first commit

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# OS / IDE files
+.DS_Store
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# Local virtual environment
+.venv/
+venv/
+env/
+.env
+
+# Unit test / coverage reports
+.pytest_cache/
+.coverage
+htmlcov/

README.md

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+# POS Ojol Discount Amount
+
+Adds a custom global discount line workflow tailored for Ojol (online delivery apps like GoFood, GrabFood, ShopeeFood) in Odoo 19 Point of Sale.
+
+## Features
+
+- **Pricelist Integration**: Uses Ojol's specific menu pricing when active.
+- **Global Order Discount**: Allows the cashier to apply a single, global order-level discount amount via a custom dialog (by pressing the discount/Rp button).
+- **Automated Discount Line**: Generates a single negative-amount "Diskon Ojol" service line that scales across your order.
+- **Configurable Per POS Config**: Set a specific discount product per POS configuration in the settings interface.
+- **Robust Field & Model Protection**: Seamlessly loads all necessary relational schemas (`company_id`, etc.) and handles special service product templates, preventing initialization crashes in POS.
+
+---
+
+## Configuration
+
+1. Go to **Point of Sale** > **Configuration** > **Settings**.
+2. Locate the **Ojol Discount** section.
+3. Select or create an **Ojol Discount Product**.
+   - *Note: This product should be a Service product with the same tax configuration as your menu items to ensure correct tax calculations.*
+4. Save the settings.
+
+---
+
+## Usage
+
+1. Open a new POS Session.
+2. Select the Ojol pricelist.
+3. Add items to the cart.
+4. Click the custom discount button (`Rp`) on the numpad.
+5. Enter the target discount amount in the custom popup dialog and click apply.
+6. A negative-priced order line with the selected **Ojol Discount Product** will be appended to the cart.
+
+---
+
+## License
+Released under the [LGPL-3](https://www.gnu.org/licenses/lgpl-3.0.html) License.

__init__.py

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+from . import models

__manifest__.py

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+{
+    "name": "POS Ojol Discount Amount",
+    "version": "19.0.2.0.0",
+    "category": "Point of Sale",
+    "summary": "Global Ojol discount line in POS — configurable discount product per POS config",
+    "author": "Suherdy Yacob",
+    "description": """
+        Adds a configurable Ojol discount workflow to the POS App.
+        When the Ojol pricelist is active:
+        - Products are priced at their full Ojol pricelist price.
+        - The cashier presses the "Rp" numpad button to enter a total order discount.
+        - A single "Diskon Ojol" negative-price line is added to the order.
+        - The Ojol discount product is configurable per POS config in Settings.
+    """,
+    "depends": ["point_of_sale"],
+    "data": [
+        "views/pos_config_views.xml",
+    ],
+    "assets": {
+        "point_of_sale._assets_pos": [
+            "pos_ojol_discount_amount/static/src/overrides/models/product_pricelist.js",
+            "pos_ojol_discount_amount/static/src/overrides/models/pos_config.js",
+            "pos_ojol_discount_amount/static/src/overrides/models/pos_order.js",
+            "pos_ojol_discount_amount/static/src/overrides/models/orderline.js",
+            "pos_ojol_discount_amount/static/src/overrides/components/ojol_discount_dialog.xml",
+            "pos_ojol_discount_amount/static/src/overrides/components/ojol_discount_dialog.js",
+            "pos_ojol_discount_amount/static/src/overrides/screens/product_screen.js",
+        ]
+    },
+    "installable": True,
+    "auto_install": False,
+    "license": "LGPL-3"
+}

models/__init__.py

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+from . import pos_order
+from . import pos_config
+from . import res_config_settings
+from . import product_template

models/pos_config.py

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+from odoo import fields, models
+
+
+class PosConfig(models.Model):
+    _inherit = 'pos.config'
+
+    ojol_discount_product_id = fields.Many2one(
+        'product.product',
+        string='Ojol Discount Product',
+        help='Product used to create the Ojol discount line in POS orders. '
+             'Should be a service product with the same tax configuration as menu items.',
+    )
+
+

