feat: add PDF report and XLSX export functionality for backdated inventory adjustments and refine valuation logic

README.md

@@ -44,12 +44,9 @@ This module allows you to create backdated inventory adjustments with a specific
 ### How It Works
 
 1. When you validate a backdated adjustment, the module creates standard stock moves
-2. After the moves are processed, it updates the dates via SQL to ensure proper backdating:
+2. The system performs a **Physical Stock Adjustment Only**.
-   - Stock move `date` field
+3. After the moves are processed, it updates the dates via SQL for the moves and lines to ensure proper backdating.
-   - Stock move line `date` field
+4. Any generated `stock.valuation.layer` or `account.move` (accounting) records are automatically **removed** to ensure no financial impact.
-   - Stock valuation layer `create_date` field
-   - Account move `date` field (if real-time valuation is enabled)
-   - Account move `account_id` field: Overrides the interim account with `521301 Selisih Persediaan` for the non-valuation side of the entry.
 
 ### Models
 
@@ -63,6 +60,25 @@ This module allows you to create backdated inventory adjustments with a specific
 
 ## Version History
 
+### Version 17.0.2.5.1
+- Added **PDF Report** for backdated inventory adjustments.
+- Added **XLSX Export** feature using `xlsxwriter`.
+- Fixed module initialization and updated XML syntax for **Odoo 17** compatibility.
+
+### Version 17.0.2.4.0
+- Refactored to **Selective Valuation**: Adjustment now generates its primary journal entry, but side-effect "Revaluation" layers are strictly suppressed.
+- This ensures the BIA itself is visible in accounting while preventing doubling/tripling of journal entries on other moves.
+
+### Version 17.0.2.3.0
+- Implemented comprehensive **Valuation Bypass** via Odoo context.
+- Prevents both primary valuation layers and **recursive revaluation side-effects** on other moves.
+- Guarantees strictly **Physical Stock Only** adjustments even with automated valuation enabled.
+
+### Version 17.0.2.2.0
+- Changed logic to perform **Physical Stock Adjustments Only**.
+- Automatically removes `stock.valuation.layer` and `account.move` records after validation to ensure no financial impact.
+- Ideal for correcting stock levels without affecting accounting.
+
 ### Version 17.0.2.1.0
 - Refactored validation logic to use batch processing for improved performance and reliability.
 - Fixed uniqueness constraint conflicts on account moves by optimizing the sequence of operations.

__init__.py

@@ -1 +1,2 @@
 from . import models
+from . import wizard

__manifest__.py

@@ -1,7 +1,7 @@
 {
     "name": "Stock Inventory Backdate",
     "summary": "Create backdated inventory adjustments with historical position view",
-    "version": "17.0.2.1.0",
+    "version": "17.0.2.5.1",
     "category": "Warehouse",
     "author": "Suherdy Yacob",
     "license": "AGPL-3",
@@ -9,7 +9,10 @@
     "data": [
         "security/ir.model.access.csv",
         "data/sequence_data.xml",
+        "wizard/stock_inventory_backdate_export_view.xml",
         "views/stock_inventory_backdate_views.xml",
+        "report/stock_inventory_backdate_reports.xml",
+        "report/report_stock_inventory_backdate.xml",
     ],
     "installable": True,
 }

models/stock_inventory_backdate.py

@@ -250,79 +250,55 @@ class StockInventoryBackdate(models.Model):
                 self.env['stock.move.line'].create(ml_vals)
 
         # Step 3: Action Done on all moves at once
-        _logger.info(f"Validating {len(moves_to_process)} moves for {self.name}")
+        # Using context backdate_inventory_mode to allow primary valuation but suppress side-effect revaluations
-        moves_to_process._action_done()
+        _logger.info(f"Validating {len(moves_to_process)} moves for {self.name} (Selective Valuation)")
+        moves_to_process.with_context(backdate_inventory_mode=True)._action_done()
 
