Jun 6 [ADD] : Initial Commit 'purchase_down_payment'

purchase_down_payment/README.rst

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+.. image:: https://img.shields.io/badge/licence-AGPL--3-blue.svg
+    :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+    :alt: License: AGPL-3
+
+Purchase Down Payment
+=======================
+This module helps to register down payment against the purchase order.
+
+Configuration
+=============
+No additional configuration
+
+Company
+-------
+* `Cybrosys Techno Solutions <https://cybrosys.com/>`__
+
+License
+=======
+GNU AFFERO GENERAL PUBLIC LICENSE, Version 3 (AGPLv3)
+(http://www.gnu.org/licenses/agpl.html)
+
+Credits
+-------
+Developer: V16 - Aswathi PN @cybrosys, Contact: odoo@cybrosys.com
+
+Contacts
+--------
+* Mail Contact : odoo@cybrosys.com
+* Website : https://cybrosys.com
+
+Bug Tracker
+-----------
+Bugs are tracked on GitHub Issues. In case of trouble, please check there if your issue has already been reported.
+
+Maintainer
+==========
+.. image:: https://cybrosys.com/images/logo.png
+   :target: https://cybrosys.com
+
+This module is maintained by Cybrosys Technologies.
+
+For support and more information, please visit `Our Website <https://cybrosys.com/>`__
+
+Further information
+===================
+HTML Description: `<static/description/index.html>`__

purchase_down_payment/__init__.py

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+# -*- coding: utf-8 -*-
+################################################################################
+#
+#    Cybrosys Technologies Pvt. Ltd.
+#
+#    Copyright (C) 2023-TODAY Cybrosys Technologies(<https://www.cybrosys.com>).
+#    Author: Aswathi PN (odoo@cybrosys.com)
+#
+#    You can modify it under the terms of the GNU AFFERO
+#    GENERAL PUBLIC LICENSE (AGPL v3), Version 3.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU AFFERO GENERAL PUBLIC LICENSE (AGPL v3) for more details.
+#
+#    You should have received a copy of the GNU AFFERO GENERAL PUBLIC LICENSE
+#    (AGPL v3) along with this program.
+##############################################################################
+from . import models
+from . import wizards

purchase_down_payment/__manifest__.py

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+# -*- coding: utf-8 -*-
+################################################################################
+#
+#    Cybrosys Technologies Pvt. Ltd.
+#
+#    Copyright (C) 2023-TODAY Cybrosys Technologies(<https://www.cybrosys.com>).
+#    Author: Aswathi PN (odoo@cybrosys.com)
+#
+#    You can modify it under the terms of the GNU AFFERO
+#    GENERAL PUBLIC LICENSE (AGPL v3), Version 3.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU AFFERO GENERAL PUBLIC LICENSE (AGPL v3) for more details.
+#
+#    You should have received a copy of the GNU AFFERO GENERAL PUBLIC LICENSE
+#    (AGPL v3) along with this program.
+##############################################################################
+{
+    'name': 'Purchase Down Payment',
+    'version': '16.0.1.0.0',
+    'summary': """Down payment with purchase order""",
+    'description': """"This module provides easy feature to register down payment against the purchase order. 
+                       User will be able to register downpayment in percentage and amount that would deduct 
+                       from vendor bill.""",
+    'category': 'Purchase',
+    'author': 'Cybrosys Techno Solutions',
+    'company': 'Cybrosys Techno Solutions',
+    'maintainer': 'Cybrosys Techno Solutions',
+    'website': "http://www.cybrosys.com",
+    'depends': ['base', 'purchase', 'sale'],
+    'data': [
+        'security/ir.model.access.csv',
+        'wizards/purchase_order_advance_payment_views.xml',
+        'views/purchase_order_views.xml',
+        'views/res_config_settings_views.xml',
+    ],
+    'images': ['static/description/banner.jpg'],
+    'license': 'AGPL-3',
+    'installable': True,
+    'auto_install': False,
+    'application': False,
+}

purchase_down_payment/doc/RELEASE_NOTES.md

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+## Module <purchase_down_payment>
+
+#### 03.01.2023
+#### Version 16.0.1.0.0
+#### ADD
+
+- Initial commit for Purchase Down Payment

purchase_down_payment/models/__init__.py

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+# -*- coding: utf-8 -*-
+################################################################################
+#
+#    Cybrosys Technologies Pvt. Ltd.
+#
+#    Copyright (C) 2023-TODAY Cybrosys Technologies(<https://www.cybrosys.com>).
+#    Author: Aswathi PN (odoo@cybrosys.com)
+#
+#    You can modify it under the terms of the GNU AFFERO
+#    GENERAL PUBLIC LICENSE (AGPL v3), Version 3.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU AFFERO GENERAL PUBLIC LICENSE (AGPL v3) for more details.
+#
+#    You should have received a copy of the GNU AFFERO GENERAL PUBLIC LICENSE
+#    (AGPL v3) along with this program.
+##############################################################################
+from . import purchase_order
+from . import purchase_order_line
+from . import res_config_settings

