如何在odoo中搜索orm中获取计算字段值

Question

我已在computed field中使用计算方法定义odoo 10，现在我想在search orm中获取其值，但其值仍为False，当我尝试store=True时它的价值没有改变。 如果有人有解决方案请告诉我，我会非常感激。 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

，也始终会获得计数值

Answer 1

你有一些事情要做。

1. 定义重新计算依赖项，并使用@api.multi和for self上的for循环，或使用api.one并跳过for循环。如果我理解您的计算方法正确：

@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

1. 尝试使用例如浮点数2个小数，因为浮点数可以产生0.000000000000000002之类的值，这会破坏你的搜索。

2. 您必须存储值或必须定义search方法。第二种方法更难（根据我的经验）。