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

我已在模型上手动创建新记录account.acount.type。但是当我尝试升级时account模块中，出现了写在这个问题底部的异常。 Odoo 正在尝试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，我只是添加了一些类型。所以使用数据升级模块的预期行为是 https://www.odoo.com/forum/help-1/question/what-does-noupdate-mean-in-the-following-xml-statement-data-noupdate-1-88009:

noupdate 表示当该模块第二次升级时，该记录不会再次更新。 noupdate="1" 内的记录仅在安装时才会初始化。

Tip：如果您删除了记录，那么在下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 中给出。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上出现的错误

2018-12-11 20:35:31,729 18018 INFO db_name odoo.addons.base.ir.ir_model: Deleting [email protected] /cdn-cgi/l/email-protection (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

• 那么唯一的解决方案是使用现有的帐户类型而不是创建新帐户类型？

• 源代码中是否有某个位置执行此取消链接操作？有人知道吗？

• 这是正常行为吗？

Note：我已经从头开始手动导入会计科目表

这应该是正常行为，尤其是对于account.account.typeIIRC 根本不是特殊的模型。

在模块更新时，odoo 总是删除不存在的外部 ID 的记录。在这种情况下，什么是不存在的外部 ID？它们是系统中的外部 ID，例如您的l10n_es.account_type_third_parties不再在模块中（此处为 l10n_es）。

实际上，这对于 odoo 开发人员来说是非常重要的信息。我不确定它是否在文档中。

关于代码：它正在发生here https://github.com/odoo/odoo/blob/7e5d5045bfa7752176dd8f19c546ff6b19841381/odoo/addons/base/ir/ir_model.py#L1604-L1633

@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()