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bchen-reimbursement

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Brandan Chen 2022-12-12 20:14:37 -05:00
parent 5fc8b822a1
commit 40fc02bb6b
1 changed files with 26 additions and 9 deletions
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31
ihatemoney/models.py
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@ -109,28 +109,44 @@ class Project(db.Model):
- dict mapping each member to its balance
- dict mapping each member to how much he/she should pay others
- dict mapping each member to how much he/she she should pay others
(i.e. how much he/she benefited from bills)
- dict mapping each member to how much he/she should be paid by
others (i.e. how much he/she has paid for bills)
balance spent paid
"""
balances, should_pay, should_receive = (defaultdict(int) for time in (1, 2, 3))
# for bill in self.get_bills_unordered().all():
# should_receive[bill.payer.id] += bill.converted_amount
# total_weight = sum(ower.weight for ower in bill.owers)
# for ower in bill.owers:
# should_pay[ower.id] += (
# ower.weight * bill.converted_amount / total_weight
# )
for bill in self.get_bills_unordered().all():
should_receive[bill.payer.id] += bill.converted_amount
total_weight = sum(ower.weight for ower in bill.owers)
if bill.bill_type == "Expense":
should_receive[bill.payer.id] += bill.converted_amount
for ower in bill.owers:
should_pay[ower.id] += (
ower.weight * bill.converted_amount / total_weight
)
should_pay[ower.id] += (ower.weight * bill.converted_amount / total_weight)
if bill.bill_type == "Reimbursement":
should_receive[bill.payer.id] += bill.converted_amount
for ower in bill.owers:
should_receive[ower.id] -= bill.converted_amount
for person in self.members:
balance = should_receive[person.id] - should_pay[person.id]
balances[person.id] = balance
return balances, should_pay, should_receive
return (
balances,
should_pay,
should_receive,
)
@property
def balance(self):
@ -163,6 +179,7 @@ class Project(db.Model):
"""
monthly = defaultdict(lambda: defaultdict(float))
for bill in self.get_bills_unordered().all():
if bill.bill_type == "Expense":
monthly[bill.date.year][bill.date.month] += bill.converted_amount
return monthly