Odoo 10-覆盖取消链接方法 [英] Odoo 10 - Overriding unlink method

问题描述

我正在重写account.invoice的取消链接方法，以允许删除上次提出的发票.

I am overriding unlink method from account.invoice to allow delete last raised invoice.

这是我的代码:

class AccountInvoice(models.Model):
    _inherit = "account.invoice"

    @api.multi
    def unlink(self):
        for invoice in self:
            if invoice.state not in ('draft', 'cancel'):
                raise UserError(('You cannot delete an invoice which is not draft or cancelled. You should refund it instead.'))
            elif invoice.move_name:
                if invoice.journal_id.sequence_id:
                    sequence_id = invoice.journal_id.sequence_id
                    last_assigned_number = sequence_id.next_number_do_not_increase() - 1
                    last_assigned_number_text = sequence_id.get_next_char(last_assigned_number)
                    if last_assigned_number_text == invoice.move_name:
                        invoice.journal_id.sequence_id.write({'number_next': last_assigned_number})
                    else:
                        raise UserError(('You cannot delete an invoice after it has been validated (and received a number). You can set it back to "Draft" state and modify its content, then re-confirm it.'))
        return super(AccountInvoice, self).unlink()

到目前为止一切顺利，

我的特定问题在最后一行，当我运行此代码流时，因此在此ROUTINE中未引发UserErrors，但随后运行super(AccountInvoice，self).unlink()并执行旧代码形式account_invoice .py:

My specific question is on the last line, when I ran this code flows goes so no UserErrors are raised in this ROUTINE, but then it runs super(AccountInvoice, self).unlink() and it executes the old code form account_invoice.py:

@api.multi
def unlink(self):
    for invoice in self:
        if invoice.state not in ('draft', 'cancel'):
            raise UserError(_('You cannot delete an invoice which is not draft or cancelled. You should refund it instead.'))
        elif invoice.move_name:
            raise UserError(_('You cannot delete an invoice after it has been validated (and received a number). You can set it back to "Draft" state and modify its content, then re-confirm it.'))
    return super(AccountInvoice, self).unlink()

哪个会引发错误，我应该如何重写此取消链接方法，以免发生这种情况?

Which raises an error, how should I rewrite this unlink method so this does not happen?

推荐答案

不知道这项工作是否可以尝试.

Don't know if this work try it.

将发票的超级称呼为自己.

Call the super of invoice it self.

           super(invoice.AccountInvoice, self).unlink()

别忘了先导入发票.

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