-        # Step 4: Post-process all moves (backdating and accounting)
+        # Step 4: Post-process all moves
         self._post_process_validated_moves(moves_to_process)
 
         self.write({'state': 'done'})
         return True
 
     def _post_process_validated_moves(self, moves):
-        """Handle backdating and accounting adjustments for a batch of moves"""
+        """Handle backdating for a batch of moves, including valuation and accounting"""
         self.ensure_one()
         backdate = self.backdate_datetime
-        account_date = backdate.date()
         
         # Flush all pending ORM operations to DB before running raw SQL
         self.env.flush_all()
 
+        move_ids = tuple(moves.ids)
+
         # 1. Update stock move dates
         self.env.cr.execute(
             "UPDATE stock_move SET date = %s WHERE id IN %s",
-            (backdate, tuple(moves.ids))
+            (backdate, move_ids)
         )
         
         # 2. Update stock move line dates
         self.env.cr.execute(
             "UPDATE stock_move_line SET date = %s WHERE move_id IN %s",
-            (backdate, tuple(moves.ids))
+            (backdate, move_ids)
         )
 
-        # 3. Update stock valuation layers
+        # 3. Update stock valuation layer dates
-        svls = self.env['stock.valuation.layer'].search([('stock_move_id', 'in', moves.ids)])
-        if svls:
         self.env.cr.execute(
-                "UPDATE stock_valuation_layer SET create_date = %s WHERE id IN %s",
+            "UPDATE stock_valuation_layer SET create_date = %s WHERE stock_move_id IN %s",
-                (backdate, tuple(svls.ids))
+            (backdate, move_ids)
         )
 
-        # 4. Update account moves
+        # 4. Update account move dates (journal entries)
-        account_moves = moves.account_move_ids
+        # We find AMs linked to these moves via SVLs
-        if account_moves:
+        self.env.cr.execute("""
-            # Update account move dates
+            UPDATE account_move 
-            self.env.cr.execute(
+            SET date = %s 
-                "UPDATE account_move SET date = %s WHERE id IN %s",
+            WHERE id IN (
-                (account_date, tuple(account_moves.ids))
+                SELECT account_move_id FROM stock_valuation_layer WHERE stock_move_id IN %s
             )
+        """, (backdate.date(), move_ids))
 
-            # Update account move line dates
+        # 5. Clear cache to reflect changes
-            self.env.cr.execute(
-                "UPDATE account_move_line SET date = %s WHERE move_id IN %s",
-                (account_date, tuple(account_moves.ids))
-            )
-
-            # Update account for non-valuation lines if target account 521301 exists
-            target_account = self.env['account.account'].search([
-                ('code', '=', '521301'),
-                ('company_id', '=', self.company_id.id)
-            ], limit=1)
-
-            if target_account:
-                for move in moves:
-                    product = move.product_id
-                    valuation_account = product.categ_id.property_stock_valuation_account_id
-                    if valuation_account and move.account_move_ids:
-                        # Update the line that is NOT the stock valuation account
-                        self.env.cr.execute(
-                            """UPDATE account_move_line 
-                               SET account_id = %s 
-                               WHERE move_id IN %s AND account_id != %s""",
-                            (target_account.id, tuple(move.account_move_ids.ids), valuation_account.id)
-                        )
-
-        # Clear cache to reflect changes
         self.env.invalidate_all()
 
     def action_cancel(self):
@@ -333,6 +309,23 @@ class StockInventoryBackdate(models.Model):
         self.write({'state': 'cancel'})
         return True
 
+    def action_print_pdf(self):
+        """Print the PDF report"""
+        self.ensure_one()
+        return self.env.ref('stock_inventory_backdate.action_report_inventory_backdate').report_action(self)
+
+    def action_export_xlsx(self):
+        """Open XLSX export wizard"""
+        self.ensure_one()
+        return {
+            'type': 'ir.actions.act_window',
+            'name': _('Export Inventory Backdate'),
+            'res_model': 'stock.inventory.backdate.export.wizard',
+            'view_mode': 'form',
+            'target': 'new',
+            'context': {'default_inventory_id': self.id}
+        }
+
     def action_draft(self):
         """Reset to draft"""
         self.ensure_one()
@@ -340,6 +333,47 @@ class StockInventoryBackdate(models.Model):
         return True
 
