Hi all,

I want to ask you about tailoring functions. I am using offlinesurveys and I have some performace issues.
Currently I have a survey that references an answer in other questions and when I start writing, on each key up event, validations run and surveys go slowly. I want to ask if there is any possibility to change onKeyUp events to other that make less validations.

Example question: What is the gender of {p1name}? When I fill p1Name, p1Name input field goes slowly (offlinesurveys)

Regards,

LJ

Please ask the vendor/developer - this is a LimeSurvey.org forum, that is not a LimeSurvey.org product.

You are right. I forgot to say that this same thing is happening using the mobile browser.
Thanks.

Example question: What is the gender of {p1name}? When I fill p1Name, p1Name input field goes slowly (offlinesurveys)

Wait a second. That doesn't make sense. You can't reference {p1name} before it is filled. In your survey the p1name input field has to be filled already before you can get to the question that uses {p1name}.

Seems like you have some logic problems in your survey.

Thanks for your soon answer.
When you have a survey (displaying all in one page) if the second question (p1Gender) references the first one (p1Name) on every keyup the second question start updating text that references the name. On every keyup, checkconditions(this.value, this.name, this.type) is called.

This is strange. What happens if you switch to question by question? Just to test?

On every keyup, checkconditions(this.value, this.name, this.type) is called.

Correct and if there are a lot of EM conditions on the page that can take some time.

I have come across situations where lots of array filtering rendered the page almost unusable due to this. In those cases, I inserted my own filtering script.

Question by questions reduces the size of called function. But now the thing is how to solve using one page survey.

Thanks. You are talking about remove EM get values and validations and use javascript (using SGQ code) instead EM?

Use your own piping script.

Insert something like this in the gender question:
Place this (untested) script in the source of the name question:

sdg_luj wrote: I am using offlinesurveys and I have some performace issues.

Shouldn't that be moved to the thirdparty-app section?
www.limesurvey.org/forum/offline-surveys-android-app
Or what is meant with offlinesurveys?

He talked about Offlinesurveys, but has the same problem with the mobile browser as well.

If you have a lot of event in same page, and this make a broken survey : maybe
- Reduce events on same page and take a group by group mode
- Reduce events on same page by review the logic.

Clearly : just with this event :
Your name is {name.NOAK)

it don't break any browser, then you have another logic part inside the same page.

Denis
PS : but i think have a 'option' in LS expression manager to disable the 'onkeyup' event and set it to onblur is a good idea.

In develop version : all inline javascript was removed, then a good javascript dev can update this.
github.com/LimeSurvey/LimeSurvey/blob/de...em_javascript.js#L27
in template (for example)