如何在odoo中的搜索orm中获取计算字段值

Question

我在 odoo 10 中用计算方法定义了一个 computed field，现在我想在 search orm 中获取它的值，但它的值仍然是 False，当我尝试 store=True 它的值没有被改变。如果有人有解决方案请告诉我，我将不胜感激。我的代码是：

balance_amount = fields.Float(string="Balance Amount", compute='_compute_loan_amount')

@api.one
def _compute_loan_amount(self):
    total_paid = 0.0
    for loan in self:
        for line in loan.loan_lines:
            if line.paid:
                total_paid += line.amount
        balance_amount = loan.loan_amount - total_paid
        self.total_amount = loan.loan_amount
        self.balance_amount = balance_amount
        self.total_paid_amount = total_paid

当我使用下面的search_count时：

loan_count = self.env['hr.loan'].search_count([('employee_id', '=', values['employee_id']), ('state', '=', 'approve'),
                                                   ('balance_amount', '!=', 0)])

即使balance_amount等于Zero

也总是得到计数值

Answer 1

有些事情你必须在这里做。

定义重新计算依赖项并使用 @api.multi 和 for 循环覆盖 self 或使用 api.one 并跳过 for 循环。如果我理解你的计算方法是正确的：

@api.multi
@api.depends('loan_lines.paid', 'loan_lines.amount', 'loan_amount')
def _compute_loan_amount(self):
    for loan in self:
        total_paid = 0.0
        for line in loan.loan_lines:
            if line.paid:
                total_paid += line.amount
        balance_amount = loan.loan_amount - total_paid
        loan.total_amount = loan.loan_amount  # ???
        loan.balance_amount = balance_amount
        loan.total_paid_amount = total_paid

尝试使用浮点舍入，例如2 位小数，因为浮点数可以产生类似 0.000000000000000002 的值，这会破坏您的搜索。
您要么必须存储该值，要么必须定义一个 search 方法。第二种方法更难（根据我的经验）。

如何在odoo中的搜索orm中获取计算字段值

How to get computed field value in search orm in odoo

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