cdc-placement-website-backend/CDC_Backend/APIs/adminViews.py

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import csv
from rest_framework.decorators import api_view
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from .serializers import *
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from .utils import *
@api_view(['POST'])
@isAuthorized([ADMIN])
@precheck([OPENING_ID, STUDENT_LIST])
def markStatus(request, id, email, user_type):
try:
data = request.data
# Getting all application from db for this opening
applications = PlacementApplication.objects.filter(placement_id=data[OPENING_ID])
for i in data[STUDENT_LIST]:
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application = applications.filter(student__roll_no=i[STUDENT_ID]) # Filtering student's application
if len(application) > 0:
application = application[0]
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if not application.selected:
if i[STUDENT_SELECTED] == True:
application.selected = True
else:
application.selected = False
else:
raise ValueError("Student already selected")
email = str(application.student.roll_no) + "@iitdh.ac.in" # Only allowing for IITDh emails
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subject = STUDENT_APPLICATION_STATUS_TEMPLATE_SUBJECT.format(
company_name=application.placement.company_name,
id=application.id)
data = {
"company_name": application.placement.company_name,
"designation": application.placement.designation,
"student_name": application.student.name
}
if application.selected: # Sending corresponding email to students
sendEmail(email, subject, data, STUDENT_APPLICATION_STATUS_SELECTED_TEMPLATE)
else:
sendEmail(email, subject, data, STUDENT_APPLICATION_STATUS_NOT_SELECTED_TEMPLATE)
application.chaged_by = get_object_or_404(User, id=id)
application.save()
else:
raise ValueError("Student - " + i[STUDENT_ID] + " didn't apply for this opening")
return Response({'action': "Mark Status", 'message': "Marked Status"},
status=status.HTTP_200_OK)
except ValueError as e:
return Response({'action': "Mark Status", 'message': str(e)},
status=status.HTTP_400_BAD_REQUEST)
except:
logger.warning("Mark Status: " + str(sys.exc_info()))
return Response({'action': "Mark Status", 'message': "Something went wrong"},
status=status.HTTP_400_BAD_REQUEST)
@api_view(['GET'])
@isAuthorized([ADMIN])
def getDashboard(request, id, email, user_type):
try:
placements = Placement.objects.all().order_by('-created_at')
ongoing = placements.filter(deadline_datetime__gt=timezone.now(), offer_accepted=True, email_verified=True)
previous = placements.exclude(deadline_datetime__gt=timezone.now()).filter(
offer_accepted=True, email_verified=True)
new = placements.filter(offer_accepted__isnull=True, email_verified=True)
ongoing = PlacementSerializerForAdmin(ongoing, many=True).data
previous = PlacementSerializerForAdmin(previous, many=True).data
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new = PlacementSerializerForAdmin(new, many=True).data
return Response(
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{'action': "Get Dashboard - Admin", 'message': "Data Found", "ongoing": ongoing, "previous": previous,
"new": new},
status=status.HTTP_200_OK)
except Http404:
return Response({'action': "Get Dashboard - Admin", 'message': 'Student Not Found'},
status=status.HTTP_404_NOT_FOUND)
except:
logger.warning("Get Dashboard - Admin: " + str(sys.exc_info()))
return Response({'action': "Get Dashboard - Admin", 'message': "Something went wrong"},
status=status.HTTP_400_BAD_REQUEST)
@api_view(['POST'])
@isAuthorized([ADMIN])
@precheck([OPENING_ID, DEADLINE_DATETIME])
def updateDeadline(request, id, email, user_type):
try:
data = request.data
opening = get_object_or_404(Placement, pk=data[OPENING_ID])
