def test_first_matching_item(self):
"""
Tests that first_matching_item returns a matching item in an iterable, or None
"""
iterable = [1, 2, 3, 4, 5]
first_matching = first_matching_item(iterable, lambda item: item == 1)
second_matching = first_matching_item(iterable, lambda item: item == 5)
third_matching = first_matching_item(iterable, lambda item: item == 10)
assert first_matching == 1
assert second_matching == 5
assert third_matching is None
def test_first_matching_item(self):
"""
Tests that first_matching_item returns a matching item in an iterable, or None
"""
iterable = [1, 2, 3, 4, 5]
first_matching = first_matching_item(iterable, lambda item: item == 1)
second_matching = first_matching_item(iterable, lambda item: item == 5)
third_matching = first_matching_item(iterable, lambda item: item == 10)
assert first_matching == 1
assert second_matching == 5
assert third_matching is None
def first_unexpired_run(self):
"""
Gets the first unexpired CourseRun associated with this Course
Returns: CourseRun or None: An unexpired course run
"""
return first_matching_item(self.courserun_set.all(),
lambda course_run: course_run.is_unexpired)
def get_start_date(self, program):
"""Get the starting date of the first course in the program"""
course = program.course_set.order_by("position_in_program").first()
if not course:
return None
first_unexpired = first_matching_item(
course.courserun_set.all().order_by("start_date"),
lambda run: run.is_unexpired)
return first_unexpired.start_date if first_unexpired else None
def get_end_date(self, program):
"""Get the ending date of the last course of the program"""
course = program.course_set.order_by("position_in_program").last()
if not course:
return None
last_unexpired = first_matching_item(
course.courserun_set.all().order_by("-start_date"),
lambda run: run.is_unexpired)
return last_unexpired.end_date if last_unexpired else None
def first_unexpired_run(self):
"""
Gets the first unexpired CourseRun associated with this Course
Returns: CourseRun or None: An unexpired course run
"""
return first_matching_item(
self.courserun_set.all(),
lambda course_run: course_run.is_unexpired
)
def deserialize_grade_data(user, course_runs, grade_data_list):
"""
Deserializes grade data for a user
"""
edx_course_key = None
for grade_data in grade_data_list:
edx_course_key = grade_data['edx_course_key']
course_run = first_matching_item(
course_runs, lambda cr: cr.edx_course_key == edx_course_key)
grade = Decimal(grade_data['grade'])
FinalGrade.objects.update_or_create(user=user,
course_run=course_run,
grade=grade,
passed=grade >= PASSING_GRADE,
status=FinalGradeStatus.COMPLETE,
course_run_paid_on_edx=True)
def deserialize_grade_data(user, course_runs, grade_data_list):
"""
Deserializes grade data for a user
"""
edx_course_key = None
for grade_data in grade_data_list:
edx_course_key = grade_data['edx_course_key']
course_run = first_matching_item(
course_runs,
lambda cr: cr.edx_course_key == edx_course_key
)
grade = Decimal(grade_data['grade'])
FinalGrade.objects.update_or_create(
user=user,
course_run=course_run,
grade=grade,
passed=grade >= PASSING_GRADE,
status=FinalGradeStatus.COMPLETE,
course_run_paid_on_edx=True
)
def deserialize_enrollment_data(user, social_username, course_runs, enrollment_data_list):
"""
Deserializes enrollment data for a user
"""
enrollment_handler = CachedEnrollmentHandler(user, social_username=social_username)
enrolled_programs = set()
edx_course_key = None
for enrollment_data in enrollment_data_list:
edx_course_key = enrollment_data['edx_course_key']
course_run = first_matching_item(
course_runs,
lambda cr: cr.edx_course_key == edx_course_key
)
enrollment_handler.set_or_create(course_run)
enrolled_programs.add(course_run.course.program)
if course_run.course.program.financial_aid_availability:
add_paid_order_for_course(user, course_run)
# Add ProgramEnrollments for any Program that has an associated CachedEnrollment
for enrolled_program in enrolled_programs:
ProgramEnrollment.objects.get_or_create(user=user, program=enrolled_program)
def deserialize_enrollment_data(user, social_username, course_runs,
enrollment_data_list):
"""
Deserializes enrollment data for a user
"""
enrollment_handler = CachedEnrollmentHandler(
user, social_username=social_username)
enrolled_programs = set()
edx_course_key = None
for enrollment_data in enrollment_data_list:
edx_course_key = enrollment_data['edx_course_key']
course_run = first_matching_item(
course_runs, lambda cr: cr.edx_course_key == edx_course_key)
enrollment_handler.set_or_create(course_run)
enrolled_programs.add(course_run.course.program)
if course_run.course.program.financial_aid_availability:
add_paid_order_for_course(user, course_run)
# Add ProgramEnrollments for any Program that has an associated CachedEnrollment
for enrolled_program in enrolled_programs:
ProgramEnrollment.objects.get_or_create(user=user,
program=enrolled_program)