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graingert/gist:2368857

Created April 12, 2012 16:27
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gistfile1.py
class RangeField(m.IntegerField):
def __init__(self, min_value, max_value, step=None, *args, **kwargs):
validators = kwargs.setdefault("validators",[])
validators += [MinValueValidator(min_value), MaxValueValidator(max_value)]
if step:
validators.append(StepValidator(min_value, step))
super(RangeField, self).__init__(*args, **kwargs)
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