def get_data(sem_code, course_code, section_str, start_time, end_time):
file_name = course_code + '.json'
file_path = os.path.join(index_path, sem_code, 'courses', file_name)
if not os.path.exists(file_path):
return get_error_json('Course does not exist.')
try:
with open(file_path, 'r') as file:
fcntl.flock(file.fileno(), fcntl.LOCK_SH)
data = json.load(file)
data_all = data[section_str]
time_list = [x['timestamp'] for x in data_all]
if start_time == -1:
left = 0
else:
left = bisect.bisect_left(time_list, int(start_time), 0,
len(time_list))
if end_time == -1:
righ = len(data_all)
else:
righ = bisect.bisect_right(time_list, int(end_time), 0,
len(time_list))
ret = data_all[left:righ]
if int(end_time) > ret[len(ret) - 1]['timestamp']:
x = copy.copy(ret[len(ret) - 1])
x['timestamp'] = int(end_time)
ret.append(x)
return get_correct_json(ret)
except:
return get_error_json('File error.')
def semester(request):
if request.GET:
if 'semCode' in request.GET:
return retriever.get_sem_info(request.GET['semCode'])
else:
return get_error_json('Parameter(s) missing.')
else:
return get_error_json('Please use GET method to get info.')
def course(request):
if request.GET:
if 'semCode' in request.GET and \
'courseCode' in request.GET:
return retriever.get_course_section(request.GET['semCode'],
request.GET['courseCode'])
else:
return get_error_json('Parameter(s) missing.')
else:
return get_error_json('Please use GET method to get info.')
def get_sem_info(sem_code):
file_path = os.path.join(index_path, str(sem_code), 'info.json')
if not os.path.exists(file_path):
return get_error_json('Semester does not exist.')
try:
with open(file_path, 'r') as file:
fcntl.flock(file.fileno(), fcntl.LOCK_SH)
ret = json.load(file)
return get_correct_json(ret)
except:
return get_error_json('File error.')
def get_course_section(sem_code, course_code):
file_name = course_code + '.json'
file_path = os.path.join(index_path, sem_code, 'courses', file_name)
if not os.path.exists(file_path):
return get_error_json('Course does not exist.')
try:
with open(file_path, 'r') as file:
fcntl.flock(file.fileno(), fcntl.LOCK_SH)
data = json.load(file)
ret = list(data.keys())
return get_correct_json(ret)
except:
return get_error_json('File error.')
def section(request):
if request.GET:
if 'semCode' in request.GET and \
'courseCode' in request.GET and \
'section' in request.GET:
args = [
request.GET['semCode'],
request.GET['courseCode'],
request.GET['section'],
request.GET['startTime'] if 'startTime' in request.GET else -1,
request.GET['endTime'] if 'endTime' in request.GET else -1,
]
return retriever.get_data(*args)
else:
return get_error_json('Parameter(s) missing.')
else:
return get_error_json('Please use GET method to get info.')
