FoodcoopBCN/foodcoopbcn#162 add website_sale_cart_line_subtotal

website_sale_cart_line_subtotal/README.md

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+# Website Sale Cart Line Subtotal
+
+## Description
+
+This module adds a "Subtotal" column to the shopping cart lines that displays the total amount for each line (quantity × unit price).
+
+### Problem
+
+By default, the Odoo website shopping cart shows:
+- Product quantity
+- Unit price
+
+But it doesn't show the line total (quantity × price), which can be confusing for customers when they want to quickly see how much each line is costing them.
+
+### Solution
+
+This module adds a new "Subtotal" column that shows:
+- `price_subtotal` (without taxes) for users with tax-excluded view
+- `price_total` (with taxes) for users with tax-included view
+
+The subtotal column is inserted between the "Price" and action columns in the cart.
+
+## Installation
+
+1. Install the module from the Apps menu
+2. No additional configuration is required
+
+## Usage
+
+After installation:
+1. Add products to your cart
+2. Go to the shopping cart page
+3. You will see a new "Subtotal" column showing the line total for each product
+
+The subtotal respects your tax display configuration (with or without taxes).
+
+## Credits
+
+### Contributors
+
+* Criptomart
+
+### Maintainers
+
+This module is maintained by the OCA.
+
+## Compatibility
+
+- Odoo 16.0
+- website_sale

website_sale_cart_line_subtotal/__init__.py

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+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).

website_sale_cart_line_subtotal/__manifest__.py

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+# Copyright 2025 Criptomart
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+{
+    "name": "Website Sale Cart Line Subtotal",
+    "version": "16.0.1.0.0",
+    "summary": "Show line subtotal (quantity × price) in shopping cart",
+    "license": "AGPL-3",
+    "author": "Criptomart, Odoo Community Association (OCA)",
+    "website": "https://github.com/OCA/e-commerce",
+    "depends": ["website_sale"],
+    "data": ["views/website_sale_cart_templates.xml"],
+    "installable": True,
+}

website_sale_cart_line_subtotal/views/website_sale_cart_templates.xml

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+<?xml version="1.0" encoding="utf-8" ?>
+<odoo>
+
+    <!-- Add Line Subtotal column to cart -->
+    <template id="cart_lines_subtotal" inherit_id="website_sale.cart_lines">
+        <!-- Add header for subtotal column -->
+        <xpath expr="//thead/tr/th[@class='text-center td-price']" position="after">
+            <th class="text-center td-subtotal">Subtotal</th>
+        </xpath>
+
+        <!-- Add subtotal value for each line -->
+        <xpath expr="//tbody//tr/td[@name='price']" position="after">
+            <td class="text-center td-subtotal" name="line_subtotal">
+                <t groups="account.group_show_line_subtotals_tax_excluded">
+                    <span
+                        t-esc="line.price_subtotal"
+                        style="white-space: nowrap;"
+                        t-options="{'widget': 'monetary', 'display_currency': website_sale_order.currency_id}"
+                    />
+                </t>
+                <t groups="account.group_show_line_subtotals_tax_included">
+                    <span
+                        t-esc="line.price_total"
+                        style="white-space: nowrap;"
+                        t-options="{'widget': 'monetary', 'display_currency': website_sale_order.currency_id}"
+                    />
+                </t>
+            </td>
+        </xpath>
+    </template>
+
+</odoo>