sa_utils.py 文件源码

def op(operation, column):
    if operation == 'in':
        def comparator(column, v):
            return column.in_(v)
    elif operation == 'like':
        def comparator(column, v):
            return column.like(v + '%')
    elif operation == 'eq':
        comparator = _operator.eq
    elif operation == 'ne':
        comparator = _operator.ne
    elif operation == 'le':
        comparator = _operator.le
    elif operation == 'lt':
        comparator = _operator.lt
    elif operation == 'ge':
        comparator = _operator.ge
    elif operation == 'gt':
        comparator = _operator.gt
    else:
        raise ValueError('Operation {} not supported'.format(operation))
    return comparator


# TODO: fix comparators, keys should be something better