Calculate age in an Equation type question, using Date of Birth

More
5 years 2 months ago #84792 by tfj
tfj created the topic: Calculate age in an Equation type question, using Date of Birth
Greetings:

Has anyone calculated a person's age in a Equation type question, using the Date of Birth from a previous question?

I have been doing this with a MySQL query, but I would like to move it to LimeSurvey.

I am using 1.92+ build 120808 on a Windows test PC.

Thanks!

tfj

Please Log in to join the conversation.

More
5 years 1 month ago #84806 by DenisChenu
DenisChenu replied the topic: Calculate age in an Equation type question, using Date of Birth
Hello,

There a lot of script in web to do this, www.google.com/search?q=javascript+birth+age+calculation

Need little adaptation for LS date.

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).
An error happen ? Before make a new topic : remind the Debug mode .

Please Log in to join the conversation.

More
5 years 1 month ago #84820 by tfj
tfj replied the topic: Calculate age in an Equation type question, using Date of Birth
Denis:

Thank you for responding.

Unfortunately for me, before asking my question on the Forum, I had already spent quite a bit of time on Google and a few hours attempting to use the "Implemented Functions" in Expression Manager (from the LimeSurvey documentation) to make this work in an Equation type question. I have found that if I struggle a bit before turning to the Forum, I usually learn things better.

I know I am taking the wrong approach in my efforts, so I am hoping someone who might have already done this could give me the "little adaptation for LS date" that you mentioned. If not, I'll keep at it until I figure it out (or until my deadline, at which point I'll stick with the MySQL query I had already written) and will share it on the Forum.

Thanks again!

tfj

Please Log in to join the conversation.

More
5 years 1 month ago #84826 by DenisChenu
DenisChenu replied the topic: Calculate age in an Equation type question, using Date of Birth
Hello,

I don't know if EM can work.

But, with javascript:
First make a date with a date question, if you format is dd-mm-yy then:
Something like that to put the age in QQ:
<script type="text/javascript">
 function AgeFromBirth(birthdate,QQ) {
  aBirthDate=birthdate.split('-');
  if(aBirthDate.length == 3){
   birth = new Date(aBirthDate[2], aBirthDate[1] * 1 - 1, aBirthDate[0]);
   years = Math.floor((now.getTime() - born.getTime()) / (365.25 * 24 * 60 * 60 * 1000));
  }
  $("#question"+QQ+" input.txt").val(years);
  }
$(document).ready(function() {
 AgeFromBirth({INSERTANS:sssXgggXqqq},212);
});
</script>
If date of birth is in the same page, the a
$("#questionQDATEOFBIRTHnumber input.date").blur(function(){AgeFromBirth($(this).val(),212);});
ca do the tric.

And put this function with workarounds help:
docs.limesurvey.org/tiki-index.php?page=..._etc._in_LimeSurvey_

Denis,
PS: there are surely some error in javascript code, i make it directly in the forum
PS2: calculation was taken here: pankajlalwani.wordpress.com/2010/08/02/a...ng-javascriptjquery/

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).
An error happen ? Before make a new topic : remind the Debug mode .

Please Log in to join the conversation.

More
5 years 1 month ago #84828 by tfj
tfj replied the topic: Calculate age in an Equation type question, using Date of Birth
Denis:

Thank you for taking the time out to help!

I'll work on the example you provided . . . at least I know now that I was going down the wrong path with Expression Manager . . .

Thanks again!

tfj

Please Log in to join the conversation.

More
5 years 1 month ago - 5 years 1 month ago #84831 by Ben_V
Ben_V replied the topic: Calculate age in an Equation type question, using Date of Birth
In this thread it seems that some LS users did it...
Ben/

Benoît

EM Variables => bit.ly/1TKQyNu | EM Roadmap => bit.ly/1UTrOB4
Last Releases => 2.6x.x goo.gl/ztWfIV | 2.06/2.6.x => bit.ly/1Qv44A1
Demo Surveys => goo.gl/HuR6Xe (already included in /docs/demosurveys)
Last Edit: 5 years 1 month ago by Ben_V.

Please Log in to join the conversation.

More
5 years 1 month ago #84832 by tfj
tfj replied the topic: Calculate age in an Equation type question, using Date of Birth
benitov:

Thanks for pointing me to this thread. This will also be helpful!

tfj

Please Log in to join the conversation.

More
5 years 1 month ago #84833 by Ben_V
Ben_V replied the topic: Calculate age in an Equation type question, using Date of Birth
I've tried the 2nd code given on the thread using a date question type (with format dd.mm.yyyy) + a short-text question.... (both questions on the same page)
Everything is working fine with LS 1.90 but turned wrong with 1.92...
I don't know why...

File Attachment:

File Name: limesurvey..._164.lsg
File Size:8 KB

Benoît

EM Variables => bit.ly/1TKQyNu | EM Roadmap => bit.ly/1UTrOB4
Last Releases => 2.6x.x goo.gl/ztWfIV | 2.06/2.6.x => bit.ly/1Qv44A1
Demo Surveys => goo.gl/HuR6Xe (already included in /docs/demosurveys)
Attachments:

Please Log in to join the conversation.

More
5 years 1 month ago #84836 by tpartner
tpartner replied the topic: Calculate age in an Equation type question, using Date of Birth
Ben, it worked fine for me in 1.92. Maybe your IDs were wrong?

Here it is with more generic selectors to avoid the export-import/ID-change problem. The age value is simply loaded into the first short-text found.

File Attachment:

File Name: limesurvey...1324.lsg
File Size:10 KB

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

Please Log in to join the conversation.

More
5 years 1 month ago #84837 by tfj
tfj replied the topic: Calculate age in an Equation type question, using Date of Birth
Thanks, tpartner! I get a "NaN" error in the age text box.

On the off chance that it had something to do with the date format -- since I use "mm-dd-yyyy" -- I changed this setting to "dd-mm-yyyy" for the survey and I still got the "NaN" error. In the meantime, I changed it back to "mm-dd-yyyy."

This is another of those times where I figure I am missing something simple.

tfj

Please Log in to join the conversation.

Start now!

Just create your account and start using Limesurvey today.

Register now