Odoo 如何解决 return self.models[model_name]

Question

我创建了 2 个自定义模块，“项目”和“实验室”。实验室模块有一个项目的许多领域。项目模块有 many2one 实验室 id 字段。

我对“实验室”模块进行了一些修改，当我尝试更新它时出现此错误：

Traceback (most recent call last):
  File "C:\Odoo13\Odoo 13.0\server\odoo\http.py", line 624, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "C:\Odoo13\Odoo 13.0\server\odoo\http.py", line 310, in _handle_exception
    raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
  File "C:\Odoo13\Odoo 13.0\server\odoo\tools\pycompat.py", line 14, in reraise
    raise value
  File "C:\Odoo13\Odoo 13.0\server\odoo\http.py", line 669, in dispatch
    result = self._call_function(**self.params)
  File "C:\Odoo13\Odoo 13.0\server\odoo\http.py", line 350, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "C:\Odoo13\Odoo 13.0\server\odoo\service\model.py", line 94, in wrapper
    return f(dbname, *args, **kwargs)
  File "C:\Odoo13\Odoo 13.0\server\odoo\http.py", line 339, in checked_call
    result = self.endpoint(*a, **kw)
  File "C:\Odoo13\Odoo 13.0\server\odoo\http.py", line 915, in __call__
    return self.method(*args, **kw)
  File "C:\Odoo13\Odoo 13.0\server\odoo\http.py", line 515, in response_wrap
    response = f(*args, **kw)
  File "C:\Odoo13\Odoo 13.0\server\odoo\addons\web\controllers\main.py", line 1326, in call_button
    action = self._call_kw(model, method, args, kwargs)
  File "C:\Odoo13\Odoo 13.0\server\odoo\addons\web\controllers\main.py", line 1314, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "C:\Odoo13\Odoo 13.0\server\odoo\api.py", line 387, in call_kw
    result = _call_kw_multi(method, model, args, kwargs)
  File "C:\Odoo13\Odoo 13.0\server\odoo\api.py", line 374, in _call_kw_multi
    result = method(recs, *args, **kwargs)
  File "<decorator-gen-65>", line 2, in button_immediate_upgrade
  File "C:\Odoo13\Odoo 13.0\server\odoo\addons\base\models\ir_module.py", line 72, in check_and_log
    return method(self, *args, **kwargs)
  File "C:\Odoo13\Odoo 13.0\server\odoo\addons\base\models\ir_module.py", line 634, in button_immediate_upgrade
    return self._button_immediate_function(type(self).button_upgrade)
  File "C:\Odoo13\Odoo 13.0\server\odoo\addons\base\models\ir_module.py", line 573, in _button_immediate_function
    modules.registry.Registry.new(self._cr.dbname, update_module=True)
  File "C:\Odoo13\Odoo 13.0\server\odoo\modules\registry.py", line 86, in new
    odoo.modules.load_modules(registry._db, force_demo, status, update_module)
  File "C:\Odoo13\Odoo 13.0\server\odoo\modules\loading.py", line 419, in load_modules
    force, status, report, loaded_modules, update_module, models_to_check)
  File "C:\Odoo13\Odoo 13.0\server\odoo\modules\loading.py", line 315, in load_marked_modules
    perform_checks=perform_checks, models_to_check=models_to_check
  File "C:\Odoo13\Odoo 13.0\server\odoo\modules\loading.py", line 202, in load_module_graph
    registry.init_models(cr, model_names, {'module': package.name}, new_install)
  File "C:\Odoo13\Odoo 13.0\server\odoo\modules\registry.py", line 348, in init_models
    model._auto_init()
  File "C:\Odoo13\Odoo 13.0\server\odoo\models.py", line 2482, in _auto_init
    new = field.update_db(self, columns)
  File "C:\Odoo13\Odoo 13.0\server\odoo\fields.py", line 2417, in update_db
    comodel = model.env[self.comodel_name]
  File "C:\Odoo13\Odoo 13.0\server\odoo\api.py", line 463, in __getitem__
    return self.registry[model_name]._browse(self, (), ())
  File "C:\Odoo13\Odoo 13.0\server\odoo\modules\registry.py", line 177, in __getitem__
    return self.models[model_name]
KeyError: 'projects'

