[ADD] product_kit: add kit product management with sale order integration and configuration wizard

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',
+    'version': '1.0',
+    'depends': ['base', 'sale', 'product', 'stock'],
+    'application': True,
+    'installable': True,
+    'author': "odoo s.a",
+    'category': 'Tutorials',
+    'license': 'AGPL-3',
+    'data': [
+        'security/ir.model.access.csv',
+        'views/product_template_views.xml',
+        'views/sale_order_views.xml',
+        'views/kit_config_wizard_views.xml',
+    ],
+}

product_kit/models/__init__.py

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

product_kit/models/product_kit_line.py

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+from odoo import _, api, fields, models
+from odoo.exceptions import UserError, ValidationError
+
+
+class ProductKitLine(models.Model):
+    _name = 'product.kit.line'
+    _description = 'Product Kit Line'
+    _rec_name = 'product_id'
+
+    product_tmpl_id = fields.Many2one(
+        'product.template',
+        string="Kit Product",
+        required=True,
+        ondelete='cascade',
+    )
+    product_id = fields.Many2one(
+        'product.product',
+        string="Component Product",
+        required=True,
+    )
+    quantity = fields.Float(
+        string="Quantity",
+        required=True,
+        default=1.0,
+    )
+
+    @api.constrains('product_id')
+    def _check_product_id(self):
+        """Validate that the component product is not the same as the kit product itself."""
+        for line in self:
+            if line.product_id and line.product_id.product_tmpl_id == line.product_tmpl_id:
+                raise ValidationError(
+                    _("A product cannot be a component of itself.")
+                )
+
+    def write(self, vals):
+        """Prevent modification of restricted fields after creation."""
+        restricted_fields = {'product_id', 'quantity', 'product_tmpl_id'}
+        modified = restricted_fields & set(vals.keys())
+        if modified:
+            field_names = dict(self.fields_get(modified)).keys()
+            raise UserError(
+                _("Kit line fields (%s) cannot be modified after creation. "
+                  "Delete and recreate the line instead.")
+                % ", ".join(field_names)
+            )
+        return super(ProductKitLine, self).write(vals)

product_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 a Kit",
+        help="Check if this product is a kit composed of multiple products.",
+    )
+    kit_product_ids = fields.One2many(
+        'product.kit.line',
+        'product_tmpl_id',
+        string="Kit Products",
+        help="Products that make up this kit.",
+    )

product_kit/models/sale_order.py

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+from odoo import _, api, fields, models
+
+
+class SaleOrder(models.Model):
+    _inherit = 'sale.order'
+
+    @api.depends('order_line.kit_line_ids', 'order_line.parent_kit_line_id')
+    def _compute_kit_lines_count(self):
+        for order in self:
+            order.kit_lines_count = len(
+                order.order_line.filtered(lambda l: l.kit_line_ids or l.parent_kit_line_id)
+            )
+
+    kit_lines_count = fields.Integer(
+        string="Kit Lines",
+        compute='_compute_kit_lines_count',
+    )
+
+    def action_open_kit_config_wizard(self):
+
+        self.ensure_one()
+
+        context = self.env.context.copy()
+        active_line_id = context.get('active_id')
+        return {
+            'type': 'ir.actions.act_window',
+            'res_model': 'kit.config.wizard',
+            'view_mode': 'form',
+            'target': 'new',
+            'context': {
+                'default_sale_order_id': self.id,
+                'default_sale_line_id': active_line_id,
+                'active_ids': self.ids,
+            },
+        }
+
+    def action_confirm(self):
+
+        res = super(SaleOrder, self).action_confirm()
+
+        for order in self:
+            lines_to_process = order.order_line.filtered(
+                lambda l: l.product_id and not l.kit_line_ids
+                          and l.product_id.product_tmpl_id.is_kit
+                          and l.product_id.product_tmpl_id.kit_product_ids
+            )
+            for line in lines_to_process:
+                kit_template = line.product_id.product_tmpl_id
+
+                section_seq = line.sequence + 1
+                self.env['sale.order.line'].create({
+                    'order_id': order.id,
+                    'display_type': 'line_section',
+                    'name': _("Sub products of %s", line.name),
+                    'sequence': section_seq,
+                })
+
+                for idx, kit_component in enumerate(kit_template.kit_product_ids):
+                    vals = {
+                        'order_id': order.id,
+                        'product_id': kit_component.product_id.id,
+                        'product_uom_qty': line.product_uom_qty * kit_component.quantity,
+                        'price_unit': kit_component.product_id.lst_price,
+                        'name': kit_component.product_id.display_name,
+                        'parent_kit_line_id': line.id,
+                        'sequence': section_seq + 1 + idx,
+                    }
+                    child_line = self.env['sale.order.line'].create(vals)
+                    line.write({'kit_line_ids': [(4, child_line.id)]})
+
+                vals = {'product_uom_qty': 0}
+                if line.name and not line.name.startswith('[Kit] '):
+                    vals['name'] = f"[Kit] {line.name}"
+                line.write(vals)
+
+        return res

