Luís Murta
c6a13cc83a
through the use of tags. Instead of failing when categorizing a transaction which already has a category, add the new category as a tag for that transaction. Issue #2
39 lines
1.2 KiB
Python
39 lines
1.2 KiB
Python
from copy import deepcopy
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from typing import Iterable, Sequence
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from pfbudget.db.model import (
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CategoryRule,
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CategorySelector,
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Transaction,
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TransactionCategory,
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TransactionTag,
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)
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from .transform import Transformer
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class Categorizer(Transformer):
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def __init__(self, rules: Iterable[CategoryRule]):
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self.rules = rules
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def transform(self, transactions: Sequence[Transaction]) -> Sequence[Transaction]:
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result = deepcopy(transactions)
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self.transform_inplace(result)
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return result
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def transform_inplace(self, transactions: Sequence[Transaction]) -> None:
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for rule in self.rules:
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for transaction in transactions:
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if not rule.matches(transaction):
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continue
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if not transaction.category:
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transaction.category = TransactionCategory(
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rule.name, CategorySelector.rules
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)
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else:
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if not transaction.tags:
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transaction.tags = {TransactionTag(rule.name)}
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else:
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transaction.tags.add(TransactionTag(rule.name))
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