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Automation Chain + setproperty + NOT mandatory Blob : Set Document BLOB properties with workflow var but got null problem

milonette_

Hello,

I want to set a Document var of type blob with a workflow var, in an automation chain, after selection of this var in a workflow form.

This workflow var is not mandatory and that is the problem.

If I try "Update Property" but got an object is null exception and nuxeo was in a right mess.
I try to set this variable with a condition like setting workflow var, But nuxeo tells me that the update properties only allow "scalar"...

@{WorkflowVariables["wkToto"] != null?WorkflowVariables["wkToto"]:""}
So I try "run script" but I couldn't get the "current document"... 😞

if (WorkflowVariables["wkToto"] != null){ Document.doc.setPropertyValue("amoi:toto",WorkflowVariables["wkToto"]) ; }

Do you know how to SET a document BLOB even if it's NULL with workflow var ?

thanks

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milonette_

Hello Me,

I don't know why the basic "update property" don't work with blob...

Nevertheless, this is the answer:

Automation Chain:

Document is in input.
Do A Run Script

if (WorkflowVariables["varamoiwk"] != null){ Document.doc.setPropertyValue("monxpath:mavalaupdate",WorkflowVariables["varamoiwk"]) ; }
Do A "Document Save" (This was missing 😉 )

This is an exemple of an other Run Script: http://doc.nuxeo.com/pages/viewpage.action?pageId=2392665

geekonspace

I did a custom operation save blob from workflow to document attached to workflow in my nuxeo ide and sent it to studio

@Operation(id=SaveBlobToInputDocument.ID, category=Constants.CAT_SERVICES, label="SaveBlobToInputDocument", description="Guarda blob en el inputdocument. Usar esta cadena solo en documentos con workflows activos")
public class SaveBlobToInputDocument {

    public static final String ID = "SaveBlobToInputDocument";
	private static final Log log = LogFactory.getLog(SaveBlobToInputDocument.class);
    @Context
	protected CoreSession session;


	@Param(name = "workflow_var", required = true)
	protected String workflowVar;

	@Param(name = "type_document", required = true)
	protected String typeDocument;
	
	@Param(name = "title_document", required = false)
	protected String titleDocument;	
	
    @Context
    protected OperationContext ctx;	

	@OperationMethod(collector = DocumentModelCollector.class)	
    public DocumentModel run(DocumentModel input) throws ClientException  {
    	if(workflowVar != null && !workflowVar.trim().equals("")&& typeDocument!= null && !typeDocument.trim().equals("")){
    		@SuppressWarnings("unchecked")
			Object obj =((Map<String, Serializable>)ctx.get(Constants.VAR_WORKFLOW)).get(workflowVar);          	          	
          	if (obj != null && obj instanceof Blob){	              	
          		Blob blob= (Blob) obj;
	          	DocumentModel blobDocument = session.createDocumentModel(typeDocument);
	        	blobDocument.setPropertyValue(Constantes.XPATH_FILECONTENT,(Serializable) blob);
	        	blobDocument.setPropertyValue(Constantes.XPATH_FILENAME,(Serializable)FileUtils.getCleanFileName(blob.getFilename()));
	        	if(titleDocument != null && !titleDocument.equals("")){
	        		blobDocument.setPropertyValue(Constantes.XPATH_TITLE, titleDocument);	
	        	}	        	
	        	try {
	    			blobDocument.setPathInfo(input.getPathAsString(),Framework.getService(PathSegmentService.class).generatePathSegment(blobDocument));
	    			session.createDocument(blobDocument);    		
	    		} catch (Exception e) {
    				throw new RuntimeException("Runtime: "+e);
	    		}
          	}
		}
    	else
    	{
    		log.warn("workflowVar o typeDocument estan vacios o nulos SaveBlobToInputDocument");
    	}
    	return input;
    }    
}

milonette_

thanks, that's great!

Benjamin_Jalon1

Think to check the answers that what useful for you

geekonspace

I also would like to know when my answer has errors or if there is a better way to do that. Thanks. I only want to help