a "missing value test operator" that probably does what you're after - it's described at http://freemarker.sourceforge.net/docs/dgui_template_exp.html#dgui_template_exp_missing_test.

If you're doing any significant amount of Freemarker scripting, you should keep the (superb!) Freemarker reference documentation close by - it lives at http://freemarker.sourceforge.net/docs/.

Cheers,
Peter

Re: Freemarker scripts... how to detect missing properties?

theorbix — Sun, 22 Jun 2008 18:55:02 GMT

Yep! One minute after posting, I found the correct syntax in another .ftl sample script:


            <#if row.properties.description?? == true>
           "description":"${row.properties.description}",
           </#if>
‍‍‍‍‍

Sometimes I should RTFM…

Re: Freemarker scripts... how to detect missing properties?

pmonks — Sun, 22 Jun 2008 19:15:09 GMT

Sometimes I should RTFM…

Particularly the Freemarker manual - it's one of the best examples of open source documentation I've ever seen! :wink:

Cheers,
Peter

Re: Freemarker scripts... how to detect missing properties?

mikef — Mon, 23 Jun 2008 09:53:43 GMT

You can also use this:

${myVar?default('default text')}‍

to output a variable if it exists, or a specified default value if it doesn’t. Saves on using lots of 'if/else’ statements.

Re: Freemarker scripts... how to detect missing properties?

mikeh — Mon, 23 Jun 2008 13:27:03 GMT

"default" is deprecated - see http://freemarker.org/docs/dgui_template_exp.html#dgui_template_exp_missing_default

Mike

Re: Freemarker scripts... how to detect missing properties?

satishvarmadand — Fri, 09 Jan 2009 21:06:07 GMT

Hi,
I am getting stuck with freemarker templates. I am using opensearch and i can successfully do a search. But the searcg results contain default metadata like description, author etc …

<name>${row.properties.creator}</name>

So how can i get the complete meta-data set for a node. How can i find out all the row properties?

I actually extended the default metadata, so i would like get back the new extended metadata values like category (my custom meta-data) in the open search results.

Is this possible? what values should i need to update in the ftl template - "keywordsearch.get.atom.ftl"

can anyone help me

Thanks