def _get_credentials(self):
"""Returns two lists of credentials: a course list and a program list"""
# Get the content types for course and program certs, query for both in single query
course_cert_content_types = ContentType.objects.filter(
app_label="credentials",
model__in=["coursecertificate", "programcertificate"])
course_certificate_type = None
program_certificate_type = None
for course_cert_content_type in course_cert_content_types:
if course_cert_content_type.model == "coursecertificate":
course_certificate_type = course_cert_content_type
elif course_cert_content_type.model == "programcertificate":
program_certificate_type = course_cert_content_type
# Get all user credentials, then sort them out to course/programs
user_credentials = filter_visible(
UserCredential.objects.filter(
username=self.request.user.username,
status=UserCredential.AWARDED,
credential_content_type__in=course_cert_content_types,
))
course_credentials = []
program_credentials = []
for credential in user_credentials:
if credential.credential_content_type_id == course_certificate_type.id:
course_credentials.append(credential)
elif credential.credential_content_type_id == program_certificate_type.id:
program_credentials.append(credential)
return course_credentials, program_credentials
def handle_only_visible(qs, _name, value):
return filter_visible(qs) if value else qs
def get_record_data(user, program_uuid, site, platform_name=None):
program = Program.objects.prefetch_related("course_runs__course").get(
uuid=program_uuid, site=site)
program_course_runs = program.course_runs.all()
program_course_runs_set = frozenset(program_course_runs)
# Get all pathway organizations and their statuses
program_pathways = program.pathways.all()
program_pathways_set = frozenset(program_pathways)
user_credit_pathways = (
UserCreditPathway.objects.select_related("pathway").filter(
user=user, pathway__in=program_pathways_set).all())
user_credit_pathways_dict = {
user_pathway.pathway: user_pathway.status
for user_pathway in user_credit_pathways
}
pathways = [(pathway, user_credit_pathways_dict.setdefault(pathway, ""))
for pathway in program_pathways]
# Find program credential if it exists (indicates if user has completed this program)
program_credential_query = filter_visible(
UserCredential.objects.filter(
username=user.username,
status=UserCredential.AWARDED,
program_credentials__program_uuid=program_uuid))
# Get all of the user course-certificates associated with the program courses (including not AWARDED ones)
course_certificate_content_type = ContentType.objects.get(
app_label="credentials", model="coursecertificate")
course_user_credentials = filter_visible(
UserCredential.objects.prefetch_related("credential").filter(
username=user.username,
credential_content_type=course_certificate_content_type,
))
# Maps course run key to the associated credential
user_credential_dict = {
user_credential.credential.course_id: user_credential
for user_credential in course_user_credentials
}
# Maps credentials to visible_date datetimes (a date when the cert becomes valid)
visible_dates = get_credential_visible_dates(course_user_credentials)
# Get all (verified) user grades relevant to this program
course_grades = UserGrade.objects.select_related(
"course_run__course").filter(username=user.username,
course_run__in=program_course_runs_set,
verified=True)
# Keep track of number of attempts and best attempt per course
num_attempts_dict = defaultdict(int)
highest_attempt_dict = {} # Maps course -> highest grade earned
last_updated = None
# Find the highest course cert grades for each course
for course_grade in course_grades:
course_run = course_grade.course_run
course = course_run.course
user_credential = user_credential_dict.get(course_run.key)
if user_credential is not None:
num_attempts_dict[course] += 1
visible_date = visible_dates[user_credential]
last_updated = max(
filter(None,
[visible_date, course_grade.modified, last_updated]))
# Update grade if grade is higher and part of awarded cert
if user_credential.status == UserCredential.AWARDED:
current = highest_attempt_dict.setdefault(course, course_grade)
if course_grade.percent_grade > current.percent_grade:
highest_attempt_dict[course] = course_grade
last_updated = last_updated or datetime.datetime.today()
learner_data = {
"full_name": user.get_full_name(),
"username": user.username,
"email": user.email,
}
program_data = {
"name":
program.title,
"type":
slugify(program.type),
"type_name":
program.type,
"completed":
program_credential_query.exists(),
"empty":
not highest_attempt_dict,
"last_updated":
last_updated.isoformat(),
"school":
", ".join(
program.authoring_organizations.values_list("name", flat=True)),
}
pathway_data = [{
"name": pathway[0].name,
"id": pathway[0].id,
"status": pathway[1],
"is_active": bool(pathway[0].email),
"pathway_type": pathway[0].pathway_type,
} for pathway in pathways]
# Add course-run data to the response in the order that is maintained by the Program's sorted field
course_data = []
added_courses = set()
for course_run in program_course_runs:
course = course_run.course
grade = highest_attempt_dict.get(course)
# If user hasn't taken this course yet, or doesn't have a cert, we want to show empty values
if grade is None and course not in added_courses:
course_data.append({
"name":
course.title,
"school":
", ".join(course.owners.values_list("name", flat=True)),
"attempts":
0,
"course_id":
"",
"issue_date":
"",
"percent_grade":
0.0,
"letter_grade":
"",
})
added_courses.add(course)
# If the user has taken the course, show the course_run info for the highest grade
elif grade is not None and grade.course_run == course_run:
issue_date = visible_dates[user_credential_dict[course_run.key]]
course_data.append({
"name":
course_run.title,
"school":
", ".join(course.owners.values_list("name", flat=True)),
"attempts":
num_attempts_dict[course],
"course_id":
course_run.key,
"issue_date":
issue_date.isoformat(),
"percent_grade":
float(grade.percent_grade),
"letter_grade":
grade.letter_grade or _("N/A"),
})
added_courses.add(course)
return {
"learner": learner_data,
"program": program_data,
"platform_name": platform_name,
"grades": course_data,
"pathways": pathway_data,
}