如何在many2many字段上使用write()方法？

Question

~...py

@api.onchange('test_record')
def abcde(self):
    rec = self.test_record.id
    res = self.env['anc'].browse(rec)
    res.write({'partner_id': (4,self.partner_id.id)})

在上面的代码中，我试图做的是更新浏览模型（res）中的合作伙伴，但是名为partner_id的字段是一个many2many字段，我们可以在其中选择多个合作伙伴。

Answer 1

请注意，这仅适用于

many2many

或

one2many

，如下所示：

(0, 0,  { values })    link to a new record that needs to be created with the given values dictionary
(1, ID, { values })    update the linked record with id = ID (write *values* on it)
(2, ID)                remove and delete the linked record with id = ID (calls unlink on ID, that will delete the object completely, and the link to it as well)
(3, ID)                cut the link to the linked record with id = ID (delete the relationship between the two objects but does not delete the target object itself)
(4, ID)                link to existing record with id = ID (adds a relationship)
(5,)                    unlink all (like using (3,ID) for all linked records). Needs to be a tuple, thus the comma.
(6, 0, [IDs])          replace the list of linked IDs (like using (5) then (4,ID) for each ID in the list of IDs)

但就你而言，可能是

many2one

，应该是

def abcde(self):
    rec = self.test_record.id
    res = self.env['anc'].browse(rec)
    res.write({'partner_id':[(4,self.partner_id.id)]}) # you need to add it as list

从 Odoo 16.0 开始，您可以使用

Command

。更多详情：

Command.create({ values })
Command.update(id, { values })
Command.delete(id)
Command.unlink(id)
Command.link(id)
Command.clear()
Command.set(id)

使用它们的一个例子是：

from odoo import Command


invoice_line_ids = [
    Command.create({'product_id': 200, 'quantity': 5}),
    Command.create({'product_id': 300, 'quantity': 5}),
]

# Combining update & create
line_ids = [
    Command.update(line_ids[0].id, {'balance': 300}),
    Command.update(line_ids[1].id, {'credit': 200}),
    Command.create({
        'balance': -100,
        'account_id': 4,
    })
]


move_finished_ids = [
    Command.delete(move.id) for move in production.move_finished_ids if move.bom_line_id
]

user_ids = [
    Command.unlink(user.id) for user in removed_users if user.is_doctor
]

user_ids = [Command.link(user.id) for user in allowed_users]

user_ids = [Command.clear()]

user_ids = [Command.set(allowed_users.ids)]