Odoo：域不與相關領域一起工作

Question

我有一個模型“custom.products”，它通過 one2many 字段“branch_line”連接到模型“custom.branch.line”，我想在相關字段“branch1”和“branch2”上應用域過濾器，我想要它顯示每個分支中每個產品的數量，但是當我將域應用於相關字段時它不起作用，它只是檢索數據庫表中的第一個條目，我的代碼如下

class CustomProduct(models.Model):
    _name = 'custom.product'
    _description = 'Product Record'

    branch_line = fields.One2many('custom.branch.line', 'product_id', string='Branch Lines', )
    branch1 = fields.Integer(string="branch 1", related="branch_line.qty", domain="[('branch_line.branch_id','=', 3)]", )
    branch2 = fields.Integer(string="branch 2", related="branch_line.qty", domain="[('branch_line.branch_id','=', 4)]", )

class CustomBranchLine(models.Model):
    _name = 'custom.branch.line'
    _description = 'Branch Line Record'

    branch_id = fields.Many2one('custom.branch', string='Branch')
    product_id = fields.Many2one('custom.product', string='Product')
    qty = fields.Integer(string="QTY", required=False, )

Answer 1

您應該使用計算字段來獲取 branch1 和 branch2 字段的正確值：

branch1 = fields.Integer(string="branch 1",compute="_get_branch")
branch2 = fields.Integer(string="branch 2",compute="_get_branch")

@api.multi
def _get_branch(self):
    for line in self:
        line.branch1 = self.env['custom.branch.line'].search([('branch_id','=',3)],limit=1).qty
        line.branch2 =         self.env['custom.branch.line'].search([('branch_id','=',4)],limit=1).qty