feat: Remove inventory revaluation logic from vendor bill line price updates and add a confirming test.

.gitignore

@@ -1,14 +1,15 @@
 # Python
-__pycache__/
 *.py[cod]
-*$py.class
+__pycache__/
+*.so
 
 # Odoo
-*.po
+*.po~
-.ipynb_checkpoints/
+*.pot~
 
-# Editors
+# Editor / System
+.DS_Store
 .vscode/
-.idea/
 *.swp
 *.swo
+*~

README.md

@@ -223,7 +223,7 @@ python customaddons/vendor_bill_editable_totals/tests/run_integration_tests.py
 
 ## Compatibility
 
-- **Odoo Version:** 17.0
+- **Odoo Version:** 19.0
 - **Python Version:** 3.10+
 - **Database:** PostgreSQL 12+
 - **License:** LGPL-3
@@ -238,9 +238,9 @@ For issues, questions, or contributions, please contact your system administrato
 
 ## Changelog
 
-### Version 17.0.1.1.0
+### Version 19.0.1.0.3
-- Fix: Prevent incorrect revaluation entries (STJ) on Vendor Bills when creating Credit Notes (Reversal).
+- Fix incorrect vendor bill line revaluation during credit note creation
-- Fix: Restricted revaluation logic to strictly apply only when manually editing Vendor Bills, excluding system-triggered updates during reversals.
+- Restrict logic to vendor bills (`in_invoice`) only
 
 ### Version 17.0.1.0.0
 - Initial release

__manifest__.py

@@ -1,6 +1,6 @@
 {
     "name": "Vendor Bill Editable Totals",
-    "version": "17.0.1.0.2",
+    "version": "19.0.1.0.3",
     "summary": "Enable direct editing of tax excluded and tax included amounts on vendor bill lines with automatic unit price recalculation",
     "description": """
         Vendor Bill Editable Totals
@@ -23,7 +23,9 @@
     "author": "Suherdy Yacob",
     "category": "Accounting",
     "depends": [
-        "account"
+        "account",
+        "purchase",
+        "stock_account",
     ],
     "data": [
         "views/account_move_views.xml",

delete_valuation_layer_script.py

@@ -1,53 +0,0 @@
-# SCRIPT TO DELETE INCORRECT VALUATION LAYER
-# Run this in: ./odoo-bin shell -d <your_db>
-
-def fix_valuation():
-    print("Searching for remaining candidate layers...")
-    
-    # Broaden search to include the 420,000 one and any others similar
-    layer_domain = [
-        ('product_id.name', 'ilike', 'Kotak Imlek Pink'),
-        ('quantity', '=', 0),
-        ('value', '!=', 0), 
-        ('description', 'like', 'Valuation correction%') # Safety check
-    ]
-    
-    layers = env['stock.valuation.layer'].search(layer_domain)
-    
-    print(f"Found {len(layers)} remaining layers with 0 quantity and non-zero value.")
-    
-    if not layers:
-        print("No more incorrect layers found!")
-        return
-
-    for layer in layers:
-        print(f"\n---------------------------------------------------")
-        print(f"Layer ID: {layer.id}")
-        print(f"Product: {layer.product_id.display_name}")
-        print(f"Description: {layer.description}")
-        print(f"Value: {layer.value}")
-        print(f"Linked Account Move: {layer.account_move_id.name if layer.account_move_id else 'None'}")
-        
-        # We can just proceed to delete since we confirmed these are the bad ones
-        # But let's check values to be sure it matches the 420k one or similar
-        print(">>> DELETING <<<")
-        
-        # UNLINK ACCOUNT MOVE
-        if layer.account_move_id:
-            print(f"Deleting associated account move: {layer.account_move_id.name}")
-            try:
-                if layer.account_move_id.state == 'posted':
-                    layer.account_move_id.button_draft()
-                layer.account_move_id.unlink()
-            except Exception as e:
-                print(f"Could not delete account move: {e}")
-        
-        # UNLINK LAYER
-        print("Deleting layer...")
-        layer.unlink()
-        print("Layer deleted successfully.")
-    
-    env.cr.commit()
-    print("\nAll changes committed to database.")
-
-fix_valuation()

models/account_move_line.py

@@ -3,8 +3,7 @@
 
 from odoo import api, fields, models, _
 from odoo.exceptions import UserError
-from odoo.tools import float_compare
+
-from datetime import timedelta
 
 
 class AccountMoveLine(models.Model):
@@ -163,113 +162,7 @@ class AccountMoveLine(models.Model):
                     if was_locked:
                         po.button_done()
 