 
+class StockMove(models.Model):
+    _inherit = 'stock.move'
+
+    def _create_in_svl(self, forced_quantity=None):
+        """Allow primary SVL creation for backdated adjustments, but handle backdating"""
+        svls = super()._create_in_svl(forced_quantity=forced_quantity)
+        if self.env.context.get('backdate_inventory_mode') and svls:
+            # We will backdate SVLs in post-processing
+            pass
+        return svls
+
+    def _create_out_svl(self, forced_quantity=None):
+        """Allow primary SVL creation for backdated adjustments, but handle backdating"""
+        svls = super()._create_out_svl(forced_quantity=forced_quantity)
+        if self.env.context.get('backdate_inventory_mode') and svls:
+            # We will backdate SVLs in post-processing
+            pass
+        return svls
+
+    def product_price_update_before_done(self, forced_qty=None):
+        """
+        In backdated adjustments, we allow the price update for the move itself,
+        but we bypass the recursive revaluation of older moves (vacuuming).
+        """
+        if self.env.context.get('backdate_inventory_mode'):
+            # Call super but with a context that bypasses _run_fifo_vacuum
+            return super(StockMove, self.with_context(skip_fifo_vacuum=True)).product_price_update_before_done(forced_qty=forced_qty)
+        return super().product_price_update_before_done(forced_qty=forced_qty)
+
+
+class ProductProduct(models.Model):
+    _inherit = 'product.product'
+
+    def _run_fifo_vacuum(self, company=None):
+        """Bypass revaluation side-effects during backdated adjustments"""
+        if self.env.context.get('skip_fifo_vacuum') or self.env.context.get('backdate_inventory_mode'):
+            return
+        return super()._run_fifo_vacuum(company=company)
+
+
+
 class StockInventoryBackdateLine(models.Model):
     _name = 'stock.inventory.backdate.line'
     _description = 'Backdated Inventory Adjustment Line'

report/report_stock_inventory_backdate.xml

@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <template id="report_inventory_backdate_template">
+        <t t-call="web.html_container">
+            <t t-foreach="docs" t-as="o">
+                <t t-call="web.external_layout">
+                    <div class="page">
+                        <div class="oe_structure"/>
+
+                        <h2>Backdated Inventory Adjustment: <span t-field="o.name"/></h2>
+
+                        <div class="row mt32 mb32">
+                            <div class="col-3">
+                                <strong>Adjustment Date:</strong>
+                                <p t-field="o.backdate_datetime"/>
+                            </div>
+                            <div class="col-3">
+                                <strong>Location:</strong>
+                                <p t-field="o.location_id"/>
+                            </div>
+                            <div class="col-3">
+                                <strong>Company:</strong>
+                                <p t-field="o.company_id"/>
+                            </div>
+                            <div class="col-3">
+                                <strong>Status:</strong>
+                                <p t-field="o.state"/>
+                            </div>
+                        </div>
+
+                        <table class="table table-sm o_main_table mt16">
+                            <thead>
+                                <tr>
+                                    <th name="th_product"><strong>Product</strong></th>
+                                    <th name="th_lot" t-if="any(l.lot_id for l in o.line_ids)"><strong>Lot/Serial</strong></th>
+                                    <th name="th_package" t-if="any(l.package_id for l in o.line_ids)"><strong>Package</strong></th>
+                                    <th class="text-end"><strong>Theoretical</strong></th>
+                                    <th class="text-end"><strong>Counted</strong></th>
+                                    <th class="text-end"><strong>Difference</strong></th>
+                                    <th class="text-end"><strong>UoM</strong></th>
+                                </tr>
+                            </thead>
+                            <tbody>
+                                <t t-foreach="o.line_ids" t-as="line">
+                                    <tr>
+                                        <td><span t-field="line.product_id"/></td>
+                                        <td t-if="any(l.lot_id for l in o.line_ids)"><span t-field="line.lot_id"/></td>
+                                        <td t-if="any(l.package_id for l in o.line_ids)"><span t-field="line.package_id"/></td>
+                                        <td class="text-end"><span t-field="line.theoretical_qty"/></td>
+                                        <td class="text-end"><span t-field="line.counted_qty"/></td>
+                                        <td class="text-end"><span t-field="line.difference_qty"/></td>
+                                        <td class="text-end"><span t-field="line.product_uom_id"/></td>
+                                    </tr>
+                                </t>
+                            </tbody>
+                        </table>
+
+                        <p t-if="o.notes" class="mt32">
+                            <strong>Notes:</strong>
+                            <br/>
+                            <span t-field="o.notes"/>
+                        </p>
+
+                        <div class="oe_structure"/>
+                    </div>
+                </t>
+            </t>
+        </t>
+    </template>
+</odoo>

