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Working with attachment fields in Script task

gbanks

I am attempting to work with files that have been attached in a form. How would I go about retrieving information within a JavaScript Script task? When I do a /activiti-app/api/enterprise/process-instances/${process_instance_id} call, I see that my variable for the attachment field = null, even when I have attached a document there.

I'm aware there is a relatedContentService, which requires some dependencies. Is there any way to check information (ANY information) on an attachment without leaving the BPMN editor?

Thank you

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Alfresco Process Services

Comments

darkredd

Greer Banks‌ you need to use bpm_package in this way:

<code> var documents = bpm_package.children; </code>

Then you can loop through it to get those documents.

gbanks

So I would still need to loop through the documents without being able to use it's ID from the form field? Because I can perform an api call to do the same thing, the issue is that documents are coming in in different orders based on what is attached.

afaust

The reply by ‌ is only valid for the Alfresco Content Services embedded Activiti runtime. It is not valid for the Alfresco Process Services runtime.

darkredd

‌ yes you have to still loop through. Even in the bpm_package the order is not necessarily as attached by the users. I do not think you can use the document IDs from the form field directly in a workflow start page without having started the process. As the process goes, the documents attached are still "soft-links" and have no relation yet with the process at that stage; only when the process has successfully started do the documents have the workflow metadata attached to them.

Hope this explanation is helpful.

Happy coding.

gbanks

The process would have been started by then. How can I access the metadata of the attachment form fields within a JavaScript?

gbanks

What would I do then in the Alfresco Process Services runtime?