def convert_attribute(value: ResultVariable):
try:
rawvalue = value.get_value()
except OptionalValueException:
return {"nones": [0]}
if isinstance(rawvalue, Unknown):
return {"unknowns": [0]}
if isinstance(rawvalue, NoneValue):
return {"nones": [0]}
if not isinstance(rawvalue, list):
rawvalue = [rawvalue]
return {"values": rawvalue}
else:
unknowns = []
offset = 0
for i in range(0, len(rawvalue)):
value = rawvalue[i - offset]
if isinstance(value, Unknown):
unknowns.append(i)
del rawvalue[i - offset]
offset += 1
if len(unknowns) > 0:
return {"values": rawvalue, "unknowns": unknowns}
else:
return {"values": rawvalue}
def convert_relation(value: ResultVariable):
if value.is_ready() and value.value is not None:
rawvalue = value.get_value()
else:
# no value present
return {"values": []}
if not isinstance(rawvalue, list):
rawvalue = [rawvalue]
return {"values": [convert(v) for v in rawvalue]}