计算从一个模型到另一个模型的字段数量 - Odoo v8

时间:2017-11-15 01:25:07

标签: python python-2.7 odoo-8 odoo

考虑以下四种模式:

class bsi_production_order(models.Model):
    _name = 'bsi.production.order'

    name = fields.Char('Reference', required=True, index=True, copy=False, readonly='True', default='New')
    date = fields.Date(string="Production Date")
    production_type = fields.Selection([
        ('budgeted','Budgeted'),
        ('nonbudgeted','Non Budgeted'),
        ('direct','Direct Order'),
    ], string='Type of Order', index=True,  
    track_visibility='onchange', copy=False,
    help=" ")
    notes = fields.Text(string="Notes")
    order_lines = fields.One2many('bsi.production.order.lines', 'production_order', states={'finished': [('readonly', True)], 'cancel': [('readonly', True)]}, string="Order lines", copy=True)
    print_orders = fields.One2many('bsi.print.order', 'production_orders', string="Print Orders")

class bsi_production_order_lines(models.Model):
    _name = 'bsi.production.order.lines'

    production_order = fields.Many2one('bsi.production.order', string="Production Orders")
    isbn = fields.Many2one('product.product', string="ISBN", domain="[('is_isbn', '=', True)]")
    qty = fields.Float(string="Quantity")
    consumed_qty = fields.Float(string="Consumed quantity")
    remaining_qty = fields.Float(string="Remaining quantity", compute="_remaining_func")

    @api.onchange('qty', 'consumed_qty')
    def _remaining_func(self):
        if self.qty or self.consumed_qty:
            self.remaining_qty = self.qty +(-self.consumed_qty)

class bsi_print_order(models.Model):
    _name = 'bsi.print.order'

    name = fields.Char('Reference', required=True, index=True, copy=False, readonly='True', default='New')
    date = fields.Date(string="Print Date")
    origin = fields.Char(string="Origin")
    production_orders = fields.Many2one('bsi.production.order', ondelete='cascade', string="Production Order")
    order_lines = fields.One2many('bsi.print.order.lines', 'print_order', string="Order lines")

class bsi_print_order_lines(models.Model):
    _name = 'bsi.print.order.lines'

    print_order = fields.Many2one('bsi.print.order', string="Print Order")
    production_orders = fields.Many2one('bsi.production.order', ondelete='cascade', string="Production Order")
    isbn = fields.Many2one('product.product', string="ISBN", domain="[('is_isbn', '=', True)]")
    qty = fields.Integer(string="Quantity")
    consumed_qty = fields.Integer(string="Quantity consumed")
    remaining_qty = fields.Float(string="Remaining quantity", compute="_remaining_func")

    @api.onchange('qty', 'consumed_qty')
    def _remaining_func(self):
        if self.consumed_qty or self.qty:
            self.remaining_qty = self.qty +(-self.consumed_qty)

因此,生产订单包含生产订单行,而打印订单也有订单行(One2many order_lines字段)

两者都有一种方法,都称为_remaining_func_

对于remaining_qty字段,这些都可以,但consumed_qty应该在production.order和print.order之间相互关联。

因此,例如,如果qty上的bsi.production.order.lines为10,(还有其他方法可以从生产订单创建bsi.print.order),并且bsi.print.order我放了qtybsi.production.order.line值为5时,原始10应该是_remaining_func_上的5,我认为使用类似@login_required def edit_sale_view(request, id): instance = get_object_or_404(Sale, id=id) form = EditSaleForm(instance=instance) if request.method == "POST": form = EditSaleForm(request.POST, instance=instance) if form.is_valid(): obj = form.save(commit=False) obj.user = request.user obj.save() return JsonResponse({'msg': 'Data saved'}) else: return JsonResponse({'msg': 'Data not saved'}) return HttpResponse(form.as_p()) 的方法我可以实现此目的,但我有点困惑如何在两个模型之间做到这一点。

有什么想法吗?

如果需要进一步说明,请告诉我。

1 个答案:

答案 0 :(得分:2)

除非bsi.production.orderbsi.print.order之间的关系是1:1,否则无法管理您想要的内容,但在您的情况下,生产订单似乎可以有多个打印订单。我举个例子:

您可以在Many2one中创建bsi.print.order.line字段,指向bsi.production.order.line

class bsi_print_order_lines(models.Model):
    _name = 'bsi.print.order.lines'

    po_line_related = fields.Many2one('bsi.production.order.lines', ondelete='cascade', string="Production Order Line Related")

每次创建打印行时,您都可以轻松创建相关的生产线(您拥有所需的所有数据):

@api.model
def create(self, vals):
    print_line = super(bsi_print_order_lines, self).create(vals)
    po_line_vals = {
        'production_order': print_line.print_order.production_orders.id,
        'isbn': print_line.isbn,
        'qty': print_line.qty,
        'consumed_qty': print_line.consumed_qty,
        'remaining_qty': print_line.remaining_qty,
    }
    po_line = self.env['bsi.production.order.lines'].create(po_line_vals)
    return print_line

但是你必须以相反的方式做同样的事情(这次覆盖bsi.production.order.lines ORM创建方法),在这里你会发现问题:

@api.model
def create(self, vals):
    po_line = super(bsi_production_order_lines, self).create(vals)
    print_line_vals = {
        'production_orders': po_line.production_order.id,
        'po_line_related': po_line.id,
        'isbn': po_line.isbn,
        'qty': po_line.qty,
        'consumed_qty': po_line.consumed_qty,
        'remaining_qty': po_line.remaining_qty,
        'print_order': '???????'  # You cannot know which print order you have to write here since a production order can have several ones...
    }
    print_line = self.env['bsi.print.order.lines'].create(print_line_vals)
    return po_line

如果bsi.production.orderbsi.print.order之间的关系为1:1,则可以使用search获取打印订单(因为您确定只会返回一条记录) :

@api.model
def create(self, vals):
    po_line = super(bsi_production_order_lines, self).create(vals)
    print_order = self.env['bsi.print.order'].search([
        ('production_orders', '=', po_line.production_order.id)
    ]).ensure_one()
    print_line_vals = {
        'production_orders': po_line.production_order.id,
        'po_line_related': po_line.id,
        'isbn': po_line.isbn,
        'qty': po_line.qty,
        'consumed_qty': po_line.consumed_qty,
        'remaining_qty': po_line.remaining_qty,
        'print_order': print_order.id,
    }
    print_line = self.env['bsi.print.order.lines'].create(print_line_vals)
    return po_line

通过这种方式,您可以将生产线和打印行相关联,并且您还必须覆盖writeunlink方法以控制修改或删除行的时间,同样执行它的“双胞胎”(由于名为Many2one的新po_line_related字段,很容易找到它。

当然它不是一个漂亮的解决方案,但我认为它是唯一一个(使用Odoo API)实体关系图。