topic Re: How to foreach an array returned from a Java class in a html webscript? in Alfresco Archive

How to foreach an array returned from a Java class in a html webscript?

mbel — Wed, 09 Nov 2016 08:50:55 GMT

Hello,I have created a webscript and Java class which return some data.The data is a JSONObject {"data": [{.....}]) which present an array. So, I want somehow to foreach the data in the html.1st how I can use this JSONObject which comes from Java in a javascript file and after that to foreach it in

Re: How to foreach an array returned from a Java class in a html webscript?

afaust — Wed, 09 Nov 2016 10:24:02 GMT

The syntax should be:

<#if items??>
   <ul>
     <#list items as item>
       <li>${item.name}</li>
     </#list>
   </ul>
  <#else>
   <p>Empty</p>
  <#if>

One additional thing you have to keep in mind is that a JSONObject or arbitrary Java object may not be iterable in FreeMarker. The best types for handling sequences in FTL are Collection or array types.

Re: How to foreach an array returned from a Java class in a html webscript?

mbel — Wed, 09 Nov 2016 11:53:45 GMT

I changed to your syntax and now I have the below error.

Caused by: freemarker.core.ParseException:

Unknown directive: #if. Help (latest version): http://freemarker.org/docs/ref_directive_alphaidx.html; you're using FreeMarker 2.3.20.

Just to mention that I have generated maven alfresco amp archetype, so I havent made any custom changes concerning FreeMarker.

Could you please tell me also how I can use the returned object from java in webscript js file?

Because if I am not able to use the FreeMarker, I can foreach the data in the js.

Re: How to foreach an array returned from a Java class in a html webscript?

mbel — Wed, 09 Nov 2016 12:11:18 GMT

The above exception was because in your syntax the last <#if> should be a closing tag.

However, Could you please answer me to the above question regarding the js file?

Thank you in advance.

Re: How to foreach an array returned from a Java class in a html webscript?

kaynezhang — Wed, 09 Nov 2016 12:12:34 GMT

Axel Faust Missed character / in the end </#if> tag

<#if items??>

<ul>

<#list items as item>

</#list>

</ul>

<#else>

<p>Empty</p>

</#if>

Re: How to foreach an array returned from a Java class in a html webscript?

kaynezhang — Wed, 09 Nov 2016 12:31:50 GMT

where would you like to run your javascript in ?

If it is in server side ,you already use java backed webscript,you don't need javascript.

If it is running in share you can do it like this

result = remote.call("/you webscript url");

var items = JSON.parse(result),

for (var i = 0, ii = items.length; i < ii; i++)

{

var item = items[i];

}

Re: How to foreach an array returned from a Java class in a html webscript?

mbel — Wed, 09 Nov 2016 13:41:18 GMT

Could you please provide documentation about remote api?

I receive error message that remote is not defined:

Uncaught ReferenceError: remote is not defined

Re: How to foreach an array returned from a Java class in a html webscript?

afaust — Wed, 09 Nov 2016 14:07:17 GMT

Documentation can be found in docs.alfresco.com for Surf and Repository-tier. The fact that "remote" is not defined means that your web script is run on Repository-tier (not in Share) which does not provide this object.

Re: How to foreach an array returned from a Java class in a html webscript?

mbel — Wed, 09 Nov 2016 15:16:07 GMT

Yes, its not in Share.

Re: How to foreach an array returned from a Java class in a html webscript?

mbel — Wed, 09 Nov 2016 21:35:08 GMT

instead of remote.call method, can I use ${JsonObjectFromJava} somehow.

Something like that -> var items = JSON.parse(${JsonObjectFromJava})?

Re: How to foreach an array returned from a Java class in a html webscript?

kaynezhang — Thu, 10 Nov 2016 03:10:45 GMT

Try jsonUtils.toJSONObject(JsonObjectFromJava)