purchase_down_payment/models/purchase_order.py

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+# -*- coding: utf-8 -*-
+################################################################################
+#
+#    Cybrosys Technologies Pvt. Ltd.
+#
+#    Copyright (C) 2023-TODAY Cybrosys Technologies(<https://www.cybrosys.com>).
+#    Author: Aswathi PN (odoo@cybrosys.com)
+#
+#    You can modify it under the terms of the GNU AFFERO
+#    GENERAL PUBLIC LICENSE (AGPL v3), Version 3.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU AFFERO GENERAL PUBLIC LICENSE (AGPL v3) for more details.
+#
+#    You should have received a copy of the GNU AFFERO GENERAL PUBLIC LICENSE
+#    (AGPL v3) along with this program.
+##############################################################################
+from odoo import api, models, _
+from odoo.tools import float_is_zero
+from itertools import groupby
+from odoo.exceptions import UserError
+
+
+class PurchaseOrder(models.Model):
+    """
+        This class is created for inherited model Purchase Order.
+
+        Methods:
+            _nothing_to_invoice_error(self):
+                Function for showing the user error while there is no products are received for the purchase order.
+
+            _deduct_payment(self):
+                This function is for deducting the down payment amount from next down payment invoice.
+
+            _prepare_down_payment_section_line(self):
+                Function for creating dict of values to create a new purchase down payment section.
+
+            _get_invoiceable_lines(self):
+                Function for returning the orders invoiceable lines.
+
+        """
+    _inherit = 'purchase.order'
+
+    @api.model
+    def _nothing_to_invoice_error(self):
+        """Function to showing user error while there is no products are received for the purchase order"""
+        return UserError(_(
+            "There is nothing to bill!\n\n"
+            "Reason(s) of this behavior could be:\n"
+            "- You should recieve your products before billing them: Click on the \"truck\" icon "
+            "(top-right of your screen) and follow instructions.\n"
+            "- You should modify the control policy of your product: Open the product, go to the "
+            "\"Purchase\" tab and modify control policy from \"On received quantities\" to \"On ordered "
+            "quantities\"."
+        ))
+
+    def _deduct_payment(self, grouped=False, final=False, date=None):
+        """
+        Create the Bill associated to the PO.
+        :returns: list of created invoices
+        """
+        invoice_vals_list = []
+        invoice_item_sequence = 0  # Incremental sequencing to keep the lines order on the invoice.
+        for order in self:
+            order = order.with_company(order.company_id)
+            invoice_vals = order._prepare_invoice()
+            invoiceable_lines = order._get_invoiceable_lines(final)
+            if not any(not line.display_type for line in invoiceable_lines):
+                continue
+            invoice_line_vals = []
+            down_payment_section_added = False
+            for line in invoiceable_lines:
+                if not down_payment_section_added and line.is_downpayment:
+                    invoice_line_vals.append(
+                        (0, 0, order._prepare_down_payment_section_line(
+                            sequence=invoice_item_sequence,
+                        )),
+                    )
+                    down_payment_section_added = True
+                    invoice_item_sequence += 1
+                invoice_line_vals.append(
+                    (0, 0, line._prepare_invoice_line(
+                        sequence=invoice_item_sequence,
+                    )),
+                )
+                invoice_item_sequence += 1
+            invoice_vals['invoice_line_ids'] += invoice_line_vals
+            invoice_vals_list.append(invoice_vals)
+        if not invoice_vals_list:
+            raise self._nothing_to_invoice_error()
+        if not grouped:
+            new_invoice_vals_list = []
+            invoice_grouping_keys = self._get_invoice_grouping_keys()
+            invoice_vals_list = sorted(
+                invoice_vals_list,
+                key=lambda x: [
+                    x.get(grouping_key) for grouping_key in invoice_grouping_keys
+                ]
+            )
+            for grouping_keys, invoices in groupby(invoice_vals_list,
+                                                   key=lambda x: [x.get(grouping_key) for grouping_key in
+                                                                  invoice_grouping_keys]):
+                origins = set()
+                payment_refs = set()
+                refs = set()
+                ref_invoice_vals = None
+                for invoice_vals in invoices:
+                    if not ref_invoice_vals:
+                        ref_invoice_vals = invoice_vals
+                    else:
+                        ref_invoice_vals['invoice_line_ids'] += invoice_vals['invoice_line_ids']
+                    origins.add(invoice_vals['invoice_origin'])
+                    payment_refs.add(invoice_vals['payment_reference'])
+                    refs.add(invoice_vals['ref'])
+                ref_invoice_vals.update({
+                    'ref': ', '.join(refs)[:2000],
+                    'invoice_origin': ', '.join(origins),
+                    'payment_reference': len(payment_refs) == 1 and payment_refs.pop() or False,
+                })
+                new_invoice_vals_list.append(ref_invoice_vals)
+            invoice_vals_list = new_invoice_vals_list
+        if len(invoice_vals_list) < len(self):
+            PurchaseOrderLine = self.env['purchase.order.line']
+            for invoice in invoice_vals_list:
+                sequence = 1
+                for line in invoice['invoice_line_ids']:
+                    line[2]['sequence'] = PurchaseOrderLine._get_invoice_line_sequence(new=sequence,
+                                                                                       old=line[2]['sequence'])
+                    sequence += 1
+        moves = self.env['account.move'].sudo().with_context(default_move_type='out_invoice').create(invoice_vals_list)
+        return moves
+
+    @api.model
+    def _prepare_down_payment_section_line(self, **optional_values):
+        """
+        Prepare the dict of values to create a new down payment section for a purchase order line.
+        :param optional_values: any parameter that should be added to the returned down payment section
+        """
+        context = {'lang': self.partner_id.lang}
+        down_payments_section_line = {
+            'display_type': 'line_section',
+            'name': _('Down Payments'),
+            'product_id': False,
+            'product_uom_id': False,
+            'quantity': 0,
+            'discount': 0,
+            'price_unit': 0,
+            'account_id': False
+        }
+        del context
+        if optional_values:
+            down_payments_section_line.update(optional_values)
+        return down_payments_section_line
+
+    def _get_invoice_grouping_keys(self):
+        """Return invoice grouping keys"""
+        return ['company_id', 'partner_id', 'currency_id']
+
+    def _get_invoiceable_lines(self, final=False):
+        """Return the invoiceable lines for order `self`."""
+        down_payment_line_ids = []
+        invoiceable_line_ids = []
+        pending_section = None
+        precision = self.env['decimal.precision'].precision_get('Product Unit of Measure')
+        for line in self.order_line:
+            line.display_type = ''
+            if line.display_type == 'line_section':
+                pending_section = line
+                continue
+            if line.display_type != 'line_note' and float_is_zero(line.qty_to_invoice, precision_digits=precision):
+                continue
+            if line.qty_to_invoice > 0 or (line.qty_to_invoice < 0 and final) or line.display_type == 'line_note':
+                if line.is_downpayment:
+                    down_payment_line_ids.append(line.id)
+                    continue
+                if pending_section:
+                    invoiceable_line_ids.append(pending_section.id)
+                    pending_section = None
+                invoiceable_line_ids.append(line.id)
+        return self.env['purchase.order.line'].browse(invoiceable_line_ids + down_payment_line_ids)

purchase_down_payment/models/purchase_order_line.py

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+# -*- coding: utf-8 -*-
+################################################################################
+#
+#    Cybrosys Technologies Pvt. Ltd.
+#
+#    Copyright (C) 2023-TODAY Cybrosys Technologies(<https://www.cybrosys.com>).
+#    Author: Aswathi PN (odoo@cybrosys.com)
+#
+#    You can modify it under the terms of the GNU AFFERO
+#    GENERAL PUBLIC LICENSE (AGPL v3), Version 3.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU AFFERO GENERAL PUBLIC LICENSE (AGPL v3) for more details.
+#
+#    You should have received a copy of the GNU AFFERO GENERAL PUBLIC LICENSE
+#    (AGPL v3) along with this program.
+##############################################################################
+from odoo import fields, models
+
+
+class PurchaseOrderLine(models.Model):
+    """
+            The class is created for inherited the model purchase.order.line.
+
+            Methods:
+                _prepare_invoice_line():
+                    Function to add the invoice lines of down payment
+    """
+    _inherit = 'purchase.order.line'
+
+    is_downpayment = fields.Boolean(
+        string="Is a down payment", help="Down payments are made when creating Bills from a purchase order."
+                                         " They are not copied when duplicating a purchase order.")
+
+    def _prepare_invoice_line(self, **optional_values):
+        """
+        Prepare the dict of values to create the new bill line for a purchase order line.
+        :param qty: float quantity to bill
+        :param optional_values: any parameter that should be added to the returned bill line
+        """
+        self.ensure_one()
+        res = {
+            'display_type': 'product',
+            'sequence': self.sequence,
+            'name': self.name,
+            'product_id': self.product_id.id,
+            'product_uom_id': self.product_uom.id,
+            'quantity': self.qty_to_invoice,
+            'price_unit': self.price_unit,
+            'purchase_line_id': self.id,
+        }
+        if optional_values:
+            res.update(optional_values)
+        if self.display_type:
+            res['account_id'] = False
+        return res

purchase_down_payment/models/res_config_settings.py

@@ -0,0 +1,32 @@
+# -*- coding: utf-8 -*-
+################################################################################
+#
+#    Cybrosys Technologies Pvt. Ltd.
+#
+#    Copyright (C) 2023-TODAY Cybrosys Technologies(<https://www.cybrosys.com>).
+#    Author: Aswathi PN (odoo@cybrosys.com)
+#
+#    You can modify it under the terms of the GNU AFFERO
+#    GENERAL PUBLIC LICENSE (AGPL v3), Version 3.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU AFFERO GENERAL PUBLIC LICENSE (AGPL v3) for more details.
+#
+#    You should have received a copy of the GNU AFFERO GENERAL PUBLIC LICENSE
+#    (AGPL v3) along with this program.
+##############################################################################
+from odoo import fields, models
+
+
+class ResConfigSettings(models.TransientModel):
+    """The class is to created for inherited the model Res Config Settings"""
+    _inherit = 'res.config.settings'
+
+    po_deposit_default_product_id = fields.Many2one(
+        'product.product',
+        'PO Deposit Product',
+        domain="[('type', '=', 'service')]",
+        config_parameter='purchase_down_payment.po_deposit_default_product_id',
+        help='Default product used for payment advances in purchase order')

