27 lines
606 B
Python
27 lines
606 B
Python
"""This module contains common utilities for handling models."""
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import enum
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from typing import Callable
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import sqlalchemy
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class SortOrder(enum.Enum):
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"""Possible sort orders for database queries."""
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asc = 'asc'
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ASC = 'asc'
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desc = 'desc'
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DESC = 'desc'
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@property
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def call(self) -> Callable:
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"""Returns the sqlalchemy sort function depending on the instance value."""
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if self.value == 'asc':
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return sqlalchemy.asc
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elif self.value == 'desc':
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return sqlalchemy.desc
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else:
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raise RuntimeError("Logic error.")
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