product_kit/models/sale_order_line.py

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+from odoo import api, fields, models
+
+
+class SaleOrderLine(models.Model):
+    _inherit = 'sale.order.line'
+
+    kit_line_ids = fields.One2many(
+        'sale.order.line',
+        'parent_kit_line_id',
+        string="Kit Lines",
+        help="Sale order lines generated from exploding this kit.",
+    )
+    parent_kit_line_id = fields.Many2one(
+        'sale.order.line',
+        string="Parent Kit Line",
+        help="Parent kit sale order line that generated this line.",
+        ondelete='cascade',
+    )
+
+    is_kit = fields.Boolean(
+        string="Is Kit",
+        compute='_compute_is_kit',
+        help="Whether the product on this line is a kit.",
+    )
+
+    @api.depends('product_id')
+    def _compute_is_kit(self):
+        for line in self:
+            line.is_kit = bool(
+                line.product_id
+                and line.product_id.product_tmpl_id.is_kit
+                and line.product_id.product_tmpl_id.kit_product_ids
+            )
+
+    def action_open_kit_config_wizard(self):
+
+        self.ensure_one()
+        return {
+            'type': 'ir.actions.act_window',
+            'res_model': 'kit.config.wizard',
+            'view_mode': 'form',
+            'target': 'new',
+            'context': {
+                'default_sale_order_id': self.order_id.id,
+                'default_sale_line_id': self.id,
+                'active_ids': self.order_id.ids,
+            },
+        }
+
+    def unlink(self):
+
+        kit_child_lines = self.env['sale.order.line']
+        kit_section_lines = self.env['sale.order.line']
+        for line in self:
+            if line.kit_line_ids:
+                kit_child_lines |= line.kit_line_ids
+                # Find and remove the section header that sits between the kit line and its components
+                section_line = self.search([
+                    ('order_id', '=', line.order_id.id),
+                    ('display_type', '=', 'line_section'),
+                    ('sequence', '=', line.sequence + 1),
+                ], limit=1)
+                if section_line:
+                    kit_section_lines |= section_line
+        if kit_child_lines:
+            kit_child_lines.unlink()
+        if kit_section_lines:
+            kit_section_lines.unlink()
+        return super(SaleOrderLine, self).unlink()
+
+    def _get_kit_component_lines(self):
+
+        self.ensure_one()
+        return self.kit_line_ids
+
+    def _is_kit_line(self):
+
+        self.ensure_one()
+        return bool(self.kit_line_ids)
+
+    def _is_kit_component(self):
+
+        self.ensure_one()
+        return bool(self.parent_kit_line_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_product_kit_line,access.product.kit.line,model_product_kit_line,base.group_user,1,1,1,0
+access_kit_config_wizard,access.kit.config.wizard,model_kit_config_wizard,base.group_user,1,1,1,1
+access_kit_config_wizard_line,access.kit.config.wizard.line,model_kit_config_wizard_line,base.group_user,1,1,1,1