purchase_down_payment/security/ir.model.access.csv

@@ -0,0 +1,2 @@
+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+access_purchase_order_advance_payment,access.purchase.order.advance.payment,model_purchase_order_advance_payment,base.group_user,1,1,1,1

purchase_down_payment/static/description/index.html

@@ -0,0 +1,644 @@
+<div style="background-color: #714B67; min-height: 600px; width: 100%; padding: 15px; position: relative;">
+    <!-- TITLE BAR -->
+    <div
+            style="border-bottom: 1px solid #875A7B; padding: 15px; display: flex; justify-content: space-between; align-items: center;">
+        <img src="assets/misc/cybrosys-logo.png" width="42" height="42"
+             style="width: 42px; height: 42px;"/>
+        <div>
+            <div style="color: #7C7BAD; font-size: 14px; font-family: 'Montserrat', sans-serif; font-weight: bold; background-color: white; display: inline-block; padding: 3px 10px; border-radius: 50px;"
+                 class="mr-2">
+                <i class="fa fa-check mr-1"></i>Community
+            </div>
+            <div style="color: #875A7B; font-size: 14px; font-family: 'Montserrat', sans-serif; font-weight: bold; background-color: white; display: inline-block; padding: 3px 10px; border-radius: 50px;"
+                 class="mr-2">
+                <i class="fa fa-check mr-1"></i>Enterprise
+            </div>
+
+        </div>
+    </div>
+    <!-- END OF TITLE BAR -->
+
+    <!-- APP HERO -->
+    <h1 style="color: #FFFFFF; font-weight: bolder; font-size: 50px; text-align: center; margin-top: 50px;">
+        Purchase Down Payment</h1>
+    <p style="color:#FFFFFF; padding: 8px 15px; text-align: center; font-size: 24px;">
+        Down Payment with Purchase Order</p>
+    <!-- END OF APP HERO -->
+    <img src="assets/screenshots/hero.gif"
+         style="width: 75%; height: auto; position: absolute; margin-left: auto; margin-right: auto; top: 45%; left: 12%; right: auto;"/>
+
+</div>
+
+<!-- NAVIGATION SECTION -->
+<div class="d-flex align-items-center"
+     style="border-bottom: 2px solid #714B67; padding: 15px 0px; margin-top: 300px;">
+    <div class="d-flex justify-content-center align-items-center mr-2"
+         style="background-color: #F5F5F5; border-radius: 0px; width: 40px; height: 40px;">
+        <img src="assets/misc/compass.png"/>
+    </div>
+    <!--    <h2 class="mt-2" style="font-family: 'Montserrat', sans-serif; font-size: 24px; font-weight: bold;">Explore This-->
+    <!--        Module</h2>-->
+</div>
+<div class="row my-4" style="font-family: 'Montserrat', sans-serif;">
+    <div class="col-sm-12 col-md-6 my-3">
+        <a href="#overview">
+            <div class="d-flex justify-content-between align-items-center"
+                 style="background-color: #f5f5f5; padding: 30px; width: 100%;">
+                <div>
+                    <span style="color: #714B67; font-size: 24px; font-weight: 500; display: block;">Overview</span>
+                    <span
+                            style="color: #714B67; font-size: 16px; font-weight: 400; color:#282F33;  display: block;">Learn
+                        more about this
+                        module</span>
+                </div>
+                <img src="assets/misc/right-arrow.png" width="36" height="36"/>
+            </div>
+        </a>
+    </div>
+    <div class="col-sm-12 col-md-6 my-3">
+        <a href="#features">
+            <div class="d-flex justify-content-between align-items-center"
+                 style="background-color: #f5f5f5; padding: 30px; width: 100%;">
+                <div>
+                    <span style="color: #714B67; font-size: 24px; font-weight: 500; display: block;">Features</span>
+                    <span
+                            style="color: #714B67; font-size: 16px; font-weight: 400; color:#282F33;  display: block;">View
+                        features of this
+                        module</span>
+                </div>
+                <img src="assets/misc/right-arrow.png" width="36" height="36"/>
+            </div>
+        </a>
+    </div>
+    <div class="col-sm-12 col-md-6 my-3">
+        <a href="#screenshots">
+            <div class="d-flex justify-content-between align-items-center"
+                 style="background-color: #f5f5f5; padding: 30px; width: 100%;">
+                <div>
+                    <span style="color: #714B67; font-size: 24px; font-weight: 500; display: block;">Screenshots</span>
+                    <span
+                            style="color: #714B67; font-size: 16px; font-weight: 400; color:#282F33;  display: block;">View
+                        screenshots for this
+                        module</span>
+                </div>
+                <img src="assets/misc/right-arrow.png" width="36" height="36"/>
+            </div>
+        </a>
+    </div>
+</div>
+<!-- END OF NAVIGATION SECTION -->
+
+<!-- OVERVIEW SECTION -->
+<div class="d-flex align-items-center"
+     style="border-bottom: 2px solid #714B67; padding: 15px 0px;" id="overview">
+    <div class="d-flex justify-content-center align-items-center mr-2"
+         style="background-color: #F5F5F5; border-radius: 0px; width: 40px; height: 40px;">
+        <img src="assets/misc/pie-chart.png"/>
+    </div>
+    <h2 class="mt-2"
+        style="font-family: 'Montserrat', sans-serif; font-size: 24px; font-weight: bold;">
+        Overview
+    </h2>
+</div>
+<div class="row"
+     style="font-family: 'Montserrat', sans-serif; font-weight: 400; font-size: 14px; line-height: 200%;">
+    <div class="col-sm-12 py-4">
+        This module provides easy feature to register down payment against the
+        purchase order. User will be able to register down payment in percentage
+        and amount that would deduct from vendor bill.
+    </div>
+</div>
+<!-- END OF OVERVIEW SECTION -->
+
+<!-- FEATURES SECTION -->
+<div class="d-flex align-items-center"
+     style="border-bottom: 2px solid #714B67; padding: 15px 0px;" id="features">
+    <div class="d-flex justify-content-center align-items-center mr-2"
+         style="background-color: #F5F5F5; border-radius: 0px; width: 40px; height: 40px;">
+        <img src="assets/misc/features.png"/>
+    </div>
+    <h2 class="mt-2"
+        style="font-family: 'Montserrat', sans-serif; font-size: 24px; font-weight: bold;">
+        Features
+    </h2>
+</div>
+<div class="row"
+     style="font-family: 'Montserrat', sans-serif; font-weight: 400; font-size: 14px; line-height: 200%;">
+    <div class="col-sm-12 col-md-6">
+        <div class="d-flex align-items-center"
+             style="margin-top: 30px; margin-bottom: 30px">
+            <img src="assets/misc/check-box.png" class="mr-2"/>
+            <span style="font-family: 'Montserrat', sans-serif; font-size: 18px; font-weight: bold;">Available in Odoo 16.0 Community and Enterprise.</span>
+        </div>
+    </div>
+    <div class="col-sm-12 col-md-6">
+
+        <div class="d-flex align-items-center"
+             style="margin-top: 30px; margin-bottom: 30px">
+            <img src="assets/misc/check-box.png" class="mr-2"/>
+            <span style="font-family: 'Montserrat', sans-serif; font-size: 18px; font-weight: bold;">We can easily manage the down payment with purchase order.</span>
+        </div>
+    </div>
+    <div class="col-sm-12 col-md-6">
+        <div class="d-flex align-items-center"
+             style="margin-top: 30px; margin-bottom: 30px">
+            <img src="assets/misc/check-box.png" class="mr-2"/>
+            <span style="font-family: 'Montserrat', sans-serif; font-size: 18px; font-weight: bold;">You can choose whether to deduct the down payment from the invoice or not.</span>
+        </div>
+    </div>
+    <div class="col-sm-12 col-md-6">
+        <div class="d-flex align-items-center"
+             style="margin-top: 30px; margin-bottom: 30px">
+            <img src="assets/misc/check-box.png" class="mr-2"/>
+            <span style="font-family: 'Montserrat', sans-serif; font-size: 18px; font-weight: bold;">A bill can be created in three ways: with percentages, with fixed amounts, or with regular amounts.</span>
