Show questions depending on answers in an open question

Question

Hi everyone,

I have an open entries question where each response is stored in its own variable (TE25x01, TE25x02, …).

On the following page, participants should rate their own entries. I’m already able to display their previous answers via HTML, and now I’d like to show a rating slider underneath each answer.

So essentially, for each entry, I want to display a corresponding rating question (AU01, AU02, …) only if the respective TE25x variable is not empty.

Conceptually something like:

if (value('TE25x01') !== '') {
    showQuestion('AU01'); // this command doesnt exist, its just for understanding
}

What is the correct way to conditionally display individual questions based on whether TE25x01, TE25x02, etc. contain values?

Thanks in advance!

Answer 1

Thre are various ways. One would be to replace showQuestion() by show() and copy the code for each combination.

A bit more elegant would it be to work with an array that defines the IDs of the open-ended inputs and the IDs of the questions, and work through that with a FOREACH loop.

Maybe the most elegant option is to also deduct the question ID from the input ID.

$answers = valueList('TE25');
foreach ($answers as $inputID => $answer) {
  if (trim($answer) != '') {
    // Use the number at the end of the input ID, so 01 from TE25x01
    $number = (int)ltrim(substr($inputID, 5), '0');
    $question = id('AU', $number);
    show($question);
  }
}