Dynamic Attendance Creation

[Rohaansandhu]

Tracking Info

Resolves #38

Changes

• Moved attendance creation call to the getSession endpoint
• Put session attendance create function in attendance controller
• Added date check on the backend to ensure future dates don't have attendances created
• Fixed frontend date picking to be compatible with UTC dates in the DB (previously was assuming dates in the DB were in local time)

Testing

• Tested locally and on the branch PR
• Test workflow:
• create new section w/ students
• create a bunch of sessions (some in the past, some in the future)
• check db to ensure that attendance objects weren't created on session creation
• then, use frontend UI and date picker calendar to select sessions in the past/future
• verify that attendances are created automatically when you click a session
• verify that old session attendances aren't overridden
• verify that future session attendance objects aren't created

Confirmation of Change

Verify attendance objects are created when session is loaded:

Verify future sessions don't create unnecessary attendance objects:

Verify old attendance objects aren't overridden/replaced:

[github-actions]

Visit the preview URL for this PR (updated for commit a374fcd):

https://meemli-dev--pr39-dynamic-attendance-zdf9a9kt.web.app

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[mraysu]

LGTM 🚀

[Himir-Desai]

LGTM