如何在看板视图Odoo10中显示静态值？

Question

我有state字段，这是一个Selection字段。我想根据这个state字段在kanban视图中对记录进行分组。

这是我的代码：

*.py

  state = fields.Selection([('draft','Draft'),('process','Processing')
        ,('intransit','In-transit'),('done','Delivered'),('cancel','Canceled')],
        default="draft",string="Status", track_visibility="onchange",
        group_expand='_expand_states',index=True)

  @api.model
  def _expand_states(self, states, domain, order):
      return [key for key, val in type(self).state.selection]

但是我发现了一个错误：

> Traceback (most recent call last):
  File "/home/user/Projects/odoo-10/odoo/http.py", line 642, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/home/user/Projects/odoo-10/odoo/http.py", line 684, in dispatch
    result = self._call_function(**self.params)
  File "/home/user/Projects/odoo-10/odoo/http.py", line 334, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/home/user/Projects/odoo-10/odoo/service/model.py", line 101, in wrapper
    return f(dbname, *args, **kwargs)
  File "/home/user/Projects/odoo-10/odoo/http.py", line 327, in checked_call
    result = self.endpoint(*a, **kw)
  File "/home/user/Projects/odoo-10/odoo/http.py", line 942, in __call__
    return self.method(*args, **kw)
  File "/home/user/Projects/odoo-10/odoo/http.py", line 507, in response_wrap
    response = f(*args, **kw)
  File "/home/user/Projects/odoo-10/odoo/addons/web/controllers/main.py", line 895, in call_kw
    return self._call_kw(model, method, args, kwargs)
  File "/home/user/Projects/odoo-10/odoo/addons/web/controllers/main.py", line 887, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/home/user/Projects/odoo-10/odoo/api.py", line 687, in call_kw
    return call_kw_model(method, model, args, kwargs)
  File "/home/user/Projects/odoo-10/odoo/api.py", line 672, in call_kw_model
    result = method(recs, *args, **kwargs)
  File "/home/user/Projects/odoo-10/odoo/models.py", line 1939, in read_group
    result = self._read_group_raw(domain, fields, groupby, offset=offset, limit=limit, orderby=orderby, lazy=lazy)
  File "/home/user/Projects/odoo-10/odoo/models.py", line 2052, in _read_group_raw
    aggregated_fields, count_field, result, read_group_order=order,
  File "/home/user/Projects/odoo-10/odoo/models.py", line 1680, in _read_group_fill_results
    groups = self.env[field.comodel_name].browse(group_ids)
  File "/home/user/Projects/odoo-10/odoo/api.py", line 760, in __getitem__
    return self.registry[model_name]._browse((), self)
  File "/home/user/Projects/odoo-10/odoo/modules/registry.py", line 177, in __getitem__
    return self.models[model_name]
KeyError: None

我怎么才能解决这个问题？

Answer 1

您是否将default_group_by="state“放置在xml文件中，其中kanban标记作为属性放置。删除group_expand方法并从字段中删除属性，因为它是一个选择字段，因此您不需要返回in，只需将属性default_group_by="state“放置在xml文件中，您就会看到结果。

Answer 2

根据源代码文档，在group_expand中定义的方法应该以m2o类对(key，label)的形式返回我们希望为该字段显示的所有聚合值的列表。

_read_group_fill_results方法总是尝试获取字段的名字来构建组，而且由于没有为选择字段定义comodel_name，Odoo将引发KeyError: None。

不幸的是，返回将作为组使用的值列表在Odoo-11之后是可用的。