[ADD] product_warranty: add warranty management feature and validations

product_warranty/__init__.py

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+from . import models
+from . import wizard

product_warranty/__manifest__.py

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+{
+    'name': 'Product Warranty',
+    'version': '1.0',
+    'depends': ['sale_management'],
+    'description': """
+        This module adds warranty availabe feature for products.
+        """,
+    'data': [
+        'security/ir.model.access.csv',
+        'wizard/add_warranty_wizard_views.xml',
+        'views/product_template_views.xml',
+        'views/warranty_config_views.xml',
+        'views/warranty_config_menu.xml',
+        'views/sale_order_views.xml',
+    ],
+    'installable': True,
+    'license': 'LGPL-3'
+}

product_warranty/models/__init__.py

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+from . import product_template
+from . import warranty_config
+from . import sale_order
+from . import sale_order_line

product_warranty/models/product_template.py

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+from odoo import models, fields
+
+
+class ProductTemplate(models.Model):
+    _inherit = 'product.template'
+
+    is_warranty_available = fields.Boolean(string="Is Warranty Available")

product_warranty/models/sale_order.py

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+from odoo import models
+
+
+class SaleOrder(models.Model):
+    _inherit = "sale.order"
+
+    def open_warranty_wizard(self):
+
+        return {
+        'type': 'ir.actions.act_window',
+        'name': 'Add Warranty',
+        'res_model': 'add.warranty.wizard',
+        'view_mode': 'form',
+        'target': 'new',
+        'context': {'default_sale_order_id': self.id},
+        }

product_warranty/models/sale_order_line.py

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+from odoo import api, fields, models
+from odoo.exceptions import ValidationError
+
+
+class SaleOrderLine(models.Model):
+    _inherit = "sale.order.line"
+
+    has_warranty = fields.Boolean(string="Has Warranty")
+    order_line_linked_to_warranty = fields.Many2one(comodel_name="sale.order.line", copy=False, string="Warranty Product", ondelete="cascade")
+    is_warranty = fields.Boolean('Is Warranty')
+
+    @api.constrains('product_uom_qty')
+    def _check_warranty_qty_limit(self):
+        for line in self:
+            if line.is_warranty and line.order_line_linked_to_warranty:
+                linked_line = line.order_line_linked_to_warranty
+                if line.product_uom_qty > linked_line.product_uom_qty:
+                    raise ValidationError(
+                        f"The warranty quantity ({line.product_uom_qty}) cannot be more than the linked product quantity ({linked_line.product_uom_qty})."
+                    )
+
+            elif not line.is_warranty:
+                warranty_line = self.search([
+                    ('order_line_linked_to_warranty', '=', line.id),
+                    ('is_warranty', '=', True)
+                ], limit=1)
+
+                if warranty_line:
+                    if line.product_uom_qty < warranty_line.product_uom_qty:
+                        raise ValidationError(
+                            f"The quantity of the product ({line.product_uom_qty}) cannot be less than the linked warranty quantity ({warranty_line.product_uom_qty})."
+                        )
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_except_confirmed(self):
+        super()._unlink_except_confirmed()
+        for line in self:
+            if line.is_warranty:
+                line.order_line_linked_to_warranty.write({'has_warranty': False})

product_warranty/models/warranty_config.py

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+from odoo import models, fields
+
+
+class WarrantyConfig(models.Model):
+    _name = 'warranty.config'
+    _description = 'Warranty Configuration'
+
+    name = fields.Char(string="Name")
+    product = fields.Many2one('product.product', string="Warranty Product")
+    period = fields.Float(string='Period (in years)', default=1)
+    percentage = fields.Float(string="Percentage (%)")

product_warranty/security/ir.model.access.csv

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+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+access_warranty_config,access.warranty.config,model_warranty_config,base.group_user,1,1,1,1
+access_add_warranty_wizard,access.add.warranty.wizard,model_add_warranty_wizard,base.group_user,1,1,1,1
+access_add_warranty_lines_wizard,access.add.warranty.lines.wizard,model_add_warranty_lines_wizard,base.group_user,1,1,1,1

product_warranty/views/product_template_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="view_product_form_inherit_warranty" model="ir.ui.view">
+        <field name="name">product.template.form.warranty.inherit</field>
+        <field name="model">product.template</field>
+        <field name="inherit_id" ref="product.product_template_only_form_view"/>
+        <field name="arch" type="xml">
+            <xpath expr="//group[@name='extra_info']" position="inside">
+                <field name="is_warranty_available"/>
+            </xpath>
+        </field>
+    </record>
+</odoo>

product_warranty/views/sale_order_views.xml

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+<?xml version="1.0"?>
+<odoo>
+    <record id="sale_order_list_view_add_warranty" model="ir.ui.view">
+        <field name="name">sale.order.list.view.inherit.add.warranty</field>
+        <field name="model">sale.order</field>
+        <field name="inherit_id" ref="sale.view_order_form" />
+        <field name="arch" type="xml">
+            <xpath expr="//button[@name='action_open_discount_wizard']" position="before">
+                <button name="open_warranty_wizard"
+                        type="object"
+                        string="Add warranty"
+                        class="btn btn-secondary"/>
+            </xpath>
+        </field>
+    </record>
+</odoo>

