Using Arcade to Display Clickable Attachment Links in Map Tips

Denise Beckham

July 09, 2020 00:04

Hello, 

 

 

I found an article with Arcade Expression Examples, including one for Clickable Attachment Links.  

 

I copied and pasted the code to create an Arcade replacement token for a layer in one of my maps and replaced the URL with the same layer's URL.  However, I can't get it to work.  It always says "None", even for features that I know have attachments.  

 

 

The two main differences  between the layer in the sample site and the layer that I'm trying to implement this for are that my layer is a map service as opposed to a feature service, and it's secured.  

 

 

Has anyone else successfully included attachment links in their map tips for a secure service using Arcade Expressions or any other method?  

 

 

Thanks,

 

Denise

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  Permanently deleted user

  June 17, 2021 00:46

  Hi Denise. I just tried this and getting same result as you.

   

  As a test, I tried a simpler arcade expression like this:

   

  return Count(Attachments($feature))

   

  That should return a count of how many attachments for each feature, but nothing is returned.

   

  FYI, tried this with a map service as well as feature service.

   

  So, it seems the Attachments function is not working...

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  Denise Beckham

  June 24, 2021 17:11

  Thanks for your reply, Zorba. I tried something similar to your expression, but it didn't work for me either. I suspect it's because the service is secured. It's frustrating, but I did manage a workaround. The data for this particular service is stored in SQL, so I used a Data Link to the attachment table to get a count of attachments. Now the users will at least know when to look for attachments.

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  Permanently deleted user

  June 28, 2021 15:33

  Good idea with using data links. That could come in handy for some of our apps as well. Thanks.

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  Permanently deleted user

  November 17, 2021 18:13

  Did anyone get this to work? Same issue here. Unsecured service, tried both map service and feature service. returns 0 with Count(Attachments($feature)) but shows attachments below in the Attachments section so they are definitely there

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  Denise Beckham

  November 18, 2021 21:26

  Hi Chelsea,

  Unfortunately, I have not gotten this to work. I looked at the URL of an attachment by using the link in the Attachments section. I believe we would need some way of getting the token to build it into the URL. As far as I can tell though, Arcade doesn't have the capabilities to grab the token.

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