How to check if documents exist?

RE: How to check if documents exist?

Shanmathi Ponnusamy — Thu, 12 Sep 2024 05:36:06 GMT

Hi,

This is working but not sure whether this is good approach. Please give you thoughts. Stefan Helzle

not(
rule!CSCM_CheckIsNullOrEmpty(
value: index(
index(
a!documentViewerField(document: ri!document),
"contents",
null
),
"documentUrl",
null
)
)
)

RE: How to check if documents exist?

Mike Schmitt — Thu, 09 May 2024 12:24:50 GMT

[quote userid="21957" url="~/discussions/f/general/34863/how-to-check-if-documents-exist/134997"]i would propose a design that doesn't require you to check for the existence of a document[/quote]

*clicks nonexistent "like" button*

RE: How to check if documents exist?

Mathieu Drouin — Thu, 09 May 2024 02:21:37 GMT

In that case, i would propose a design that doesn't require you to check for the existence of a document.

RE: How to check if documents exist?

Chris — Wed, 08 May 2024 16:47:35 GMT

In those situations, I seem to have issues in other areas first - such as when a document is stored in a PV, but it is deleted via Related Action and the PV is not updated/cleared - I get forms not loading at all, etc (if they reference the document).

Expression evaluation error [evaluation ID = TPWUJ] in rule 'form_xyz' at function a!fileUploadField_17r1 [line 142]: Invalid Content ID

The string check isn't perfect, but has worked for all my use cases so far 🙂

RE: How to check if documents exist?

Mike Schmitt — Tue, 07 May 2024 21:03:15 GMT

but what if a nonsense ID is passed in? wouldn't it still render the same, and return a fake result?

(This would also apply when a document has already been deleted, but the process instance is still passing around references to its ID, as far as I know.)

RE: How to check if documents exist?

David Jimenez — Tue, 07 May 2024 20:29:41 GMT

Is an option to create your own plugin?

Anyway , in the post you can find different options to handle this case.

RE: How to check if documents exist?

Chris — Tue, 07 May 2024 19:33:18 GMT

In my experience, simple works for me - my checks only convert the document object to string which equals "[Document:]" for nulls. Have not had any issues with this yet.

or(
  rule!APN_isEmpty(ri!doc),
  tostring(ri!doc)="[Document:]"
)

RE: How to check if documents exist?

Mike Schmitt — Tue, 07 May 2024 18:19:21 GMT

I also shared my own utility rule most recently here. (it uses the "object existence" plug-in as well as null-check all wrapped together in a nice general expression rule.) I stand by my assertion that this really does require the use of a plug-in (at least for a solution that doesn't cause an error to be thrown).

RE: How to check if documents exist?

Mike Schmitt — Tue, 07 May 2024 18:15:43 GMT

[quote userid="274702" url="~/discussions/f/general/34863/how-to-check-if-documents-exist/134723"]I do not know of any way to determine document existence without a plugin.[/quote]

agreed - off the top of my head i think it maybe can't be done (other than MAYBE some hack utilizing unsupported functionality, which is WAYYYYY off-limits if you're already not even allowed to use plug-ins).

Seriously though, OP - have your "supervisor" call me and tell me why they're not allowing people to use plug-ins. It's an absolutely ridiculous requirement. You can quote me on that.

RE: How to check if documents exist?

nickk1385 — Tue, 07 May 2024 17:48:43 GMT

It is installed but my supervisor asked me to avoid using Plugins for this story. It's annoying I know but that's why I asked here to see

RE: How to check if documents exist?

Stefan Helzle — Sun, 05 May 2024 16:52:29 GMT

I do not know of any way to determine document existence without a plugin.

But wait ... in the applications I build, I always store meta data to the database, and whenever a file is created or deleted, I use that meta data to perform that activity. So I never get into a situation where I need to check whether a file exists for some random id.

Instead of solving the problem, I avoid it altogether.

RE: How to check if documents exist?

vinaykumar — Sun, 05 May 2024 00:57:07 GMT

Hello nickk1385 ,

You can use getcontentobjectdetailsbyid() function to check if the document exists or not.

If it does not exists, you would see "No object with this ID has been found" as an output.

RE: How to check if documents exist?

Mathieu Drouin — Sat, 04 May 2024 01:55:27 GMT

You have no plugins installed in your environment?

Content Tools is a pretty common one.

RE: How to check if documents exist?

nickk1385 — Fri, 03 May 2024 16:53:57 GMT

So those also suggest a plugin which I cannot do.

RE: How to check if documents exist?

Mathieu Drouin — Thu, 02 May 2024 22:19:54 GMT

Multiple threads on this topic: