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130 lines
4.7 KiB
130 lines
4.7 KiB
# -*- coding: utf-8 -*-
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# © 2014-2016 Therp BV <http://therp.nl>
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# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
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from odoo import _, api, fields, models
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from odoo.exceptions import UserError
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from ..identifier_adapter import IdentifierAdapter
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class CleanupPurgeLineColumn(models.TransientModel):
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_inherit = 'cleanup.purge.line'
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_name = 'cleanup.purge.line.column'
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model_id = fields.Many2one('ir.model', 'Model', required=True,
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ondelete='CASCADE')
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wizard_id = fields.Many2one(
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'cleanup.purge.wizard.column', 'Purge Wizard', readonly=True)
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@api.multi
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def purge(self):
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"""
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Unlink columns upon manual confirmation.
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"""
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if self:
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objs = self
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else:
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objs = self.env['cleanup.purge.line.column']\
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.browse(self._context.get('active_ids'))
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for line in objs:
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if line.purged:
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continue
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model_pool = self.env[line.model_id.model]
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# Check whether the column actually still exists.
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# Inheritance such as stock.picking.in from stock.picking
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# can lead to double attempts at removal
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self.env.cr.execute(
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'SELECT count(attname) FROM pg_attribute '
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'WHERE attrelid = '
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'( SELECT oid FROM pg_class WHERE relname = %s ) '
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'AND attname = %s',
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(model_pool._table, line.name))
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if not self.env.cr.fetchone()[0]:
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continue
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self.logger.info(
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'Dropping column %s from table %s',
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line.name, model_pool._table)
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self.env.cr.execute(
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'ALTER TABLE %s DROP COLUMN %s',
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(
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IdentifierAdapter(model_pool._table),
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IdentifierAdapter(line.name)
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))
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line.write({'purged': True})
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# we need this commit because the ORM will deadlock if
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# we still have a pending transaction
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self.env.cr.commit() # pylint: disable=invalid-commit
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return True
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class CleanupPurgeWizardColumn(models.TransientModel):
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_inherit = 'cleanup.purge.wizard'
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_name = 'cleanup.purge.wizard.column'
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_description = 'Purge columns'
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# List of known columns in use without corresponding fields
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# Format: {table: [fields]}
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blacklist = {
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'wkf_instance': ['uid'], # lp:1277899
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}
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@api.model
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def get_orphaned_columns(self, model_pools):
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"""
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From openobject-server/openerp/osv/orm.py
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Iterate on the database columns to identify columns
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of fields which have been removed
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"""
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columns = list(set([
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column.name
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for model_pool in model_pools
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for column in model_pool._fields.values()
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if not (column.compute is not None and not column.store)
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]))
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columns += models.MAGIC_COLUMNS
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columns += self.blacklist.get(model_pools[0]._table, [])
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self.env.cr.execute(
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"SELECT a.attname FROM pg_class c, pg_attribute a "
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"WHERE c.relname=%s AND c.oid=a.attrelid AND a.attisdropped=False "
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"AND pg_catalog.format_type(a.atttypid, a.atttypmod) "
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"NOT IN ('cid', 'tid', 'oid', 'xid') "
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"AND a.attname NOT IN %s",
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(model_pools[0]._table, tuple(columns)))
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return [column for column, in self.env.cr.fetchall()]
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@api.model
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def find(self):
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"""
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Search for columns that are not in the corresponding model.
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Group models by table to prevent false positives for columns
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that are only in some of the models sharing the same table.
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Example of this is 'sale_id' not being a field of stock.picking.in
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"""
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res = []
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# mapping of tables to tuples (model id, [pool1, pool2, ...])
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table2model = {}
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for model in self.env['ir.model'].search([]):
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if model.model not in self.env:
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continue
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model_pool = self.env[model.model]
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if not model_pool._auto:
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continue
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table2model.setdefault(
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model_pool._table, (model.id, [])
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)[1].append(model_pool)
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for table, model_spec in table2model.items():
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for column in self.get_orphaned_columns(model_spec[1]):
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res.append((0, 0, {
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'name': column,
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'model_id': model_spec[0]}))
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if not res:
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raise UserError(_('No orphaned columns found'))
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return res
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purge_line_ids = fields.One2many(
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'cleanup.purge.line.column', 'wizard_id', 'Columns to purge')
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