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# -*- coding: utf-8 -*-
# © 2015-2016 Yannick Vaucher (Camptocamp SA)
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
import logging
from datetime import datetime
from dateutil.relativedelta import relativedelta
from openerp import api, exceptions, fields, models
from openerp.tools.translate import _
_logger = logging.getLogger(__name__)
class RecordLifespan(models.Model):
""" Configure records lifespans per model
After the lifespan is expired (compared to the `write_date` of the
records), the records are deactivated.
"""
_name = 'record.lifespan'
_order = 'model'
model_id = fields.Many2one(
'ir.model',
string='Model',
required=True,
domain=[('has_an_active_field', '=', True)],
)
model = fields.Char(
related='model_id.model',
string='Model Name',
store=True,
)
months = fields.Integer(
required=True,
help="Number of month after which the records will be set to inactive "
"based on their write date"
)
_sql_constraints = [
('months_gt_0', 'check (months > 0)',
"Months must be a value greater than 0"),
]
@api.model
def _scheduler_archive_records(self):
lifespans = self.search([])
_logger.info('Records archiver starts archiving records')
for lifespan in lifespans:
try:
lifespan.archive_records()
except exceptions.UserError as e:
_logger.error("Archiver error:\n%s", e[1])
_logger.info('Rusty Records now rest in peace')
return True
@api.multi
def _archive_domain(self, expiration_date):
""" Returns the domain used to find the records to archive.
Can be inherited to change the archived records for a model.
"""
model = self.env[self.model_id.model]
domain = [('write_date', '<', expiration_date)]
if 'state' in model._columns:
domain += [('state', 'in', ('done', 'cancel'))]
return domain
@api.multi
def _archive_lifespan_records(self):
""" Archive the records for a lifespan, so for a model.
Can be inherited to customize the archive strategy.
The default strategy is to change the field ``active`` to False
on the records having a ``write_date`` older than the lifespan.
Only done and canceled records will be deactivated.
"""
self.ensure_one()
today = datetime.today()
model_name = self.model_id.model
model = self.env[model_name]
if not isinstance(model, models.Model):
raise exceptions.UserError(
_('Model %s not found') % model_name)
if 'active' not in model._columns:
raise exceptions.UserError(
_('Model %s has no active field') % model_name)
delta = relativedelta(months=self.months)
expiration_date = fields.Datetime.to_string(today - delta)
domain = self._archive_domain(expiration_date)
recs = model.search(domain)
if not recs:
return
# use a SQL query to bypass tracking always messages on write for
# object inheriting mail.thread
query = ("UPDATE %s SET active = FALSE WHERE id in %%s"
) % model._table
self.env.cr.execute(query, (tuple(recs.ids),))
recs.invalidate_cache()
_logger.info(
'Archived %s %s older than %s',
len(recs.ids), model_name, expiration_date)
@api.multi
def archive_records(self):
""" Call the archiver for several record lifespans """
for lifespan in self:
lifespan._archive_lifespan_records()
return True