product_kit/views/kit_config_wizard_views.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <record id="kit_config_wizard_form_view" model="ir.ui.view">
+        <field name="name">kit.config.wizard.form</field>
+        <field name="model">kit.config.wizard</field>
+        <field name="arch" type="xml">
+            <form string="Configure Kit">
+                <group>
+                    <field name="sale_order_id" invisible="1"/>
+                    <field name="sale_line_id" invisible="1"/>
+                    <field name="product_id" invisible="1"/>
+                </group>
+
+                <group>
+                    <!--                    <field name="product_image" widget="image" class="oe_avatar" options="{'size': [96, 96]}"/>-->
+                    <field name="product_name"/>
+                    <field name="order_name" string="Order"/>
+                    <field name="kit_quantity" string="Quantity"/>
+
+                </group>
+
+                <group>
+                    <field name="line_ids" nolabel="1">
+                        <list editable="bottom" string="Components">
+                            <field name="product_id" string="Product"/>
+                            <field name="quantity" string="Quantity"/>
+                            <field name="price_unit" string="Unit Price"/>
+                            <field name="subtotal" string="Subtotal" sum="Total"/>
+                        </list>
+                    </field>
+                </group>
+
+                <footer>
+                    <button name="action_confirm" type="object"
+                            string="Confirm" class="btn-primary"/>
+                    <button special="cancel" string="Cancel"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+</odoo>

product_kit/views/product_template_views.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <record id="action_open_kit_lines" model="ir.actions.act_window">
+        <field name="name">Sub Products</field>
+        <field name="res_model">product.kit.line</field>
+        <field name="view_mode">list,form</field>
+        <field name="domain">[('product_tmpl_id', '=', active_id)]</field>
+        <field name="context">{'default_product_tmpl_id': active_id}</field>
+    </record>
+
+    <record id="product_kit_line_list_view" model="ir.ui.view">
+        <field name="name">product.kit.line.list</field>
+        <field name="model">product.kit.line</field>
+        <field name="arch" type="xml">
+            <list editable="bottom">
+                <field name="product_id"/>
+                <field name="quantity"/>
+            </list>
+        </field>
+    </record>
+
+
+    <record id="view_product_template_kit_form_inherit" model="ir.ui.view">
+        <field name="name">product.template.kit.form.inherit</field>
+        <field name="model">product.template</field>
+        <field name="inherit_id" ref="product.product_template_form_view"/>
+        <field name="arch" type="xml">
+            <div name="options" position="inside">
+                <span name="kit_option" class="d-inline-flex">
+                    <field name="is_kit"/>
+                    <label for="is_kit"/>
+                </span>
+            </div>
+
+            <div name="button_box" position="inside">
+                <button name="%(action_open_kit_lines)d" type="action"
+                        class="btn oe_stat_button btn-outline-secondary flex-grow-1 flex-lg-grow-0"
+                        invisible="not is_kit">
+                    <i class="o_button_icon fa fa-fw fa-cubes me-1"/>
+                    <span>Kit Components</span>
+                </button>
+            </div>
+
+            <xpath expr="//notebook/page[last()]" position="after">
+                <page string="Kit Components" name="kit_components"
+                      invisible="not is_kit">
+                    <field name="kit_product_ids"/>
+                </page>
+            </xpath>
+        </field>
+    </record>
+
+    <record id="view_product_template_kit_search_inherit" model="ir.ui.view">
+        <field name="name">product.template.kit.search.inherit</field>
+        <field name="model">product.template</field>
+        <field name="inherit_id" ref="product.product_template_search_view"/>
+        <field name="arch" type="xml">
+            <filter name="filter_to_sell" position="after">
+                <filter string="Kit" name="is_kit" domain="[('is_kit', '=', True)]"/>
+            </filter>
+        </field>
+    </record>
+</odoo>

product_kit/views/sale_order_views.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+
+    <record id="view_sale_order_kit_form_inherit" model="ir.ui.view">
+        <field name="name">sale.order.kit.form.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='order_line']//list//field[@name='product_id']" position="before">
+                <button name="action_open_kit_config_wizard"
+                        type="object"
+                        icon="fa-cubes"
+                        invisible="not is_kit" width="25px"
+                        title="Configure Kit"/>
+            </xpath>
+
+            <xpath expr="//field[@name='order_line']//form//field[@name='product_id']" position="before">
+                <button name="action_open_kit_config_wizard"
+                        type="object"
+                        class="btn btn-link"
+                        icon="fa-cubes"
+                        invisible="not is_kit" width="25px"
+                        title="Configure Kit"/>
+            </xpath>
+
+        </field>
+    </record>
+
+</odoo>

product_kit/wizard/__init__.py

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+from . import kit_config_wizard
+from . import kit_config_wizard_line