How to filter view on Comments inside of Requirements Toolbox

I'm using MATLAB R2023b Update 6 (not sure what the Requirements Toolbox version is).

Could someone please help me create a view that filters on the comment field that includes any amount of text?

Specifically, I want to make a view and filter on items that have a comment present as shown below.

MATLAB documentation (slreq.Requirement - Work with requirement objects - MATLAB) says that the property Comments is an array structure. The fields of the Comments struct are Comments.CommentedBy, Comments.CommentedOn, Comments.CommentedRevision, and Comments.Text.

I am trying to filter using Comments.Text but I cannot figure it out. The filter I made that doesn't work is:

{"Comments.Text:~=" , ""};

The error that I receive is "Error applying Requirements view filter: No such attribute." I have also tried many different permutations to no avail.

Answer 1

[Josh Kahn]

Please let me know if this gets you what you need:

allReqs = slreq.find("Type", "Requirement");
emptyComments = cellfun(@isempty, {allReqs.Comments});
idList = strjoin({allReqs(emptyComments).Index}, "|");
selectionString = compose("^%s$", idList);
{"Index:regexp", selectionString};