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Md. Shah Jalal

I've created a module to add a new field "Shipment Cost" in the purchase order form after "unit price" field. It works successfully, but I cannot update the "subtotal" field value accordingly. the value of "Subtotal" should be (("unit price" x "Quantity") + "Shipment Cost"). Can anybody please help me? The code of the module is as below:

File 1: purchase_shipment.py

from openerp.osv import fields, osv from openerp import netsvc

class purchase_order_line(osv.osv): _name = 'purchase.order.line' _inherit = "purchase.order.line" _columns = { 'shipment_cost': fields.float('Shipment Cost', size=30, store=True), } purchase_order_line()

File 2: purchase_shipment_view.xml

<openerp> <data> <record model="ir.ui.view" id="view_purchase_form1"> <field name="name">purchase.order.form.inherit</field> <field name="model">purchase.order</field> <field name="inherit_id" ref="purchase.purchase_order_form"/> <field name="arch" type="xml"> <xpath expr="//field[@name='order_line']/tree/field[@name='price_unit']" position="after"> <field name="shipment_cost"/> </xpath> </field> </record> </data> </openerp>

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Manish Bohra

hello you are found any solution related this problem ??

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Simplify it!
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Subtotal field is a function field. You have to override that function including your shipment cost. You will find that function before the assignment of the columns in purchase order line class.

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Md. Shah Jalal
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Hi, thank you for ur reply. I found that the field "Subtotal" is calculated using the function "_amount_line" in the original module. below is the code of the function def _amount_line(self, cr, uid, ids, prop, arg, context=None): res = {} cur_obj=self.pool.get('res.currency') tax_obj = self.pool.get('account.tax') for line in self.browse(cr, uid, ids, context=context): taxes = tax_obj.compute_all(cr, uid, line.taxes_id, line.price_unit, line.product_qty, line.product_id, line.order_id.partner_id) cur = line.order_id.pricelist_id.curr

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Md. Shah Jalal
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Hi, thank you for ur reply. I found that the field "Subtotal" is calculated using the function "_amount_line" in the original module. the code of the function is

def _amount_line(self, cr, uid, ids, prop, arg, context=None): res = {} cur_obj=self.pool.get('res.currency') tax_obj = self.pool.get('account.tax') for line in self.browse(cr, uid, ids, context=context): taxes = tax_obj.compute_all(cr, uid, line.taxes_id, line.price_unit, line.product_qty, line.product_id, line.order_id.partner_id) cur = line.order_id.pricelist_id.currency_id res[line.id] = cur_obj.round(cr, uid, cur, taxes['total']) return res

but I cannot understand how can I override this method.

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