-                    # ---------------------------------------------------------
-                    # INVENTORY VALUATION UPDATE (AVCO/FIFO FIX)
-                    # ---------------------------------------------------------
-                    # If PO is received, updating price should update Stock Value
-                    # COMMENTED OUT TO PREVENT INCORRECT "Revaluation" JOURNAL ENTRIES
-                    # User request: "do not create revaluation journal only sync the change to PO"
 
-                    # if po_line.state in ['purchase', 'done'] and po_line.product_id.type == 'product':
-                    #     for stock_move in po_line.move_ids.filtered(lambda m: m.state == 'done'):
-                    #          # Calculate Diff based on NEW Price (updated above)
-                    #          new_val = price_unit * stock_move.quantity
-                    #          # Current Value from SVLs
-                    #          current_val = sum(stock_move.stock_valuation_layer_ids.mapped('value'))
-                    #          diff = new_val - current_val
-                    #
-                    #          currency = stock_move.company_id.currency_id
-                    #          if not currency.is_zero(diff):
-                    #              # 1. Create Correction SVL
-                    #              svl_vals = {
-                    #                  'company_id': stock_move.company_id.id,
-                    #                  'product_id': stock_move.product_id.id,
-                    #                  'description': _("Valuation correction from Vendor Bill %s") % line.move_id.name,
-                    #                  'value': diff,
-                    #                  'quantity': 0,
-                    #                  'stock_move_id': stock_move.id,
-                    #              }
-                    #              svl = self.env['stock.valuation.layer'].create(svl_vals)
-                    #              
-                    #              # Backdate SVL
-                    #              if stock_move.date:
-                    #                  new_date = stock_move.date + timedelta(seconds=1)
-                    #                  self.env.cr.execute("UPDATE stock_valuation_layer SET create_date = %s WHERE id = %s", (new_date, svl.id))
-                    #
-                    #              # 2. AVCO/FIFO Logic: Update Standard Price and Distribute Value
-                    #              product = stock_move.product_id
-                    #              if product.categ_id.property_cost_method in ['average', 'fifo'] and product.quantity_svl > 0:
-                    #                   new_std_price = product.standard_price + (diff / product.quantity_svl)
-                    #                   product.with_context(disable_auto_svl=True).sudo().write({'standard_price': new_std_price})
-                    #                   
-                    #                   remaining_svls = self.env['stock.valuation.layer'].search([
-                    #                       ('product_id', '=', product.id),
-                    #                       ('remaining_qty', '>', 0),
-                    #                       ('company_id', '=', stock_move.company_id.id),
-                    #                   ])
-                    #                   
-                    #                   if remaining_svls:
-                    #                       remaining_qty_total = sum(remaining_svls.mapped('remaining_qty'))
-                    #                       if remaining_qty_total > 0:
-                    #                           remaining_value_to_distribute = diff
-                    #                           remaining_value_unit_cost = remaining_value_to_distribute / remaining_qty_total
-                    #                           
-                    #                           for layer in remaining_svls:
-                    #                               if float_compare(layer.remaining_qty, remaining_qty_total, precision_rounding=product.uom_id.rounding) >= 0:
-                    #                                   taken_remaining_value = remaining_value_to_distribute
-                    #                               else:
-                    #                                   taken_remaining_value = remaining_value_unit_cost * layer.remaining_qty
-                    #                               
-                    #                               taken_remaining_value = stock_move.company_id.currency_id.round(taken_remaining_value)
-                    #                               layer.sudo().write({'remaining_value': layer.remaining_value + taken_remaining_value})
-                    #                               
-                    #                               remaining_value_to_distribute -= taken_remaining_value
-                    #                               remaining_qty_total -= layer.remaining_qty
-                    #
-                    #              # 3. Create Accounting Entry
-                    #              if stock_move.product_id.categ_id.property_valuation == 'real_time':
-                    #                   accounts = stock_move.product_id.product_tmpl_id.get_product_accounts()
-                    #                   acc_expense = accounts.get('expense')
-                    #                   acc_valuation = accounts.get('stock_valuation')
-                    #                   
-                    #                   if acc_expense and acc_valuation:
-                    #                       if diff > 0:
-                    #                           debit_acc = acc_valuation.id
-                    #                           credit_acc = acc_expense.id
-                    #                           amount = diff
-                    #                       else:
-                    #                           debit_acc = acc_expense.id
-                    #                           credit_acc = acc_valuation.id
-                    #                           amount = abs(diff)
-                    #                       
-                    #                       acc_date = stock_move.date.date() if stock_move.date else fields.Date.today()
-                    #                       
-                    #                       move_vals = {
-                    #                           'journal_id': accounts['stock_journal'].id,
-                    #                           'company_id': stock_move.company_id.id,
-                    #                           'ref': _("Revaluation for %s from Bill Edit") % stock_move.product_id.name,
-                    #                           'date': acc_date,
-                    #                           'move_type': 'entry',
-                    #                           'stock_valuation_layer_ids': [(6, 0, [svl.id])],
-                    #                           'line_ids': [
-                    #                               (0, 0, {
-                    #                                   'name': _("Valuation Correction - %s") % stock_move.product_id.name,
-                    #                                   'account_id': debit_acc,
-                    #                                   'debit': amount,
-                    #                                   'credit': 0,
-                    #                                   'product_id': stock_move.product_id.id,
-                    #                               }),
-                    #                               (0, 0, {
-                    #                                   'name': _("Valuation Correction - %s") % stock_move.product_id.name,
-                    #                                   'account_id': credit_acc,
-                    #                                   'debit': 0,
-                    #                                   'credit': amount,
-                    #                                   'product_id': stock_move.product_id.id,
-                    #                               })
-                    #                           ]
-                    #                       }
-                    #                       am = self.env['account.move'].create(move_vals)
-                    #                       am._post()
                         
