ComfyUI/app/database/helpers/projection.py

65 lines
2.2 KiB
Python

from decimal import Decimal
def is_scalar(v):
if v is None:
return True
if isinstance(v, bool):
return True
if isinstance(v, (int, float, Decimal, str)):
return True
return False
def project_kv(key: str, value):
"""
Turn a metadata key/value into typed projection rows.
Returns list[dict] with keys:
key, ordinal, and one of val_str / val_num / val_bool / val_json (others None)
"""
rows: list[dict] = []
def _null_row(ordinal: int) -> dict:
return {
"key": key, "ordinal": ordinal,
"val_str": None, "val_num": None, "val_bool": None, "val_json": None
}
if value is None:
rows.append(_null_row(0))
return rows
if is_scalar(value):
if isinstance(value, bool):
rows.append({"key": key, "ordinal": 0, "val_bool": bool(value)})
elif isinstance(value, (int, float, Decimal)):
num = value if isinstance(value, Decimal) else Decimal(str(value))
rows.append({"key": key, "ordinal": 0, "val_num": num})
elif isinstance(value, str):
rows.append({"key": key, "ordinal": 0, "val_str": value})
else:
rows.append({"key": key, "ordinal": 0, "val_json": value})
return rows
if isinstance(value, list):
if all(is_scalar(x) for x in value):
for i, x in enumerate(value):
if x is None:
rows.append(_null_row(i))
elif isinstance(x, bool):
rows.append({"key": key, "ordinal": i, "val_bool": bool(x)})
elif isinstance(x, (int, float, Decimal)):
num = x if isinstance(x, Decimal) else Decimal(str(x))
rows.append({"key": key, "ordinal": i, "val_num": num})
elif isinstance(x, str):
rows.append({"key": key, "ordinal": i, "val_str": x})
else:
rows.append({"key": key, "ordinal": i, "val_json": x})
return rows
for i, x in enumerate(value):
rows.append({"key": key, "ordinal": i, "val_json": x})
return rows
rows.append({"key": key, "ordinal": 0, "val_json": value})
return rows