42 lines
931 B
Python
42 lines
931 B
Python
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class InsufficientCreditError(Exception):
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"""Raised when trying to subtract more than available"""
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pass
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def upgrade(amount, rower):
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if rower.eurocredits > amount:
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return rower.eurocredits
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else:
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rower.eurocredits = amount
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rower.save()
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return rower.eurocredits
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return rower.eurocredits
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def withdraw(amount, rower):
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if rower.eurocredits < amount:
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rower.eurocredits = 0
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rower.save()
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raise InsufficientCreditError
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else:
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rower.eurocredits = rower.eurocredits - amount
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rower.save()
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return rower.eurocredits
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return rower.eurocredits
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def discount(amount,rower):
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if amount < rower.eurocredits:
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return amount
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else:
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return rower.eurocredits
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return 0
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def discounted(amount,rower):
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if amount > rower.eurocredits:
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return amount-rower.eurocredits
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else:
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return 0
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return 0
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