def parse_credits(string):
"""Given a numerical string, this will return a Money instance in the
local currency.
"""
currency_code = configdb['currency_code']
money = currency.parse_credits(string, currency.CURRENCIES[currency_code])
return money
def parse_subscriber_cost(self, string, currency=DEFAULT_CURRENCY):
"""Parses input cost strings for the network prices page and performs
value checks. Outputs a Money instance. The cost must be non-negative
and the integer reperesentation must fit in a 32 bit signed integer.
Arguments:
string: numerical string with support for thousands commas and
decimal places
currency: the desired output currency. Default currency
controlled by common/currency extension
Returns:
A Money instance
Raises:
ValueError: if the string doesn't parse or is out of bounds.
"""
money = parse_credits(string, currency)
if money.amount_raw < 0:
raise ValueError("Cost must be non-negative")
# This is the max value that is allowed by the DB
if money.amount_raw > 2147483647:
raise ValueError("Value is too large")
return money
def post(self, request, imsi=None):
"""Operators can use this API to add credit to a subscriber.
These additions become PendingCreditUpdates and celery will try to
"apply" then by sending the info to the corresponding BTS. The
operator may also delete PendingCreditUpdates, effectively canceling
them.
"""
user_profile = UserProfile.objects.get(user=request.user)
network = user_profile.network
# In all cases we'll redirect back to the adjust-credit page.
sub = Subscriber.objects.get(imsi=imsi, network=network)
params = {
'imsi': sub.imsi
}
adjust_credit_redirect = redirect(
urlresolvers.reverse('subscriber-adjust-credit', kwargs=params))
# Validate the input.
if 'amount' not in request.POST:
return HttpResponseBadRequest()
error_text = 'Error: credit value must be between -10M and 10M.'
try:
currency = network.subscriber_currency
amount = parse_credits(request.POST['amount'],
CURRENCIES[currency]).amount_raw
if abs(amount) > 2147483647:
raise ValueError(error_text)
except ValueError:
messages.error(request, error_text)
return adjust_credit_redirect
# Validation suceeded, create a PCU and start the update credit task.
msgid = str(uuid.uuid4())
credit_update = PendingCreditUpdate(subscriber=sub, uuid=msgid,
amount=amount)
credit_update.save()
tasks.update_credit.delay(sub.imsi, msgid)
return adjust_credit_redirect
def post(self, request):
"""Operators can use this API to add denomination to a network.
These denomination bracket will be used to recharge subscriber,
set balance validity and status
"""
user_profile = models.UserProfile.objects.get(user=request.user)
network = user_profile.network
try:
currency = network.subscriber_currency
start_amount_raw = request.POST.get('start_amount')
start_amount = parse_credits(start_amount_raw,
CURRENCIES[currency]).amount_raw
end_amount_raw = request.POST.get('end_amount')
end_amount = parse_credits(end_amount_raw,
CURRENCIES[currency]).amount_raw
validity_days = int(request.POST.get('validity_days')) or 0
dnm_id = int(request.POST.get('dnm_id')) or 0
if validity_days > settings.ENDAGA['MAX_VALIDITY_DAYS']:
message = ('Validity days value exceeds maximum permissible '
'limit (%s Days).' %
(settings.ENDAGA['MAX_VALIDITY_DAYS']))
messages.error(request,
message,
extra_tags='alert alert-danger')
return redirect(urlresolvers.reverse('network-denominations'))
elif start_amount <= 0 or end_amount <= 0:
messages.error(request,
'Enter value >0 for start/end amount.',
extra_tags='alert alert-danger')
return redirect(urlresolvers.reverse('network-denominations'))
elif validity_days <= 0:
messages.error(request,
'Validity can not be 0 day.',
extra_tags='alert alert-danger')
return redirect(urlresolvers.reverse('network-denominations'))
elif end_amount <= start_amount:
messages.error(
request,
'End amount should be greater than start amount.',
extra_tags='alert alert-danger')
return redirect(urlresolvers.reverse('network-denominations'))
user_profile = models.UserProfile.objects.get(user=request.user)
with transaction.atomic():
if dnm_id > 0:
try:
denom = models.NetworkDenomination.objects.get(
id=dnm_id)
# Check for existing denomination range exist.
denom_exists = \
models.NetworkDenomination.objects.filter(
end_amount__gte=start_amount,
start_amount__lte=end_amount,
network=user_profile.network).exclude(
id=dnm_id).count()
if denom_exists:
messages.error(
request,
'Denomination range already exists.',
extra_tags='alert alert-danger')
return redirect(
urlresolvers.reverse('network-denominations'))
denom.network = user_profile.network
denom.start_amount = start_amount
denom.end_amount = end_amount
denom.validity_days = validity_days
denom.save()
messages.success(
request,
'Denomination is updated successfully.',
extra_tags='alert alert-success')
except models.NetworkDenomination.DoesNotExist:
messages.error(request,
'Invalid denomination ID.',
extra_tags='alert alert-danger')
return redirect(
urlresolvers.reverse('network-denominations'))
else:
# Check for existing denomination range exist.
denom_exists = models.NetworkDenomination.objects.filter(
end_amount__gte=start_amount,
start_amount__lte=end_amount,
network=user_profile.network).count()
if denom_exists:
messages.error(request,
'Denomination range already exists.',
extra_tags='alert alert-danger')
return redirect(
urlresolvers.reverse('network-denominations'))
# Create new denomination for selected network
denom = models.NetworkDenomination(
network=user_profile.network)
denom.network = user_profile.network
denom.start_amount = start_amount
denom.end_amount = end_amount
denom.validity_days = validity_days
denom.save()
messages.success(request,
'Denomination is created successfully.',
extra_tags='alert alert-success')
except Exception:
messages.error(request,
'Invalid validity value. Enter greater than '
'0 digit value',
extra_tags='alert alert-danger')
return redirect(urlresolvers.reverse('network-denominations'))