+        </div>
+    </div>
+</div>
+<!-- END OF FEATURES SECTION -->
+
+<!-- SCREENSHOTS SECTION -->
+<div class="d-flex align-items-center"
+     style="border-bottom: 2px solid #714B67; padding: 15px 0px;"
+     id="screenshots">
+    <div class="d-flex justify-content-center align-items-center mr-2"
+         style="background-color: #F5F5F5; border-radius: 0px; width: 40px; height: 40px;">
+        <img src="assets/misc/pictures.png"/>
+    </div>
+    <h2 class="mt-2"
+        style="font-family: 'Montserrat', sans-serif; font-size: 24px; font-weight: bold;">
+        Screenshots
+    </h2>
+</div>
+<div class="row">
+    <div class="col-sm-12">
+
+        <div style="display: block; margin: 30px auto;">
+            <h3 style="font-family: 'Montserrat', sans-serif; font-size: 18px; font-weight: bold;">
+                Options For Creating Vendor Bill</h3>
+            <p style="font-weight: 400; font-family: 'Montserrat', sans-serif; font-size: 14px;">
+                </p>
+            <img src="assets/screenshots/down2.png" class="img-thumbnail">
+        </div>
+
+        <div style="display: block; margin: 30px auto;">
+            <h3 style="font-family: 'Montserrat', sans-serif; font-size: 18px; font-weight: bold;">
+                Down Payment with fixed amount</h3>
+            <p style="font-weight: 400; font-family: 'Montserrat', sans-serif; font-size: 14px;"></p>
+            <img src="assets/screenshots/down5.png" class="img-thumbnail">
+        </div>
+
+        <div style="display: block; margin: 30px auto;">
+            <h3 style="font-family: 'Montserrat', sans-serif; font-size: 18px; font-weight: bold;">
+                Down Payment with a Percentage.</h3>
+            <p style="font-weight: 400; font-family: 'Montserrat', sans-serif; font-size: 14px;"></p>
+            <img src="assets/screenshots/down6.png" class="img-thumbnail">
+        </div>
+
+        <div style="display: block; margin: 30px auto;">
+            <h3 style="font-family: 'Montserrat', sans-serif; font-size: 18px; font-weight: bold;">
+                Regular Bill.</h3>
+            <p style="font-weight: 400; font-family: 'Montserrat', sans-serif; font-size: 14px;">
+                </p>
+            <img src="assets/screenshots/down7.png" class="img-thumbnail">
+        </div>
+
+    </div>
+</div>
+<!-- END OF SCREENSHOTS SECTION -->
+
+<!-- RELATED PRODUCTS -->
+<div class="d-flex align-items-center"
+     style="border-bottom: 2px solid #714B67; padding: 15px 0px;">
+    <div class="d-flex justify-content-center align-items-center mr-2"
+         style="background-color: #F5F5F5; border-radius: 0px; width: 40px; height: 40px;">
+        <img src="assets/misc/categories.png"/>
+    </div>
+    <h2 class="mt-2"
+        style="font-family: 'Montserrat', sans-serif; font-size: 24px; font-weight: bold;">
+        Related
+        Products
+    </h2>
+</div>
+<div class="row">
+    <div class="col-sm-12">
+        <div id="demo1" class="row carousel slide" data-ride="carousel">
+            <!-- The slideshow -->
+            <div class="carousel-inner" style="padding: 30px;">
+                <div class="carousel-item" style="min-height: 198.656px;">
+                    <div class="col-xs-12 col-sm-4 col-md-4 mb16 mt16"
+                         style="float:left">
+                        <a href="https://apps.odoo.com/apps/modules/16.0/dynamic_accounts_report/"
+                           target="_blank">
+                            <div style="border-radius:10px">
+                                <img class="img img-responsive center-block"
+                                     style="border-radius: 0px;"
+                                     src="assets/modules/1.png">
+                            </div>
+                        </a>
+                    </div>
+                    <div class="col-xs-12 col-sm-4 col-md-4 mb16 mt16"
+                         style="float:left">
+                        <a href="https://apps.odoo.com/apps/modules/16.0/project_task_timer/"
+                           target="_blank">
+                            <div style="border-radius:10px">
+                                <img class="img img-responsive center-block"
+                                     style="border-radius: 0px;"
+                                     src="assets/modules/2.png">
+                            </div>
+                        </a>
+                    </div>
+                    <div class="col-xs-12 col-sm-4 col-md-4 mb16 mt16"
+                         style="float:left">
+                        <a href="https://apps.odoo.com/apps/modules/16.0/project_report_pdf/"
+                           target="_blank">
+                            <div style="border-radius:10px">
+                                <img class="img img-responsive center-block"
+                                     style="border-radius: 0px;"
+                                     src="assets/modules/3.png">
+                            </div>
+                        </a>
+                    </div>
+                </div>
+                <div class="carousel-item active"
+                     style="min-height: 198.656px;">
+                    <div class="col-xs-12 col-sm-4 col-md-4 mb16 mt16"
+                         style="float:left">
+                        <a href="https://apps.odoo.com/apps/modules/16.0/projects_task_checklists/"
+                           target="_blank">
+                            <div style="border-radius:10px">
+                                <img class="img img-responsive center-block"
+                                     style="border-radius: 0px;"
+                                     src="assets/modules/4.png">
+                            </div>
+                        </a>
+                    </div>
+                    <div class="col-xs-12 col-sm-4 col-md-4 mb16 mt16"
+                         style="float:left">
+                        <a href="https://apps.odoo.com/apps/modules/16.0/task_deadline_reminder/"
+                           target="_blank">
+                            <div style="border-radius:10px">
+                                <img class="img img-responsive center-block"
+                                     style="border-radius: 0px;"
+                                     src="assets/modules/5.png">
+                            </div>
+                        </a>
+                    </div>
+                    <div class="col-xs-12 col-sm-4 col-md-4 mb16 mt16"
+                         style="float:left">
+                        <a href="https://apps.odoo.com/apps/modules/16.0/print_minutes_of_meeting/"
+                           target="_blank">
+                            <div style="border-radius:10px">
+                                <img class="img img-responsive center-block"
+                                     style="border-radius: 0px;"
+                                     src="assets/modules/6.png">
+                            </div>
+                        </a>
+                    </div>
+                </div>
+            </div>
+            <!-- Left and right controls -->
+            <a class="carousel-control-prev" href="#demo1" data-slide="prev"
+               style="width:35px; color:#000"> <span
+                    class="carousel-control-prev-icon"><i
+                    class="fa fa-chevron-left"
+                    style="font-size:24px"></i></span>
+            </a> <a class="carousel-control-next" href="#demo1"
+                    data-slide="next" style="width:35px; color:#000">
+                <span class="carousel-control-next-icon"><i
+                        class="fa fa-chevron-right"
+                        style="font-size:24px"></i></span>
+        </a>
+        </div>
+    </div>
+</div>
+<!-- END OF RELATED PRODUCTS -->
+
+<!-- OUR SERVICES -->
+
+<div class="d-flex align-items-center"
+     style="border-bottom: 2px solid #714B67; padding: 15px 0px;">
+    <div class="d-flex justify-content-center align-items-center mr-2"
