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Fix cast for enums #22

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Merged
ffaraone merged 1 commit into from
Apr 8, 2025
Merged

Fix cast for enums #22

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24 changes: 14 additions & 10 deletions src/requela/builders/sqlalchemy.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
from collections.abc import Callable, Sequence
from datetime import date, datetime
from decimal import Decimal
from enum import Enum
from typing import Any

from sqlalchemy import (
Expand Down Expand Up @@ -174,24 +175,27 @@ def apply_any(
return exists_clause

def cast_value(self, column: ColumnElement, value: Any) -> Any: # pragma: no cover
if isinstance(value, column.type.python_type):
return value
try:
if column.type.python_type is str and not isinstance(value, str):
if column.type.python_type is str:
return str(value)
if column.type.python_type is bool and not isinstance(value, bool):
if column.type.python_type is bool:
return bool(value)
if column.type.python_type is int and not isinstance(value, int):
if column.type.python_type is int:
return int(value)
if column.type.python_type is float and not isinstance(value, float):
if column.type.python_type is float:
return float(value)
if column.type.python_type is Decimal and not isinstance(value, Decimal):
if column.type.python_type is Decimal:
return Decimal(value)
if column.type.python_type is datetime and not isinstance(value, datetime):
if column.type.python_type is datetime:
return datetime.fromisoformat(value)
if column.type.python_type is date and not isinstance(value, date):
if column.type.python_type is date:
return date.fromisoformat(value)
return value
except Exception:
raise ValueError(f"Cannot cast value {value} to {column.type.python_type}")
if issubclass(column.type.python_type, Enum):
return column.type.python_type(value)
except Exception as e:
raise ValueError(f"Cannot cast value {value} to {column.type.python_type}: {e}") from e

def _adapt_condition(self, condition, alias):
if isinstance(condition, BooleanClauseList):
Expand Down
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