models/pos_order.py

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+from odoo import api, fields, models
+
+
+class PosOrderLine(models.Model):
+    _inherit = 'pos.order.line'
+
+    is_ojol_discount = fields.Boolean(
+        string='Is Ojol Discount Line',
+        default=False,
+        help='If True, this line is the global Ojol discount line.',
+    )
+
+    @api.model
+    def _load_pos_data_fields(self, config):
+        fields_list = super()._load_pos_data_fields(config)
+        for f in ('is_ojol_discount',):
+            if f not in fields_list:
+                fields_list.append(f)
+        return fields_list

models/product_template.py

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+# -*- coding: utf-8 -*-
+from odoo import api, models
+from odoo.fields import Domain
+
+class ProductTemplate(models.Model):
+    _inherit = 'product.template'
+
+    @api.model
+    def _load_pos_data_domain(self, data, config):
+        domain = super()._load_pos_data_domain(data, config)
+        if config.ojol_discount_product_id:
+            # Ensure the discount product's template is loaded regardless of other domain constraints
+            discount_tmpl_domain = [('id', '=', config.ojol_discount_product_id.product_tmpl_id.id)]
+            domain = Domain.OR([domain, discount_tmpl_domain])
+        return domain

models/res_config_settings.py

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+from odoo import fields, models
+
+
+class ResConfigSettings(models.TransientModel):
+    _inherit = 'res.config.settings'
+
+    pos_ojol_discount_product_id = fields.Many2one(
+        'product.product',
+        related='pos_config_id.ojol_discount_product_id',
+        string='Ojol Discount Product',
+        readonly=False,
+        help='Product used to create the Ojol discount line in POS orders.',
+    )

static/src/overrides/components/ojol_discount_dialog.js

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+/** @odoo-module **/
+
+import { Component, useState, onMounted } from "@odoo/owl";
+import { Dialog } from "@web/core/dialog/dialog";
+import { formatCurrency } from "@web/core/currency";
+
+export class OjolDiscountDialog extends Component {
+    static template = "pos_ojol_discount_amount.OjolDiscountDialog";
+    static components = { Dialog };
+    static props = {
+        /** Called with the final amount (number) or null (cancel) */
+        getPayload: Function,
+        close: Function,
+        /** Current discount amount already applied (0 if none) */
+        currentAmount: { type: Number, optional: true },
+        /** Currency id for formatting */
+        currencyId: { type: Number, optional: true },
+    };
+    static defaultProps = {
+        currentAmount: 0,
+        currencyId: null,
+    };
+
+    setup() {
+        this.state = useState({
+            rawInput: this.props.currentAmount > 0 ? String(this.props.currentAmount) : "",
+            parsed: this.props.currentAmount || 0,
+        });
+
+        onMounted(() => {
+            const input = document.getElementById("ojol_discount_input");
+            if (input) {
+                input.focus();
+                input.select();
+            }
+        });
+    }
+
+    formatAmount(amount) {
+        if (this.props.currencyId) {
+            return formatCurrency(amount, this.props.currencyId);
+        }
+        return `Rp ${amount.toLocaleString("id-ID")}`;
+    }
+
+    onInput(ev) {
+        const raw = ev.target.value;
+        this.state.rawInput = raw;
+        const parsed = parseFloat(raw);
+        this.state.parsed = isNaN(parsed) || parsed < 0 ? 0 : parsed;
+    }
+
+    onKeydown(ev) {
+        if (ev.key === "Enter" && this.state.parsed > 0) {
+            this.onConfirm();
+        } else if (ev.key === "Escape") {
+            this.onCancel();
+        }
+    }
+
+    onConfirm() {
+        this.props.getPayload(this.state.parsed);
+        this.props.close();
+    }
+
+    onRemove() {
+        this.props.getPayload(0);
+        this.props.close();
+    }
+
+    onCancel() {
+        this.props.getPayload(null);
+        this.props.close();
+    }
+}

