[ADD] rental_deposit: adding deposit to rental products.

rental_deposit/__init__.py

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+from . import models

rental_deposit/__manifest__.py

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+{
+    'author': 'Aditi (adpaw)',
+    'name': 'Deposit Rental App',
+    'license': 'LGPL-3',
+    'depends': ['sale_renting', 'website_sale'],
+    'data': [
+        'views/res_config_settings_view.xml',
+        'views/product_template_view.xml',
+        'views/template_view.xml'
+    ],
+    'assets': {
+        'web.assets_frontend': [
+            'rental_deposit/static/src/deposit_amount.js',
+        ],
+    },
+    'installable': True,
+    'auto_install': True,
+}

rental_deposit/models/__init__.py

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

rental_deposit/models/product_template.py

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+from odoo import fields, models
+
+
+class ProductTemplate(models.Model):
+    _inherit = 'product.template'
+
+    requires_deposit = fields.Boolean(string="Requires Deposit")
+    deposit_amount = fields.Float()

rental_deposit/models/res_company.py

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+from odoo import fields, models
+
+
+class ResCompany(models.Model):
+    _inherit = "res.company"
+
+    deposit_product = fields.Many2one("product.product")

rental_deposit/models/res_config_settings.py

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+from odoo import fields, models
+
+
+class ResConfigSettings(models.TransientModel):
+    _inherit = 'res.config.settings'
+
+    deposit_product = fields.Many2one(
+        "product.product",
+        related="company_id.deposit_product",
+        string="Deposit",
+        readonly=False
+    )

rental_deposit/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_rental_line_id = fields.Many2one(
+        'sale.order.line',
+        string="Parent Rental Line",
+        ondelete="cascade",
+        index=True
+    )
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        lines = super().create(vals_list)
+        rental_lines = lines.filtered(
+            lambda l: l.product_id.rent_ok
+            and l.product_id.requires_deposit
+            and l.product_id.deposit_amount > 0
+            and not l.is_deposit_line
+        )
+        if not rental_lines:
+            return lines
+        company_map = {}
+        for line in rental_lines:
+            company = line.company_id
+            if company not in company_map:
+                if not company.deposit_product:
+                    raise UserError("Please set deposit product in settings.")
+                company_map[company] = company.deposit_product
+        deposit_vals = []
+        for line in rental_lines:
+            deposit_product = company_map[line.company_id]
+            deposit_vals.append({
+                'order_id': line.order_id.id,
+                'product_id': deposit_product.id,
+                'product_uom_qty': line.product_uom_qty,
+                'price_unit': line.product_id.deposit_amount,
+                'name': f"Deposit fee for product: {line.product_id.name}",
+                'is_deposit_line': True,
+                'parent_rental_line_id': line.id,
+            })
+        self.create(deposit_vals)
+        return lines
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_deposit_fee(self):
+        if not self.env.context.get("bypass_deposit_protection_for_delete"):
+            for record in self:
+                if record.is_deposit_line:
+                    raise UserError("You can't delete a Deposit Product line directly.")
+
+    def write(self, vals):
+        if not self.env.context.get("bypass_deposit_protection_for_write"):
+            for record in self:
+                if record.is_deposit_line:
+                    raise UserError("You can't edit Deposit Product line directly.")
+        res = super().write(vals)
+        if 'product_uom_qty' not in vals:
+            return res
+        rental_lines = self.filtered(
+            lambda l: l.product_id.rent_ok
+            and l.product_id.requires_deposit
+            and l.product_id.deposit_amount > 0
+            and not l.is_deposit_line
+        )
+        for line in rental_lines:
+            deposit_line = self.search([('parent_rental_line_id', '=', line.id)], limit=1)
+            if deposit_line:
+                deposit_line.with_context(bypass_deposit_protection_for_write=True).write({
+                    'product_uom_qty': line.product_uom_qty,
+                    'price_unit': line.product_id.deposit_amount,
+                })
+        return res

rental_deposit/static/src/deposit_amount.js

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+import publicWidget from "@web/legacy/js/public/public_widget";
+
+publicWidget.registry.DepositRental = publicWidget.Widget.extend({
+    selector: "#product_detail",
+    events: {
+        'change input[name="add_qty"]': '_updateDepositAmount',
+    },
+
+    start: function () {
+        this._super.apply(this, arguments);
+        if ($("#deposit_amount").length) {
+            this._updateDepositAmount();
+        } else {
+            this.$el.off('change input[name="add_qty"]');
+        }
+    },
+
+    _updateDepositAmount: function () {
+        const qty = parseFloat($("#o_wsale_cta_wrapper").find("input[name='add_qty']").val());
+        const depositAmount = parseFloat($("#deposit_amount").attr("data-base-amount")) || 0;
+        const currencySymbol = $("#deposit_amount").attr("data-currency-symbol") || "";
+        $("#deposit_amount").text(currencySymbol + (depositAmount * qty).toFixed(2));
+    },
+})

rental_deposit/views/product_template_view.xml

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+<odoo>
+    <record id="product_template_form_view_rental_deposit" model="ir.ui.view">
+        <field name="name">product.template.view.form.inherit.rental.deposit</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_rental']" position="inside">
+                <field name="requires_deposit"/>
+                <field name="deposit_amount" invisible="not requires_deposit" widget="monetary"/>
+            </xpath>
+        </field>
+    </record>
+</odoo>

rental_deposit/views/res_config_settings_view.xml

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+<odoo>
+    <record id="res_config_settings_view_form_deposit_inherit" model="ir.ui.view">
+        <field name="name">res.config.settings.view.form.inherit.deposit</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="//field[@name='extra_product']" position="after">
+                <label for="deposit_product"/>
+                <field name="deposit_product"/>
+            </xpath>
+        </field>
+    </record>
+</odoo>

rental_deposit/views/template_view.xml

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+<odoo>
+    <template id="rental_product_details_inherited" inherit_id="website_sale.product">
+        <xpath expr="//t[@t-call='website_sale.cta_wrapper']" position="after">
+            <t t-if="product.rent_ok and product.requires_deposit">
+                <div class="mt-2">
+                    <strong>Deposit Required: </strong>
+                    <span id="deposit_amount" t-att-data-base-amount="product.deposit_amount"/>
+                </div>
+            </t>
+        </xpath>
+    </template>
+</odoo>