def __init__(self, prefix, pattern):
        if not self.pattern_regex.match(pattern):
            raise ValueError('Invalid intersection matrix pattern "%s".' % pattern)
        super(PostGISRelate, self).__init__(prefix, 'Relate')
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/Django-1.6.10/django/contrib/gis/db/backends/postgis/operations.py/PostGISRelate.__init__/original