[ADD] product_type_kit: kit product added with sub product selection …

product_type_kit/__init__.py

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+from . import models
+from . import wizards

product_type_kit/__manifest__.py

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+{
+    'name': 'Product Type Kit',
+    'version': '1.0',
+    'category': 'Sales',
+    'license': 'LGPL-3',
+    'summary': 'Custom product kit functionality without using BoM',
+    'depends': ['sale', 'product'],
+    'data': [
+        'security/ir.model.access.csv',
+        'views/product_template_views.xml',
+        'views/sale_order_views.xml',
+        'views/sale_order_line_views.xml',
+        'views/kit_subproduct_wizards.xml',
+    ],
+    'installable': True,
+    'application': True,
+}

product_type_kit/models/__init__.py

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

product_type_kit/models/product_template.py

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+from odoo import fields, models
+
+
+class ProductTemplate(models.Model):
+    _inherit = 'product.template'
+
+    is_kit = fields.Boolean(string='Is Kit')
+    sub_product_ids = fields.Many2many(
+        'product.product',
+        'product_kit_sub_products_rel',
+        'kit_id',
+        'sub_product_id',
+        string='Sub Products',
+        domain="[('type', '=', 'product')]"
+    )
+    show_subproducts_on_report = fields.Boolean(string='Print Subproducts on Report')

product_type_kit/models/sale_order.py

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+from odoo import api, fields, models
+
+
+class SaleOrder(models.Model):
+    _inherit = 'sale.order'
+
+    print_kit_details = fields.Boolean(string="Print Kit Details")
+    display_in_report = fields.Boolean(string="Print in report?", default=True)
+
+    @api.model
+    def unlink(self):
+        for order in self:
+            for line in order.order_line:
+                if not line.is_subproduct:
+                    # delete sub lines linked to this main line
+                    sub_lines = order.order_line.filtered(lambda l: l.kit_parent_line_id == line.id)
+                    sub_lines.unlink()
+        return super().unlink()

product_type_kit/models/sale_order_line.py

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+# models/sale_order_line.py
+from odoo import api, fields, models
+from odoo.exceptions import UserError
+
+
+class SaleOrder(models.Model):
+    _inherit = 'sale.order.line'
+
+    kit_parent_line_id = fields.Many2one('sale.order.line', string='Parent Kit Line', ondelete='cascade')
+    is_kit_product = fields.Boolean(
+        string="Is Kit Product", compute="_compute_is_kit", store=True
+    )
+    is_subproduct = fields.Boolean(string="Is Sub Product", default=False)
+
+    @api.depends("product_id")
+    def _compute_is_kit(self):
+        for line in self:
+            line.is_kit_product = line.product_id.product_tmpl_id.is_kit
+
+    def write(self, vals):
+        for line in self:
+            if line.kit_parent_line_id:
+                raise UserError("Sub product lines cannot be edited manually.")
+        return super().write(vals)
+
+    def open_kit_wizard(self):
+        self.ensure_one()
+        return {
+            'name': f'Configure Kit: {self.product_id.name}',
+            'type': 'ir.actions.act_window',
+            'res_model': 'kit.sub.product.wizard',
+            'view_mode': 'form',
+            'target': 'new',
+            'context': {
+                'default_order_line_id': self.id,
+            }
+        }
+
+    @api.onchange('kit_parent_line_id')
+    def _onchange_disable_edit(self):
+        if self.kit_parent_line_id:
+            self.update({'price_unit': 0})

product_type_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_product_template,access_product_template,model_product_template,base.group_user,1,1,1,1
+access_sale_order_line,access_sale_order_line,model_sale_order_line,base.group_user,1,1,1,1
+access_sale_order,access_sale_order,model_sale_order,base.group_user,1,1,1,1
+access_kit_sub_product_wizard,access_kit_sub_product_wizard,model_kit_sub_product_wizard,,1,1,1,1
+access_kit_sub_product_line,access_kit_sub_product_line,model_kit_sub_product_line,,1,1,1,1

product_type_kit/views/kit_subproduct_wizards.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="view_kit_sub_product_wizard" model="ir.ui.view">
+        <field name="name">kit.sub.product.wizard</field>
+        <field name="model">kit.sub.product.wizard</field>
+        <field name="arch" type="xml">
+            <form>
+                <group>
+                    <field name="order_line_id" readonly="1"/>
+                </group>
+                <field name="sub_product_lines">
+                    <list editable="bottom">
+                        <field name="product_id"/>
+                        <field name="quantity"/>
+                        <field name="price_unit"/>
+                    </list>
+                </field>
+                <footer>
+                    <button name="action_confirm" string="Confirm" type="object" class="btn-primary"/>
+                    <button string="Cancel" special="cancel" class="btn-secondary"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+</odoo>

