Section type grade aggregation for Trends

[TyHil]

Overview

Trends is looking to add a new filter for grade data to aggregate based on section type. The UTD section types are as follows:

Section prefix	Meaning
0xx	Normal day lecture (before 5 PM)
0Wx	Online class
0Hx	Hybrid day class (online + face-to-face)
0Lx	LLC-only section
5Hx	Hybrid night class (online + face-to-face)
1xx	Lab section (sciences)
2xx	Discussion section (humanities)
3xx	Problem section (maths)
5xx	Night lecture (past 5 PM)
6xx	Lab night section (past 7 PM)
7xx	Exam section
HNx or HON	Honors-only

Changes

Currently Trends has a filter for semester which is why Trends uses the /grades/semester endpoint.

This issue is to create a new endpoint: /grades/semester/sectionType that returns grade data broken down by semester and then by section type within each semester. This would involve changes to the api/controllers/grades.go file.

Response format

/grades/semester response format

[
  {
    "_id": string, //ex 22S
    "grade_distribution": number[14]
  },
  ...
]

/grades/semester/sectionType response format

[
  {
    "_id": string, //ex 22S
    "data": [
      {
        "type": string, //ex 0xx
        "grade_distribution": number[14]
      },
      ...
    ]
  },
  ...
]