如何将默认值覆盖为非默认值

Question

我想将purchase.order 中的picking_type_id 值覆盖为非默认值。我试过这样做，但它不起作用：

_columns = {
    'picking_type_id': fields.many2one('stock.picking.type', 'Deliver To', help="This will determine picking type of incoming shipment", required=False, states={'confirmed': [('readonly', False)], 'approved': [('readonly', False)], 'done': [('readonly', True)]}),
} 
_defaults = {
    'picking_type_id': False
}

Answer 1

默认的picking_type_id 值来自窗口动作。您可以在stock_picking_views 文件中找到所有窗口操作。

使用default属性设置默认值，例如：

state = fields.Selection([
        ('draft','Draft'),
        ('open', 'Open'),
        ('in_payment', 'In Payment'),
        ('paid', 'Paid'),
        ('cancel', 'Cancelled'),
    ], string='Status', default='draft')

要覆盖默认值，无论它在哪里定义，您都可以重新定义default_get 方法。试试下面的代码：

class StockPicking(models.Model):
    _inherit = 'stock.picking'

    @api.model
    def default_get(self, fields_list):
        res = super(StockPicking, self).default_get(fields_list)
        res['picking_type_id'] = False
        return res