Replace bootstrap-datetimepicker

[HannesClausnitzer]

fixes #2546

[Copilot]

Pull request overview

This pull request replaces the bootstrap-datetimepicker JavaScript library with native HTML5 date and datetime-local input types. The change modernizes the date/time input handling by using browser-native controls instead of a third-party library, simplifying the codebase and reducing dependencies.

Changes:

• Replaced bootstrap-datetimepicker widgets with HTML5 native date/datetime inputs across all forms
• Removed bootstrap_datetimepicker.html template includes from multiple templates
• Extracted message rendering into a reusable messages.html template
• Updated plain_page templates to include message rendering explicitly

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
evap/staff/templates/staff_semester_import.html	Removed bootstrap_datetimepicker include and additional JavaScript block
evap/staff/templates/staff_evaluation_form.html	Added messages template include for plain_page display
evap/staff/templates/staff_course_copyform.html	Removed bootstrap_datetimepicker include
evap/staff/forms.py	Updated ImportForm, CourseCopyForm, and EvaluationForm with HTML5 date/datetime widgets
evap/rewards/templates/rewards_reward_point_redemption_event_form.html	Removed bootstrap_datetimepicker include
evap/rewards/forms.py	Updated RewardPointRedemptionEventForm with HTML5 date widgets
evap/evaluation/templates/messages.html	Created reusable messages display template
evap/evaluation/templates/evap_evaluation_edit_js.html	Removed bootstrap_datetimepicker include
evap/evaluation/templates/base.html	Removed bootstrap_datetimepicker CSS and extracted messages to separate template
evap/contributor/forms.py	Updated EvaluationForm widgets (contains bug - incorrect widget type)

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[hansegucker]

Also, the file evap/static/js/bootstrap-datetimepicker.min.js still exists.

But apart from that, this looks very good!

[niklasmohrin]

There are also still adjustments in _adjustments.scss for the bootstrap datetimepicker

[niklasmohrin]

Very cool!

We still mention bootstrap-datetimepicker in license.md and the places that are listed in the other comments

[janno42]

It would be nice to open the picker once the field receives focus.

Also, please investigate if we can force the date and time format to be our default format YYYY-MM-DD HH:mm.

[HannesClausnitzer]

So it seems the native datetime-picker in firefox and chromium doesn't meet our needs, as it doesn't support setting the locale and gives a few focus issues (when the date picker is shown, nothing can be typed into the input field).
I have found a different alternative to the bootstrap-datetimepicker that is quite similar but doesn't use jQuery:
https://github.com/Eonasdan/tempus-dominus/
You can try it out here:
https://getdatepicker.com/6/repl.html
What do you think about this? Would it be worth it implementing this?