[ADD] Rental Deposit: Configure and Display Deposit for Rental Products

In this commit:

- Added option to set a deposit product from configuration
- Introduced checkbox to enable deposit for rental products
- Added a field to specify the deposit amount
- Inherited sale order line to auto-add deposit line when rental product added
- Synced deposit quantity with rental product quantity
- Displayed deposit amount on the product page in the website
- Shown deposit details with amount in the shopping cart

Author: amas-odoo

deposit_in_rental_app/__init__.py

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+from . import models

deposit_in_rental_app/__manifest__.py

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+{
+    'name': 'Rental Deposit',
+    'installable': True,
+    'license': 'LGPL-3',
+    'depends': ['sale_renting', 'website_sale_renting'],
+    'data': [
+        'views/res_config_settings_views.xml',
+        'views/product_template_views.xml',
+        'views/templates.xml',
+    ],
+
+}

deposit_in_rental_app/models/__init__.py

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+from . import res_config_settings
+from . import product_template
+from . import sale_order_line

deposit_in_rental_app/models/product_template.py

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+from odoo import fields, models
+
+
+class ProductTemplate(models.Model):
+    _inherit = 'product.template'
+
+    require_deposit = fields.Boolean(string='Require Deposit', default=False)
+    deposit_amount = fields.Float(string='Amount')

deposit_in_rental_app/models/res_config_settings.py

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+from odoo import fields, models
+
+
+class ResConfigSettings(models.TransientModel):
+    _inherit = 'res.config.settings'
+
+    deposit_product_id = fields.Many2one('product.product', string='Deposit', config_parameter='deposit_in_rental_app.deposit_product_id')

deposit_in_rental_app/models/sale_order_line.py

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+from odoo import api, fields, models
+from odoo.exceptions import UserError
+
+
+class SaleOrderLine(models.Model):
+    _inherit = 'sale.order.line'
+
+    is_deposit_line = fields.Boolean(default=False)
+    parent_id = fields.Many2one(comodel_name="sale.order.line", ondelete='cascade', copy=False)
+    child_ids = fields.One2many(comodel_name="sale.order.line", inverse_name="parent_id", copy=False)
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        res = super().create(vals_list)
+        # fetch deposit product name from ip.config.setting
+        deposit_product_id = self.env["ir.config_parameter"].sudo().get_param("deposit_in_rental_app.deposit_product_id")
+
+        if not deposit_product_id:
+            raise UserError("Set deposit product from setting")
+
+        for line in res:
+            # If product line product is deposit enable create new deposit line
+            if line.product_id.require_deposit and line.product_id.deposit_amount:
+                deposit_order_line = self.env['sale.order.line'].create({
+                    "order_id": line.order_id.id,
+                    "product_id": int(deposit_product_id),
+                    "name": f"Deposit for {line.product_id.name}",
+                    "product_uom_qty": line.product_uom_qty,
+                    "price_unit": line.product_template_id.deposit_amount,
+                    "parent_id": line.id,
+                    "sequence": line.sequence + 1,
+                    "is_deposit_line": True,
+                })
+
+                if not deposit_order_line:
+                    raise UserError("Something went wrong!!")
+
+        return res
+
+    def write(self, vals):
+        res = super().write(vals)
+        # Update quantity if deposit order line is already created
+        if 'product_uom_qty' in vals:
+            for line in self:
+                if line.child_ids:
+                    line.child_ids.write({
+                        "product_uom_qty": vals['product_uom_qty'],
+                        "price_unit": line.child_ids.price_unit
+                    })
+        return res

deposit_in_rental_app/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

deposit_in_rental_app/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.view.inherit.deposit.in.rental.app</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='extra_rental']" position="inside">
+                <field name="require_deposit" />
+                <field name="deposit_amount" invisible="not require_deposit" widget="monetary" />
+            </xpath>
+        </field>
+    </record>
+
+</odoo>

deposit_in_rental_app/views/res_config_settings_views.xml

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+<?xml version="1.0"?>
+<odoo>
+
+    <record id="res_config_settings_view_form" model="ir.ui.view">
+        <field name="name">res.config.settings.view.form.inherit.deposit.product</field>
+        <field name="model">res.config.settings</field>
+        <field name="inherit_id" ref="base.res_config_settings_view_form" />
+        <field name="arch" type="xml">
+            <xpath expr="//setting[@name='rental_delay_costs']" position="inside">
+                <div class="row mt8">
+                    <label string="Deposit" for="deposit_product_id" class="col-lg-3 o_light_label"/>
+                    <field name="deposit_product_id" placeholder="Product to used for sale order" options="{'no_create': true}"  domain="[('rent_ok', '=', True)]"/>
+                </div>
+            </xpath>
+        </field>
+    </record>
+
+</odoo>

deposit_in_rental_app/views/templates.xml

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+<?xml version="1.0"?>
+<odoo>
+
+    <template id="deposit_in_rental_app_template" inherit_id="website_sale_renting.rental_pricing_table">
+        <xpath expr="//table[@id='oe_wsale_rental_pricing_table']//tbody" position="after">
+            <t t-if="product.require_deposit and product.deposit_amount">
+                <tr>
+                    <td t-attf-class="{{hide_border_bottom_classes}} ps-0"><strong>Deposit</strong></td>
+                    <td t-attf-class="{{hide_border_bottom_classes}} pe-0 text-muted text-end">
+                        <span t-esc="product.currency_id.symbol"/>
+                        <span id="deposit_amount"> 
+                            <t t-out="product.deposit_amount" />
+                        </span>
+                    </td>
+                </tr>
+            </t>
+        </xpath>
+    </template>
+
+    <template id="cart_lines_inherit_deposit" inherit_id="website_sale.cart_lines">
+        <xpath expr="//t[@t-call='website_sale.cart_line_product_link']" position="inside">
+            <t t-if="line.parent_id">
+                <span class="d-inline align-top h6 fw-bold">for <t t-out="line.parent_id.product_id.name" /></span>
+            </t>
+        </xpath>
+        <!-- hide remove button for deposit -->
+        <xpath expr="//div[@name='o_wsale_cart_line_button_container']" position="attributes">
+            <attribute name="t-if">not line.is_deposit_line</attribute>
+        </xpath>
+        <!-- hide quantity increment and decrement for deposit products -->
+        <xpath expr="//div[@name='website_sale_cart_line_quantity']" position="attributes">
+            <attribute name="t-if">not line.is_deposit_line</attribute>
+        </xpath>
+    </template>
+
+</odoo>