# Updating deadline date with correct format in datetime field
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opening.deadline_datetime = datetime.datetime.strptime(data[DEADLINE_DATETIME], '%Y-%m-%d %H:%M:%S %z')
opening.changed_by = get_object_or_404(User, id=id)
opening.save()
return Response({'action': "Update Deadline", 'message': "Deadline Updated"},
status=status.HTTP_200_OK)
except Http404:
return Response({'action': "Update Deadline", 'message': 'Opening Not Found'},
status=status.HTTP_404_NOT_FOUND)
except:
logger.warning("Update Deadline: " + str(sys.exc_info()))
return Response({'action': "Update Deadline", 'message': "Something went wrong"},
status=status.HTTP_400_BAD_REQUEST)
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@api_view(['POST'])
@isAuthorized([SUPER_ADMIN])
@precheck([OPENING_ID, OFFER_ACCEPTED])
def updateOfferAccepted(request, id, email, user_type):
try:
data = request.data
offer_accepted = data[OFFER_ACCEPTED]
opening = get_object_or_404(Placement, pk=data[OPENING_ID])
if opening.offer_accepted is None:
opening.offer_accepted = offer_accepted == "true"
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opening.changed_by = get_object_or_404(User, id=id)
opening.save()
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if opening.offer_accepted:
send_opening_notifications(opening.id)
else:
raise ValueError("Offer Status already updated")
return Response({'action': "Update Offer Accepted", 'message': "Offer Accepted Updated"},
status=status.HTTP_200_OK)
except Http404:
return Response({'action': "Update Offer Accepted", 'message': 'Opening Not Found'},
status=status.HTTP_404_NOT_FOUND)
except ValueError as e:
return Response({'action': "Update Offer Accepted", 'message': str(e)},
status=status.HTTP_400_BAD_REQUEST)
except:
logger.warning("Update Offer Accepted: " + str(sys.exc_info()))
return Response({'action': "Update Offer Accepted", 'message': "Something went wrong"},
status=status.HTTP_400_BAD_REQUEST)
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@api_view(['POST'])
@isAuthorized([ADMIN])
@precheck([OPENING_ID, EMAIL_VERIFIED])
def updateEmailVerified(request, id, email, user_type):
try:
data = request.data
opening = get_object_or_404(Placement, pk=data[OPENING_ID])
opening.email_verified = True if data[EMAIL_VERIFIED] == "true" else False
opening.changed_by = get_object_or_404(User, id=id)
opening.save()
return Response({'action': "Update Email Verified", 'message': "Email Verified Updated"},
status=status.HTTP_200_OK)
except Http404:
return Response({'action': "Update Email Verified", 'message': 'Opening Not Found'},
status=status.HTTP_404_NOT_FOUND)
except:
logger.warning("Update Email Verified: " + str(sys.exc_info()))
return Response({'action': "Update Email Verified", 'message': "Something went wrong"},
status=status.HTTP_400_BAD_REQUEST)
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@api_view(['POST'])
@isAuthorized([ADMIN])
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@precheck([OPENING_ID, FIELD])
def deleteAdditionalInfo(request, id, email, user_type):
try:
data = request.data
opening = get_object_or_404(Placement, pk=data[OPENING_ID])
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if data[FIELD] in opening.additional_info:
opening.additional_info.remove(data[FIELD])
opening.changed_by = get_object_or_404(User, id=id)
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opening.save()
return Response({'action': "Delete Additional Info", 'message': "Additional Info Deleted"},
status=status.HTTP_200_OK)
else:
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raise ValueError("Additional Info Not Found")
except Http404:
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return Response({'action': "Delete Additional Info", 'message': 'Opening Not Found'},
status=status.HTTP_404_NOT_FOUND)
except ValueError:
