Questionnaire (plugin)

Export error : Output can not be buffered before calling download_data()

Thu, 09 Apr 2026 14:41:17 GMT

by Paul Rouger.

That works fine ! Thanks a lot.
Hope it will be fine too whe we will migrate on moodle 5 this summer
Paul.

Modernizing questionnaire

Thu, 09 Apr 2026 13:44:51 GMT

by Mike Churchward.

The refactoring of questionnaire to a more modern codebase is ongoing but delayed. Due to funding falling short of what was needed to dedicate more time to the task, the end of March / middle of April timeline will be missed. Work still continues, but at a slower pace. If you can support this project, please consider it.

Export error : Output can not be buffered before calling download_data()

Thu, 09 Apr 2026 13:42:06 GMT

by Mike Churchward.

Interesting. There was a bug fix in that version that should have fixed that. But, the output is caused by a PHP warning being displayed. If you set your Developer / Debugging settings to "minimal" oe "none", and/or turn off "display debug messages", it should work fine.

Questionnaire 5.0.1 – “All fields required” error when emailing non-respondents

Thu, 09 Apr 2026 08:05:01 GMT

by Mohamed ALBAZ.

Thank you very much. It solves the problem. I'm very grateful.

Questionnaire 5.0.1 – “All fields required” error when emailing non-respondents

Thu, 09 Apr 2026 07:15:21 GMT

by Jo Zhu.

I also met same issue, and use a workaround to fix it. The message form not display, because the <div class='table-responsive'> somehow width set as 0, when I inspect the page, i found the form already there. so I go to /var/www/moodle501/public/mod/questionnaire/styles.css

and add below code, the form can display, and can send message correctly.

#page-mod-questionnaire-show_nonrespondents .clearfix .table-responsive {

width: 80%;

}

remember to purche theme cache after you did this

Export error : Output can not be buffered before calling download_data()

Wed, 08 Apr 2026 18:56:48 GMT

by Paul Rouger.

Moodle 4.5.10+ (Build: 20260217) //Questionnaire mod_questionnaire 4.4.0 (Build - 2025110900) 2024080100 // PHP Version 8.2.29

Thanks !

Export error : Output can not be buffered before calling download_data()

Wed, 08 Apr 2026 17:56:47 GMT

by Mike Churchward.

What version of Moodle? What version/release of questionnaire?

Export error : Output can not be buffered before calling download_data()

Wed, 08 Apr 2026 15:00:05 GMT

by Paul Rouger.

Hi,

When I try to export data from a questionnaire I get this error :
Erreur de programmation détectée. Ceci doit être corrigé par un programmeur : Output can not be buffered before calling download_data()

Info de débogage (Debug Info)
Error code: codingerror
Trace de la pile (Stack content)

line 72 of /lib/classes/dataformat.php: core\exception\coding_exception thrown
line 519 of /mod/questionnaire/report.php: call to core\dataformat::download_data()

Tampon de sortie (output buffer)
 Warning: Undefined array key 3712 in /var/www/html/moodle/mod/questionnaire/questionnaire.class.php on line 3597 
Warning: Attempt to read property "content" on null in /var/www/html/moodle/mod/questionnaire/questionnaire.class.php on line 3597 
Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /var/www/html/moodle/mod/questionnaire/classes/question/choice.php on line 136 

Something deprecated ? Could you help ?

Thanks.

Questionnaire 5.0.2 Released

Wed, 08 Apr 2026 14:14:07 GMT

by Mike Churchward.

Questionnaire 5.0.2 supporting Moodle 5.0, 5.1 and 5.2 has been released. Details are in the "CHANGES" file. The release can be found on Github and the Moodle plugins database.

This will be the last release using this codebase. Future releases will utilize the new codebase currently in development.

If you can support this project, please consider it.

Section & Question Navigation Control

Sun, 29 Mar 2026 15:41:15 GMT

by Ihor Katerniak.

Hello, Is it possible in the questionnaire to have non-linear navigation between sections and blocks of questions? Specifically, can a user: navigate directly to any section or individual question, view a structured navigation interface (e.g., a menu or questionnaire map), and not be limited to moving only with “Next”/“Previous” buttons? If this functionality is currently not available: is it possible to implement it through settings or existing plugins, or would it require custom development? This feature is critical to ensure usability and efficient work with complex questionnaires. Thanks!!!!