javascript and variables in the QID

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4 years 3 days ago #94117 by rodriguezm1
I have a series of questions. They are strings. Call them Question1, Question2, Question3, etc.

I want to write script to generate the QID and display stuff. Example:
<script type="text/javascript" charset="utf-8">
var i = 1; 
var theQID = "{Question" + i + ".answer}";
document.write(theQID);
</script>

I also tried
<script type="text/javascript" charset="utf-8">
var i = 1; 
var theQID = "{that.Question" + i + ".answer}";
document.write(theQID);
</script>

Both of these codes to not display anything. But this code DOES display something
<script type="text/javascript" charset="utf-8">
 
document.write({Question1});
 
</script>

Can someone help me to know what is going on with this? Is this possible to do? Or do you always have to input the QID literally, and not use text manipulation with variables? Thanks

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4 years 3 days ago #94130 by tpartner
The problem is that Expression Manager parses the placeholders inside the curly braces at the server level so you won't get JavaScript objects, you will just get strings.

Additionally, you can't use JavaScript variable in the Expression Manager placeholders.

Cheers,
Tony Partner

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4 years 3 days ago #94131 by sys_sby01
Hello Tony,

Is it possible to use Expression Manager (EM) in Javascript
if it is possible, how to do it?

Thank you very much

Regards
Sys_sby

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4 years 2 days ago #94141 by DenisChenu
Is

it possible to use Expression Manager (EM) in Javascript
if it is possible, how to do it?

Yes, or no ....

Yes:
$('#question{QID}').hide();

or

if({Q1.NAOK}=="Y") if Q1 is in another group (before the script).

But no for:

if({Q1.NAOK}=="Y") if Q1 is in the same page.

Denis

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4 years 2 days ago #94149 by tpartner
Yes, as Denis points out, EM can only be used to return strings if the EM variable is available before the page loads. So, his first example would actually be rendered as $('#question123').hide(); in the source.

Another note - EM is not parsed at all in template.js.

Cheers,
Tony Partner

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4 years 2 days ago #94150 by sys_sby01
Hello Denis/Tony,

Thanks for reply

In Javascript, Is it possible to get question number automatically by Expression Manager: {Qcode.qid}, so the script as like a below: $('#question{Q123.qid}').hide();

Thank you very much

Regards
Sys_sby

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4 years 2 days ago #94152 by tpartner
Yes but it would be safer to use:
$('#question{that.Q123.qid}').hide();

The {Qcode.qid} variable doesn't seem to work for question types with sub-questions (arrays, etc.)

Cheers,
Tony Partner

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4 years 1 day ago #94163 by DenisChenu

tpartner wrote: Yes but it would be safer to use:

$('#question{that.Q123.qid}').hide();

The {Qcode.qid} variable doesn't seem to work for question types with sub-questions (arrays, etc.)

Think it's more easy to use directly {QID} and {SGQ}

Seems to work great everywhere. For sub question line use {SGQ}SQ01, {SGQ}SQ02 etc ...

Denis

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4 years 1 day ago - 4 years 1 day ago #94165 by tpartner

Seems to work great everywhere.

No, not everywhere. See attached image and survey.



File Attachment:

File Name: limesurvey...6179.lss
File Size:20 KB

Cheers,
Tony Partner

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Last Edit: 4 years 1 day ago by tpartner.

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4 years 1 day ago - 4 years 1 day ago #94166 by DenisChenu
Oh, you're right, in another question type need that for subquestion, or use QCODE_SQ1.qid then it take the qid of the parent question.

For exemple:
{ARRAY_SQ1==ARRAY_SQ2} is allways true. :)

Denis
PS: when i say work great everywhere, speaking of {QID} and {SGQ}. It's the only EM who don't change if you change the question type.

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I'm not a LimeSurvey GmbH member, professional service on demand (or search sondages pro).
Last Edit: 4 years 1 day ago by DenisChenu.

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