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return Response({'action': "Delete Additional Info", 'message': "Additional Info not found"},
status=status.HTTP_404_NOT_FOUND)
except Exception as e:
logger.warning("Delete Additional Info: " + str(e))
return Response({'action': "Delete Additional Info", 'message': "Something went wrong"},
status=status.HTTP_400_BAD_REQUEST)
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@api_view(['POST'])
@isAuthorized([ADMIN])
@precheck([OPENING_ID, FIELD])
def addAdditionalInfo(request, id, email, user_type):
try:
data = request.data
opening = get_object_or_404(Placement, pk=data[OPENING_ID])
if data[FIELD] not in opening.additional_info:
opening.additional_info.append(data[FIELD])
opening.save()
return Response({'action': "Add Additional Info", 'message': "Additional Info Added"},
status=status.HTTP_200_OK)
else:
raise ValueError("Additional Info Found")
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except Http404:
return Response({'action': "Add Additional Info", 'message': 'Opening Not Found'},
status=status.HTTP_404_NOT_FOUND)
except ValueError:
return Response({'action': "Add Additional Info", 'message': "Additional Info already found"},
status=status.HTTP_400_BAD_REQUEST)
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except Exception as e:
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logger.warning("Add Additional Info: " + str(e))
return Response({'action': "Add Additional Info", 'message': "Something went wrong"},
status=status.HTTP_400_BAD_REQUEST)
@api_view(['GET'])
@isAuthorized([ADMIN])
@precheck([OPENING_ID])
def getApplications(request, id, email, user_type):
try:
data = request.GET
opening = get_object_or_404(Placement, pk=data[OPENING_ID])
applications = PlacementApplication.objects.filter(placement=opening)
serializer = PlacementApplicationSerializerForAdmin(applications, many=True)
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return Response({'action': "Get Applications", 'message': 'Data Found', 'applications': serializer.data},
status=status.HTTP_200_OK)
except Http404:
return Response({'action': "Get Applications", 'message': 'Opening Not Found'},
status=status.HTTP_404_NOT_FOUND)
except:
logger.warning("Get Applications: " + str(sys.exc_info()))
return Response({'action': "Get Applications", 'message': "Something went wrong"},
status=status.HTTP_400_BAD_REQUEST)
@api_view(['POST'])
@isAuthorized(allowed_users=[ADMIN])
@precheck(required_data=[APPLICATION_ID, STUDENT_ID, OPENING_ID, ADDITIONAL_INFO, RESUME_FILE_NAME])
def submitApplication(request, id, email, user_type):
try:
data = request.data
student = get_object_or_404(Student, pk=data[STUDENT_ID])
opening = get_object_or_404(Placement, pk=data[OPENING_ID])
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student_user = get_object_or_404(User, id=student.id)
if data[APPLICATION_ID] == "":
application = PlacementApplication()
application.id = generateRandomString()
application.placement = opening
application.student = student
if data[RESUME_FILE_NAME] in student.resumes:
application.resume = data[RESUME_FILE_NAME]
else:
raise FileNotFoundError(RESUME_FILE_NAME + " Not Found")
additional_info = {}
for i in opening.additional_info:
if i not in data[ADDITIONAL_INFO]:
raise AttributeError(i + " not found in Additional Info")
else:
additional_info[i] = data[ADDITIONAL_INFO][i]
application.additional_info = json.dumps(additional_info)
data = {
"name": student.name,
"company_name": opening.company_name,
"application_type": "Placement",
"additional_info": dict(json.loads(application.additional_info)),
}
subject = STUDENT_APPLICATION_SUBMITTED_TEMPLATE_SUBJECT.format(company_name=opening.company_name)
application.changed_by = get_object_or_404(User, id=id)
application.save()
sendEmail(student_user.email, subject, data, STUDENT_APPLICATION_SUBMITTED_TEMPLATE)
