I want my form to only appear to users with certain value in their mobile worker custom fields

[Eric Stephan]

Hi all --

I am making a new form called D2.

I want to use the "form display condition" to place a bit of logic that will make this form only appear visible if the mobile worker has "9001" inside the custom user field called org_code.

So I put the following string into the Form Display condition:

count(instance('commcaresession')/session/user/data/org_code) > 0 and instance('commcaresession')/session/user/data/org_code = '9001'

But... it crashes my app when I log in to a smartphone as a worker and try to see the available forms.

It says:  the instance "commcaresession" in expression "instance('commcaresession')/session/user/data/org_code" used by "/" does not exist in the form. Please correct your form or application.

..... Can you help me make the code correct so only those desired people can see this new form?

Thanks!

Eric

[William Pride]

Eric,

Your expression looks correct to me. Have you tried using the new `#session` syntax as shown at the bottom of the documentation here?

Cheers,

Will

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[Eric Stephan]

that was good advice... but I made that change, updated the phone, very clearly synced the phone, and the error message stays exactly the same!!   which is weird because the error message still references that bit of text ("...commcaresession...")  that I actually removed from the code... but I guess that #session sort of gets substituted with the "instance(commcaresession)" text, that would explain why the message still says that?  I truly promise that I have updated...

I am submitting this as a bug report, but if you have ideas let me know.

Eric

[William Pride]

Filing a bug report sounds right, thanks Eric.

Cheers,

Will

[Eric Stephan]

Interesting. just FYI, the bug report people have found that the visibility logic statement is formed right... it works just fine when it's used for *module* visibility... but when the same statement is used for *form* visibility, it is generating the error.

The bug report folks said that they would talk to the developers and see if we could find out why.

Eric

[jes...@agimpact.org]

Hi I am having the same issue for filtering a form by user. I keep getting the same error!

[William Pride]

Hi Jessica,

This was a bug in CommCare that affected display conditions referencing the session for forms displayed at the menu root (IE "Display only forms" instead of "Display modules then forms." This will be resolved in CommCare 2.37. In the meantime the best workaround is to use the "Display modules then forms" option instead.

Apologies for the inconvenience. I'll update this thread when 2.37 becomes available.

Cheers,

Will