How can i perform null handing for Photos while fetching from Database

Hi,

I want to perform the null handling for the photos which are not available for a particular user.

Here I'm fetching an user details from a database, I intentionally made that photo field to null for a particular user then I'm getting the following error

ERROR:

Interface Definition: Expression evaluation error at function a!imageField [line 37]: The image at index 1 in an image gallery component [label=“Photo”] has an invalid value for “document”. “document” must not be null.

Code:

a!imageField(

label: "Photo",

labelPosition: "ADJACENT",
images: a!documentImage(
document: local!getemp.photo,
)

my requirement is, If the photo field is null for a particular user it should display empty and if the user is having a photo then it should display picture (This is not an user photo, this is a dummy photo which i uploaded from another interface to table)

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