[英]How to correctly inherit a class from sale module and change fields
我正在尝试继承“销售”模块,并使用自己的产品类。 因此,我创建了此类:
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')
我创建了另一个类,该类具有要添加到销售订单行中的字段:
class mymoduleSaleOrder(models.Model):
_name = 'mymodule.sale.order'
mymodule_product_id = fields.Many2one('mymodule.product', string='Products', required=True)
然后,我创建了以下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>
我将以下代码添加到清单 .py中:
'depends': ['base', 'sale'],
升级模块时出现以下错误:
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代码代替时:
class mymoduleSaleOrder(models.Model):
_name = 'mymodule.sale.order'
_inherit = 'sale.order'
mymodule_product_id = fields.Many2one('mymodule.product', string='Products', required=True)
我收到此错误:
ParseError: "Error while validating constraint
Field `randa_product_id` does not exist
请帮忙。 谢谢。
如果我对您的了解很好,那么您想创建一种新的自定义产品类别,并替换销售订单行中的旧产品。 因此,您已经很好地定义了mymodule.product
类,但是不必为销售订单或销售订单行创建新的类,只需从现有的类继承即可:
class SaleOrderLine(models.Model):
_inherit = 'sale.order.line'
mymodule_product_id = fields.Many2one(
comodel_name='mymodule.product',
string='Products',
required=True
)
然后,您的XML代码必须是这样的(我建议您不要替换原始字段product_id
,而应将其隐藏。并且我也建议您使用xpath
因为在原始视图中会多次出现product_id
字段,如果您不这样做, 't,您将只修改最后一个):
<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>
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