def _search_age(self, operator, value):
today = fDate.context_today(self)
value_date = fDate.subtract(today, days=value)
# convert the operator:
# book with age > value have a date < value_date
operator_map = {
'>': '<',
'>=': '<=',
'<': '>',
'<=': '>=',
}
new_op = operator_map.get(operator, operator)
return [('date_release', new_op, value_date)]
def _inverse_age(self):
today = fDate.context_today(self)
for book in self.filtered('date_release'):
d = fDate.subtract(today, days=book.age_days)
book.date_release = d