22 lines
506 B
Python
22 lines
506 B
Python
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from typing import Optional
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from cpl_query.extension.iterable_abc import IterableABC
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def single_query(_list: IterableABC) -> any:
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if len(_list) > 1:
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raise Exception('Found more than one element')
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elif len(_list) == 0:
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raise Exception('Found no element')
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return _list[0]
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def single_or_default_query(_list: IterableABC) -> Optional[any]:
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if len(_list) > 1:
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raise Exception('Index out of range')
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elif len(_list) == 0:
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return None
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return _list[0]
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