odoo - odoo中如何将一个字段的值复制到另一个字段？

Question

我在product.template模块中创建了一个自定义字段折扣，现在我想将其复制并分配给销售模块中的折扣字段。我想在发票中输入名称、价格及其折扣值后自动进行折扣。我正在从发票中的创建和编辑选项创建产品。如果我在选择产品后再次为同一产品生成发票，则应自动应用其折扣。我尝试使用从互联网获得的代码之一，它会自动折扣，但产品描述和价格值(value)消失了。折扣是销售模块中的一个字段，x_discount是产品模块中的一个字段，我想将x_discount值复制到折扣，因为它们位于不同的模块中我发现很难。

dis = self.pool.get('product.template').browse(cr, uid,product,context=context).x_discount
return  {'value': {'discount':dis}}

Answer 1

为此，您必须使用onchange:-

“onchange”机制为客户端界面提供了一种在用户在字段中填写值时更新表单的方法，而无需将任何内容保存到数据库中。

这里已经有product_id的onchange，所以:-

要实现此目的，您必须重写 sale.order.line 中的 product_id_change()。

为此，您必须继承 sale.order.line 对象并通过添加此行来重新定义 product_id_change():- (在定义 product_obj 的行之后)

        result['discount'] = product_obj.x_discount 

如需更多帮助:- 如果您使用的是 v7，请将此代码复制到您的模块 .py 文件中:-

from openerp.tools import DEFAULT_SERVER_DATE_FORMAT
class sale_order_line(osv.osv):
    _inherit = 'sale.order.line'

def product_id_change(self, cr, uid, ids, pricelist, product, qty=0,
        uom=False, qty_uos=0, uos=False, name='', partner_id=False,
        lang=False, update_tax=True, date_order=False, packaging=False, fiscal_position=False, flag=False, context=None):
    context = context or {}
    lang = lang or context.get('lang',False)
    if not  partner_id:
        raise osv.except_osv(_('No Customer Defined!'), _('Before choosing a product,\n select a customer in the sales form.'))
    warning = {}
    product_uom_obj = self.pool.get('product.uom')
    partner_obj = self.pool.get('res.partner')
    product_obj = self.pool.get('product.product')
    context = {'lang': lang, 'partner_id': partner_id}
    if partner_id:
        lang = partner_obj.browse(cr, uid, partner_id).lang
    context_partner = {'lang': lang, 'partner_id': partner_id}

    if not product:
        return {'value': {'th_weight': 0,
            'product_uos_qty': qty}, 'domain': {'product_uom': [],
               'product_uos': []}}
    if not date_order:
        date_order = time.strftime(DEFAULT_SERVER_DATE_FORMAT)

    result = {}
    warning_msgs = ''
    product_obj = product_obj.browse(cr, uid, product, context=context_partner) # product_obj definition

    result['discount'] = product_obj.x_discount # modification

    uom2 = False
    if uom:
        uom2 = product_uom_obj.browse(cr, uid, uom)
        if product_obj.uom_id.category_id.id != uom2.category_id.id:
            uom = False
    if uos:
        if product_obj.uos_id:
            uos2 = product_uom_obj.browse(cr, uid, uos)
            if product_obj.uos_id.category_id.id != uos2.category_id.id:
                uos = False
        else:
            uos = False
    fpos = fiscal_position and self.pool.get('account.fiscal.position').browse(cr, uid, fiscal_position) or False
    if update_tax: #The quantity only have changed
        result['tax_id'] = self.pool.get('account.fiscal.position').map_tax(cr, uid, fpos, product_obj.taxes_id)

    if not flag:
        result['name'] = self.pool.get('product.product').name_get(cr, uid, [product_obj.id], context=context_partner)[0][1]
        if product_obj.description_sale:
            result['name'] += '\n'+product_obj.description_sale
    domain = {}
    if (not uom) and (not uos):
        result['product_uom'] = product_obj.uom_id.id
        if product_obj.uos_id:
            result['product_uos'] = product_obj.uos_id.id
            result['product_uos_qty'] = qty * product_obj.uos_coeff
            uos_category_id = product_obj.uos_id.category_id.id
        else:
            result['product_uos'] = False
            result['product_uos_qty'] = qty
            uos_category_id = False
        result['th_weight'] = qty * product_obj.weight
        domain = {'product_uom':
                    [('category_id', '=', product_obj.uom_id.category_id.id)],
                    'product_uos':
                    [('category_id', '=', uos_category_id)]}
    elif uos and not uom: # only happens if uom is False
        result['product_uom'] = product_obj.uom_id and product_obj.uom_id.id
        result['product_uom_qty'] = qty_uos / product_obj.uos_coeff
        result['th_weight'] = result['product_uom_qty'] * product_obj.weight
    elif uom: # whether uos is set or not
        default_uom = product_obj.uom_id and product_obj.uom_id.id
        q = product_uom_obj._compute_qty(cr, uid, uom, qty, default_uom)
        if product_obj.uos_id:
            result['product_uos'] = product_obj.uos_id.id
            result['product_uos_qty'] = qty * product_obj.uos_coeff
        else:
            result['product_uos'] = False
            result['product_uos_qty'] = qty
        result['th_weight'] = q * product_obj.weight        # Round the quantity up

