first commit

__init__.py

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+from . import models

__manifest__.py

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+{
+    'name': 'Sale Order Tracking',
+    'version': '18.0.1.0.0',
+    'category': 'Sales',
+    'summary': 'Track changes in Sale Orders and Lines',
+    'description': """
+        This module tracks:
+        1. Customer changes in Sale Order.
+        2. Product and Quantity changes in Sale Order Lines.
+        3. Addition and Removal of Sale Order Lines.
+    """,
+    'author': 'Antigravity',
+    'depends': ['sale_management'],
+    'data': [],
+    'installable': True,
+    'application': False,
+    'license': 'LGPL-3',
+}

models/__init__.py

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+from . import sale_order
+from . import sale_order_line

models/sale_order.py

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+from odoo import models, fields
+
+class SaleOrder(models.Model):
+    _inherit = 'sale.order'
+
+    partner_id = fields.Many2one(tracking=True)

models/sale_order_line.py

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+from odoo import models, fields, api
+
+class SaleOrderLine(models.Model):
+    _inherit = 'sale.order.line'
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        lines = super(SaleOrderLine, self).create(vals_list)
+        for line in lines:
+            if line.order_id:
+                # Log creation
+                msg = f"Line added: {line.product_id.display_name} (Qty: {line.product_uom_qty})"
+                line.order_id.message_post(body=msg)
+        return lines
+
+    def write(self, vals):
+        # Capture old values for tracking
+        changes = {}
+        track_fields = ['product_id', 'product_uom_qty']
+        
+        # Only track if relevant fields are being modified
+        if any(f in vals for f in track_fields):
+            for line in self:
+                changes[line.id] = {
+                    'product_id': line.product_id,
+                    'product_uom_qty': line.product_uom_qty,
+                }
+
+        result = super(SaleOrderLine, self).write(vals)
+
+        for line in self:
+            if line.id in changes:
+                old_data = changes[line.id]
+                
+                # Track Product Change
+                if 'product_id' in vals:
+                    new_product = line.product_id
+                    old_product = old_data['product_id']
+                    if old_product != new_product:
+                        msg = f"Product changed on line: {old_product.display_name or 'None'} -> {new_product.display_name or 'None'}"
+                        line.order_id.message_post(body=msg)
+                
+                # Track Quantity Change
+                if 'product_uom_qty' in vals:
+                    new_qty = line.product_uom_qty
+                    old_qty = old_data['product_uom_qty']
+                    if old_qty != new_qty:
+                        msg = f"Quantity changed for {line.product_id.display_name}: {old_qty} -> {new_qty}"
+                        line.order_id.message_post(body=msg)
+        
+        return result
+
+    def unlink(self):
+        for line in self:
+            if line.order_id and line.product_id:
+                msg = f"Line removed: {line.product_id.display_name} (Qty: {line.product_uom_qty})"
+                line.order_id.message_post(body=msg)
+        return super(SaleOrderLine, self).unlink()