如何只允许在 many2one 字段中创建选项

Question

如何隐藏 many2one 字段中的所有项目。我只想让用户创建一个新的付款期限。我们在 account_invoice.py:

的 account 模块中有这段代码

class AccountInvoice(models.Model):
    _name = "account.invoice"
    payment_term_id = fields.Many2one('account.payment.term', 
                                       string='Payment Terms', 
                                       oldname='payment_term',
                                       readonly=True, 
                                       states={'draft': [('readonly', False)]})

在account_invoice_view.xml中我们有：

<field name="payment_term_id" 
       options="{'no_create': True}" 
       attrs="{'invisible': [('payment_term_id','=',False)]}"/>

我试过这段代码 {'no_open':True} 但它没有用。

Answer 1

如果您想隐藏列表中的所有元素，请尝试添加始终为 False:

的域

<field name="id" />
<field name="payment_term_id" 
       domain="[('id', '=', -1)]"
       attrs="{'invisible': [('payment_term_id','=',False)]}"/>

options="{'no_create': True}"如果我理解得很好，你会得到与你想要的相反的结果

Answer 2

我想你会发现这个解决方案适合你：

建议在你的模型中添加一个字段，这个字段是 many2many 字段包含在当前记录中创建的 payment_term_id 的列表。

 # this field is for technical purpose 
 create_payment_terms_ids = fields.Many2many(co_model='account.payment.term',
                                             relation='created_payment_rel',
                                             column1= 'invoice_id',
                                             column2= 'paymen_id',
                                             string='Created payment terms')

在此之后使用 onchange 方法来跟踪创建的付款并添加新的此字段的付款条件

@api.onchange('payment_term_id')
def onchange_payment_terms(self):
    """ keep track of created payment from the current
        invoice and show only them in drop down list."""
    if self.payment_term_id:
        # keep list of old ids here
        payment_ids = self.create_payment_terms_ids and self.create_payment_terms_ids.ids or []
        # check if list payment is empty this means that this is the first created payment
        # second check if the selected payment is a new payment that is created 
        # if one of the two is true add the selected value to the list of payment
        if not self.create_payment_terms_ids or self.payment_term_id.id not in payment_ids:
            payment_ids.append(self.payment_term_id.id)
            self.create_payment_terms_ids = [(4, self.payment_term_id.id)]

        # if list is not empty we change the domain to show only payment that exist in the list
        # else we use a special domain to show empty set.
        domain = payment_ids and [('payment_term_id', 'in', payment_ids)] or [('id', '=', -1)]
        return {'domain': {'payment_term_id': domain}}

在您的视图中添加带有 visible = "1" 的新字段，您不会让用户看到它的值。你需要把它放在视图中，因为你需要它在 onchange 事件中的值，如果你不把它放在你的 many2many 字段将永远是空的。

       <field name="create_payment_terms_ids" invisible="1"/>

并删除 options="{'no_create':False}" 这将删除下拉列表中的创建和编辑选项，而您不希望这样。

注意：当您在开发中时，请删除 invisible="1" 以查看 many2many 字段是否包含您拥有的付款列表创建。

如何只允许在 many2one 字段中创建选项

How to allow only create option in many2one field

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