[ADD] add_product_warranty: allow adding warranty lines to sale orders

-Introduced a new field is_warranty_available on product template to indicate
 whether a product is eligible for a warranty.
-Added a Warranty Configuration model to define warranty products, duration, and
 pricing rules.
-Created a new menu item for Warranty Configuration under the Sales module.
-Added an "Add Warranty" button on the sale order form to allow users to add
  warranties for selected products.
-Implemented a wizard that opens upon clicking "Add Warranty", enabling users to
 choose warranty options.
-Ensured warranty prices are computed based on product price and warranty
 percentage.
-Automatically removes the warranty when the associated product is deleted from
 the order.

Task-5079801

Author: pusu-odoo

add_product_warranty/__init__.py

@@ -0,0 +1,2 @@
+from . import models
+from . import wizard

add_product_warranty/__manifest__.py

@@ -0,0 +1,15 @@
+{
+    "name": "Product Warranty",
+    "description": "Adds functionality to manage product warranties in sales orders and linking warranties to products",
+    "depends": ["sale_management"],
+    "data": [
+        "security/ir.model.access.csv",
+        "wizard/sale_order_add_warranty_views.xml",
+        "views/product_template_views.xml",
+        "views/sale_order_views.xml",
+        "views/warranty_configuration_views.xml",
+        "views/warranty_configuration_menus.xml",
+    ],
+    "installable": True,
+    "license": "LGPL-3",
+}

add_product_warranty/models/__init__.py

@@ -0,0 +1,4 @@
+from . import warranty_configuration
+from . import product_template
+from . import sale_order_line
+from . import sale_order

add_product_warranty/models/product_template.py

@@ -0,0 +1,9 @@
+from odoo import fields, models
+
+
+class ProductTemplate(models.Model):
+    _inherit = "product.template"
+
+    is_warranty_available = fields.Boolean(
+        help="Indicates if the product has an associated warranty option.",
+    )

add_product_warranty/models/sale_order.py

@@ -0,0 +1,50 @@
+from odoo import api, fields, models
+
+
+class SaleOrder(models.Model):
+    _inherit = "sale.order"
+
+    show_warranty_button = fields.Boolean(
+        string="Show Warranty Button",
+        compute="_compute_show_warranty_button",
+        store=True
+    )
+
+    @api.depends("order_line")
+    def _compute_show_warranty_button(self):
+        for order in self:
+            show_button = False
+            for line in order.order_line:
+                # Check if this product has warranty available
+                if line.product_template_id.is_warranty_available:
+                    # And there is no other line that links to this line as warranty
+                    linked_as_warranty = any(
+                        l.warranty_line_linked_with_so_line == line
+                        for l in order.order_line
+                    )
+                    if not linked_as_warranty:
+                        show_button = True
+                        break  # We can stop early if condition is satisfied
+
+            order.show_warranty_button = show_button
+
+    @api.onchange("order_line")
+    def _onchange_order_line(self):
+        original_line_ids = self._origin.order_line.ids
+
+        current_line_ids = self.order_line.ids
+
+        deleted_line_ids = list(set(original_line_ids) - set(current_line_ids))
+
+        if deleted_line_ids:
+            # Remove warranty lines linked to deleted lines
+            self.order_line = [
+                (
+                    6,
+                    0,
+                    self.order_line.filtered(
+                        lambda line: line.warranty_line_linked_with_so_line.id
+                        not in deleted_line_ids
+                    ).ids,
+                )
+            ]

add_product_warranty/models/sale_order_line.py

@@ -0,0 +1,9 @@
+from odoo import fields, models
+
+
+class SaleOrderLine(models.Model):
+    _inherit = "sale.order.line"
+
+    warranty_line_linked_with_so_line = fields.Many2one(
+        "sale.order.line", ondelete="cascade"
+    )

add_product_warranty/models/warranty_configuration.py

@@ -0,0 +1,23 @@
+from odoo import fields, models
+
+
+class WarrantyConfiguration(models.Model):
+    _name = "warranty.configuration"
+    _description = "Warranty configuration for all products"
+
+    name = fields.Char(required=True)
+    period = fields.Integer(
+        string="Warranty Period (years)",
+        default=1,
+        help="Duration of the warranty period in year.",
+    )
+    percentage = fields.Float(
+        required=True,
+        help="Percentage of the product price to be charged for the warranty.",
+    )
+    product_id = fields.Many2one(
+        comodel_name="product.product",
+        string="Product",
+        required=True,
+        help="Product used to represent the warranty service.",
+    )

add_product_warranty/security/ir.model.access.csv

@@ -0,0 +1,4 @@
+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+access_warranty_configuration,warranty.configuration,model_warranty_configuration,base.group_user,1,1,1,1
+access_sale_order_add_warranty,sale.order.add.warranty,model_sale_order_add_warranty,base.group_user,1,1,1,1
+access_sale_order_add_warranty_line,sale.order.add.warranty.line,model_sale_order_add_warranty_line,base.group_user,1,1,1,1

add_product_warranty/views/product_template_views.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <record id="product_template_form_view" model="ir.ui.view">
+        <field name="name">product.template.form.view.inherit.add.prodcut.warranty</field>
+        <field name="model">product.template</field>
+        <field name="inherit_id" ref="product.product_template_form_view"/>
+        <field name="arch" type="xml">
+            <xpath expr="//page[@name='sales']" position="inside">
+                <group>
+                    <field name="is_warranty_available"/>
+                </group>
+            </xpath>
+        </field>
+    </record>
+</odoo>

add_product_warranty/views/sale_order_views.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="view_order_form" model="ir.ui.view">
+        <field name="name">view.order.form.inherit.add.product.warranty</field>
+        <field name="model">sale.order</field>
+        <field name="inherit_id" ref="sale.view_order_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//page[@name='order_lines']//button[@name='action_open_discount_wizard']" position="before">
+                <button name="add_product_warranty.action_open_warranty_wizard" string="Add Warranty" 
+                class="btn btn-secondary" type="action" invisible="not show_warranty_button"/>
+            </xpath>
+        </field>
+    </record>
+</odoo>