static/src/overrides/components/ojol_discount_dialog.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<templates id="template" xml:space="preserve">
+
+    <t t-name="pos_ojol_discount_amount.OjolDiscountDialog">
+        <Dialog title="'Diskon Ojol'" size="'md'" contentClass="'ojol-discount-dialog p-3'">
+            <div class="d-flex flex-column gap-3">
+                <p class="mb-1 text-muted">
+                    Enter the total discount amount for this Ojol order.
+                    This will appear as a separate <strong>Diskon Ojol</strong> line.
+                </p>
+
+                <div class="input-group">
+                    <span class="input-group-text fw-bold">Rp</span>
+                    <input
+                        id="ojol_discount_input"
+                        type="number"
+                        class="form-control form-control-lg text-end"
+                        t-att-value="state.rawInput"
+                        min="0"
+                        step="1000"
+                        placeholder="0"
+                        t-on-input="onInput"
+                        t-on-keydown="onKeydown"
+                    />
+                </div>
+
+                <t t-if="state.parsed > 0">
+                    <div class="alert alert-info py-2 mb-0">
+                        Discount: <strong t-esc="formatAmount(state.parsed)"/>
+                    </div>
+                </t>
+                <t t-if="props.currentAmount > 0">
+                    <div class="text-muted small">
+                        Current discount: <span t-esc="formatAmount(props.currentAmount)"/>
+                        (will be replaced)
+                    </div>
+                </t>
+            </div>
+
+            <t t-set-slot="footer">
+                <button class="btn btn-secondary" t-on-click="onCancel">Cancel</button>
+                <t t-if="props.currentAmount > 0">
+                    <button class="btn btn-outline-danger" t-on-click="onRemove">Remove Discount</button>
+                </t>
+                <button class="btn btn-primary" t-on-click="onConfirm" t-att-disabled="state.parsed &lt;= 0">
+                    Apply Discount
+                </button>
+            </t>
+        </Dialog>
+    </t>
+
+</templates>

static/src/overrides/components/orderline.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<templates id="template" xml:space="preserve">
+    <t t-inherit="point_of_sale.Orderline" t-inherit-mode="extension">
+        <xpath expr="//li[@t-if='vals.discount']" position="replace">
+            <li t-if="vals.discount" class="price-per-unit">
+                <i class="fa fa-tag pe-1"/>
+                <t t-if="line.order_id and line.order_id.pricelist_id and line.order_id.pricelist_id.name == 'Ojol'">
+                    <em>Discount <t t-esc="vals.discount"/> </em> off on <t t-esc="vals.noDiscountPrice"/>
+                </t>
+                <t t-else="">
+                    <em><t t-esc="vals.discount" />% </em> discount off on <t t-esc="vals.noDiscountPrice"/>
+                </t>
+            </li>
+        </xpath>
+    </t>
+</templates>

static/src/overrides/models/orderline.js

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+/** @odoo-module **/
+
+import { PosOrderline } from "@point_of_sale/app/models/pos_order_line";
+import { PosOrder } from "@point_of_sale/app/models/pos_order";
+import { patch } from "@web/core/utils/patch";
+
+/**
+ * Register extra fields on PosOrderline so the model store
+ * knows about our custom columns.
+ */
+patch(PosOrderline, {
+    extraFields: {
+        ...(PosOrderline.extraFields || {}),
+        is_ojol_discount: {
+            model: "pos.order.line",
+            name: "is_ojol_discount",
+            type: "boolean",
+            default: false,
+        },
+    },
+});
+
+patch(PosOrder.prototype, {
+    /**
+     * Override getTotalDiscount to include the Ojol global discount line.
+     */
+    getTotalDiscount() {
+        const base = super.getTotalDiscount();
+        const ojolLine = this.lines.find((l) => l.is_ojol_discount);
+        if (ojolLine) {
+            return base + Math.abs(ojolLine.price_unit * ojolLine.qty);
+        }
+        return base;
+    },
+});