return Response({'action': "Add Student Application", 'message': "Application added"},
status=status.HTTP_200_OK)
else:
application = get_object_or_404(PlacementApplication, id=data[APPLICATION_ID])
if application:
if data[RESUME_FILE_NAME] in student.resumes:
application.resume = data[RESUME_FILE_NAME]
else:
raise FileNotFoundError(RESUME_FILE_NAME + " Not Found")
application.resume = data[RESUME_FILE_NAME]
additional_info = {}
for i in opening.additional_info:
if i not in data[ADDITIONAL_INFO]:
raise AttributeError(i + " not found in Additional Info")
else:
additional_info[i] = data[ADDITIONAL_INFO][i]
application.additional_info = json.dumps(additional_info)
data = {
"name": student.name,
"company_name": opening.company_name,
"application_type": "Placement",
"resume": application.resume[16:],
"additional_info_items": dict(json.loads(application.additional_info)),
}
subject = STUDENT_APPLICATION_UPDATED_TEMPLATE_SUBJECT.format(company_name=opening.company_name)
application.changed_by = get_object_or_404(User, id=id)
application.save()
sendEmail(student_user.email, subject, data, STUDENT_APPLICATION_UPDATED_TEMPLATE)
return Response({'action': "Add Student Application", 'message': "Application updated"},
status=status.HTTP_200_OK)
else:
return Response({'action': "Edit Student Application", 'message': "No Application Found"},
status=status.HTTP_400_BAD_REQUEST)
except Http404 as e:
return Response({'action': "Submit Application", 'message': str(e)},
status=status.HTTP_404_NOT_FOUND)
except PermissionError as e:
return Response({'action': "Submit Application", 'message': str(e)},
status=status.HTTP_403_FORBIDDEN)
except FileNotFoundError as e:
return Response({'action': "Submit Application", 'message': str(e)},
status=status.HTTP_404_NOT_FOUND)
except:
logger.warning("Submit Application: " + str(sys.exc_info()))
return Response({'action': "Submit Application", 'message': "Something Went Wrong"},
status=status.HTTP_400_BAD_REQUEST)
@api_view(['POST'])
@isAuthorized(allowed_users=[ADMIN])
@precheck(required_data=[OPENING_ID])
def generateCSV(request, id, email, user_type):
try:
data = request.data
placement = get_object_or_404(Placement, id=data[OPENING_ID])
applications = PlacementApplication.objects.filter(placement=placement)
filename = generateRandomString()
if not os.path.isdir(STORAGE_DESTINATION_APPLICATION_CSV):
os.mkdir(STORAGE_DESTINATION_APPLICATION_CSV)
destination_path = STORAGE_DESTINATION_APPLICATION_CSV + filename + ".csv"
f = open(destination_path, 'w')
writer = csv.writer(f)
header_row = APPLICATION_CSV_COL_NAMES.copy()
header_row.extend(placement.additional_info)
writer.writerow(header_row)
for apl in applications:
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row_details = []
row_details.append(apl.applied_at)
row_details.append(apl.student.roll_no)
row_details.append(apl.student.name)
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row_details.append(str(apl.student.roll_no) + "@iitdh.ac.in")
row_details.append(apl.student.phone_number)
row_details.append(apl.student.branch)
row_details.append(apl.student.batch)
row_details.append(apl.student.cpi)
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link = LINK_TO_STORAGE_RESUME + urllib.parse.quote(apl.student.id) + "/" + urllib.parse.quote(apl.resume)
row_details.append(link)
row_details.append(apl.selected)
for i in placement.additional_info:
row_details.append(json.loads(apl.additional_info)[i])
writer.writerow(row_details)
f.close()
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file_path = LINK_TO_APPLICATIONS_CSV + urllib.parse.quote_plus(filename + ".csv")
return Response({'action': "Create csv", 'message': "CSV created", 'file': file_path},
status=status.HTTP_200_OK)
except:
logger.warning("Create csv: " + str(sys.exc_info()))
return Response({'action': "Create csv", 'message': "Something Went Wrong"},
