def _compile_filters(filters):
    """
    >>> _compile_filters(['int'])
    ['int(value)']
    >>> _compile_filters(['default(0)'])
    ['default(value, 0)']
    >>> _compile_filters(None)
    []
    """
    results = []
    if filters is not None:
        for f in filters:
            if '(' in f:
                f = f.replace('(', '(value, ', 1)
            else:
                f = f + '(value)'
            results.append(f)
    return results