当我用谷歌搜索这个错误时，似乎我没有放置我的模块“项目”的依赖项。

所以，下一步是放置依赖项：

# any module necessary for this one to work correctly
    'depends': ['base','mail','projects'],

现在我收到另一个关于它自身依赖的错误：

Odoo Server Error
Traceback (most recent call last):
  File "C:\Odoo13\Odoo 13.0\server\odoo\http.py", line 624, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "C:\Odoo13\Odoo 13.0\server\odoo\http.py", line 310, in _handle_exception
    raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
  File "C:\Odoo13\Odoo 13.0\server\odoo\tools\pycompat.py", line 14, in reraise
    raise value
  File "C:\Odoo13\Odoo 13.0\server\odoo\http.py", line 669, in dispatch
    result = self._call_function(**self.params)
  File "C:\Odoo13\Odoo 13.0\server\odoo\http.py", line 350, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "C:\Odoo13\Odoo 13.0\server\odoo\service\model.py", line 94, in wrapper
    return f(dbname, *args, **kwargs)
  File "C:\Odoo13\Odoo 13.0\server\odoo\http.py", line 339, in checked_call
    result = self.endpoint(*a, **kw)
  File "C:\Odoo13\Odoo 13.0\server\odoo\http.py", line 915, in __call__
    return self.method(*args, **kw)
  File "C:\Odoo13\Odoo 13.0\server\odoo\http.py", line 515, in response_wrap
    response = f(*args, **kw)
  File "C:\Odoo13\Odoo 13.0\server\odoo\addons\web\controllers\main.py", line 1326, in call_button
    action = self._call_kw(model, method, args, kwargs)
  File "C:\Odoo13\Odoo 13.0\server\odoo\addons\web\controllers\main.py", line 1314, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "C:\Odoo13\Odoo 13.0\server\odoo\api.py", line 387, in call_kw
    result = _call_kw_multi(method, model, args, kwargs)
  File "C:\Odoo13\Odoo 13.0\server\odoo\api.py", line 374, in _call_kw_multi
    result = method(recs, *args, **kwargs)
  File "<decorator-gen-66>", line 2, in button_immediate_upgrade
  File "C:\Odoo13\Odoo 13.0\server\odoo\addons\base\models\ir_module.py", line 72, in check_and_log
    return method(self, *args, **kwargs)
  File "C:\Odoo13\Odoo 13.0\server\odoo\addons\base\models\ir_module.py", line 634, in button_immediate_upgrade
    return self._button_immediate_function(type(self).button_upgrade)
  File "C:\Odoo13\Odoo 13.0\server\odoo\addons\base\models\ir_module.py", line 573, in _button_immediate_function
    modules.registry.Registry.new(self._cr.dbname, update_module=True)
  File "C:\Odoo13\Odoo 13.0\server\odoo\modules\registry.py", line 86, in new
    odoo.modules.load_modules(registry._db, force_demo, status, update_module)
  File "C:\Odoo13\Odoo 13.0\server\odoo\modules\loading.py", line 419, in load_modules
    force, status, report, loaded_modules, update_module, models_to_check)
  File "C:\Odoo13\Odoo 13.0\server\odoo\modules\loading.py", line 315, in load_marked_modules
    perform_checks=perform_checks, models_to_check=models_to_check
  File "C:\Odoo13\Odoo 13.0\server\odoo\modules\loading.py", line 176, in load_module_graph
    registry.setup_models(cr)
  File "C:\Odoo13\Odoo 13.0\server\odoo\modules\registry.py", line 255, in setup_models
    model._setup_fields()
  File "C:\Odoo13\Odoo 13.0\server\odoo\models.py", line 2690, in _setup_fields
    field.setup_full(self)
  File "C:\Odoo13\Odoo 13.0\server\odoo\fields.py", line 431, in setup_full
    self._setup_regular_full(model)
  File "C:\Odoo13\Odoo 13.0\server\odoo\fields.py", line 2897, in _setup_regular_full
    comodel = model.env[self.comodel_name]
  File "C:\Odoo13\Odoo 13.0\server\odoo\api.py", line 463, in __getitem__
    return self.registry[model_name]._browse(self, (), ())
  File "C:\Odoo13\Odoo 13.0\server\odoo\modules\registry.py", line 177, in __getitem__
    return self.models[model_name]
KeyError: 'laboratory'

并且当我更改依赖项并像这样添加自身模块时：

# any module necessary for this one to work correctly
    'depends': ['base','mail','projects','laboratory'],

我收到 500 内部服务器错误。

有人可以解释为什么会发生这种情况以及我该如何处理吗？

Answer 1

原因

是因为"circular dependency"。模块 "projects" 依赖于 "laboratory"。但是 "laboratory" 依赖于 "projects" 并且它变成了循环。因此，模块升级未完成，未添加字段并显示 KeyError。检查 Apps 中的那些模块，那些模块将只被 "Cancel Upgrade" 按钮卡住。我正在 odoo 11 上测试这个。

修复

我能想到几个办法来解决这个问题。

将 "project" 和 "laboratory" 模型移动到同一模块。
改用 "many2many" 字段。
创建另一个依赖于这两个模块的模块，并通过继承在此处定义"one2many"和"many2one"。
通过继承将一个字段移动到另一个模块。我的意思是，例如继承 "Laboratory" 并在 "Projects" 模块中添加 "projects" 字段。

Odoo 如何解决 return self.models[model_name]

Odoo How to solve return self.models[model_name]

module

dependencies

odoo

updates

原因

修复