+         style="background-color: #F5F5F5; border-radius: 0px; width: 40px; height: 40px;">
+        <img src="assets/misc/star.png"/>
+    </div>
+    <h2 class="mt-2"
+        style="font-family: 'Montserrat', sans-serif; font-size: 24px; font-weight: bold;">
+        Our Services
+    </h2>
+</div>
+
+<div class="container my-5">
+    <div class="row">
+        <div class="col-lg-4 d-flex flex-column justify-content-center align-items-center my-4">
+            <div class="d-flex justify-content-center align-items-center mx-3 my-3"
+                 style="background-color: #1dd1a1 !important; border-radius: 15px !important; height: 80px; width: 80px;">
+                <img src="assets/icons/cogs.png" class="img-responsive"
+                     height="48px" width="48px">
+            </div>
+            <h6 class="text-center"
+                style="font-family: Montserrat, 'sans-serif' !important; font-weight: bold;">
+                Odoo
+                Customization</h6>
+        </div>
+
+        <div class="col-lg-4 d-flex flex-column justify-content-center align-items-center my-4">
+            <div class="d-flex justify-content-center align-items-center mx-3 my-3"
+                 style="background-color: #ff6b6b !important; border-radius: 15px !important; height: 80px; width: 80px;">
+                <img src="assets/icons/wrench.png" class="img-responsive"
+                     height="48px" width="48px">
+            </div>
+            <h6 class="text-center"
+                style="font-family: Montserrat, 'sans-serif' !important; font-weight: bold;">
+                Odoo
+                Implementation</h6>
+        </div>
+
+        <div class="col-lg-4 d-flex flex-column justify-content-center align-items-center my-4">
+            <div class="d-flex justify-content-center align-items-center mx-3 my-3"
+                 style="background-color: #6462CD !important; border-radius: 15px !important; height: 80px; width: 80px;">
+                <img src="assets/icons/lifebuoy.png" class="img-responsive"
+                     height="48px" width="48px">
+            </div>
+            <h6 class="text-center"
+                style="font-family: Montserrat, 'sans-serif' !important; font-weight: bold;">
+                Odoo
+                Support</h6>
+        </div>
+
+
+        <div class="col-lg-4 d-flex flex-column justify-content-center align-items-center my-4">
+            <div class="d-flex justify-content-center align-items-center mx-3 my-3"
+                 style="background-color: #ffa801 !important; border-radius: 15px !important; height: 80px; width: 80px;">
+                <img src="assets/icons/user.png" class="img-responsive"
+                     height="48px" width="48px">
+            </div>
+            <h6 class="text-center"
+                style="font-family: Montserrat, 'sans-serif' !important; font-weight: bold;">
+                Hire
+                Odoo
+                Developer</h6>
+        </div>
+
+        <div class="col-lg-4 d-flex flex-column justify-content-center align-items-center my-4">
+            <div class="d-flex justify-content-center align-items-center mx-3 my-3"
+                 style="background-color: #54a0ff  !important; border-radius: 15px !important; height: 80px; width: 80px;">
+                <img src="assets/icons/puzzle.png" class="img-responsive"
+                     height="48px" width="48px">
+            </div>
+            <h6 class="text-center"
+                style="font-family: Montserrat, 'sans-serif' !important; font-weight: bold;">
+                Odoo
+                Integration</h6>
+        </div>
+
+        <div class="col-lg-4 d-flex flex-column justify-content-center align-items-center my-4">
+            <div class="d-flex justify-content-center align-items-center mx-3 my-3"
+                 style="background-color: #6d7680 !important; border-radius: 15px !important; height: 80px; width: 80px;">
+                <img src="assets/icons/update.png" class="img-responsive"
+                     height="48px" width="48px">
+            </div>
+            <h6 class="text-center"
+                style="font-family: Montserrat, 'sans-serif' !important; font-weight: bold;">
+                Odoo
+                Migration</h6>
+        </div>
+
+
+        <div class="col-lg-4 d-flex flex-column justify-content-center align-items-center my-4">
+            <div class="d-flex justify-content-center align-items-center mx-3 my-3"
+                 style="background-color: #786fa6 !important; border-radius: 15px !important; height: 80px; width: 80px;">
+                <img src="assets/icons/consultation.png" class="img-responsive"
+                     height="48px" width="48px">
+            </div>
+            <h6 class="text-center"
+                style="font-family: Montserrat, 'sans-serif' !important; font-weight: bold;">
+                Odoo
+                Consultancy</h6>
+        </div>
+
+        <div class="col-lg-4 d-flex flex-column justify-content-center align-items-center my-4">
+            <div class="d-flex justify-content-center align-items-center mx-3 my-3"
+                 style="background-color: #f8a5c2 !important; border-radius: 15px !important; height: 80px; width: 80px;">
+                <img src="assets/icons/training.png" class="img-responsive"
+                     height="48px" width="48px">
+            </div>
+            <h6 class="text-center"
+                style="font-family: Montserrat, 'sans-serif' !important; font-weight: bold;">
+                Odoo
+                Implementation</h6>
+        </div>
+
+        <div class="col-lg-4 d-flex flex-column justify-content-center align-items-center my-4">
+            <div class="d-flex justify-content-center align-items-center mx-3 my-3"
+                 style="background-color: #e6be26 !important; border-radius: 15px !important; height: 80px; width: 80px;">
+                <img src="assets/icons/license.png" class="img-responsive"
+                     height="48px" width="48px">
+            </div>
+            <h6 class="text-center"
+                style="font-family: Montserrat, 'sans-serif' !important; font-weight: bold;">
+                Odoo
+                Licensing Consultancy</h6>
+        </div>
+    </div>
+
+</div>
+
+<!-- END OF END OF OUR SERVICES -->
+
+<!-- OUR INDUSTRIES -->
+
+<div class="d-flex align-items-center"
+     style="border-bottom: 2px solid #714B67; padding: 15px 0px;">
+    <div class="d-flex justify-content-center align-items-center mr-2"
+         style="background-color: #F5F5F5; border-radius: 0px; width: 40px; height: 40px;">
+        <img src="assets/misc/corporate.png"/>
+    </div>
+    <h2 class="mt-2"
+        style="font-family: 'Montserrat', sans-serif; font-size: 24px; font-weight: bold;">
+        Our
+        Industries
+    </h2>
+</div>
+
+<div class="container my-5">
+    <div class="row">
+        <div class="col-lg-3">
+            <div class="my-4 d-flex flex-column justify-content-center"
+                 style="background-color: #f6f8f9 !important; border-radius: 0px; padding: 2rem !important; height: 250px !important;">
+                <img src="assets/icons/trading-black.png"
+                     class="img-responsive mb-3" height="48px" width="48px">
+                <h5 style="font-family: Montserrat, sans-serif !important; color: #000 !important; font-weight: bold;">
+                    Trading
+                </h5>
+                <p style="font-family: Montserrat, sans-serif !important; font-size: 0.9rem !important;">
+                    Easily procure
+                    and
+                    sell your products</p>
+            </div>
+        </div>
+
+        <div class="col-lg-3">
+            <div class="my-4 d-flex flex-column justify-content-center"
+                 style="background-color: #f6f8f9 !important; border-radius: 0px; padding: 2rem !important; height: 250px !important;">
+                <img src="assets/icons/pos-black.png"
+                     class="img-responsive mb-3" height="48px" width="48px">
