hide question if prefilled

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3 years 7 months ago #99927 by andrewz
andrewz created the topic: hide question if prefilled
I prefill one answer using a URL like this

www.example/index.php/survey/index/sid/7...712544X99X2152=12345

Then I set the "always hide" option. Most of the time, this works, but sometimes the parameters are missing, so the answer is blank.

When it is blank, I want to unhide the question. I tried using a relevance equation of !is_empty(foo), but this seems to always hide the question and break recording of the answer in both cases.

Version 2.00+ Build 130913

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3 years 7 months ago #99936 by tpartner
tpartner replied the topic: hide question if prefilled
I don't think you want to use relevance because the question should always be relevant, whether pre-populated or not.

Assuming it is a short-text question, try not using the "always hide" option, set up your survey to use JavaScript and add this to the question source:
<script type="text/javascript" charset="utf-8">	
	$(document).ready(function() {
		if($('#question{QID} input.text').val() == '') {
			$('#question{QID}.hide();
		}
	});	
</script>


Of course, this will also hide the question if a respondent answers it, moves on in the survey and then returns to the group later.

Cheers,
Tony Partner
Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.

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3 years 7 months ago #99947 by DenisChenu
DenisChenu replied the topic: hide question if prefilled
Hi,

Think i use 2 question.
First with hide settings prefilled by URL
Second : is_empty(FIRST)

ANd maybe a 2rd equation question type:
{FIRST.NAOK}{SECOND.NAOK}

Denis

Assistance on LimeSurvey forum and LimeSurvey core development are on my free time.
I'm not a LimeSurvey GmbH member, professional service on demand (or search sondages pro).
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3 years 7 months ago #99990 by andrewz
andrewz replied the topic: hide question if prefilled
Denis, this sounds like what I came up with.

I added a second question which is irrelevant when the first question is not empty.

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3 years 3 months ago - 3 years 3 months ago #102944 by dweisser
dweisser replied the topic: hide question if prefilled
I would like to hide the question if a textarea has been filled.

I'm using a question with a timer. It is the only question in the category.
I thought I had this working...
<script type="text/javascript" charset="utf-8">	
$(document).ready(function() {
  if($('#answer724821X200X1391').length > 0) {
			$('#question1391').hide();
alert($('#answer724821X200X1391').attr('value'));
  }
});
</script>

But it hides the question whether there is any text in the textarea or not. Any thoughts would be most appreciated. Thanks for maintaining such a great resource.
David
Last Edit: 3 years 3 months ago by dweisser.

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3 years 3 months ago #102945 by tpartner
tpartner replied the topic: hide question if prefilled
Try:
if($('#answer724821X200X1391').val() != '') {

Cheers,
Tony Partner
Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.

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3 years 3 months ago #102964 by dweisser
dweisser replied the topic: hide question if prefilled
That did the trick.

You know, I was trying that at one point, but I was trying to extend the if statement to handle a Default Answer.
So:
<script type="text/javascript" charset="utf-8">	
$(document).ready(function() {
if(($('#answer724821X200X1391').val() != '') or ($('#answer724821X200X1391').val() != 'Enter your response here.')) {
			$('#question1391').hide();
//alert($('#answer724821X200X1391').attr('value'));
  }
});
</script>

But, it didn't work. I just got rid of the Default answer and all is well.

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3 years 3 months ago #102973 by tpartner
tpartner replied the topic: hide question if prefilled
For a default answer in a text question, try:

if($('#answer724821X200X1391').val() != '' && $('#answer724821X200X1391').val() != 'Enter your response here.') {

Cheers,
Tony Partner
Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.

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1 year 6 months ago - 1 year 6 months ago #127834 by AGK925
AGK925 replied the topic: hide question if prefilled

tpartner wrote: I don't think you want to use relevance because the question should always be relevant, whether pre-populated or not.

Assuming it is a short-text question, try not using the "always hide" option, set up your survey to use JavaScript and add this to the question source:

<script type="text/javascript" charset="utf-8">	
	$(document).ready(function() {
		if($('#question{QID} input.text').val() == '') {
			$('#question{QID}.hide();
		}
	});	
</script>


Of course, this will also hide the question if a respondent answers it, moves on in the survey and then returns to the group later.


Is there documentation about how to do this for list or other non text questions? I would like to hide a question once it is answered. Thanks.
Last Edit: 1 year 6 months ago by AGK925.

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