product_warranty/views/warranty_config_menu.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <menuitem id="menu_warranty_config"
+              name="Warranty Configuration"
+              parent="sale.menu_sale_config"
+              action="action_warranty_config"/>
+</odoo>

product_warranty/views/warranty_config_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="view_warranty_config_list" model="ir.ui.view">
+        <field name="name">warranty.config.list</field>
+        <field name="model">warranty.config</field>
+        <field name="arch" type="xml">
+            <list string="Warranty Configurations" editable="bottom">
+                <field name="name"/>
+                <field name="product"/>
+                <field name="period"/>
+                <field name="percentage"/>
+            </list>
+        </field>
+    </record>
+
+    <record id="action_warranty_config" model="ir.actions.act_window">
+        <field name="name">Warranty Configuration</field>
+        <field name="res_model">warranty.config</field>
+        <field name="view_mode">list</field>
+    </record>
+</odoo>

product_warranty/wizard/__init__.py

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+from . import warranty_wizard

product_warranty/wizard/add_warranty_wizard_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="add_warranty_wizard_form" model="ir.ui.view">
+        <field name="name">add.warranty.wizard.form</field>
+        <field name="model">add.warranty.wizard</field>
+        <field name="arch" type="xml">
+            <form>
+                <field name="wizard_line_ids">
+                    <list editable="bottom" create="false" delete="false">
+                        <field name="sale_order_line_id" column_invisible="1"/>
+                        <field name="product_id" readonly="1"/>
+                        <field name="warranty_name"/>
+                        <field name="end_date"/>
+                    </list>
+                </field>
+                <footer>
+                    <button name="action_add" string="Add Warranty" type="object" class="btn-primary"/>
+                    <button string="Cancel" class="btn-secondary" special="cancel"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+
+    <record id="add_warranty_wizard_action" model="ir.actions.act_window">
+        <field name="name">Add Warranty</field>
+        <field name="res_model">add.warranty.wizard</field>
+        <field name="view_mode">form</field>
+        <field name="target">new</field>
+    </record>
+</odoo>

product_warranty/wizard/warranty_wizard.py

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+from dateutil.relativedelta import relativedelta
+from odoo import api, fields, models
+
+
+class AddWarrantyLinesWizard(models.TransientModel):
+    _name = "add.warranty.lines.wizard"
+    _description = "Warranty Line Wizard"
+
+    wizard_id = fields.Many2one('add.warranty.wizard', string="Wizard Reference", ondelete="cascade")
+    product_id = fields.Many2one(comodel_name="product.product", string="Product")
+    sale_order_line_id = fields.Many2one(comodel_name="sale.order.line", string="Sale Order Line")
+    warranty_name = fields.Many2one(comodel_name="warranty.config", string="Warranty Configuration")
+    end_date = fields.Date(readonly=True, string="End Date", compute="_compute_end_date")
+
+    @api.depends('warranty_name')
+    def _compute_end_date(self):
+        for record in self:
+            if record.warranty_name:
+                record.end_date = fields.Date.today() + relativedelta(years=record.warranty_name.period)
+            else:
+                record.end_date = False
+
+
+class AddWarrantyWizard(models.TransientModel):
+    _name = "add.warranty.wizard"
+    _description = "Add Warranty Wizard"
+
+    wizard_line_ids = fields.One2many(
+        comodel_name='add.warranty.lines.wizard',
+        inverse_name='wizard_id',
+        string="Warranty Lines"
+    )
+
+    def default_get(self, fields_list):
+        res = super().default_get(fields_list)
+
+        sale_order = self.env['sale.order'].browse(self.env.context.get("default_sale_order_id"))
+
+        sale_order_lines = sale_order.order_line.filtered(
+            lambda line: line.product_id.is_warranty_available and not line.has_warranty
+        )
+
+        res.update({
+                'wizard_line_ids': [(0, 0, {
+                'sale_order_line_id': line.id,
+                'product_id': line.product_id.id,
+            }) for line in sale_order_lines]
+        })
+        return res
+
+    def action_add(self):
+        sale_order_line = self.env['sale.order.line']
+        warranty_lines = self.wizard_line_ids
+
+        for line in warranty_lines:
+            if line.warranty_name:
+                sale_order_line.create({
+                    'order_id': line.sale_order_line_id.order_id.id,
+                    'product_id':  line.warranty_name.product.id,
+                    'product_uom_qty': 1,
+                    'price_unit': line.warranty_name.percentage / 100 * line.sale_order_line_id.price_unit,
+                    'name': f"{line.sale_order_line_id.product_id.name} Warranty, End Date: {line.end_date}",
+                    'order_line_linked_to_warranty': line.sale_order_line_id.id,
+                    'is_warranty': True,
+                })
+
+                line.sale_order_line_id.write({'has_warranty': True})
+        return True