+                <h5 style="font-family: Montserrat, sans-serif !important; color: #000 !important; font-weight: bold;">
+                    POS
+                </h5>
+                <p style="font-family: Montserrat, sans-serif !important; font-size: 0.9rem !important;">
+                    Easy
+                    configuration
+                    and convivial experience</p>
+            </div>
+        </div>
+
+        <div class="col-lg-3">
+            <div class="my-4 d-flex flex-column justify-content-center"
+                 style="background-color: #f6f8f9 !important; border-radius: 0px; padding: 2rem !important; height: 250px !important;">
+                <img src="assets/icons/education-black.png"
+                     class="img-responsive mb-3" height="48px" width="48px">
+                <h5 style="font-family: Montserrat, sans-serif !important; color: #000 !important; font-weight: bold;">
+                    Education
+                </h5>
+                <p style="font-family: Montserrat, sans-serif !important; font-size: 0.9rem !important;">
+                    A platform for
+                    educational management</p>
+            </div>
+        </div>
+
+        <div class="col-lg-3">
+            <div class="my-4 d-flex flex-column justify-content-center"
+                 style="background-color: #f6f8f9 !important; border-radius: 0px; padding: 2rem !important; height: 250px !important;">
+                <img src="assets/icons/manufacturing-black.png"
+                     class="img-responsive mb-3" height="48px"
+                     width="48px">
+                <h5 style="font-family: Montserrat, sans-serif !important; color: #000 !important; font-weight: bold;">
+                    Manufacturing
+                </h5>
+                <p style="font-family: Montserrat, sans-serif !important; font-size: 0.9rem !important;">
+                    Plan, track and
+                    schedule your operations</p>
+            </div>
+        </div>
+
+        <div class="col-lg-3">
+            <div class="my-4 d-flex flex-column justify-content-center"
+                 style="background-color: #f6f8f9 !important; border-radius: 0px; padding: 2rem !important; height: 250px !important;">
+                <img src="assets/icons/ecom-black.png"
+                     class="img-responsive mb-3" height="48px" width="48px">
+                <h5 style="font-family: Montserrat, sans-serif !important; color: #000 !important; font-weight: bold;">
+                    E-commerce &amp; Website
+                </h5>
+                <p style="font-family: Montserrat, sans-serif !important; font-size: 0.9rem !important;">
+                    Mobile
+                    friendly,
+                    awe-inspiring product pages</p>
+            </div>
+        </div>
+
+        <div class="col-lg-3">
+            <div class="my-4 d-flex flex-column justify-content-center"
+                 style="background-color: #f6f8f9 !important; border-radius: 0px; padding: 2rem !important; height: 250px !important;">
+                <img src="assets/icons/service-black.png"
+                     class="img-responsive mb-3" height="48px" width="48px">
+                <h5 style="font-family: Montserrat, sans-serif !important; color: #000 !important; font-weight: bold;">
+                    Service Management
+                </h5>
+                <p style="font-family: Montserrat, sans-serif !important; font-size: 0.9rem !important;">
+                    Keep track of
+                    services and invoice</p>
+            </div>
+        </div>
+
+        <div class="col-lg-3">
+            <div class="my-4 d-flex flex-column justify-content-center"
+                 style="background-color: #f6f8f9 !important; border-radius: 0px; padding: 2rem !important; height: 250px !important;">
+                <img src="assets/icons/restaurant-black.png"
+                     class="img-responsive mb-3" height="48px" width="48px">
+                <h5 style="font-family: Montserrat, sans-serif !important; color: #000 !important; font-weight: bold;">
+                    Restaurant
+                </h5>
+                <p style="font-family: Montserrat, sans-serif !important; font-size: 0.9rem !important;">
+                    Run your bar or
+                    restaurant methodically</p>
+            </div>
+        </div>
+
+        <div class="col-lg-3">
+            <div class="my-4 d-flex flex-column justify-content-center"
+                 style="background-color: #f6f8f9 !important; border-radius: 0px; padding: 2rem !important; height: 250px !important;">
+                <img src="assets/icons/hotel-black.png"
+                     class="img-responsive mb-3" height="48px" width="48px">
+                <h5 style="font-family: Montserrat, sans-serif !important; color: #000 !important; font-weight: bold;">
+                    Hotel Management
+                </h5>
+                <p style="font-family: Montserrat, sans-serif !important; font-size: 0.9rem !important;">
+                    An
+                    all-inclusive
+                    hotel management application</p>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- END OF END OF OUR INDUSTRIES -->
+
+<!-- SUPPORT -->
+<div class="d-flex align-items-center"
+     style="border-bottom: 2px solid #714B67; padding: 15px 0px;">
+    <div class="d-flex justify-content-center align-items-center mr-2"
+         style="background-color: #F5F5F5; border-radius: 0px; width: 40px; height: 40px;">
+        <img src="assets/misc/customer-support.png"/>
+    </div>
+    <h2 class="mt-2"
+        style="font-family: 'Montserrat', sans-serif; font-size: 24px; font-weight: bold;">
+        Support
+    </h2>
+</div>
+<div class="container mt-5">
+    <div class="row">
+        <div class="col-sm-12 col-md-6">
+            <div style="background-color: #F6F8F9; padding: 30px; display: flex; align-items: center;">
+                <div class="mr-4"
+                     style="background-color: #714B67; display: inline-block; height: 70px; width: 70px; display: flex; align-items: center; justify-content: center;">
+                    <img src="assets/misc/support.png" height="48" width="48"
+                         style="width: 42px; height: 42px;"/>
+                </div>
+                <div>
+                    <h4>Need Help?</h4>
+                    <p style="line-height: 100%;">Got questions or need help?
+                        Get in touch.</p>
+                    <a href="mailto:odoo@cybrosys.com">
+                        <p style="font-weight: 400; font-size: 28px; line-height: 80%; color: #714B67;">
+                            odoo@cybrosys.com</p>
+                    </a>
+                </div>
+            </div>
+        </div>
+        <div class="col-sm-12 col-md-6">
+            <div style="background-color: #F6F8F9; padding: 30px; display: flex; align-items: center;">
+                <div class="mr-4"
+                     style="background-color: #2AC44D; display: inline-block; height: 70px; width: 70px; display: flex; align-items: center; justify-content: center;">
+                    <img src="assets/misc/whatsapp.png" height="52" width="52"
+                         style="width: 52px; height: 52px;"/>
+                </div>
+                <div>
+                    <h4>WhatsApp</h4>
+                    <p style="line-height: 100%;">Say hi to us on WhatsApp!</p>
+                    <a href="https://api.whatsapp.com/send?phone=918606827707">
+                        <p style="font-weight: 400; font-size: 28px; line-height: 80%; color: #714B67;">
+                            +91 86068
+                            27707</p>
+                    </a>
+                </div>
+            </div>
+        </div>
+    </div>
+    <div class="row">
+        <div class="col-sm-12 my-5 d-flex justify-content-center align-items-center">
+            <img src="assets/misc/logo.png" width="144" height="31"
+                 style="width:144px; height: 31px; margin-top: 40px;"/>
+        </div>
+    </div>
+</div>
+<!-- END OF SUPPORT -->