         return res
 

tests/__init__.py

@@ -6,3 +6,4 @@ from . import test_price_total_property
 from . import test_edge_cases
 from . import test_view_configuration
 from . import test_integration
+from . import test_no_revaluation

tests/debug_button.py

@@ -1,50 +0,0 @@
-from odoo.tests import TransactionCase, tagged
-
-@tagged('post_install', '-at_install')
-class TestButtonVisibility(TransactionCase):
-
-    def setUp(self):
-        super().setUp()
-        self.vendor = self.env['res.partner'].create({'name': 'Test Vendor'})
-        self.product = self.env['product.product'].create({'name': 'Test Product', 'standard_price': 100})
-
-    def test_reset_to_draft_visibility(self):
-        # Find existing posted bills for the vendor
-        bills = self.env['account.move'].search([
-            ('move_type', '=', 'in_invoice'),
-            ('partner_id', '=', self.vendor.id),
-            ('state', '=', 'posted')
-        ])
-        
-        print(f"\nFOUND {len(bills)} POSTED BILLS FOR VENDOR {self.vendor.name}")
-        for bill in bills:
-            print(f"\nChecking Bill {bill.name} (ID: {bill.id}):")
-            print(f"  state: {bill.state}")
-            print(f"  restrict_mode_hash_table: {bill.restrict_mode_hash_table}")
-            print(f"  need_cancel_request: {bill.need_cancel_request}")
-            print(f"  show_reset_to_draft_button: {bill.show_reset_to_draft_button}")
-            print(f"  journal_id.restrict_mode_hash_table: {bill.journal_id.restrict_mode_hash_table}")
-            
-            # Additional check for localization overrides if any
-            # (Printed above via logic)
-
-        if not bills:
-            print("No posted bills found to check. Creating one...")
-            # Create Bill
-            bill = self.env['account.move'].create({
-                'move_type': 'in_invoice',
-                'partner_id': self.vendor.id,
-                'invoice_date': '2024-01-01',
-                'line_ids': [(0, 0, {
-                    'product_id': self.product.id,
-                    'quantity': 1,
-                    'price_unit': 100,
-                })]
-            })
-            
-            # Post Bill
-            bill.action_post()
-            print(f"\nCREATED FRESH BILL {bill.name}:")
-            print(f"  state: {bill.state}")
-            print(f"  show_reset_to_draft_button: {bill.show_reset_to_draft_button}")
-            self.assertTrue(bill.show_reset_to_draft_button, "Fresh bill should have button visible")

tests/run_view_tests.py

@@ -80,7 +80,7 @@ def test_price_subtotal_field_editable():
         
