[ADD] Product Kit: New Product Type

product_kit/__init__.py

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+from . import models
+from . import wizard

product_kit/__manifest__.py

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+{
+    'name': 'Product Kit',
+    'Category': 'Sales/Product Kit',
+    'license': 'LGPL-3',
+    'installable': True,
+    'depends': ['sale_management', 'stock'],
+    'data': [
+        'security/ir.model.access.csv',
+        'wizard/wizard_product_kit_views.xml',
+        'views/product_template_views.xml',
+        'views/sale_order_views.xml',
+        'views/sale_portal_template.xml',
+        'views/report_invoice.xml',
+    ]
+}

product_kit/models/__init__.py

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

product_kit/models/product_template.py

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+from odoo import fields, models
+
+
+class ProductTemplate(models.Model):
+    _inherit = 'product.template'
+
+    kit = fields.Boolean(string="has kit ?", default=False, help="To enable new product type")
+    subproduct = fields.Many2many(comodel_name="product.product", string="Sub Product", help="Select subproduct if kit is enabled")

product_kit/models/sale_order.py

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+from odoo import fields, models
+
+
+class SaleOrder(models.Model):
+    _inherit = 'sale.order'
+
+    print_in_report = fields.Boolean(string="Print in report ?", default=True)

product_kit/models/sale_order_line.py

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+from odoo import Command, fields, models
+
+
+class SaleOrderLine(models.Model):
+    _inherit = 'sale.order.line'
+
+    has_kit = fields.Boolean(related="product_template_id.kit", store=True, help="Check product has kit enable or not")
+    is_kit = fields.Boolean(string="Is kit", default=False, help="Distinguish main product and subproduct. If true it is sub product")
+
+    def open_kit_wizard(self):
+        for record in self:
+            sale_order_line_id = record.id
+            sale_order_id = record.order_id.id
+
+            existing_lines = []
+
+            # Fetching existing order lines from sale order
+            existing_lines = self.env['sale.order.line'].search([
+                ('linked_line_id', '=', sale_order_line_id),
+                ('order_id', '=', sale_order_id)
+            ])
+
+            # Creating dictionary with product id as key and quantity as value from existing order line
+            existing_dict = {
+                line.product_id.id: line.product_uom_qty for line in existing_lines
+            }
+            product_commands = []
+
+            # Looping through all the subproduct of kit enabled product
+            for product in record.product_template_id.subproduct:
+                qty = existing_dict.get(product.id, 1)  # Fetching quantity of product if not found return 1
+                # Creating command to create new linked record
+                product_commands.append(
+                    Command.create({
+                        "product_id": product.id,
+                        "quantity": qty
+                    })
+                )
+
+            # Populating wizard models
+            wizard = self.env['wizard.product.kit'].create({
+                "product_ids": product_commands
+            })
+
+            return {
+                'type': 'ir.actions.act_window',
+                'name': 'Product Kit',
+                'res_model': 'wizard.product.kit',
+                'view_mode': 'form',
+                'target': 'new',
+                "res_id": wizard.id,
+                "context": {
+                    "default_sale_order_id": record.order_id.id,
+                }
+            }

product_kit/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_wizard_product_kit,access_wizard_product_kit,model_wizard_product_kit,base.group_user,1,1,1,0
+access_wizard_product_kit_add,access_wizard_product_kit_add,model_wizard_product_kit_add,base.group_user,1,1,1,0

product_kit/views/product_template_views.xml

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+<?xml version="1.0"?>
+<odoo>
+
+    <record id="product_template_form_view" model="ir.ui.view">
+        <field name="name">product.template.form.inherit.product.kit</field>
+        <field name="model">product.template</field>
+        <field name="inherit_id" ref="product.product_template_form_view" />
+        <field name="arch" type="xml">
+            <xpath expr="//group[@name='group_general']" position="inside">
+                <field name="kit" />
+                <field name="subproduct" widget="many2many_tags" invisible="not kit" />
+            </xpath>
+        </field>
+    </record>
+
+</odoo>

product_kit/views/report_invoice.xml

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+<?xml version="1.0"?>
+<odoo>
+
+    <template id="report_invoice_document_subproduct" inherit_id="account.report_invoice_document">
+        <xpath expr="//tbody[hasclass('invoice_tbody')]//tr" position="attributes">
+            <attribute name="t-if">
+                (line.sale_line_ids.order_id.print_in_report) or 
+                (not line.sale_line_ids.filtered('is_kit'))
+            </attribute>
+        </xpath>
+    </template>
+
+</odoo>

