CSC/ECE 517 Fall 2016/E1659. Refactor on the fly calc.rb

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This wiki page is for the description of changes made under E1659 OSS assignment for Fall 2016, CSC/ECE 517.

Peer Review Information

For users intending to view the deployed Expertiza associated with this assignment, the credentials are below:

  • Instructor login: username -> instructor6, password -> password
  • Student login: username -> student5431, password -> password
  • Student login: username -> student5427, password -> password

Expertiza Background

Expertiza is an educational web application created and maintained by the joint efforts of the students and the faculty at NCSU. It’s an open source project developed on Ruby on Rails platform and it’s code is available on Github. Using Expertiza students can bid for a particular project topic and the faculty assigns the same to different groups. Students can track their grades for previous projects and make new submissions for current projects. It also allows students to review each other’s work and improve their work upon this feedback.

Description of the current project

We worked on a module named on_the_fly_calc in this Expertiza based OSS project. We focussed on refactoring some methods which were very complex and also modified the language of the module to make it more ruby-istic. We also worked on refactoring the code to reduce redundancy. Our goal in this project was to make this model easier to read and maintain.

Files modified in current project

A model was modified for this project namely:
1. On_the_fly_calc

On_the_fly_calc

On_the_fly_calc is a module that is included in assignment.rb. What this module does is that it calculates the score for both students and instructors. E.g., when a student clicks “view my score”, Expertiza calculates the review scores for each review. This is called “on the fly” because expertiza stores the review scores based on each question (in answers table), but does not store the total score that a reviewer gives to a reviewee. Eg: For a set of 4 questions a reviewer gives 5 on 5 points for 2 questions and 4 on 5 points for other 2 questions. So only these points are stored in the database and when a reviewee clicks to see the score given by this particular reviewer, on_the_fly_calc module helps calculate the total score i.e. 90% in this case.

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