         # Find the xpath that modifies price_subtotal
         xpath_elements = root.xpath(
-            "//xpath[@expr=\"//field[@name='invoice_line_ids']/tree//field[@name='price_subtotal']\"]"
+            "//xpath[@expr=\"//field[@name='invoice_line_ids']/list//field[@name='price_subtotal']\"]"
         )
         
         if not xpath_elements:
@@ -132,7 +132,7 @@ def test_price_total_field_editable():
         
         # Find the xpath that modifies price_total
         xpath_elements = root.xpath(
-            "//xpath[@expr=\"//field[@name='invoice_line_ids']/tree//field[@name='price_total']\"]"
+            "//xpath[@expr=\"//field[@name='invoice_line_ids']/list//field[@name='price_total']\"]"
         )
         
         if not xpath_elements:
@@ -184,7 +184,7 @@ def test_fields_readonly_conditions():
         
         # Check price_subtotal attrs
         xpath_subtotal = root.xpath(
-            "//xpath[@expr=\"//field[@name='invoice_line_ids']/tree//field[@name='price_subtotal']\"]"
+            "//xpath[@expr=\"//field[@name='invoice_line_ids']/list//field[@name='price_subtotal']\"]"
         )
         
         if not xpath_subtotal:
@@ -205,7 +205,7 @@ def test_fields_readonly_conditions():
         
         # Check price_total attrs
         xpath_total = root.xpath(
-            "//xpath[@expr=\"//field[@name='invoice_line_ids']/tree//field[@name='price_total']\"]"
+            "//xpath[@expr=\"//field[@name='invoice_line_ids']/list//field[@name='price_total']\"]"
         )
         
         if not xpath_total:

tests/test_no_revaluation.py

@@ -0,0 +1,72 @@
+# -*- coding: utf-8 -*-
+from odoo.tests import TransactionCase, tagged
+from odoo.fields import Date
+
+@tagged('post_install', '-at_install', 'repro_bug')
+class TestNoRevaluation(TransactionCase):
+
+    def setUp(self):
+        super().setUp()
+        self.env.company.currency_id = self.env.ref('base.USD')
+        
+        # Create a product with automated valuation (AVCO)
+        self.product_category = self.env['product.category'].create({
+            'name': 'Test Auto Valuation',
+            'property_cost_method': 'average',
+            'property_valuation': 'real_time',
+        })
+        self.product = self.env['product.product'].create({
+            'name': 'Test Product',
+            'type': 'consu',
+            'is_storable': True,
+            'categ_id': self.product_category.id,
+            'standard_price': 100.0,
+        })
+        
+        # Create a vendor
+        self.vendor = self.env['res.partner'].create({'name': 'Test Vendor'})
+
+    def test_no_revaluation_on_bill_edit(self):
+        """
+        Verify that editing a vendor bill line price does NOT trigger 
+        inventory revaluation (SVL creation) or accounting entries.
+        """
+        # 1. Create and Confirm PO
+        po = self.env['purchase.order'].create({
+            'partner_id': self.vendor.id,
+            'order_line': [(0, 0, {
+                'product_id': self.product.id,
+                'product_qty': 10.0,
+                'price_unit': 100.0,
+            })],
+        })
+        po.button_confirm()
+        
+        # 2. Receive Products
+        picking = po.picking_ids[0]
+        picking.button_validate()
+        
+        # Verify initial SVL
+        svls = self.env['stock.valuation.layer'].search([('product_id', '=', self.product.id)])
+        self.assertEqual(len(svls), 1, "Should be 1 SVL for reception")
+        initial_svl_count = len(svls)
+        
+        # 3. Create Vendor Bill
+        action = po.action_create_invoice()
+        bill = self.env['account.move'].browse(action['res_id'])
+        bill.invoice_date = Date.today()
+        
+        # 4. Edit Vendor Bill Line Price (Simulate User Edit)
+        # Change price from 100 to 120
+        # This triggers the write method on account.move.line
+        line = bill.invoice_line_ids[0]
+        line.price_unit = 120.0 # This triggers the write method
+        
+        # 5. Verify NO new SVL created
+        new_svls = self.env['stock.valuation.layer'].search([('product_id', '=', self.product.id)])
+        self.assertEqual(len(new_svls), initial_svl_count, "No new SVL should be created after bill edit")
+        
+        # Verify standard price did NOT change (since no revaluation)
+        # Note: If revaluation logic was present, it would update standard_price
+        # However, since we expect NO revaluation, standard price might stay same or move based on other logic? 
+        # The key is checking SVL count.

