如何在不删除整个模块的情况下删除 Odoo 模型类？答案

【问题标题】：How do I remove an Odoo model class without removing the entire module?如何在不删除整个模块的情况下删除 Odoo 模型类？
【发布时间】：2022-01-23 03:45:04
【问题描述】：

我有一个带有模型类的模块，我想删除它，因为它不再需要，但模块中的其他模型仍然很重要。我可以删除引用不需要的模型的所有其他文件而不会出现任何错误（安全 CSV、视图、数据文件等），但是当我最终删除对包含类本身的实际文件的引用时（我在 from . import model_name 中评论models/__init__.py)，我收到以下错误：


odoo-server | Traceback (most recent call last):
odoo-server | File "/usr/lib/python3/dist-packages/odoo/modules/registry.py", line 60, in __new__
odoo-server | return cls.registries[db_name]
odoo-server | File "/usr/lib/python3/dist-packages/odoo/tools/func.py", line 69, in wrapper
odoo-server | return func(self, *args, **kwargs)
odoo-server | File "/usr/lib/python3/dist-packages/odoo/tools/lru.py", line 44, in __getitem__
odoo-server | a = self.d[obj].me
odoo-server | KeyError: 'database_name'
odoo-server |
odoo-server | During handling of the above exception, another exception occurred:
odoo-server |
odoo-server | Traceback (most recent call last):
odoo-server | File "/usr/lib/python3/dist-packages/odoo/modules/registry.py", line 86, in new
odoo-server | odoo.modules.load_modules(registry._db, force_demo, status, update_module)
odoo-server | File "/usr/lib/python3/dist-packages/odoo/modules/loading.py", line 477, in load_modules
odoo-server | env['ir.model.data']._process_end(processed_modules)
odoo-server | File "/usr/lib/python3/dist-packages/odoo/addons/base/models/ir_model.py", line 2040, in _process_end
odoo-server | record.unlink()
odoo-server | File "/usr/lib/python3/dist-packages/odoo/addons/base/models/ir_model.py", line 1217, in unlink
odoo-server | not self.env[selection.field_id.model]._abstract:
odoo-server | File "/usr/lib/python3/dist-packages/odoo/api.py", line 466, in __getitem__
odoo-server | return self.registry[model_name]._browse(self, (), ())
odoo-server | File "/usr/lib/python3/dist-packages/odoo/modules/registry.py", line 176, in __getitem__
odoo-server | return self.models[model_name]
odoo-server | KeyError: 'model_name'

为什么我不能只删除对包含该类的文件的引用？如何在不卸载整个模块的情况下删除模型？

【问题讨论】：

你在更新你的模块吗？

标签： python module model odoo

【解决方案1】：

这是因为您的模型仍然存储在数据库中，如果您想删除它，请务必这样做：

打开 Postgres 查询工具并运行以下命令：

delete from ir_model_fields where model_id in (select id from ir_model where model = 'MODEL.NAME');
delete from ir_model_relation where model in (select id from ir_model where model = 'MODEL.NAME');
delete from ir_model where model = 'MODEL.NAME';

【讨论】：