topic I want to query this picture category . in Alfresco Archive

I want to query this picture category .

nyszhangyong — Wed, 27 Jun 2012 09:23:52 GMT

helloWhy the query picture category , an exception is thrown ?The version of the software I use is 4.0.d.Please help me to analyze the reasons , or modify the code to solve the problems described below Thank you very much ![img]http://b100.photo.store.qq.com/psb?/V13vOWFy018Dz1/gi*rQBRdowdg3A6FUI5xT

Re: I want to query this picture category .

jpotts — Wed, 27 Jun 2012 14:45:36 GMT

One potential problem with your code is that you are assuming the node has been categorized, which may not be the case. If the node does not have the generalclassifiable aspect added your code will break where you reference node.properties['cm:categories'].

One way to defend against that problem is to add a hasAspect check, like this:
if (node.hasAspect('cm:generalclassifiable'))

That does not explain why your title is blank, but it may explain why your code is throwing an exception.

Also, as I pointed out in your other thread, please enclose long exceptions and code listings with

‍

tags. I have edited this post to show you how to do it. You will greatly increase your chances of getting responses in the future if you follow this convention in the forums.

Nice screenshots, BTW.

Jeff

Re: I want to query this picture category .

nyszhangyong — Thu, 28 Jun 2012 03:49:06 GMT

Thank Jeff,
read your reply ,
I again conducted a careful examination ,
I confirm that the node has been classified ,as shown below :
Please continue to help my analysis, thanks again.

[img]http://b101.photo.store.qq.com/psb?/V13vOWFy018Dz1/x46gHAihXAdargZI1PbXKGDsHzrvsznLFPhdS0JgVGs!/b/YcUPPjyYbQAAYsaHOTzmbQAA[/img]

[img]http://b101.photo.store.qq.com/psb?/V13vOWFy018Dz1/s3SS2b8DgC4FMGm5BARRN1o7G4aNzv2fEZwGI6qV7xE!/b/YTyvQjzEbAAAYg0tRDwrbQAA[/img]

Re: I want to query this picture category .

nyszhangyong — Thu, 28 Jun 2012 08:09:55 GMT

Thanks Jeff,
Thank you for the reminder,
The two issues have been resolved.

Re: I want to query this picture category .

jpotts — Thu, 28 Jun 2012 16:43:10 GMT

All of that work and you aren't going to tell us what the problem was? Don't keep it a secret!

Jeff

Re: I want to query this picture category .

nyszhangyong — Fri, 29 Jun 2012 08:49:25 GMT

The solution is :
node.properties['cm:categories'] This line of code returns an array of objects .
I have it resolved,Source code as follows：

scenePicQuery.get.json.ftl


<#escape x as jsonUtils.encodeJSONString(x)>
{
   "nodeAttributeDetail":
    [
     {
         "nodeUrl": "${data.nodeAttributeDetail.nodeUrl}",
         "nodeTitle": "${data.nodeAttributeDetail.nodeTitle}",
         "nodeCategories": "${data.nodeAttributeDetail.nodeTitle}"
     }
    ][b],
   "sceneArrayItems":
   [
      <#list data.nodeAttributeDetail.nodeCategoriesa as sceneObject>
      {
         "id": "${sceneObject.name}"
      }<#if sceneObject_has_next>,</#if>
      </#list>
   ][/b]
}
</#escape>
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The title of the solution is :
I re-download the “alfresco-community-4.0.d-installer-win-x32.exe”, and re- installation , then the value of the title is displayed .

I used to use alfresco program to compile and deploy .