    if not uom2:
        uom2 = product_obj.uom_id
    # get unit price

    if not pricelist:
        warn_msg = _('You have to select a pricelist or a customer in the sales form !\n'
                'Please set one before choosing a product.')
        warning_msgs += _("No Pricelist ! : ") + warn_msg +"\n\n"
    else:
        price = self.pool.get('product.pricelist').price_get(cr, uid, [pricelist],
                product, qty or 1.0, partner_id, {
                    'uom': uom or result.get('product_uom'),
                    'date': date_order,
                    })[pricelist]
        if price is False:
            warn_msg = _("Cannot find a pricelist line matching this product and quantity.\n"
                    "You have to change either the product, the quantity or the pricelist.")

            warning_msgs += _("No valid pricelist line found ! :") + warn_msg +"\n\n"
        else:
            result.update({'price_unit': price})
    if warning_msgs:
        warning = {
                   'title': _('Configuration Error!'),
                   'message' : warning_msgs
                }
    return {'value': result, 'domain': domain, 'warning': warning}

详细步骤:-

我们正在为此创建我们自己的自定义模块(这是最好和推荐的方式):-

创建一个名为“product_custom”的文件夹，其中包含以下文件:-

__init__.py
__openerp__.py
product_custom.py
product_custom_view.xml

初始化文件内容:-

import product_custom

openerp 文件内容:-

{
'name': "Product Customization",
'version': '1.0',
'depends': ['base','product','sale'],
'author': "Baiju KS",
'category': 'Customization',
'description': """
Module used to add discount to product.
""",
# data files always loaded at installation
'data': [
    'product_custom_view.xml',
],
'installable': True,
'auto_install': False,         }

产品自定义文件:

from openerp.osv import fields, osv
from openerp import SUPERUSER_ID
from openerp.tools import DEFAULT_SERVER_DATE_FORMAT
import time
class product_template(osv.osv):
    _inherit = "product.template"
    _columns = {
        'x_discount': fields.float('Discount(%)'),
    }



class sale_order_line(osv.osv):
    _inherit = 'sale.order.line'

def product_id_change(self, cr, uid, ids, pricelist, product, qty=0,
        uom=False, qty_uos=0, uos=False, name='', partner_id=False,
        lang=False, update_tax=True, date_order=False, packaging=False, fiscal_position=False, flag=False, context=None):
    context = context or {}
    lang = lang or context.get('lang', False)
    if not partner_id:
        raise osv.except_osv(_('No Customer Defined!'), _('Before choosing a product,\n select a customer in the sales form.'))
    warning = False
    product_uom_obj = self.pool.get('product.uom')
    partner_obj = self.pool.get('res.partner')
    product_obj = self.pool.get('product.product')
    partner = partner_obj.browse(cr, uid, partner_id)
    lang = partner.lang
    context_partner = context.copy()
    context_partner.update({'lang': lang, 'partner_id': partner_id})

    if not product:
        return {'value': {'th_weight': 0,
            'product_uos_qty': qty}, 'domain': {'product_uom': [],
               'product_uos': []}}
    if not date_order:
        date_order = time.strftime(DEFAULT_SERVER_DATE_FORMAT)

    result = {}
    warning_msgs = ''
    product_obj = product_obj.browse(cr, uid, product, context=context_partner)

    result['discount'] = product_obj.x_discount # modification

    uom2 = False
    if uom:
        uom2 = product_uom_obj.browse(cr, uid, uom)
        if product_obj.uom_id.category_id.id != uom2.category_id.id:
            uom = False
    if uos:
        if product_obj.uos_id:
            uos2 = product_uom_obj.browse(cr, uid, uos)
            if product_obj.uos_id.category_id.id != uos2.category_id.id:
                uos = False
        else:
            uos = False

