为什么帐户模块升级会取消某些表上记录的链接

Question

我只是想确保升级base或account模块一切正常，因为如果我对模块进行新的更改，我希望将来升级数据库。

我已经在型号account.acount.type上手动创建了新记录。但是，当我尝试升级account模块时，出现了写在这个问题底部的异常。Odoo正试图从该模型中删除记录。为什么会发生这种情况？

我已经安装了帐户模块，但我没有从该表中删除任何记录，我只添加了一些类型。因此，用数据升级模块的预期行为是：

noupdate意味着当该模块第二次升级时，该记录将不会再次更新。noupdate="1"中的记录将仅在安装时初始化。

提示：如果您删除了记录，那么在下一次更新时，系统将重新创建它。通常是那些有可能从前端修改的记录，在noupdate=1内给定。例如，自动调度程序记录。

<data noupdate="1">
<!-- account.account.type -->
<record model="account.account.type" id="data_account_type_receivable">
<field name="name">Receivable</field>
<field name="type">receivable</field>
<field name="include_initial_balance" eval="True"/>
</record>
<!-- [...]  -->

这是升级帐户模块时日志中出现的错误

2018-12-11 20:35:31,729 18018 INFO db_name odoo.addons.base.ir.ir_model: Deleting [e-mail] (l10n_es.account_type_third_parties)
2018-12-11 20:35:31,760 18018 ERROR db_name odoo.sql_db: bad query: b'DELETE FROM account_account_type WHERE id IN (59)'
ERROR: null value in column "user_type_id" violates not-null constraint
DETAIL:  Failing row contains (14927, Account name or description, null, 4, f, null, other, null, f, null, 1, null, 1, 2018-12-11 18:10:24.091826, 1, 2018-12-11 18:10:24.091826, t).
CONTEXT:  SQL statement "UPDATE ONLY "public"."account_account" SET "user_type_id" = NULL WHERE $1 OPERATOR(pg_catalog.=) "user_type_id""
2018-12-11 20:35:31,763 18018 WARNING db_name odoo.modules.loading: Transient module states were reset
2018-12-11 20:35:31,763 18018 ERROR db_name odoo.modules.registry: Failed to load registry
Traceback (most recent call last):
File "/path/to/odoo/src/modules/registry.py", line 85, in new
odoo.modules.load_modules(registry._db, force_demo, status, update_module)
File "/path/to/odoo/src/modules/loading.py", line 414, in load_modules
env['ir.model.data']._process_end(processed_modules)
File "/path/to/odoo/src/linked/base/ir/ir_model.py", line 1628, in _process_end
record.unlink()
File "/path/to/odoo/src/models.py", line 2935, in unlink
cr.execute(query, (sub_ids,))
File "/path/to/odoo/src/sql_db.py", line 155, in wrapper
return f(self, *args, **kwargs)
File "/path/to/odoo/src/sql_db.py", line 232, in execute
res = self._obj.execute(query, params)
psycopg2.IntegrityError: null value in column "user_type_id" violates not-null constraint
This is raised because the account type is being used by some account.

问题

• 所以唯一的解决方案是使用现有的帐户类型，而不是创建新的帐户类型？

• 在源代码中是否有执行此取消链接操作的位置？有人知道吗？

• 这是正常行为吗？

注意：我已经从手动导入了科目表

Answer 1

这应该是正常行为，尤其是对于account.account.type，IIRC根本不是特殊模型。

模块更新时，odoo总是删除不存在的外部ID的记录。在此上下文中，什么是不存在的外部ID？它们是系统中的外部ID，例如不在模块中的l10n_es.account_type_third_parties(此处为l10n_es(。

事实上，这对于odoo开发人员来说是一个非常重要的信息。我不确定它是否在文档中。

关于代码：它发生在这里

@api.model
def _process_end(self, modules):
""" Clear records removed from updated module data.
This method is called at the end of the module loading process.
It is meant to removed records that are no longer present in the
updated data. Such records are recognised as the one with an xml id
and a module in ir_model_data and noupdate set to false, but not
present in self.loads.
"""
if not modules or tools.config.get('import_partial'):
return True
bad_imd_ids = []
self = self.with_context({MODULE_UNINSTALL_FLAG: True})
query = """ SELECT id, name, model, res_id, module FROM ir_model_data
WHERE module IN %s AND res_id IS NOT NULL AND noupdate=%s ORDER BY id DESC
"""
self._cr.execute(query, (tuple(modules), False))
for (id, name, model, res_id, module) in self._cr.fetchall():
if (module, name) not in self.loads:
if model in self.env:
_logger.info('Deleting %s@%s (%s.%s)', res_id, model, module, name)
record = self.env[model].browse(res_id)
if record.exists():
record.unlink()
else:
bad_imd_ids.append(id)
if bad_imd_ids:
self.browse(bad_imd_ids).unlink()
self.loads.clear()