static/src/overrides/models/pos_config.js

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+/** @odoo-module **/
+
+import { PosConfig } from "@point_of_sale/app/models/pos_config";
+import { patch } from "@web/core/utils/patch";
+
+patch(PosConfig, {
+    extraFields: {
+        ...(PosConfig.extraFields || {}),
+        ojol_discount_product_id: {
+            model: "pos.config",
+            name: "ojol_discount_product_id",
+            type: "many2one",
+            relation: "product.product",
+        },
+    },
+});

static/src/overrides/models/pos_order.js

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+/** @odoo-module **/
+
+import { PosOrder } from "@point_of_sale/app/models/pos_order";
+import { patch } from "@web/core/utils/patch";
+
+patch(PosOrder.prototype, {
+    /**
+     * Returns the existing Ojol discount orderline, or null.
+     */
+    getOjolDiscountLine() {
+        return this.lines.find((l) => l.is_ojol_discount) || null;
+    },
+
+    /**
+     * Returns the current Ojol discount amount (0 if none).
+     */
+    getOjolDiscount() {
+        const line = this.getOjolDiscountLine();
+        return line ? Math.abs(line.price_unit * line.qty) : 0;
+    },
+
+    /**
+     * Create or update the Ojol global discount line.
+     * @param {number} amount  Positive discount amount (Rp). Pass 0 to remove.
+     */
+    setOjolDiscount(amount) {
+        // Remove any existing Ojol discount line
+        const existing = this.getOjolDiscountLine();
+        if (existing) {
+            existing.delete();
+        }
+
+        if (!amount || amount <= 0) {
+            return;
+        }
+
+        const discProduct = this.config.ojol_discount_product_id;
+        if (!discProduct) {
+            console.warn(
+                "[OjolDiscount] No Ojol discount product configured in POS settings."
+            );
+            return;
+        }
+
+        // The discount product may be a product.product or product.template
+        // config field is Many2one to product.product
+        const productVariant = discProduct;
+        const productTmpl = productVariant.product_tmpl_id;
+
+        if (!productTmpl) {
+            console.warn("[OjolDiscount] Cannot resolve product template for discount product.");
+            return;
+        }
+
+        // Create negative-price discount line
+        this.models["pos.order.line"].create({
+            order_id: this,
+            product_id: productVariant,
+            product_tmpl_id: productTmpl,
+            price_unit: -Math.abs(amount),
+            qty: 1,
+            discount: 0,
+            price_type: "manual",
+            full_product_name: "Diskon Ojol",
+            is_ojol_discount: true,
+        });
+    },
+});

static/src/overrides/models/product_pricelist.js

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+/** @odoo-module **/
+
+import { ProductPricelist } from "@point_of_sale/app/models/product_pricelist";
+import { ProductTemplate } from "@point_of_sale/app/models/product_template";
+import { patch } from "@web/core/utils/patch";
+
+/**
+ * Patch ProductPricelist to ensure rule indexes are always up-to-date.
+ * The lazy-recompute guard (_indexedItemCount) ensures that if items are loaded
+ * after the pricelist is set up, the indexes will be recomputed on first use.
+ */
+patch(ProductPricelist.prototype, {
+    setup() {
+        super.setup(...arguments);
+        this._indexedItemCount = this.item_ids?.length || 0;
+    },
+
+    getCategoryRulesIds(categoryIds) {
+        if (this._indexedItemCount !== (this.item_ids?.length || 0)) {
+            this.computeRuleIndexes();
+            this._indexedItemCount = this.item_ids?.length || 0;
+        }
+        return super.getCategoryRulesIds(...arguments);
+    },
+
+    getGlobalRulesIds() {
+        if (this._indexedItemCount !== (this.item_ids?.length || 0)) {
+            this.computeRuleIndexes();
+            this._indexedItemCount = this.item_ids?.length || 0;
+        }
+        return super.getGlobalRulesIds(...arguments);
+    },
+
+    getRulesByProductId(productId) {
+        if (this._indexedItemCount !== (this.item_ids?.length || 0)) {
+            this.computeRuleIndexes();
+            this._indexedItemCount = this.item_ids?.length || 0;
+        }
+        return super.getRulesByProductId(...arguments);
+    },
+
+    getRulesByTmplId(tmplId) {
+        if (this._indexedItemCount !== (this.item_ids?.length || 0)) {
+            this.computeRuleIndexes();
+            this._indexedItemCount = this.item_ids?.length || 0;
+        }
+        return super.getRulesByTmplId(...arguments);
+    },
+});