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status=status.HTTP_400_BAD_REQUEST)
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@api_view(['POST'])
@isAuthorized(allowed_users=[ADMIN])
@precheck(required_data=[COMPANY_NAME, COMPENSATION_GROSS, OFFER_ACCEPTED, STUDENT_ID, DESIGNATION, TIER])
def addPPO(request, id, email, user_type):
try:
data = request.data
PPO = PrePlacementOffer()
PPO.company = data[COMPANY_NAME]
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PPO.compensation = int(data[COMPENSATION_GROSS])
if data[OFFER_ACCEPTED] == "true":
PPO.accepted = True
elif data[OFFER_ACCEPTED] == "false":
PPO.accepted = False
else:
PPO.accepted = None
PPO.student = get_object_or_404(Student, id=data[STUDENT_ID])
PPO.designation = data[DESIGNATION]
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PPO.tier = int(data[TIER])
if COMPENSATION_DETAILS in data:
PPO.compensation_details = data[COMPENSATION_DETAILS]
PPO.changed_by = get_object_or_404(User, id=id)
PPO.save()
return Response({'action': "Add PPO", 'message': "PPO added"},
status=status.HTTP_200_OK)
except:
logger.warning("Add PPO: " + str(sys.exc_info()))
return Response({'action': "Add PPO", 'message': "Something Went Wrong"},
status=status.HTTP_400_BAD_REQUEST)
@api_view(['POST'])
@isAuthorized(allowed_users=[ADMIN])
@precheck(required_data=[STUDENT_ID, OPENING_ID])
def getStudentApplication(request, id, email, user_type):
try:
data = request.data
student = get_object_or_404(Student, id=data[STUDENT_ID])
student_serializer = StudentSerializer(student)
student_details = {
"name": student_serializer.data['name'],
"batch": student.batch,
"branch": student.branch,
"resume_list": student_serializer.data['resume_list'],
}
# search for the application if there or not
application = PlacementApplication.objects.filter(student=student,
placement=get_object_or_404(Placement, id=data[OPENING_ID]))
if application:
serializer = PlacementApplicationSerializer(application[0])
application_info = {
"id": serializer.data['id'],
"additional_info": serializer.data['additional_info'],
"resume": serializer.data['resume_link'],
}
return Response(
{'action': "Get Student Application", 'application_found': "true", "application_info": application_info,
"student_details": student_details}, status=status.HTTP_200_OK)
else:
return Response(
{'action': "Get Student Application", 'application_found': "false", "student_details": student_details},
status=status.HTTP_404_NOT_FOUND)
except Http404:
return Response({'action': "Get Student Application", 'message': "Student not found."},
status.HTTP_404_NOT_FOUND)
except:
logger.warning("Get Student Application: " + str(sys.exc_info()))
return Response({'action': "Get Student Application", 'message': "Something Went Wrong"},
status.HTTP_400_BAD_REQUEST)
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@api_view(['GET'])
@isAuthorized(allowed_users=[ADMIN])
def getStats(request, id, email, user_type):
try:
stats = []
placement_ids = {}
tier_count = {
"CSE": {
"1":0,
"2":0,
"3":0,
"4":0,
"5":0,
"6":0,
"7":0,
"psu":0,
},
"EE": {
"1":0,
"2":0,
"3":0,
"4":0,
"5":0,
"6":0,
"7":0,
"psu":0,
},
"MMAE": {
"1":0,
"2":0,
"3":0,
"4":0,
"5":0,
"6":0,
"7":0,
"psu":0,
},
"Total": {
"1":0,
"2":0,
"3":0,
"4":0,
"5":0,
"6":0,
"7":0,
"psu":0,
},
}
number_of_students_placed = {
"CSE": 0,
"EE": 0,
"MMAE": 0,
"Total": 0,
}
number_of_students_with_multiple_offers = 0
number_of_students_with_no_offers = {
"CSE": 0,
"EE": 0,
"MMAE": 0,
"Total": 0,
}
max_CTC = {
"CSE": 0,
"EE": 0,
"MMAE": 0
}
average_CTC = {
"CSE": 0,
"EE": 0,
"MMAE": 0
}
count = {
"CSE": 0,
"EE": 0,
"MMAE": 0
}
students = Student.objects.all().order_by("roll_no")
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for student in students.iterator():
applications = PlacementApplication.objects.filter(student=student, selected=True)
