CP3108 Staff Dashboard - Backend Modifications for Assessment Uploader

[Wong-ZZ]

Context

This PR is for modifying the backend API to support the Assessment Uploader component for the CP3018 Staff Dashboard project. The Assessment Uploader, also called the GroundControl, provides an interface for staff to manage assessments for the course. Staff can upload, delete, publish or update assessments through this interface.

Implementation

• Added multiple routes to aid with the uploading, deleting, publishing and updating of assessments.
• Modified and added various methods in xml_parserand in assessments to handle the additional routes. The 'parse_xml' method now returns the error message if there is any error in parsing.
• Modified how the is_published field for assessments work. Unpublished assessments are now viewable by staff and admin.
• Assessments have the 'is_published' field set to false by default when it is parsed.
• Changed the all_published_assessments in cadet/assessments/assessments.ex to all_assessments. Returns all assessments/all published assessments depending on the role of the user.
• Added a new field, isPublished, to the assessment overview.
• XML files for assessments no longer require the 'startdate' and 'enddate' tags. The assessments will now have a default start and end date relative to the time it was uploaded at.
• Existing tests have been modified to accommodate the modifications made.

Other Information

Corresponding PR to cadet-frontend: PR 1080
More info on the wiki: Assessment Uploader

[coveralls]

Pull Request Test Coverage Report for Build 2904

• 98 of 124 (79.03%) changed or added relevant lines in 5 files are covered.
• 3 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-1.6%) to 90.023%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
lib/cadet_web/controllers/assessments_controller.ex	30	36	83.33%
lib/cadet/assessments/assessments.ex	45	65	69.23%

Files with Coverage Reduction	New Missed Lines	%
lib/cadet/jobs/xml_parser.ex	3	92.5%

Totals
Change from base Build 2901:	-1.6%
Covered Lines:	1155
Relevant Lines:	1283

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💛 - Coveralls