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import random
from ricky.param import Param
class MultiSelect(Param):
def __init__(self, **kwargs):
super(MultiSelect, self).__init__(**kwargs)
def value_get(self):
return super(MultiSelect, self).value_get()
def value_set(self, value):
if not any([value == i['value'] for i in self._options]) and \
value is not None:
raise ValueError
super(MultiSelect, self).value_set(value)
value = property(value_get, value_set)
def randomize(self):
weights_total = sum(map(lambda x: x["weight"], self.options()))
choice = random.randint(0, weights_total)
position = 0
for elem in self.options():
position += elem["weight"]
if position >= choice:
self.value = elem["value"]
break
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