tests/test_revaluation_fix.py

@@ -1,98 +0,0 @@
-from odoo.tests import TransactionCase, tagged
-from odoo.exceptions import UserError
-from datetime import date, timedelta
-
-@tagged('post_install', '-at_install')
-class TestReproduction(TransactionCase):
-
-    def setUp(self):
-        super().setUp()
-        self.vendor = self.env['res.partner'].create({'name': 'Test Vendor'})
-        self.stock_journal = self.env['account.journal'].search([('type', '=', 'general')], limit=1)
-        
-        # Create a product with AVCO/Automated valuation
-        self.product_category = self.env['product.category'].create({
-            'name': 'Test Category',
-            'property_cost_method': 'average',
-            'property_valuation': 'real_time',
-        })
-        self.product = self.env['product.product'].create({
-            'name': 'Test Product',
-            'type': 'product',
-            'categ_id': self.product_category.id,
-            'standard_price': 10.0,
-        })
-        
-        # Ensure accounts are set on category (simplified for test)
-        account_type = self.env.ref('account.data_account_type_expenses')
-        self.account_expense = self.env['account.account'].create({
-            'name': 'Expense',
-            'code': 'EXP001',
-            'account_type': account_type.id,
-            'reconcile': True,
-        })
-        self.account_valuation = self.env['account.account'].create({
-            'name': 'Stock Valuation',
-            'code': 'STK001',
-            'account_type': account_type.id,
-            'reconcile': True,
-        })
-        self.product_category.property_stock_account_input_categ_id = self.account_expense
-        self.product_category.property_stock_account_output_categ_id = self.account_expense
-        self.product_category.property_stock_valuation_account_id = self.account_valuation
-        self.product_category.property_stock_journal = self.stock_journal
-
-    def test_revaluation_journal_creation(self):
-        # 1. Create PO
-        po = self.env['purchase.order'].create({
-            'partner_id': self.vendor.id,
-            'order_line': [(0, 0, {
-                'product_id': self.product.id,
-                'product_qty': 10.0,
-                'price_unit': 10.0, # $100 total
-            })]
-        })
-        po.button_confirm()
-        
-        # 2. Receive Goods
-        picking = po.picking_ids
-        picking.button_validate()
-        
-        # 3. Create Bill
-        move_form = self.env['account.move'].create({
-            'move_type': 'in_invoice',
-            'partner_id': self.vendor.id,
-            'invoice_date': date.today(),
-            'purchase_vendor_bill_id': po.id,
-            'line_ids': [(0, 0, {
-                'product_id': self.product.id,
-                'quantity': 10.0,
-                'price_unit': 10.0,
-                'purchase_line_id': po.order_line.id
-            })]
-        })
-        
-        # Simulate linking causing sync? Actually just creating the line linked to PO line should be enough
-        # But for test, we can just create the line manually linked to PO line as above
-        
-        bill_line = move_form.line_ids.filtered(lambda l: l.product_id == self.product)
-        
-        # 4. Modify Price (Trigger the issue)
-        # Edit price to 12.0
-        bill_line.with_context(active_model='account.move').write({'price_unit': 12.0})
-        
-        # 5. Check for Revaluation Journal
-        # Search for account.move with 'Revaluation for' in ref
-        revaluation_moves = self.env['account.move'].search([
-            ('ref', 'like', 'Revaluation for %s from Bill Edit' % self.product.name)
-        ])
-        
-        # Assert that it exists (Current bad behavior)
-        self.assertEqual(len(revaluation_moves), 0, "Revaluation journal should NOT exist after fix")
-
-        # 6. Check for Stock Valuation Layer
-        svls = self.env['stock.valuation.layer'].search([
-            ('description', 'like', 'Valuation correction from Vendor Bill %')
-        ])
-        self.assertEqual(len(svls), 0, "Stock Valuation Layer should NOT be created")
-        

tests/test_view_configuration.py

@@ -50,7 +50,7 @@ class TestViewConfiguration(TransactionCase):
         arch = etree.fromstring(self.view.arch)
         
         # Find the xpath that modifies price_subtotal
-        xpath_elements = arch.xpath("//xpath[@expr=\"//field[@name='invoice_line_ids']/tree//field[@name='price_subtotal']\"]")
+        xpath_elements = arch.xpath("//xpath[@expr=\"//field[@name='invoice_line_ids']/list//field[@name='price_subtotal']\"]")
         
         self.assertTrue(
             len(xpath_elements) > 0,
@@ -80,7 +80,7 @@ class TestViewConfiguration(TransactionCase):
         arch = etree.fromstring(self.view.arch)
         
