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muk_base/muk_autovacuum/models/rules.py

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###################################################################################
#
# Copyright (c) 2017-2019 MuK IT GmbH.
#
# This file is part of MuK Autovacuum
# (see https://mukit.at).
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
###################################################################################
import time
import base64
import logging
import datetime
import dateutil
from pytz import timezone
from odoo import _
from odoo import models, api, fields
from odoo.exceptions import ValidationError, Warning
from odoo.tools import DEFAULT_SERVER_DATE_FORMAT
from odoo.tools import DEFAULT_SERVER_DATETIME_FORMAT
from odoo.tools.safe_eval import safe_eval, test_python_expr
_logger = logging.getLogger(__name__)
class AutoVacuumRules(models.Model):
_name = 'muk_autovacuum.rules'
_description = "Auto Vacuum Rules"
_order = "sequence asc"
#----------------------------------------------------------
# Defaults
#----------------------------------------------------------
def _default_sequence(self):
record = self.sudo().search([], order='sequence desc', limit=1)
if record.exists():
return record.sequence + 1
else:
return 1
#----------------------------------------------------------
# Database
#----------------------------------------------------------
name = fields.Char(
string='Name',
required=True)
active = fields.Boolean(
string='Active',
default=True)
state = fields.Selection(
selection=[
('time', 'Time Based'),
('size', 'Size Based'),
('domain', 'Domain Based'),
('code', 'Code Based')],
string='Rule Type',
default='time',
required=True)
sequence = fields.Integer(
string='Sequence',
default=lambda self: self._default_sequence(),
required=True)
model = fields.Many2one(
comodel_name='ir.model',
string="Model",
required=True,
ondelete='cascade',
help="Model on which the rule is applied.")
model_name = fields.Char(
related='model.model',
string="Model Name",
readonly=True,
store=True)
time_field = fields.Many2one(
comodel_name='ir.model.fields',
domain="[('model_id', '=', model), ('ttype', '=', 'datetime')]",
string='Time Field',
ondelete='cascade',
states={
'time': [('required', True)],
'size': [('invisible', True)],
'domain': [('invisible', True)],
'code': [('invisible', True)]})
time_type = fields.Selection(
selection=[
('minutes', 'Minutes'),
('hours', 'Hours'),
('days', 'Days'),
('weeks', 'Weeks'),
('months', 'Months'),
('years', 'Years')],
string='Time Unit',
default='months',
states={
'time': [('required', True)],
'size': [('invisible', True)],
'domain': [('invisible', True)],
'code': [('invisible', True)]})
time = fields.Integer(
string='Time',
default=1,
states={
'time': [('required', True)],
'size': [('invisible', True)],
'domain': [('invisible', True)],
'code': [('invisible', True)]},
help="Delete older data than x.")
size_type = fields.Selection(
selection=[
('fixed', 'Fixed Value'),
('parameter', 'System Parameter')],
string='Size Type',
default='fixed',
states={
'time': [('invisible', True)],
'size': [('required', True)],
'domain': [('invisible', True)],
'code': [('invisible', True)]})
size_parameter = fields.Many2one(
comodel_name='ir.config_parameter',
string='System Parameter',
ondelete='cascade',
states={
'time': [('invisible', True)],
'size': [('required', True)],
'domain': [('invisible', True)],
'code': [('invisible', True)]})
size_parameter_value = fields.Integer(
compute='_compute_size_parameter_value',
string='Size Value',
states={
'time': [('invisible', True)],
'size': [('readonly', True)],
'domain': [('invisible', True)],
'code': [('invisible', True)]},
help="Delete records with am index greater than x.")
size_order = fields.Char(
string='Size Order',
default='create_date desc',
states={
'time': [('invisible', True)],
'size': [('required', True)],
'domain': [('invisible', True)],
'code': [('invisible', True)]},
help="Order by which the index is defined.")
size = fields.Integer(
string='Size',
default=200,
states={
'time': [('invisible', True)],
'size': [('required', True)],
'domain': [('invisible', True)],
'code': [('invisible', True)]},
help="Delete records with am index greater than x.")
