[ADD] osi_quote_downpayment: allows downpayments on quotes

osi_quote_downpayment/__init__.py

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+from . import models

osi_quote_downpayment/__manifest__.py

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+# Copyright (C) 2024, Open Source Integrators
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+{
+    "name": "OSI Quote Downpayment",
+    "version": "17.0.1.0.0",
+    "license": "AGPL-3",
+    "author": "Open Source Integrators",
+    "category": "Sales",
+    "maintainer": "Open Source Integrators",
+    "summary": "Allow downpayments on Quote",
+    "website": "https://github.com/ursais/osi-addons",
+    "depends": [
+        "sale",
+        "account",
+    ],
+    "data": [
+        "views/sale_order_views.xml",
+        "wizards/sale_make_invoice_advance_views.xml",
+    ],
+    "installable": True,
+    "maintainers": ["bodedra"],
+}

osi_quote_downpayment/models/__init__.py

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+from . import account_move

osi_quote_downpayment/models/account_move.py

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+# Copyright (C) 2019 - 2021, Open Source Integrators
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class AccountMove(models.Model):
+    _inherit = "account.move"
+
+    #Prevents price of downpayment from being reset on draft sale orders
+    def action_post(self):
+        downpayment_lines = {}
+        for rec in records:
+            downpayment_lines[rec.id] = {}
+            for line in rec.invoice_line_ids:
+                if "Down payment" in line.name:
+                    downpayment_lines[rec.id][line.id] = line.price_unit
+        res = super().action_post()
+        for rec in records:
+            for line in rec.invoice_line_ids:
+                if "Down payment" in line.name:
+                    downpayment_lines[rec.id][line.id] = line.price_unit
+        return res

osi_quote_downpayment/views/sale_order_views.xml

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+<odoo>
+
+    <record id="sale_order_form_view_inherit" model="ir.ui.view">
+        <field name="name">sale.order.form.view.inherit</field>
+        <field name="model">sale.order</field>
+        <field name="type">form</field>
+        <field name="inherit_id" ref="sale.view_order_form" />
+        <field name="arch" type="xml">
+            <xpath expr="//button[@id='create_invoice']" position="attributes">
+               <attribute name="invisible">invoice_status != 'to invoice' or state in ['draft', 'sent']</attibute>
+            </xpath>
+        </field>
+    </record>
+
+</odoo>

osi_quote_downpayment/wizards/sale_make_invoice_advance_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="sale_make_invoice_advance_view_inherit" model="ir.ui.view">
+        <field name="name">sale.make.invoice.advance.view.inherit</field>
+        <field name="model">sale.advance.payment.inv</field>
+        <field name="type">form</field>
+        <field name="inherit_id" ref="sale.view_sale_advance_payment_inv" />
+        <field name="arch" type="xml">
+            <xpath expr="//field[@name='advance_payment_method']" position="after">
+               <field name="deduct_down_payments" invisible="advance_payment_method != 'delivered'"/>
+            </xpath>
+        </field>
+    </record>
+
+</odoo>