def retrieveTransactions(user_id, days):
# Retrieve wallet object for specific user
if not Admin.getByUserID(user_id):
wallet = Wallet.getByUserID(user_id)
else:
wallet = Wallet.getByUserID(-1)
# Retrieve time now
now = datetime.now()
# Retrieve the transactions
transactions = Transaction.objects.filter(wallet = wallet, \
time__lte = now, \
time__gte = now-dt.timedelta(days=days))
return transactions
def tutorTransferMoney(request):
# Initialize message variables
errno = -1
msg = ''
data = {}
# Retrieving tutor information
try:
# Try retrieving the amount to be added to the wallet
try:
request_json = json.loads(request.body)
amount = request_json['amount']
except:
raise Exception(1, 'Bad request')
if not request.user.is_authenticated():
# Raise bad request response by user not logged in
raise Exception(2, 'User not logged in')
# Try retrieving tutor user from logged in user
tutor = Tutor.getByUsername(request.user.username)
if tutor == None:
# Raise bad request response by unknown user type
raise Exception(3, 'Not a tutor')
# Check if the wallet has enough amount for transfer
old_balance = Wallet.getByUserID(tutor.user_profile.user.id).wallet_balance
if old_balance - amount < 0:
raise Exception(4, 'Not enough balance')
# Increment the amount
new_balance = Wallet.decrementBalance(tutor.user_profile.user.id, amount)
# Create Transaction record for value transferred
Transaction.createTransaction(tutor.user_profile.user.id, \
-amount, \
'Value transferred by tutor ' +\
str(tutor) + "("+tutor.username+")")
# Filling response body
errno = 0
msg = "Request succeeded"
data = {
"new_balance": new_balance
}
except Exception as e:
# Catch error responses raised
try:
errno, msg = e.args
except:
raise e
# Generate response message
message = {
"errno": errno,
"msg": msg,
"data": data
}
return JsonResponse(message)
def createTransaction(user_id, amount, detail):
# Retrieve wallet object for specific user
wallet = Wallet.getByUserID(user_id)
new_transaction = Transaction(amount = amount, \
time = datetime.now(), \
detail = detail, \
wallet =wallet)
new_transaction.save()
return new_transaction
def getBalance(request):
# Initialize message variables
errno = -1
msg = ''
data = {}
# Retrieving tutor information
try:
if not request.user.is_authenticated():
# Raise bad request response by user not logged in
raise Exception(2, 'User not logged in')
# Retrieve wallet from logged in user
if not Admin.getByUsername(request.user.username):
wallet = Wallet.getByUserID(request.user.id)
else:
wallet = Wallet.getByUserID(-1)
if wallet == None:
# Raise bad request response by wallet not found
raise Exception(3, 'Wallet not found')
balance = wallet.wallet_balance
# Filling response body
errno = 0
msg = "Request succeeded"
data = {
"balance": balance
}
except Exception as e:
# Catch error responses raised
try:
errno, msg = e.args
except:
raise e
# Generate response message
message = {
"errno": errno,
"msg": msg,
"data": data
}
return JsonResponse(message)