Default Method Trigger my api.onchange Method why ?

Odoo is the world's easiest all-in-one management software.
It includes hundreds of business apps:

客户关系管理
e-Commerce
会计
库存
PoS
Project
MRP

All apps

所有帖文人徽章

标签（查看所有）

odoo accounting v14 pos v15

关于此论坛区

帮助

Default Method Trigger my api.onchange Method why ?

default onchange odoo12

3 回复

9240 查看

Usman Farzand

```

operating_unit = fields.Many2one('operating.unit', string='Operating Unit', default=lambda self: self._get_default_opr_unit())

@api.model

def _get_default_opr_unit(self):

return self.env['ir.default'].sudo().get('res.config.settings', 'operating_unit' or False)

@api.multi

@api.onchange('operating_unit')

def _operating_unit_onchange(self):

if self.operating_unit:

return {'domain': {'adjustment_journal_id': [('operating_unit_id.id', '=', self.operating_unit.id)]}}

else: return {'domain': {'adjustment_journal_id': [('operating_unit_id.id', '=', False)]}}

```

when i load my wizard default value fill correctly but auto run my onchange method why ?
i want to run my method when i change my field not auto

where i'm wrong ?

Mihran Thalhath

最佳答案

Hi,

Your onchange method depends upon the operating_unit field. Since a default value is being loaded to the operating_unit, there is a change in value which will trigger the onchange method. So whenever the value in that field changes, even when the default value is loaded, it will trigger the onchange method.

Usman Farzand

编写者

may i have other way load default value first then my on change method run ? any logic

Mihran Thalhath

The onchange method will run if you are passing the default value. You can check whether the onchange is triggered for the first time and if yes, don't execute the remaining part.

Usman Farzand

编写者

how i know it's run first time ?

Mihran Thalhath

Try creating a new invisible field without any value. In your onchange check whether this field is empty or not. If it is empty, write some value to this field and exit. If it is not empty continue with your onchange. I mentioned this because this is easy to understand. There may be better ways to accomplish the same thing.

Usman Farzand

编写者

this is close to fulfill my requirement

Mihran Thalhath

Cool! Please revert if you completed it!

faOtools

When default method is launched, it changes the field value: false > default value.

This operation is caught by @api.onchange. Hence, your onchange method is triggered.

There is now way to avoid this, rather than add some extra checks in your onchange. Perhaps, some check of a previous value (using self._origin).

喜欢讨论吗？不要只阅读，加入进来！

立即创建账户，享受专属功能，与我们的精彩社区互动！

相关帖文	回复	查看
How to get the pseudo-record like one of api.onchange() ? 已解决 onchange odoo12	1 3月 20	3705
How to avoid onchange loop on Odoo 12 onchange loop odoo12	0 3月 22	1834
Update a field value in all One2many lines(excluding current record) when current record is updated. one2many onchange odoo12	0 4月 20	2432
ValueError: Expected singleton onchange odoo odoo12	2 12月 19	2812
Display many2many Field data into one2many field api onchange odoo12	2 12月 19	7561

此问题已终结

喜欢讨论吗？不要只阅读，加入进来！