add a category to a document with Alfresco openCMIS extensio

[hatonis]

Hello,

I have to add a category to a document. I tried it with the Alfresco openCMIS extension but i didn't succeed.
Could you please tell me how to do that with this extension?

Thanks.

[ifeldman]

Hi, were you able to get it resolved? I'm having the same issue… would be great if you could share your solution

[piotrp]

Do you have any solution? I have the same problem.

[kaynezhang]

In alfresco category is implemented by and an aspect  cm:generalclassifiable(this aspect has an property named cm:categories).
So you can
1. add  cm:generalclassifiable aspect to the node;
2.obtain the node ref values for the category or categories to be applied to the node;
3.set these values for the appropriate property on the aspect.

You can refer to  http://docs.alfresco.com/4.2/topic/com.alfresco.enterprise.doc/concepts/opencmis-ext-adding.html
on how to add aspect with  Alfresco openCMIS extension

[piotrp]

Thank you for the reply. Did you try to work with Alfresco openCMIS extension particularly with cm:categories property?

[kaynezhang]

I didn't get your point.
A document's categories are saved in cm:categories property ,so you can modify  cm:categories directly.

[piotrp]

This code works for me:

if(alfDoc.hasAspect("P:cm:titled")) {
  Map<String, Object> properties = new HashMap<String, Object>();
  properties.put("cm:description", "My taggable document");
  alfDoc.updateProperties(properties);
}
‍‍‍‍‍‍‍

But now I add alfDoc.addAspect("P:cm:generalclassifiable");
When I list all the property definitions of this aspect I have many properties. Some of them I can add without problems like in the example above (for example I can use without problems cmis:name, cmis:lastModifiedBy and others).
There is a property with id cm:categories. I don't know how to add a property with such id. I would like to add new categories. Is this possible?
This code will not work:

if(alfDoc.hasAspect("P:cm:generalclassifiable")) {
  Map<String, Object> properties = new HashMap<String, Object>();
  properties.put("cm:categories", "my new category");
  alfDoc.updateProperties(properties);
}
‍‍‍‍‍‍‍

I suspect that the xml structure of categories is different. But anyway I would like to see a simple OpenCMIS extension code to achieve this:

1. create a category
2. add the created category to the document

Is this possible with OpenCMIS extension?

[kaynezhang]

I have just checked it ,There are 2 reasons why it didn't work.
   First,you can't just  set arbitrary value to cm:categories property ,you should obtain the node ref values of a  category and set it to cm:categories property.
        Second,there is an constraint on  Alfresco openCMIS extension ,Because cmis root is mapped to workspace://SpacesStore/company_home,but category root is workspace://SpacesStore/categoryRoot.So you can't  obtain  category node using Alfresco openCMIS extension api.

That is to say you can't add default classification  category to a document with Alfresco openCMIS extension.,you can use webscipt api instead.

[piotrp]

Thank you for your help, I will try the webscript api.