如何从销售模块正确继承 class 并更改字段

Question

我正在尝试继承 "sale" 模块并使用我自己的产品 class。所以我创建了这个 class:

class mymodule_product(models.Model):
    _name = "mymodule.product"
    _description = "mymodule Product Description"

    name = fields.Char('Description', required= True)
    code = fields.Integer('Code', required= True)
    category_id = fields.Many2one('mymodule.category','Category')

然后我创建了另一个 class，其中包含我要将其添加到销售订单行的字段：

class mymoduleSaleOrder(models.Model):
    _name = 'mymodule.sale.order'   
    mymodule_product_id = fields.Many2one('mymodule.product', string='Products', required=True)

然后我创建了这个 xml 代码：

<record id="mymodule_sale_order_form_view" model="ir.ui.view">
        <field name="name">mymodule.sale_order.form.view</field>
        <field name="model">mymodule.sale.order</field>
        <field name="inherit_id" ref="sale.view_order_form"/>
        <field name="arch" type="xml">
            <field name="product_id" position="replace">
                <field name="mymodule_product_id" />
            </field>
        </field>
    </record>

我将此代码添加到 manifest.py:

'depends': ['base', 'sale'],

当我升级我的模块时出现这个错误：

File "..\odoo\addons\base\ir\ir_ui_view.py", line 380, in write
return super(View, self).write(self._compute_defaults(vals))
File "..\odoo\models.py", line 3557, in write
self._write(old_vals)
File "..\odoo\models.py", line 3708, in _write
self._validate_fields(vals)
File "..\odoo\models.py", line 1079, in _validate_fields
raise ValidationError("%s\n\n%s" % (_("Error while validating constraint"), tools.ustr(e)))
ParseError: "Error while validating constraint

Field `origin` does not exist

Error context:
View `mymodule.sale_order.form.view`
[view_id: 934, xml_id: n/a, model: mymodule.sale.order, parent_id: 539]
None" while parsing file:.../views/sale_order.xml:4, near
    <record id="mymodule_sale_order_form_view" model="ir.ui.view">
        <field name="name">mymodule.sale_order.form.view</field>
        <field name="model">mymodule.sale.order</field>
        <field name="inherit_id" ref="sale.view_order_form"/>
        <field name="arch" type="xml">
            <field name="product_id" position="replace">
                <field name="mymodule_product_id"/>
            </field>
        </field>
    </record>

当我尝试使用此 python 代码时：

class mymoduleSaleOrder(models.Model):
    _name = 'mymodule.sale.order' 
    _inherit = 'sale.order'  
    mymodule_product_id = fields.Many2one('mymodule.product', string='Products', required=True)

我收到这个错误：

ParseError: "Error while validating constraint

Field `randa_product_id` does not exist

请帮忙。谢谢。

Answer 1

如果我理解您的意思，您想要创建新的自定义 class 产品并替换销售订单行中的旧产品。因此，您的 mymodule.product class 定义明确，但您不必为销售订单或销售订单行创建新的 class，只需继承现有订单即可：

class SaleOrderLine(models.Model):
    _inherit = 'sale.order.line'   

    mymodule_product_id = fields.Many2one(
        comodel_name='mymodule.product',
        string='Products',
        required=True
    )

那么，你的XML代码一定是这样的（我建议你不要替换原来的字段product_id，直接隐藏即可。而且我也建议你使用xpath 因为 product_id 字段在原始视图中出现了几次，如果不这样做，您只会修改最后一个）：

<record id="mymodule_sale_order_form_view" model="ir.ui.view">
    <field name="name">mymodule.sale_order.form.view</field>
    <field name="model">sale.order</field>
    <field name="inherit_id" ref="sale.view_order_form"/>
    <field name="arch" type="xml">
        <xpath expr="//field[@name='order_line']/form//field[@name='product_id']" position="attributes">
            <attribute name="invisible">1</attribute>
        </xpath>
        <xpath expr="//field[@name='order_line']/form//field[@name='product_id']" position="after">
            <field name="mymodule_product_id" />
        </xpath>
        <xpath expr="//field[@name='order_line']/tree/field[@name='product_id']" position="attributes">
            <attribute name="invisible">1</attribute>
        </xpath>
        <xpath expr="//field[@name='order_line']/tree/field[@name='product_id']" position="after">
            <field name="mymodule_product_id" />
        </xpath>
    </field>
</record>

如何从销售模块正确继承 class 并更改字段

How to correctly inherit a class from sale module and change fields

python

xml

inheritance

odoo

odoo-10