INNER CODE UNIT · Python

_group_operation

mongomock/mongomock · mongomock/aggregate.py:190

def _group_operation(values, operator):
    values_list = [v for v in values if v is not None]
    if not values_list:
        return None
    return operator(values_list)


def _sum_operation(values):
    values_list = []
    if decimal_support:
        for v in values:
            if isinstance(v, numbers.Number):
                values_list.append(v)
            elif isinstance(v, decimal128.Decimal128):
                values_list.append(v.to_decimal())
    else:
        values_list = [v for v in values if isinstance(v, numbers.Number)]
    sum_value = sum(values_list)

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