product_kit/views/sale_order_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="view_order_form" model="ir.ui.view">
+        <field name="name">view.sale.form.order.line.inherit</field>
+        <field name="model">sale.order</field>
+        <field name="inherit_id" ref="sale.view_order_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//field[@name='payment_term_id']" position="after">
+                <field name="print_in_report" />
+            </xpath>
+
+            <xpath expr="//field[@name='order_line']/list//field[@name='product_template_id']" position="after">
+                <button type="object" name="open_kit_wizard" class="btn btn-success" invisible="not has_kit or state in('sale')" string="+" />
+            </xpath>
+
+            <xpath expr="//field[@name='order_line']/list" position="attributes">
+                <attribute name="decoration-danger">is_kit</attribute>
+            </xpath>
+
+            <xpath expr="//field[@name='order_line']/list//field[@name='product_id']" position="attributes">
+                <attribute name="readonly">is_kit</attribute>
+            </xpath>
+            <xpath expr="//field[@name='order_line']/list//field[@name='product_template_id']" position="attributes">
+                <attribute name="readonly">is_kit</attribute>
+            </xpath>
+            <xpath expr="//field[@name='order_line']/list//field[@name='product_uom_qty']" position="attributes">
+                <attribute name="readonly">is_kit</attribute>
+            </xpath>
+            <xpath expr="//field[@name='order_line']/list//field[@name='customer_lead']" position="attributes">
+                <attribute name="readonly">is_kit</attribute>
+            </xpath>
+            <xpath expr="//field[@name='order_line']/list//field[@name='price_unit']" position="attributes">
+                <attribute name="readonly">is_kit</attribute>
+            </xpath>
+            <xpath expr="//field[@name='order_line']/list//field[@name='tax_id']" position="attributes">
+                <attribute name="readonly">is_kit</attribute>
+            </xpath>
+
+        </field>
+    </record>
+</odoo>

product_kit/views/sale_portal_template.xml

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+<?xml version="1.0"?>
+<odoo>
+
+    <template id="sale_preview_subproduct" inherit_id="sale.sale_order_portal_content">
+        <xpath expr="//tbody[hasclass('sale_tbody')]//tr//t" position="attributes">
+            <attribute name="t-if">(sale_order.print_in_report and line.is_kit) or (not line.is_kit)</attribute>
+        </xpath>
+    </template>
+
+</odoo>

product_kit/wizard/__init__.py

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+from . import wizard_product_kit

product_kit/wizard/wizard_product_kit.py

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+from odoo import api, fields, models
+from odoo.exceptions import UserError
+
+
+class WizardProductKit(models.TransientModel):
+    _name = 'wizard.product.kit'
+    _description = "Wizard to add product kit"
+
+    # sale_order_id = fields.Many2one(comodel_name="sale.order")
+    product_ids = fields.One2many(
+        comodel_name="wizard.product.kit.add",
+        inverse_name="kit_id",
+        string="Product"
+    )
+
+    def add_product_kits(self):
+        sale_order_id = self.env.context.get("default_sale_order_id")
+        main_order_line_id = self.env.context.get("active_id")
+
+        existing_line = self.env['sale.order.line'].search([
+            ('linked_line_id', '=', main_order_line_id),
+            ('order_id', '=', sale_order_id)
+        ])
+        existing_product_ids = existing_line.mapped('product_id.id')
+
+        kits_price = 0
+        for product in self.product_ids:
+            # if product already in sale order line only update quantity and price
+            if product.product_id.id in existing_product_ids:
+                for line in existing_line:
+                    if line.product_id.id == product.product_id.id:
+                        line.write({
+                            "product_uom_qty": product.quantity,
+                            "price_unit": 0
+                        })
+            # If not found create new line
+            else:
+                new_sale_order_line = self.env['sale.order.line'].create({
+                    "product_id": product.product_id.id,
+                    "order_id": sale_order_id,
+                    "product_uom_qty": product.quantity,
+                    "linked_line_id": main_order_line_id,
+                    "price_unit": 0,
+                    "is_kit": True,
+                })
+                if not new_sale_order_line:
+                    raise UserError("something went wrong!!!")
+
+            kits_price += product.price
+
+        # Updating main order line price
+        order_line = self.env['sale.order.line'].browse(main_order_line_id)
+        order_line.write({
+            "price_subtotal": (order_line.product_uom_qty * order_line.product_id.list_price) + kits_price
+        })
+
+        return {"type": "ir.actions.act_window_close"}
+
+
+class WizardProductKitAdd(models.TransientModel):
+    _name = 'wizard.product.kit.add'
+    _description = 'Wizard to add product kit list'
+
+    product_id = fields.Many2one(
+        comodel_name="product.product",
+        string="Name",
+    )
+    quantity = fields.Float(string='Quantity', default=1.0)
+    price = fields.Float(string='Price', compute="_compute_price")
+    kit_id = fields.Many2one(
+        comodel_name="wizard.product.kit",
+        string="Kit Name"
+    )
+
+    @api.depends("quantity")
+    def _compute_price(self):
+        for record in self:
+            record.price = record.quantity * record.product_id.list_price

product_kit/wizard/wizard_product_kit_views.xml

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+<?xml version="1.0"?>
+<odoo>
+
+    <record id="wizard_product_kit_view_form" model="ir.ui.view">
+        <field name="name">Product Kit Wizard</field>
+        <field name="model">wizard.product.kit</field>
+        <field name="arch" type="xml">
+            <form string="Add Kit">
+                <sheet>
+                    <field name="product_ids">
+                        <list create="False" editable="bottom" delete="False" open_form_view="False">
+                            <field name="product_id" readonly="True" />
+                            <field name="quantity" />
+                            <field name="price" />
+                        </list>
+                    </field>
+                </sheet>  
+                <footer>
+                    <button string="Confirm" type="object" name="add_product_kits" class="btn-primary" />
+                    <button string="Cancel" special="cancel" />
+                </footer>           
+            </form>
+        </field>
+    </record>
+
+</odoo>