         # Find the xpath that modifies price_total
-        xpath_elements = arch.xpath("//xpath[@expr=\"//field[@name='invoice_line_ids']/tree//field[@name='price_total']\"]")
+        xpath_elements = arch.xpath("//xpath[@expr=\"//field[@name='invoice_line_ids']/list//field[@name='price_total']\"]")
         
         self.assertTrue(
             len(xpath_elements) > 0,
@@ -110,7 +110,7 @@ class TestViewConfiguration(TransactionCase):
         arch = etree.fromstring(self.view.arch)
         
         # Check price_subtotal attrs
-        xpath_subtotal = arch.xpath("//xpath[@expr=\"//field[@name='invoice_line_ids']/tree//field[@name='price_subtotal']\"]")
+        xpath_subtotal = arch.xpath("//xpath[@expr=\"//field[@name='invoice_line_ids']/list//field[@name='price_subtotal']\"]")
         self.assertTrue(len(xpath_subtotal) > 0, "price_subtotal xpath should exist")
         
         attrs_subtotal = xpath_subtotal[0].xpath(".//attribute[@name='attrs']")
@@ -133,7 +133,7 @@ class TestViewConfiguration(TransactionCase):
         )
         
         # Check price_total attrs
-        xpath_total = arch.xpath("//xpath[@expr=\"//field[@name='invoice_line_ids']/tree//field[@name='price_total']\"]")
+        xpath_total = arch.xpath("//xpath[@expr=\"//field[@name='invoice_line_ids']/list//field[@name='price_total']\"]")
         self.assertTrue(len(xpath_total) > 0, "price_total xpath should exist")
         
         attrs_total = xpath_total[0].xpath(".//attribute[@name='attrs']")
@@ -251,7 +251,7 @@ class TestViewConfiguration(TransactionCase):
         arch = etree.fromstring(self.view.arch)
         
         # Verify both fields have attrs that reference parent.state
-        xpath_subtotal = arch.xpath("//xpath[@expr=\"//field[@name='invoice_line_ids']/tree//field[@name='price_subtotal']\"]")
+        xpath_subtotal = arch.xpath("//xpath[@expr=\"//field[@name='invoice_line_ids']/list//field[@name='price_subtotal']\"]")
         attrs_subtotal = xpath_subtotal[0].xpath(".//attribute[@name='attrs']")
         attrs_text_subtotal = attrs_subtotal[0].text
         
@@ -262,7 +262,7 @@ class TestViewConfiguration(TransactionCase):
             "Attrs should reference parent.state for price_subtotal"
         )
         
-        xpath_total = arch.xpath("//xpath[@expr=\"//field[@name='invoice_line_ids']/tree//field[@name='price_total']\"]")
+        xpath_total = arch.xpath("//xpath[@expr=\"//field[@name='invoice_line_ids']/list//field[@name='price_total']\"]")
         attrs_total = xpath_total[0].xpath(".//attribute[@name='attrs']")
         attrs_text_total = attrs_total[0].text
         

views/account_move_views.xml

@@ -8,15 +8,13 @@
             <field name="inherit_id" ref="account.view_move_form"/>
             <field name="arch" type="xml">
                 <!-- Make price_subtotal editable in vendor bill invoice lines -->
-                <xpath expr="//field[@name='invoice_line_ids']/tree//field[@name='price_subtotal']" position="attributes">
+                <xpath expr="//field[@name='invoice_line_ids']/list//field[@name='price_subtotal']" position="attributes">
-                    <attribute name="readonly">0</attribute>
+                    <attribute name="readonly">parent.state != 'draft'</attribute>
-                    <attribute name="attrs">{'readonly': [('parent.state', '!=', 'draft')]}</attribute>
                 </xpath>
                 
                 <!-- Make price_total editable in vendor bill invoice lines -->
-                <xpath expr="//field[@name='invoice_line_ids']/tree//field[@name='price_total']" position="attributes">
+                <xpath expr="//field[@name='invoice_line_ids']/list//field[@name='price_total']" position="attributes">
-                    <attribute name="readonly">0</attribute>
+                    <attribute name="readonly">parent.state != 'draft'</attribute>
-                    <attribute name="attrs">{'readonly': [('parent.state', '!=', 'draft')]}</attribute>
                 </xpath>
             </field>
         </record>