django中关于BooleanField选项的字符串转化

# models里使用即可
from django.db.models import BooleanField as _BooleanField
class BooleanField(_BooleanField):
    def get_prep_value(self, value):
        if value in ("0", "false", "False"):
            return False
        elif value in ("1", "true", "True"):
            return True
        else:
            return super(BooleanField, self).get_prep_value(value)