Catalog Client Script to determine if Variable exists on form

[shembop]

I have a catalog item where I only present the one variable on one form, and I want to make it mandatory on a task. The reason is the answer from the tech drives the workflow path. Using a Policy to make it mandatory doesn't work well, as you cannot accept the task without also answering the question.

I thought I had found something with the g_form.hasField option, but alas, it does not seem to allow me to use that on variables.

Any way you can think of that allow me to "say" - Is the variable on the form, AND, has it been assigned to someone? - Then, make it mandatory, otherwise make it not mandatory.

[SanjivMeher]

Why not create a UI policy and set it to 'Apply to Requested item' and 'Apply to Catalog task' to make it mandatory, so that you dont have to create a script to check if the field exists and then make it mandatory?

[shembop]

As I had noted in my question -  Using a Policy to make it mandatory doesn't work well, as you cannot accept the task without also answering the variable question. So, people are having to assign it to themselves from a list view.

[SanjivMeher]

Would it be possible for you to check the cat_item field and then make it mandatory?

cat_item will have the sysid of the catalog item.