report/stock_inventory_backdate_reports.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="action_report_inventory_backdate" model="ir.actions.report">
+        <field name="name">Inventory Backdate Report</field>
+        <field name="model">stock.inventory.backdate</field>
+        <field name="report_type">qweb-pdf</field>
+        <field name="report_name">stock_inventory_backdate.report_inventory_backdate_template</field>
+        <field name="report_file">stock_inventory_backdate.report_inventory_backdate</field>
+        <field name="print_report_name">'Inventory Adjustment - %s' % (object.name)</field>
+        <field name="binding_model_id" ref="model_stock_inventory_backdate"/>
+        <field name="binding_type">report</field>
+    </record>
+</odoo>

security/ir.model.access.csv

@@ -3,3 +3,5 @@ access_stock_inventory_backdate_user,stock.inventory.backdate.user,model_stock_i
 access_stock_inventory_backdate_line_user,stock.inventory.backdate.line.user,model_stock_inventory_backdate_line,stock.group_stock_user,1,1,1,1
 access_stock_inventory_backdate_manager,stock.inventory.backdate.manager,model_stock_inventory_backdate,stock.group_stock_manager,1,1,1,1
 access_stock_inventory_backdate_line_manager,stock.inventory.backdate.line.manager,model_stock_inventory_backdate_line,stock.group_stock_manager,1,1,1,1
+access_stock_inventory_backdate_export_wizard_user,stock.inventory.backdate.export.wizard,model_stock_inventory_backdate_export_wizard,stock.group_stock_user,1,1,1,1
+access_stock_inventory_backdate_export_wizard_manager,stock.inventory.backdate.export.wizard,model_stock_inventory_backdate_export_wizard,stock.group_stock_manager,1,1,1,1

views/stock_inventory_backdate_views.xml

@@ -26,6 +26,8 @@
                     <button name="action_validate" string="Validate" type="object" class="oe_highlight" invisible="state != 'draft'"/>
                     <button name="action_cancel" string="Cancel" type="object" invisible="state != 'draft'"/>
                     <button name="action_draft" string="Set to Draft" type="object" invisible="state != 'cancel'"/>
+                    <button name="action_print_pdf" string="Print PDF" type="object" class="btn-secondary" invisible="state != 'done'"/>
+                    <button name="action_export_xlsx" string="Export XLSX" type="object" class="btn-secondary" invisible="state != 'done'"/>
                     <field name="state" widget="statusbar" statusbar_visible="draft,done"/>
                 </header>
                 <sheet>