ppos = PrePlacementOffer.objects.filter(student=student, accepted=True)
first_offer_data = None
second_offer_data = None
# get the first and second offer
offers = []
offers.extend(applications)
offers.extend(ppos)
if len(offers) == 0:
number_of_students_with_no_offers[student.branch] += 1
number_of_students_with_no_offers["Total"] += 1
else:
number_of_students_placed[student.branch] += 1
number_of_students_placed["Total"] += 1
if len(offers) > 1:
number_of_students_with_multiple_offers += 1
for offer in offers:
if type(offer) == PrePlacementOffer:
if first_offer_data is None:
first_offer_data = {
"id": offer.id,
"company": offer.company,
"compensation": offer.compensation,
"tier": offer.tier,
"type": "PPO",
}
elif second_offer_data is None:
second_offer_data = {
"id": offer.id,
"company": offer.company,
"compensation": offer.compensation,
"tier": offer.tier,
"type": "PPO",
}
elif type(offer) == PlacementApplication:
if first_offer_data is None:
first_offer_data = {
"id": offer.placement.id,
"company": offer.placement.company_name,
"compensation": offer.placement.compensation_CTC,
"tier": offer.placement.tier,
"type": "Placement",
}
elif second_offer_data is None:
second_offer_data = {
"id": offer.placement.id,
"company": offer.placement.company_name,
"compensation": offer.placement.compensation_CTC,
"tier": offer.placement.tier,
"type": "Placement",
}
data = {
"id": student.id,
"name": student.name,
"roll_no": student.roll_no,
"batch": student.batch,
"branch": student.branch,
"cpi": student.cpi,
"first_offer": first_offer_data['company'] if first_offer_data is not None else None,
"first_offer_tier": first_offer_data['tier'] if first_offer_data is not None else None,
"first_offer_compensation": first_offer_data['compensation'] if first_offer_data is not None else None,
"second_offer": second_offer_data['company'] if second_offer_data is not None else None,
"second_offer_tier": second_offer_data['tier'] if second_offer_data is not None else None,
"second_offer_compensation": second_offer_data['compensation'] if second_offer_data is not None else None,
}
if first_offer_data is not None:
tier_count[student.branch][first_offer_data['tier']] += 1
tier_count['Total'][first_offer_data['tier']] += 1
max_CTC[student.branch] = max(max_CTC[student.branch], first_offer_data['compensation'])
average_CTC[student.branch] += first_offer_data['compensation']
count[student.branch] += 1
if first_offer_data['type'] == "Placement":
placement_ids[first_offer_data['company']] = first_offer_data['id']
if second_offer_data is not None:
tier_count[student.branch][second_offer_data['tier']] += 1
tier_count['Total'][second_offer_data['tier']] += 1
max_CTC[student.branch] = max(max_CTC[student.branch], second_offer_data['compensation'])
average_CTC[student.branch] += second_offer_data['compensation']
count[student.branch] += 1
if second_offer_data['type'] == "Placement":
placement_ids[second_offer_data['company']] = second_offer_data['id']
stats.append(data)
for branch in average_CTC:
if count[branch] > 0:
average_CTC[branch] /= count[branch]
# round off to 2 decimal places
average_CTC[branch] = round(average_CTC[branch], 2)
else:
average_CTC[branch] = 0
return Response({'action': "Get Stats", 'message': "Stats fetched", 'stats': stats, 'placement_ids': placement_ids,
"tier_count": {br: tier_count[br].values() for br in tier_count},
"number_of_students_placed": number_of_students_placed,
"number_of_students_with_multiple_offers": number_of_students_with_multiple_offers,
"number_of_students_with_no_offers": number_of_students_with_no_offers,
"max_CTC": max_CTC,
"average_CTC": average_CTC,
},
status=status.HTTP_200_OK)
except:
logger.warning("Get Stats: " + str(sys.exc_info()))
print(sys.exc_info())
return Response({'action': "Get Stats", 'message': "Something Went Wrong"},
status=status.HTTP_400_BAD_REQUEST)