Source code for courses.utils

# Copyright (C) 2017 Semester.ly Technologies, LLC
#
# Semester.ly is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Semester.ly is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

import itertools
from operator import attrgetter


def is_waitlist_only(course, semester):
    return any(
        sections_are_filled(sections)
        for sections in get_sections_by_section_type(course, semester).values()
    )


[docs]def get_sections_by_section_type(course, semester): """Return a map from section type to Sections for a given course and semester.""" sections = course.section_set.filter(semester=semester).order_by("section_type") return { section_type: list(grouped) for (section_type, grouped) in itertools.groupby( sections, attrgetter("section_type") ) }
[docs]def sections_are_filled(sections): """Return True if all sections are filled beyond their max enrollment.""" return all(section.is_full() for section in sections)