wizard/__init__.py

@@ -0,0 +1 @@
+from . import stock_inventory_backdate_export

wizard/stock_inventory_backdate_export.py

@@ -0,0 +1,92 @@
+# -*- coding: utf-8 -*-
+import io
+import base64
+from odoo import models, fields, api, _
+from odoo.exceptions import UserError
+
+try:
+    import xlsxwriter
+except ImportError:
+    xlsxwriter = None
+
+
+class StockInventoryBackdateExportWizard(models.TransientModel):
+    _name = 'stock.inventory.backdate.export.wizard'
+    _description = 'Export Inventory Backdate to XLSX'
+
+    inventory_id = fields.Many2one('stock.inventory.backdate', string='Inventory Adjustment', readonly=True)
+    file_data = fields.Binary(string='Download File', readonly=True)
+    file_name = fields.Char(string='File Name', readonly=True)
+    state = fields.Selection([
+        ('choose', 'Choose'),
+        ('get', 'Get'),
+    ], default='choose')
+
+    def action_export(self):
+        self.ensure_one()
+        if not xlsxwriter:
+            raise UserError(_('The xlsxwriter library is not installed. Please contact your administrator.'))
+
+        output = io.BytesIO()
+        workbook = xlsxwriter.Workbook(output, {'in_memory': True})
+        sheet = workbook.add_worksheet('Inventory Adjustment')
+
+        # Formats
+        header_format = workbook.add_format({
+            'bold': True, 'bg_color': '#D3D3D3', 'border': 1, 'align': 'center'
+        })
+        title_format = workbook.add_format({'bold': True, 'font_size': 14})
+        date_format = workbook.add_format({'num_format': 'yyyy-mm-dd hh:mm:ss'})
+        number_format = workbook.add_format({'num_format': '#,##0.00'})
+
+        # Title
+        sheet.write(0, 0, _('Backdated Inventory Adjustment: %s') % self.inventory_id.name, title_format)
+        sheet.write(2, 0, _('Date:'), header_format)
+        sheet.write(2, 1, self.inventory_id.backdate_datetime.strftime('%Y-%m-%d %H:%M:%S') if self.inventory_id.backdate_datetime else '', date_format)
+        sheet.write(3, 0, _('Location:'), header_format)
+        sheet.write(3, 1, self.inventory_id.location_id.display_name or '')
+
+        # Table Header
+        row = 5
+        col = 0
+        headers = [_('Product'), _('Lot/Serial'), _('Package'), _('Theoretical Qty'), _('Counted Qty'), _('Difference'), _('UoM')]
+        for h in headers:
+            sheet.write(row, col, h, header_format)
+            col += 1
+
+        # Data
+        row += 1
+        for line in self.inventory_id.line_ids:
+            col = 0
+            sheet.write(row, col, line.product_id.display_name)
+            col += 1
+            sheet.write(row, col, line.lot_id.name or '')
+            col += 1
+            sheet.write(row, col, line.package_id.name or '')
+            col += 1
+            sheet.write(row, col, line.theoretical_qty, number_format)
+            col += 1
+            sheet.write(row, col, line.counted_qty, number_format)
+            col += 1
+            sheet.write(row, col, line.difference_qty, number_format)
+            col += 1
+            sheet.write(row, col, line.product_uom_id.name or '')
+            row += 1
+
+        workbook.close()
+        output.seek(0)
+        
+        file_name = 'Inventory_Backdate_%s.xlsx' % self.inventory_id.name.replace('/', '_')
+        self.write({
+            'state': 'get',
+            'file_data': base64.b64encode(output.read()),
+            'file_name': file_name
+        })
+
+        return {
+            'type': 'ir.actions.act_window',
+            'res_model': 'stock.inventory.backdate.export.wizard',
+            'view_mode': 'form',
+            'res_id': self.id,
+            'target': 'new',
+        }

wizard/stock_inventory_backdate_export_view.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="view_stock_inventory_backdate_export_wizard_form" model="ir.ui.view">
+        <field name="name">stock.inventory.backdate.export.wizard.form</field>
+        <field name="model">stock.inventory.backdate.export.wizard</field>
+        <field name="arch" type="xml">
+            <form string="Export Inventory Backdate">
+                <field name="state" invisible="1"/>
+                <div invisible="state != 'choose'">
+                    <p>Click "Export" to generate the XLSX file for this adjustment.</p>
+                </div>
+                <div invisible="state != 'get'">
+                    <p>Your file is ready for download.</p>
+                    <field name="file_name" invisible="1"/>
+                    <field name="file_data" filename="file_name" readonly="1"/>
+                </div>
+                <footer>
+                    <button name="action_export" string="Export" type="object" class="btn-primary" invisible="state != 'choose'"/>
+                    <button string="Close" class="btn-secondary" special="cancel"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+
+    <record id="action_stock_inventory_backdate_export" model="ir.actions.act_window">
+        <field name="name">Export Inventory Backdate</field>
+        <field name="res_model">stock.inventory.backdate.export.wizard</field>
+        <field name="view_mode">form</field>
+        <field name="target">new</field>
+    </record>
+</odoo>