domain = fields.Char(
string='Domain',
states={
'time': [('invisible', True)],
'size': [('invisible', True)],
'domain': [('required', True)],
'code': [('invisible', True)]},
help="Delete all records which match the domain.")
code = fields.Text(
string='Code',
states={
'time': [('invisible', True)],
'size': [('invisible', True)],
'domain': [('invisible', True)] ,
'code': [('required', True)]},
default="# Enter Python code here. Help about Python expression is available in the help tab of this document.",
help="Code which will be executed during the clean up.")
protect_starred = fields.Boolean(
string='Protect Starred',
default=True,
states={
'time': [('invisible', False)],
'size': [('invisible', True)],
'domain': [('invisible', True)],
'code': [('invisible', True)]},
help="""Do not delete starred records.
Checks for the following fields:
- starred
- favorite
- is_starred
- is_favorite""")
only_inactive = fields.Boolean(
string='Only Archived',
default=False,
states={
'time': [('invisible', False)],
'size': [('invisible', True)],
'domain': [('invisible', True)],
'code': [('invisible', True)]},
help="Only delete archived records.")
only_attachments = fields.Boolean(
string='Only Attachments',
default=False,
states={
'time': [('invisible', False)],
'size': [('invisible', False)],
'domain': [('invisible', False)],
'code': [('invisible', True)]},
help="Only delete record attachments.")
#----------------------------------------------------------
# Functions
#----------------------------------------------------------
@api.model
def _get_eval_domain_context(self):
return {
'datetime': datetime,
'dateutil': dateutil,
'timezone': timezone,
'time': time,
'uid': self.env.uid,
'user': self.env.user
}
@api.model
def _get_eval_code_context(self, rule):
return {
'env': self.env,
'model': self.env[rule.model_name],
'uid': self.env.user.id,
'user': self.env.user,
'time': time,
'datetime': datetime,
'dateutil': dateutil,
'timezone': timezone,
'b64encode': base64.b64encode,
'b64decode': base64.b64decode,
'date_format': DEFAULT_SERVER_DATE_FORMAT,
'datetime_format': DEFAULT_SERVER_DATETIME_FORMAT,
'Warning': Warning,
'logger': logging.getLogger("%s (%s)" % (__name__, rule.name)),
}
#----------------------------------------------------------
# View
#----------------------------------------------------------
@api.onchange('model')
def _onchange_model(self):
field_domain = [
('model_id', '=', self.model.id),
('ttype', '=', 'datetime'),
('name', '=', 'create_date')]
model = self.env['ir.model.fields'].sudo()
self.time_field = model.search(field_domain, limit=1)
@api.model
def get_import_templates(self):
return [{
'label': _('Import Template for Auto Vacuum Rules'),
'template': '/muk_autovacuum/static/xls/muk_autovacuum_rules.xls'
}]
#----------------------------------------------------------
# Read
#----------------------------------------------------------
@api.depends('size_parameter')
def _compute_size_parameter_value(self):
for record in self:
try:
record.size_parameter_value = int(record.size_parameter.value)
except ValueError:
record.size_parameter_value = None
#----------------------------------------------------------
# Create, Update, Delete
#----------------------------------------------------------
@api.constrains('code')
def _check_code(self):
for record in self.sudo().filtered('code'):
message = test_python_expr(expr=record.code.strip(), mode="exec")
if message:
raise ValidationError(message)
@api.constrains(
'state', 'model', 'domain', 'code',
'time_field', 'time_type', 'time',
'size_type', 'size_parameter', 'size_order', 'size')
def _validate(self):
validators = {
'time': lambda rec: rec.time_field and rec.time_type and rec.time,
'size': lambda rec: rec.size_order and (rec.size_parameter or rec.size),
'domain': lambda rec: rec.domain,
'code': lambda rec: rec.code,
}
for record in self:
if not validators[record.state](record):
raise ValidationError(_("Rule validation has failed!"))