def __init__(self, pattern):
        if not self.pattern_regex.match(pattern):
            raise ValueError('Invalid intersection matrix pattern "%s".' % pattern)
        super(SpatiaLiteRelate, self).__init__('Relate')

# Valid distance types and substitutions
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.4/django/contrib/gis/db/backends/spatialite/operations.py/SpatiaLiteRelate.__init__/original