product_type_kit/views/product_template_views.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <record id="view_product_template_form_kit" model="ir.ui.view">
+        <field name="name">product.template.form.kit</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="//field[@name='type']" position="after">
+                <field name="is_kit"/>
+                <field name="sub_product_ids" widget="many2many_tags" invisible="not is_kit"/>
+            </xpath>
+        </field>
+    </record>
+</odoo>

product_type_kit/views/sale_order_line_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="view_order_line_readonly_kit" model="ir.ui.view">
+        <field name="name">sale.order.line.tree.readonly.kit</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='order_line']/list/field[@name='product_id']" position="attributes">
+                <attribute name="readonly">1</attribute>
+                <attribute name="attrs">{'readonly': [('is_subproduct', '=', True)]}</attribute>
+            </xpath>
+            <xpath expr="//field[@name='order_line']/list/field[@name='price_unit']" position="attributes">
+                <attribute name="readonly">1</attribute>
+                <attribute name="attrs">{'readonly': [('is_subproduct', '=', True)]}</attribute>
+            </xpath>
+        </field>
+    </record>
+</odoo>

product_type_kit/views/sale_order_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="view_order_line_kit_button" model="ir.ui.view">
+        <field name="name">sale.order.line.kit.button</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='order_line']//list/field[@name='product_id']" position="after">
+                <button name="open_kit_wizard" type="object" string="Add Kit" class="btn-primary" invisible="(not is_kit_product) or (state != 'draft')" />
+            </xpath>
+            <xpath expr="//field[@name='payment_term_id']" position="after">
+                <field name="display_in_report"/>
+            </xpath>
+        </field>
+    </record>
+</odoo>

product_type_kit/wizards/__init__.py

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+from . import kit_sub_product_line
+from . import kit_subproduct_wizards

product_type_kit/wizards/kit_sub_product_line.py

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+from odoo import fields, models
+
+
+class KitSubProductLine(models.TransientModel):
+    _name = 'kit.sub.product.line'
+    _description = 'Kit Sub Product Line'
+
+    wizard_id = fields.Many2one('kit.sub.product.wizard', required=True, ondelete='cascade')
+    product_id = fields.Many2one('product.product', required=True)
+    quantity = fields.Float(string='Quantity', default=1.0)
+    price_unit = fields.Float(string='Price', default=0.0)

product_type_kit/wizards/kit_subproduct_wizards.py

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+# wizards/kit_sub_product_wizard.py
+from odoo import api, fields, models
+
+
+class KitSubProductWizard(models.TransientModel):
+    _name = 'kit.sub.product.wizard'
+    _description = 'Kit Sub Products Wizard'
+
+    order_line_id = fields.Many2one('sale.order.line', required=True)
+    sub_product_lines = fields.One2many('kit.sub.product.line', 'wizard_id')
+
+    @api.model
+    def default_get(self, fields_list):
+        res = super().default_get(fields_list)
+        line = self.env['sale.order.line'].browse(self.env.context['default_order_line_id'])
+        previous_sub_lines = self.env['sale.order.line'].search([
+            ('kit_parent_line_id', '=', line.id)
+        ])
+        sub_lines = []
+        for sub_product in line.product_id.sub_product_ids:
+            prev_line = previous_sub_lines.filtered(lambda l: l.product_id == sub_product)
+            sub_lines.append((0, 0, {
+                'product_id': sub_product.id,
+                'quantity': prev_line.product_uom_qty if prev_line else 1.0,
+                'price_unit': prev_line.price_unit if prev_line else sub_product.lst_price,
+            }))
+        res['sub_product_lines'] = sub_lines
+        return res
+
+    def action_confirm(self):
+        SaleOrderLine = self.env['sale.order.line']
+        # Remove existing kit sub lines
+        existing_lines = SaleOrderLine.search([('kit_parent_line_id', '=', self.order_line_id.id)])
+        existing_lines.unlink()
+
+        for sub_line in self.sub_product_lines:
+            SaleOrderLine.create({
+                'order_id': self.order_line_id.order_id.id,
+                'product_id': sub_line.product_id.id,
+                'product_uom_qty': sub_line.quantity,
+                'price_unit': 0.0,
+                'kit_parent_line_id': self.order_line_id.id,
+            })
+
+        total_price = sum(l.quantity * l.price_unit for l in self.sub_product_lines)
+        self.order_line_id.price_unit = total_price