Loading Survey Data + ChoicesFromURL resets to first page

HGEM_James

created 6 years ago (modified 6 years ago)

Hi,

I've been recently upgrading SurveyJS in our application from 1.0.46 to 1.1.0, which I've noticed that when loading survey.data from localstorage and a question that is loaded from an URL is used to show and hide page visibility that it keeps reseting the page to the first page.

Example

https://plnkr.co/edit/EoLmxHK5phlxesTi3Zle?p=preview

This survey should remember what page you are on, and what you have answered, but it forgets the page, so first select any answer on page 1, then goto the next page; if you then reload/refresh the page it takes you back to page 1 and not page 2.

original issue

Originally I thought this was only to do with custom widgets, so in our custom widgets which get it's data from an API that the call back for choices changed 'choicesChangedCallback' no longer works or has disappeared, are we still able to listen for this callback?

I've tried to using 'registerFunctionOnPropertyValueChanged' listening for 'visibleChoices' instead but with no luck.

Example -

question.choicesChangedCallback = function() { render(question, el);};

Any help will be much appreciated

Thank You.

Answers approved by surveyjs Support

Andrew Telnov

created 6 years ago

Hello James,
You have got it right. The function should work correctly. Could you please review this code: select2 and select2_tagbox.
If you create an example in plunker with your custom widget then we look at it.

Thank you,
Andrew
SurveyJS Team

Show previous comments (3)

HGEM_James 6 years ago

Hiya Andrew

Thank you for your reply and clarification on this, but after some investigation I discovered it's actually a different issue.

I've setup our surveys to resume if incomplete, I also have a question that loads choices from an API, and the URL is formatted from a query string value buy using 'setVariable' this question also sets the visibility of a page, if you are on a page that is only visible when this question has an answer, and you re-load the page the visibility is re-set and you are not returned to the correct page, it seems to be an issue with 'cachedValueForUrlRequests' that is conflicting with survey.data; is there a way of disabling the cache?

I've setup an plnkr example below -

https://plnkr.co/edit/EoLmxHK5phlxesTi3Zle?p=preview

To re-create the issue, If you first answer the question 1, then click next to goto page 2; if you then re-load the page; you will end up on page 3 instead of page 2.

But clicking previous, still shows the data is loaded and the visibility has executed, but perhaps it's setting the page number to late?

Hope that makes sense, thanks in advanced.

James

Andrew Telnov 6 years ago

Hello James,
The reason of this behavior is clear. page2 is visible if question1 is not empty. It is empty from the beginning. You have to set survey.data first, it will make the page2 visible and after that set the currentPageNo.

PS: Please create a new ticket for new topic.

Thank you,
Andrew
SurveyJS Team

HGEM_James 6 years ago

Hi Andrew,

Thanks for your reply, but sadly setting the survey.data first then the page number still has the same issue; I've updated the the plnkr -

https://plnkr.co/edit/EoLmxHK5phlxesTi3Zle?p=preview

Selecting question 1; then going to page two and refreshing the page shows it goes back to the first page; one this I did notice is that is works correctly if you change the SurveyJS version to 1.0.92

apologies with the topic; I will update this topic to reflect the issue discussed.

James

Andrew Telnov 6 years ago

Hello James,
Here is what happens here. We added the code that resets the checkbox value on setting choices from the restful service. We needed it to fix the issue on complex values in checkbox/dropdown when value is complex, for example: {id: 3, score: 6}. On setting the undefined value the page2 becomes invisible for a moment and as result the next visible page becomes page1.
I have fixed this behavior on this commit. I have added the corresponded unit test.
We will release new minor version probably tomorrow. It will contains the bug fix.

Thank you,
Andrew
SurveyJS Team

HGEM_James 6 years ago

Hi Andrew,

Oh awesome, that makes perfect sense on why it was jumping and not setting back to the correct page, thank you so much for this, you saved me a massive head-ache!!

James

Andrew Telnov 6 years ago

You are very welcome!
It was the bug in the library on this very specific scenario.

Thank you,
Andrew
SurveyJS Team

Loading Survey Data + ChoicesFromURL resets to first page

Answers approved by surveyjs Support

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