Is it possible to have survey triggers change a survey property?

Haim Reuveni

created 4 years ago (modified 4 years ago)

I added a custom property in my creator called "score threshold" (also made custom properties called "score" for questions & itemvalues) which is a minimum score a user needs to reach if we want to send him to a specific page on the survey ending.

I also want to use triggers, to check if at the end of the survey, any of the questions value equals a specific choice, and if so either change the threshold to 0 (so that when we compare the total score to the threshold we will send him to the specific page, even if the score is lower than the original threshold), or set a boolean variable we can check on the survey side when onComplete is called.

Also is there any way to set a trigger to check all questions if any of them have a specific value? i.e. all my questions are matrix/radiogroup questions with the same 4 choices and I want to check for a specific choice on any of them.

Answers approved by surveyjs Support

Andrew Telnov

created 4 years ago

Hello Haim,
Yes, you can do it. You can use run expression trigger and execute a custom function on it.
Here is the closest example.
Let us know if you need more help on this.

Thank you,
Andrew
SurveyJS Team

Show previous comments (3)

Haim Reuveni 4 years ago

So I need to setup a custom function in my survey and use that function name in the "run expression" ?
Also, it's a bit unclear how I get it to run the expression only on survey complete, the "complete" trigger type does not allow me to run an expression

Andrew Telnov 4 years ago

In this case I would use onCompete event and run/change the needed properties.
You can introduce a custom property if you need to change something optionally.

Thank you,
Andrew
SurveyJS Team

Haim Reuveni 4 years ago

In the end I took the expression built with the trigger conditionals, and used that as the expression of a calculated value. then when onComplete is triggered I check if that calculated value is true or false, and if its true I lower the scoreThreshold property to 0. is there anyway the expression can check any/all questions without having to individually compare each questions value to the specific value I'm looking for? atm my calculated value expression looks like:

JSON
"expression": "{7GAD-1.Feeling nervous, anxious or on edge?} = 'Almost every day' or {7GAD-2.Not being able to stop or control worrying?} = 'Almost every day' or {7GAD-3.Worrying too much about different things?} = 'Almost every day' or {7GAD-4.Trouble relaxing?} = 'Almost every day' or {7GAD-5.Being so restless that it is hard to sit still?} = 'Almost every day' or {7GAD-6.Becoming easily annoyed or irritable?} = 'Almost every day' or {7GAD-7.Feeling afraid as if something awful might happen?} = 'Almost every day' or {9PHQ-1.Little interest or pleasure in doing things} = 'Almost every day' or {9PHQ-2.Feeling down, depressed, or hopeless} = 'Almost every day' or {9PHQ-3.Trouble falling or staying asleep, or sleeping too much} = 'Almost every day' or {9PHQ-4.Feeling tired or having little energy} = 'Almost every day' or {9PHQ-5.Poor appetite or overeating} = 'Almost every day' or {9PHQ-6.Feeling bad about yourself or that you are a failure or have let yourself or your family down} = 'Almost every day' or {9PHQ-7.Trouble concentrating on things, such as reading the newspaper or watching television} = 'Almost every day' or {9PHQ-8.Moving or speaking so slowly that other people could have noticed, Or the opposite being so figety or restless that you have been moving around a lot more than usual} = 'Almost every day' or {9PHQ-9.Thoughts that you would be better off dead, or of hurting yourself} = 'Almost every day'"

Is there any way to simplify this expression?

Andrew Telnov 4 years ago

You can add a custom property into question. If you check the same value, then it can be a boolean property, that this question need to be checked. You can add a value type property if you need to check a particular question to a particular value. If you are looking for all questions, then you can better do this check onComplete event and not in calculated value.
In short, for your case, I do not see any reason to use the calculated value. You can have the following code onComplete event.

JavaScript
var questions = survey.getAllQuestions();
var hasValue = false;
for(var i = 0; i < questions.length; i ++) {
  if(questions[i],value == "Almost every day") hasValue = true;
}
if(hasValue) {
 //do your stuff.
}

Thank you,
Andrew
SurveyJS Team

Haim Reuveni 4 years ago

Thanks, I prefer my method because each survey creator can make is how calculated value and the survey can test it, regardless of the surveys choices

Andrew Telnov 4 years ago

Got it.

Thank you,
Andrew
SurveyJS Team

Is it possible to have survey triggers change a survey property?

Answers approved by surveyjs Support

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