server-tools/database_cleanup/models/purge_fields.py

124 lines
4.3 KiB
Python

# Copyright 2014-2016 Therp BV <http://therp.nl>
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
# pylint: disable=consider-merging-classes-inherited
from odoo import _, api, models, fields
from odoo.exceptions import UserError
from odoo.addons.base.models.ir_model import MODULE_UNINSTALL_FLAG
from ..identifier_adapter import IdentifierAdapter
class CleanupPurgeLineField(models.TransientModel):
_inherit = 'cleanup.purge.line'
_name = 'cleanup.purge.line.field'
_description = 'Purge fields'
wizard_id = fields.Many2one(
'cleanup.purge.wizard.field', 'Purge Wizard', readonly=True
)
field_id = fields.Many2one(
comodel_name='ir.model.fields',
string='Field',
)
model_id = fields.Many2one(
comodel_name="ir.model",
related="field_id.model_id",
string="Model",
store=True,
)
model_name = fields.Char(
related="model_id.model",
string="Model Technical Name",
store=True,
)
@api.multi
def purge(self):
"""
Unlink fields upon manual confirmation.
"""
context_flags = {
MODULE_UNINSTALL_FLAG: True,
'purge': True,
}
if self:
objs = self
else:
objs = self.env['cleanup.purge.line.action']\
.browse(self._context.get('active_ids'))
to_unlink = objs.filtered(lambda x: not x.purged and x.field_id)
self.logger.info('Purging field entries:')
for rec in to_unlink:
self.logger.info(' - %s.%s', rec.model_name, rec.field_id.name)
field_id = rec.with_context(**context_flags).field_id
model = self.env[rec.model_name]
table_name = model._table
column_name = field_id.name
force_drop = False
# FIX: on unlink, odoo will not DROP the SQL column even if exists if the
# store attribute is set to False.
if not field_id.store and model._auto:
force_drop = True
# Odoo will internally drop the SQL column
field_id.unlink()
if force_drop:
self._drop_column(table_name, column_name)
rec.purged = True
return True
def _drop_column(self, table, column):
# Use code from `purge_columns.py::purge()`
# Check whether the column actually still exists.
# Inheritance such as stock.picking.in from stock.picking
# can lead to double attempts at removal
self.env.cr.execute(
'SELECT count(attname) FROM pg_attribute '
'WHERE attrelid = '
'( SELECT oid FROM pg_class WHERE relname = %s ) '
'AND attname = %s', (table, column)
)
if not self.env.cr.fetchone()[0]:
return
self.logger.info('Dropping column %s from table %s', column, table)
self.env.cr.execute(
'ALTER TABLE %s DROP COLUMN %s',
(IdentifierAdapter(table), IdentifierAdapter(column))
)
# we need this commit because the ORM will deadlock if
# we still have a pending transaction
self.env.cr.commit() # pylint: disable=invalid-commit
class CleanupPurgeWizardField(models.TransientModel):
_inherit = 'cleanup.purge.wizard'
_name = 'cleanup.purge.wizard.field'
_description = 'Purge fields'
@api.model
def find(self):
"""
Search for fields not technically mapped to a model.
"""
res = []
ignored_fields = models.MAGIC_COLUMNS + [
"display_name", models.BaseModel.CONCURRENCY_CHECK_FIELD
]
domain = [('state', '=', 'base')]
for field_id in self.env['ir.model.fields'].search(domain):
if field_id.name in ignored_fields:
continue
model = self.env[field_id.model_id.model]
if field_id.name not in model._fields.keys():
res.append(
(0, 0, {
'name': field_id.name,
'field_id': field_id.id,
})
)
if not res:
raise UserError(_('No orphaned fields found'))
return res
purge_line_ids = fields.One2many(
'cleanup.purge.line.field', 'wizard_id', 'Fields to purge'
)