Sphurthy - fix: Assign Lesson Plan - Backend API and Logic

[sphurthy]

Description

Related PRS (if any):

None

Main changes explained:

• Added new API: POST /api/educator/assign-tasks to assign lesson plan tasks.
• Implemented prerequisite check to assign tasks only to eligible students.
• Created task entries in StudentTasks with status = incomplete and calculated deadlines.
• Updated StudentAtoms to in_progress upon assignment.
• Added structured API response with success, skipped, and error details.
• Introduced utility for deadline calculation based on assignment date.

How to test:

1. Setup

• Checkout branch
• npm install && npm run build && npm start
• Clear browser cache

2. Test Flow

• Use valid lesson_plan_id and assignment_date
• Trigger API call manually (Postman) or through UI flow (if available)

3. Verify DB Changes

• StudentTasks populated correctly
• Deadlines calculated correctly
• StudentAtoms updated to in_progress

Screenshots or videos of changes:

Notes:

CLOSED: Updated PR: #2145

[bhanuanishakkineni]

Hello Sphurthy,
I have reviewed and tested this PR. Here are the steps I have done.
Firstly, I have choose a lesson_plan_id from the database and using postman, requested API
POST /api/educator/assign-tasks to assign tasks to students.


Second, for the lesson_plan_id, I sent a GET request to api/educator/assignments/:lessonPlanId using postman to see if students were assigned the tasks.

I am not sure if the steps I did are correct. Initially, I am confused about how to create new lesson_plan. Hence I used existing lesson_plan. Please reply to this comment if my tests are valid.

[sphurthy]

Hello Sphurthy, I have reviewed and tested this PR. Here are the steps I have done. Firstly, I have choose a lesson_plan_id from the database and using postman, requested API POST /api/educator/assign-tasks to assign tasks to students. Second, for the lesson_plan_id, I sent a GET request to api/educator/assignments/:lessonPlanId using postman to see if students were assigned the tasks. I am not sure if the steps I did are correct. Initially, I am confused about how to create new lesson_plan. Hence I used existing lesson_plan. Please reply to this comment if my tests are valid.

Hello,
The tests you conducted are valid. Thank you for testing this.

[sphurthy]

This PR has been redone in PR: #2145