    fpos = False
    if not fiscal_position:
        fpos = partner.property_account_position or False
    else:
        fpos = self.pool.get('account.fiscal.position').browse(cr, uid, fiscal_position)
    if update_tax: #The quantity only have changed
        # The superuser is used by website_sale in order to create a sale order. We need to make
        # sure we only select the taxes related to the company of the partner. This should only
        # apply if the partner is linked to a company.
        if uid == SUPERUSER_ID and context.get('company_id'):
            taxes = product_obj.taxes_id.filtered(lambda r: r.company_id.id == context['company_id'])
        else:
            taxes = product_obj.taxes_id
        result['tax_id'] = self.pool.get('account.fiscal.position').map_tax(cr, uid, fpos, taxes)

    if not flag:
        result['name'] = self.pool.get('product.product').name_get(cr, uid, [product_obj.id], context=context_partner)[0][1]
        if product_obj.description_sale:
            result['name'] += '\n'+product_obj.description_sale
    domain = {}
    if (not uom) and (not uos):
        result['product_uom'] = product_obj.uom_id.id
        if product_obj.uos_id:
            result['product_uos'] = product_obj.uos_id.id
            result['product_uos_qty'] = qty * product_obj.uos_coeff
            uos_category_id = product_obj.uos_id.category_id.id
        else:
            result['product_uos'] = False
            result['product_uos_qty'] = qty
            uos_category_id = False
        result['th_weight'] = qty * product_obj.weight
        domain = {'product_uom':
                    [('category_id', '=', product_obj.uom_id.category_id.id)],
                    'product_uos':
                    [('category_id', '=', uos_category_id)]}
    elif uos and not uom: # only happens if uom is False
        result['product_uom'] = product_obj.uom_id and product_obj.uom_id.id
        result['product_uom_qty'] = qty_uos / product_obj.uos_coeff
        result['th_weight'] = result['product_uom_qty'] * product_obj.weight
    elif uom: # whether uos is set or not
        default_uom = product_obj.uom_id and product_obj.uom_id.id
        q = product_uom_obj._compute_qty(cr, uid, uom, qty, default_uom)
        if product_obj.uos_id:
            result['product_uos'] = product_obj.uos_id.id
            result['product_uos_qty'] = qty * product_obj.uos_coeff
        else:
            result['product_uos'] = False
            result['product_uos_qty'] = qty
        result['th_weight'] = q * product_obj.weight        # Round the quantity up

    if not uom2:
        uom2 = product_obj.uom_id
    # get unit price

    if not pricelist:
        warn_msg = _('You have to select a pricelist or a customer in the sales form !\n'
                'Please set one before choosing a product.')
        warning_msgs += _("No Pricelist ! : ") + warn_msg +"\n\n"
    else:
        ctx = dict(
            context,
            uom=uom or result.get('product_uom'),
            date=date_order,
        )
        price = self.pool.get('product.pricelist').price_get(cr, uid, [pricelist],
                product, qty or 1.0, partner_id, ctx)[pricelist]
        if price is False:
            warn_msg = _("Cannot find a pricelist line matching this product and quantity.\n"
                    "You have to change either the product, the quantity or the pricelist.")

            warning_msgs += _("No valid pricelist line found ! :") + warn_msg +"\n\n"
        else:
            if update_tax:
                price = self.pool['account.tax']._fix_tax_included_price(cr, uid, price, taxes, result['tax_id'])
            result.update({'price_unit': price})
            if context.get('uom_qty_change', False):
                values = {'price_unit': price}
                if result.get('product_uos_qty'):
                    values['product_uos_qty'] = result['product_uos_qty']
                return {'value': values, 'domain': {}, 'warning': False}
    if warning_msgs:
        warning = {
                   'title': _('Configuration Error!'),
                   'message' : warning_msgs
                }
    return {'value': result, 'domain': domain, 'warning': warning}

product_custom_view 文件:-

<openerp>
<data>
    <record id="product_template_form_view_dis_inherit" model="ir.ui.view">
        <field name="name">product.template.common.form.dis.inherit</field>
        <field name="model">product.template</field>
        <field name="inherit_id" ref="product.product_template_form_view"/>
        <field name="arch" type="xml">
            <xpath expr="/form/sheet/notebook/page[1]/group[1]/group[1]/field[3]" position="after">
                <field name="x_discount" />
            </xpath>
        </field>
    </record> 
</data>

然后将此文件复制到addons文件夹并重新启动服务器，之后更新模块列表并安装自定义模块。

希望这有帮助。