View source for CSC/ECE 517 Fall 2022 - E2279. Grading audit trail

== Team Introduction ==

=== Team Member ===

Zanxiang Wang (zwang236@ncsu.edu)

Nikhil Mehra (nmehra2@ncsu.edu)

Brian Davis (bbdavis4@ncsu.edu)

=== Mentor ===

Not Assigned

== Problem Description ==
A grading audit trail must be created and the following information needs to be stored:

*When an instructor assigns a grade, there needs to be an indication of who did it and when it was done. 
*Comments previously provided by other instructors must also be preserved.

This information must be stored every time an instructor edits a grade/comment and clicks the save button.

The grading audit trail can probably pattern off the submission records history (shown below) on expertiza.

The below page can be reached by logging in as instructor -> Manage -> Assignments -> View Submissions -> History

At the minimum, a grading log entry must include the instructor id, assignment id, student id, grade, comment and timestamp.

== Prior Work (Changes required) ==
We created a database called grading_history in the system which stores elements of instructor id, assignment id, grade type, student id, grade, comment, and timestamp.

We used MVC design to create a model, a controller, and a view for both of '''Review Grade''' and '''Submission Grade'''.

:Model: grading_history.rb. Has a list of attributes contains instructor id, assignment id, grade type, student id, grade, comment, and timestamp.
:Controller: grading_history_controller.rb. Saves a new entry into the database every time a review grade or submission grade is saved
:View: index_html.erb. Displays current submission or review's grading history. An existing example of this is a submission record in the system.

We modified grades controller, so that every time, a grade is submitted or edited, grading_history_controller.rb will call a method to create an entry saves into the database.

== General Design Plan ==

== Relevant Links ==