purchase_down_payment/views/purchase_order_views.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <!--   Inherited the Purchase Order form view to add a new button -->
+    <record id="purchase_order_view_form" model="ir.ui.view">
+        <field name="name">purchase.order.view.form.inherit.purchase.down.payment</field>
+        <field name="model">purchase.order</field>
+        <field name="inherit_id" ref="purchase.purchase_order_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//header/button[@name='action_create_invoice']"
+                   position="replace">
+                <button name="%(purchase_down_payment.action_purchase_bill_advance)d"
+                        string="Create Bill"
+                        attrs="{'invisible': ['|', ('state', 'not in', ('purchase', 'done')), ('invoice_status', 'in', ('no', 'invoiced'))]}"
+                        type="action" data-hotkey="w"/>
+            </xpath>
+        </field>
+    </record>
+</odoo>

purchase_down_payment/views/res_config_settings_views.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<odoo>
+    <!--        Inherited the Res Config Settings to add new field on it-->
+    <record id="res_config_settings_view_form" model="ir.ui.view">
+        <field name="name">
+            res.config.settings.view.form.inherit.purchase.down.payment
+        </field>
+        <field name="model">res.config.settings</field>
+        <field name="priority" eval="95"/>
+        <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//div[@name='matrix_setting_container']"
+                   position="inside">
+                <div class="col-12 col-lg-6 o_setting_box">
+                    <div class="o_setting_left_pane"/>
+                    <div class="o_setting_right_pane">
+                        <span class="o_form_label">Down Payment</span>
+                        <div class="text-muted">
+                            Product used for down payments in purchase bill
+                        </div>
+                        <div class="text-muted">
+                            <field name="po_deposit_default_product_id"/>
+                        </div>
+                    </div>
+                </div>
+            </xpath>
+        </field>
+    </record>
+</odoo>

purchase_down_payment/wizards/__init__.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+################################################################################
+#
+#    Cybrosys Technologies Pvt. Ltd.
+#
+#    Copyright (C) 2023-TODAY Cybrosys Technologies(<https://www.cybrosys.com>).
+#    Author: Aswathi PN (odoo@cybrosys.com)
+#
+#    You can modify it under the terms of the GNU AFFERO
+#    GENERAL PUBLIC LICENSE (AGPL v3), Version 3.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU AFFERO GENERAL PUBLIC LICENSE (AGPL v3) for more details.
+#
+#    You should have received a copy of the GNU AFFERO GENERAL PUBLIC LICENSE
+#    (AGPL v3) along with this program.
+##############################################################################
+from . import purchase_order_advance_payment

purchase_down_payment/wizards/purchase_order_advance_payment.py

@@ -0,0 +1,239 @@
+# -*- coding: utf-8 -*-
+################################################################################
+#
+#    Cybrosys Technologies Pvt. Ltd.
+#
+#    Copyright (C) 2023-TODAY Cybrosys Technologies(<https://www.cybrosys.com>).
+#    Author: Aswathi PN (odoo@cybrosys.com)
+#
+#    You can modify it under the terms of the GNU AFFERO
+#    GENERAL PUBLIC LICENSE (AGPL v3), Version 3.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU AFFERO GENERAL PUBLIC LICENSE (AGPL v3) for more details.
+#
+#    You should have received a copy of the GNU AFFERO GENERAL PUBLIC LICENSE
+#    (AGPL v3) along with this program.
+##############################################################################
+import time
+from datetime import datetime
+
+from odoo import api, fields, models, _
+from odoo.exceptions import UserError
+from odoo.fields import Command
+
+
+class PurchaseOrderAdvancePayment(models.TransientModel):
+    """The class is created to creating a new model purchase order advance payment. """
+    _name = 'purchase.order.advance.payment'
+    _description = 'Purchase Order Advance Payment Bill'
+
+    @api.model
+    def _default_product_id(self):
+        """Function to fetch the purchase down payment default product"""
+        product_id = self.env['ir.config_parameter'].sudo().get_param(
+            'purchase_down_payment.po_deposit_default_product_id')
+        return self.env['product.product'].browse(int(product_id)).exists()
+
+    @api.model
+    def _default_currency_id(self):
+        """Function to fetch the currency_id from purchase order"""
+        if self._context.get(
+                'active_model') == 'purchase.order' and self._context.get(
+            'active_id', False):
+            purchase_order = self.env['purchase.order'].browse(
+                self._context.get('active_id'))
+            return purchase_order.currency_id
+
+    @api.model
+    def _default_has_down_payment(self):
+        """Function to check the Purchase order has down payment or not"""
+        if self._context.get(
+                'active_model') == 'purchase.order' and self._context.get(
+            'active_id', False):
+            purchase_order = self.env['purchase.order'].browse(
+                self._context.get('active_id'))
+            return purchase_order.order_line.filtered(
+                lambda purchase_order_line: purchase_order_line.is_downpayment
+            )
+        return False
+
+    advance_payment_method = fields.Selection([
+        ('delivered', 'Regular bill'),
+        ('percentage', 'Down payment (percentage)'),
+        ('fixed', 'Down payment (fixed amount)')
+    ], string='Create Bill', default='delivered', required=True,
+        help="A standard bill is issued with all the order lines ready for billing, \
+        according to their billing policy (based on ordered or delivered quantity).")
+    has_down_payments = fields.Boolean('Has down payments',
+                                       default=_default_has_down_payment,
+                                       readonly=True, help='To check the invoice in down payment or not')
+    product_id = fields.Many2one('product.product',
+                                 string='Down Payment Product',
+                                 domain=[('type', '=', 'service')],
+                                 default=_default_product_id, help='To add the down payment product')
+    deduct_down_payments = fields.Boolean('Deduct down payments', default=False,
+                                          help='To mention the down payment amount deduct to next invoice')
+    amount = fields.Float('Down Payment Amount', digits='Account',
+                          help="The percentage of amount to be bill in advance, taxes excluded.")
+    currency_id = fields.Many2one('res.currency', string='Currency',
+                                  default=_default_currency_id, help='Default company currency')
+    fixed_amount = fields.Monetary('Down Payment Amount (Fixed)',
+                                   help="The fixed amount to be bill in advance, taxes excluded.")
+    deposit_account_id = fields.Many2one(
+        comodel_name='account.account',
+        string="Income Account",
+        domain=[('deprecated', '=', False)],
+        help="Account used for deposits")
+    deposit_taxes_ids = fields.Many2many(
+        comodel_name='account.tax',
+        string="Customer Taxes",
+        domain=[('type_tax_use', '=', 'purchase')],
+        help="Taxes used for deposits")
+
+    def _get_advance_details(self, order):
+        """Function to find get the down payment amount and purchase order"""
+        context = {'lang': order.partner_id.lang}
+        if self.advance_payment_method == 'percentage':
+            if all(self.product_id.taxes_id.mapped('price_include')):
+                amount = order.amount_total * self.amount / 100
+            else:
+                amount = order.amount_untaxed * self.amount / 100
+            name = _("Down payment of %s%%") % (self.amount)
+        else:
+            amount = self.fixed_amount
+            name = _('Down Payment')
+        del context
+
+        return amount, name
+
+    def _prepare_po_line(self, order, tax_ids, amount):
+        """Function to getting the purchase order line data"""
+        context = {'lang': order.partner_id.lang}
+
+        po_values = {
+            'name': _('Down Payment: %s / %s') % (time.strftime('%m-%Y-%d'), order.name),
+            'price_unit': amount,
+            'product_uom_qty': 0.0,
+            'product_qty': 0.0,
+            'order_id': order.id,
+            'product_uom': self.product_id.uom_id.id,
+            'product_id': self.product_id.id,
+            'taxes_id': [(6, 0, tax_ids)],
+            'is_downpayment': True,
+            'sequence': order.order_line and order.order_line[
+                -1].sequence + 1 or 10,
+            'date_planned': datetime.today(),
+        }
+        del context
+        return po_values
+
+    def _prepare_invoice_values(self, order, name, amount, so_line):
+        """Function for take invoice values"""
+        invoice_vals = {
+            'ref': order.partner_ref or '',
+            'move_type': 'in_invoice',
+            'invoice_origin': order.name,
+            'invoice_user_id': order.user_id.id,
+            'narration': order.notes,
+            'partner_id': order.partner_id.id,
+            'fiscal_position_id': (
+                    order.fiscal_position_id or order.fiscal_position_id._get_fiscal_position(
+                order.partner_id)).id,
+            'currency_id': order.currency_id.id,
+            'payment_reference': order.partner_ref or '',
+            'invoice_payment_term_id': order.payment_term_id.id,
+            'partner_bank_id': order.company_id.partner_id.bank_ids[:1].id,
+            'invoice_line_ids': [(0, 0, {
+                'name': name,
+                'price_unit': amount,
+                'quantity': 1.0,
+                'product_id': self.product_id.id,
+                'purchase_line_id': so_line.id,
+                'product_uom_id': so_line.product_uom.id,
+            })],
+        }
+
+        return invoice_vals
+
+    def _create_bill(self, order, so_line, amount):
+        """Function for creating the purchase bill"""
+        if (
+                self.advance_payment_method == 'percentage' and self.amount <= 0.00) or (
+                self.advance_payment_method == 'fixed' and self.fixed_amount <= 0.00):
+            raise UserError(
+                _('The value of the down payment amount must be positive.'))
+
+        amount, name = self._get_advance_details(order)
+
+        invoice_vals = self._prepare_invoice_values(order, name, amount,
+                                                    so_line)
+
+        if order.fiscal_position_id:
+            invoice_vals['fiscal_position_id'] = order.fiscal_position_id.id
+
+        invoice = self.env['account.move'].with_company(order.company_id) \
+            .sudo().create(invoice_vals).with_user(self.env.uid)
+
+        invoice.message_post_with_view('mail.message_origin_link',
+                                       values={'self': invoice,
+                                               'origin': order},
+                                       subtype_id=self.env.ref(
+                                           'mail.mt_note').id)
+        return invoice
+
+    def _prepare_down_payment_product_values(self):
+        return {
+            'name': _('Down payment'),
+            'type': 'service',
+            'invoice_policy': 'order',
+            'company_id': False,
+            'property_account_income_id': self.deposit_account_id.id,
+            'taxes_id': [Command.set(self.deposit_taxes_ids.ids)],
+        }
+
+    def create_advance_bill(self):
+        """Function for creating purchase down payment bill"""
+        purchase_order = self.env['purchase.order'].browse(
+            self._context.get('active_ids', []))
+
+        if self.advance_payment_method == 'delivered':
+            if self.deduct_down_payments:
+                purchase_order._deduct_payment(final=self.deduct_down_payments)
+            else:
+                purchase_order.action_create_invoice()
+        else:
+            if not self.product_id:
+                vals = self._prepare_down_payment_product_values()
+                self.product_id = self.env['product.product'].create(vals)
+                self.env['ir.config_parameter'].sudo().set_param(
+                    'purchase_down_payment.po_deposit_default_product_id',
+                    self.product_id.id)
+
+            purchase_line_obj = self.env['purchase.order.line']
+            for order in purchase_order:
+                amount, name = self._get_advance_details(order)
+                if self.product_id.invoice_policy != 'order':
+                    raise UserError(
+                        _('The product used to invoice a down payment should have an invoice policy set to "Ordered quantities". Please update your deposit product to be able to create a deposit invoice.'))
+                if self.product_id.type != 'service':
+                    raise UserError(
+                        _("The product used to invoice a down payment should be of type 'Service'. Please use another product or update this product."))
+                taxes = self.product_id.taxes_id.filtered(
+                    lambda
+                        r: not order.company_id or r.company_id == order.company_id)
+                tax_ids = order.fiscal_position_id.map_tax(taxes).ids
+
+                po_line_values = self._prepare_po_line(order,
+                                                       tax_ids, amount)
+                po_line = purchase_line_obj.create(po_line_values)
+                self._create_bill(order, po_line, amount)
+                if self._context.get('open_invoices', False):
+                    return purchase_order.action_view_invoice()
+            return {'type': 'ir.actions.act_window_close'}
+
+        if self._context.get('open_invoices', False):
+            return purchase_order.action_view_invoice()
+        return {'type': 'ir.actions.act_window_close'}

