I have a survey with some mandatory questions. When the answers are provided for them and the survey is submitted I get the message 'One or more mandatory questions have not been answered. You cannot proceed until these have been completed.' but the database is updated with the answers. When I click OK to that dialog the page is positioned at the top, whereas if I leave out an answer to a mandatory question the page is positioned at the question without the answer. If I click submit a second time the survey is accepted.

Any ideas on how I can fix or debug this?

I am running Version 2.73.1+171220

Thanks.

Can you attach a sample survey (.lss file) here?

Unfortunately, this survey uses custom JS and python code, so I cannot send it. I've done more debugging and found some interesting things. When we make a question mandatory it does not show on the page at all. So someone modified our JS code to explicitly show() those DOM elements. I think whatever reason lime has for not showing those questions is the same reason it does not pick up the answers for them. Showing the element in JS makes it appear, but does not 'fix' lime and make it pick up the answer. But some other piece of lime code does pick up the answer because the data ends up in the DB.

When we make a question mandatory it does not show on the page at all. So someone modified our JS code to explicitly show() those DOM elements.

Although I don't know how this could be connected to "mandatory", this sounds like a relevance problem to me. You cannot simply override relevance by forcing the question to appear - if a question is irrelevant it will not be recorded regardless of visibility.

Thanks for that reply. That is indeed the issue. The relevance is set based on the existence of answers to other questions, but those answers are set by JS code after the page is rendered. Looks like the only solution is for me to enforce the mandatory-ness myself in my JS code.

I don't understand the problem. If you have JS which sets answers which then render other questions irrelevant, shouldn't those other questions be skipped and therefor not recorded?

The answers set by the JS code make the other questions relevant.

Okay, in that case, you need to fire Expression Manager after setting the question.

How to do that depends the question type and LS version.

With text questions triggering a change or keyup event should work. With checkboxes, trigger a change event. With radios, trigger a click event.

Search the forums for "fire Expression Manager". I have contributed many examples.

Thanks. I have already implemented the enforcement of the mandatory questions in my JS code. But this is good to know and I may someday go back and change it.