static/src/overrides/screens/product_screen.js

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+/** @odoo-module **/
+
+import { ProductScreen } from "@point_of_sale/app/screens/product_screen/product_screen";
+import { patch } from "@web/core/utils/patch";
+import { useService } from "@web/core/utils/hooks";
+import { OjolDiscountDialog } from "../components/ojol_discount_dialog";
+import { makeAwaitable, ask } from "@point_of_sale/app/utils/make_awaitable_dialog";
+import { _t } from "@web/core/l10n/translation";
+
+patch(ProductScreen.prototype, {
+    setup() {
+        super.setup(...arguments);
+        this.dialog = useService("dialog");
+    },
+
+    getNumpadButtons() {
+        const buttons = super.getNumpadButtons();
+        const discountButton = buttons.find((b) => b.value === "discount");
+        if (discountButton && this.pos.selectedOrder?.pricelist_id?.name === "Ojol") {
+            discountButton.text = "Rp";
+            discountButton.disabled = false;
+        }
+        return buttons;
+    },
+
+    /**
+     * Override numpad click: intercept "discount" mode in Ojol pricelist
+     * to show the global discount dialog instead of per-line discount.
+     */
+    async onNumpadClick(buttonValue) {
+        const order = this.pos.selectedOrder;
+        if (
+            buttonValue === "discount" &&
+            order?.pricelist_id?.name === "Ojol"
+        ) {
+            await this._showOjolDiscountDialog(order);
+            return;
+        }
+        return super.onNumpadClick(buttonValue);
+    },
+
+    async _showOjolDiscountDialog(order) {
+        if (!this.pos.config.ojol_discount_product_id) {
+            await ask(this.dialog, {
+                title: _t("Configuration Missing"),
+                body: _t("Ojol discount product is not configured. Please configure it in POS Settings first."),
+            });
+            return;
+        }
+
+        const currentAmount = order.getOjolDiscount();
+        const currencyId = this.pos.currency?.id;
+
+        const amount = await makeAwaitable(this.dialog, OjolDiscountDialog, {
+            currentAmount,
+            currencyId,
+        });
+
+        // null = user cancelled, undefined = closed without action
+        if (amount === null || amount === undefined) {
+            return;
+        }
+
+        order.setOjolDiscount(amount);
+    },
+});

views/pos_config_views.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <!-- Direct configuration on Point of Sale (pos.config form) -->
+    <record id="view_pos_config_form_ojol" model="ir.ui.view">
+        <field name="name">pos.config.form.ojol</field>
+        <field name="model">pos.config</field>
+        <field name="inherit_id" ref="point_of_sale.pos_config_view_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//page[@name='configuration']" position="inside">
+                <group string="Ojol Discount" name="ojol_discount_group">
+                    <field name="ojol_discount_product_id"
+                           options="{'no_create': True}"
+                           placeholder="Select Ojol Discount Product…"/>
+                </group>
+            </xpath>
+        </field>
+    </record>
+
+    <!-- Configuration on Global Settings (res.config.settings form) -->
+    <record id="res_config_settings_view_form_ojol" model="ir.ui.view">
+        <field name="name">res.config.settings.view.form.inherit.ojol</field>
+        <field name="model">res.config.settings</field>
+        <field name="priority" eval="95"/>
+        <field name="inherit_id" ref="point_of_sale.res_config_settings_view_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//setting[@id='pos_global_discount']" position="after">
+                <setting string="Ojol Global Discount" help="Configure the dedicated service product used for order-level Ojol discounts.">
+                    <field name="pos_ojol_discount_product_id"
+                           options="{'no_create': True}"
+                           placeholder="Select Ojol Discount Product…"/>
+                </setting>
+            </xpath>
+        </field>
+    </record>
+</odoo>