purchase_down_payment/wizards/purchase_order_advance_payment_views.xml

@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <!--    Purchase Order Advance Payment Wizard-->
+    <record id="purchase_order_advance_payment_view_form" model="ir.ui.view">
+        <field name="name">purchase.order.advance.payment.view.form.purchase.down.payment</field>
+        <field name="model">purchase.order.advance.payment</field>
+        <field name="arch" type="xml">
+            <form string="Purchase Order Advance Bill">
+                <p class="oe_grey">
+                    Bills will be created in draft so that you can review them
+                    before validation.
+                </p>
+                <group>
+                    <field name="advance_payment_method" class="oe_inline"
+                           widget="radio"/>
+                    <field name="has_down_payments" invisible="1"/>
+                    <label for="deduct_down_payments" string=""
+                           attrs="{'invisible': ['|', ('has_down_payments', '=', False), ('advance_payment_method', '!=', 'delivered')]}"/>
+                    <div attrs="{'invisible': ['|', ('has_down_payments', '=', False), ('advance_payment_method', '!=', 'delivered')]}"
+                         id="down_payment_details">
+                        <field name="deduct_down_payments" nolabel="1"/>
+                        <label for="deduct_down_payments"/>
+                    </div>
+                    <label for="amount"
+                           attrs="{'invisible': [('advance_payment_method', 'not in', ('fixed','percentage'))]}"/>
+                    <div attrs="{'invisible': [('advance_payment_method', 'not in', ('fixed','percentage'))]}"
+                         id="payment_method_details">
+                        <field name="currency_id" invisible="1"/>
+                        <field name="fixed_amount"
+                               attrs="{'required': [('advance_payment_method', '=', 'fixed')], 'invisible': [('advance_payment_method', '!=','fixed')]}"
+                               class="oe_inline"/>
+                        <field name="amount"
+                               attrs="{'required': [('advance_payment_method', '=', 'percentage')], 'invisible': [('advance_payment_method', '!=', 'percentage')]}"
+                               class="oe_inline"/>
+                        <span
+                                attrs="{'invisible': [('advance_payment_method', '!=', 'percentage')]}"
+                                class="oe_inline">%
+                        </span>
+                    </div>
+                    <field name="product_id"
+                           context="{'default_invoice_policy': 'order'}"
+                           class="oe_inline"
+                           attrs="{'invisible': [('advance_payment_method', 'not in', ('fixed','percentage'))]}"/>
+                </group>
+                <footer>
+                    <button name="create_advance_bill"
+                            string="Create and View Bill" type="object"
+                            context="{'open_invoices': True}"
+                            class="btn-primary" data-hotkey="q"/>
+                    <button name="create_advance_bill" id="create_advance_bill"
+                            string="Create Bill" type="object"
+                            data-hotkey="w"/>
+                    <button string="Cancel" class="btn-secondary"
+                            special="cancel" data-hotkey="z"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+
+    <!--Purchase Order Advance Payment Wizard action-->
+    <record id="action_purchase_bill_advance" model="ir.actions.act_window">
+        <field name="name">Create Bill</field>
+        <field name="type">ir.actions.act_window</field>
+        <field name="res_model">purchase.order.advance.payment</field>
+        <field name="view_mode">form</field>
+        <field name="target">new</field>
+        <field name="binding_model_id" ref="purchase.model_purchase_order"/>
+        <field name="binding_view_types">list</field>
+    </record>
+</odoo>