def get_course(code):
"""Returns all information for course identified by course code. Search is
case sensitive
"""
with pool.get_connection() as sc:
# Make sure there is a course with the given code
triples = sc.query(Triple(code, "rdf:type", "Course"))
if not triples:
msg = 'There is no course with code "{0}".'.format(code)
raise Exception(msg)
course = fetch_rdf_graph(code, dont_follow=["department"])
course["code"] = code
# Fetch department and faculty codes separately, as the structure
# constructed by fetch_rdf_graph becomes sanely does not
# contain the codes. These just go and assume that every course
# has both faculty and department. With Noppa scraping this
# is necessarily true.
triples = sc.query(Triple(course["code"], "department", None))
course["department"] = str(triples[0].object)
triples = sc.query(Triple(course["department"], "faculty", None))
course["faculty"] = str(triples[0].object)
return course
def get(user_id):
"""Get the information of the user specified by user_id.
Arguments:
user_id -- User's user id
Exceptions:
UserDoesNotExist -- User with specified user_id does not exist.
"""
user_uri = '{0}/ID#{1}'.format(PEOPLE_BASE_URI, user_id)
user = fetch_rdf_graph(user_uri, dont_follow=[
'{0}#Friend'.format(PEOPLE_BASE_URI)])
if not user:
raise UserDoesNotExist(user_id)
user['user_id'] = user_id
return user
def get_completed_courses(user_id):
"""Returns the completed courses for the given user sorted by most recent
completion first.
"""
user_uri = '{0}/ID#{1}'.format(PEOPLE_BASE_URI, user_id)
with pool.get_connection() as sc:
all_completed_course_uris = set(triple.subject
for triple in sc.query(
Triple(None, 'rdf:type', 'CompletedCourse')))
all_user_uris = set(triple.subject
for triple in sc.query(Triple(None, 'user', uri(user_uri))))
completed_course_uris = all_completed_course_uris & all_user_uris
completed_courses = []
for subject in completed_course_uris:
completed_course = fetch_rdf_graph(
subject, dont_follow=['user'])
del completed_course['user']
completed_courses.append(completed_course)
return sorted(completed_courses, key=lambda item: item['date'],
reverse=True)
def test_fetch_rdf_graph(self):
expected = {
'address': None,
'avatar': {
'link': {
'href': '/people/dn3FNGIomr3OicaaWPEYjL/@avatar',
'rel': 'self'
},
'status': 'not_set'
},
'birthdate': None,
'description': None,
'gender': None,
'irc_nick': None,
'is_association': None,
'msn_nick': None,
'name': {
'family_name': 'Jannu15',
'given_name': 'Testi',
'unstructured': 'Testi Jannu15'
},
'phone_number': None,
'role': None,
'status': {
'changed': None,
'message': None
},
'updated_at': '2009-08-14T15:04:46Z',
'username': '******',
'website': None
}
subject = 'http://cos.alpha.sizl.org/people/ID#dn3FNGIomr3OicaaWPEYjL'
actual = utils.fetch_rdf_graph(subject)
self.assertEqual(expected, actual)