[ADD] pos_price_to_weight: choose price field

pos_price_to_weight/__manifest__.py

@@ -17,6 +17,7 @@
     'data': [
         'data/barcode_rule.xml',
         'views/assets.xml',
+        'views/view_pos_config.xml',
     ],
     'demo': [
         'demo/product_product.xml',

pos_price_to_weight/demo/product_product.xml

@@ -11,6 +11,8 @@ License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
         <field name="name">Apples (with Price To Weight Barcode)</field>
         <field name="barcode">0212345000007</field>
         <field name="list_price">1.50</field>
+        <field name="available_in_pos">True</field>
+        <field name="to_weight">True</field>
         <field name="uom_id" ref="uom.product_uom_kgm"/>
         <field name="uom_po_id" ref="uom.product_uom_kgm"/>
     </record>

pos_price_to_weight/models/__init__.py

@@ -1 +1,2 @@
 from . import barcode_rule
+from . import pos_config

pos_price_to_weight/models/pos_config.py

@@ -0,0 +1,22 @@
+# Copyright 2020 Coop IT Easy - Manuel Claeys Bouuaert
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import fields, models
+
+
+class PosConfig(models.Model):
+    _inherit = 'pos.config'
+
+    pos_price_to_weight_price_field_id = fields.Many2one(
+        string="Price To Weight Field",
+        comodel_name="ir.model.fields",
+        domain=[("model", "=", "product.product"), ("ttype", "=", "float")],
+        required=True,
+        default=lambda x: x._default_pos_price_to_weight_price_field_id(),
+    )
+
+    pos_price_to_weight_price_field_name = fields.Char(
+        related="pos_price_to_weight_price_field_id.name")
+
+    def _default_pos_price_to_weight_price_field_id(self):
+        return self.env.ref("product.field_product_product__list_price")

pos_price_to_weight/readme/CONFIGURE.rst

@@ -1,2 +1,15 @@
-* Go to 'Point of Sale' / 'Configuration' / 'Barcode Nomenclatures'
+* Go to Point of Sale > Configuration > Barcode Nomenclatures
 * Edit your barcode rules, according to your barcodes settings
+
+* Go to Point of Sale > Configuration > Point of Sale
+* Select the 'Unit Price' field that will be used to convert the price to weight.
+
+.. image:: ../static/description/pos_config_form.png
+   :width: 800 px
+
+**Note:**
+
+By default, this is the field ``list_price`` that will be used.
+If you want to use a custom field, it should be loaded in the javascript file calling
+
+``models.load_fields("product.product", ['my_custom_field']);``

pos_price_to_weight/static/src/js/models.js

@@ -27,8 +27,11 @@ odoo.define('pos_price_to_weight.models', function (require) {
             }
             var quantity = 0;
             var price = parseFloat(parsed_code.value) || 0;
-            if (price !== 0 && product.list_price !== 0){
-                quantity = price / product.list_price;
+
+            var product_price = product[this.config.pos_price_to_weight_price_field_name];
+
+            if (price !== 0 && product_price !== 0){
+                quantity = price / product_price;
             }
             selectedOrder.add_product(product, {quantity:  quantity, merge: false});
             return true;

pos_price_to_weight/views/view_pos_config.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright 2018 Coop IT Easy - Manuel Claeys Bouuaert
+     License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+-->
+<odoo>
+
+    <record id="view_pos_config_form" model="ir.ui.view">
+        <field name="model">pos.config</field>
+        <field name="inherit_id" ref="point_of_sale.pos_config_view_form"/>
+        <field name="arch" type="xml">
+            <div id="posbox_reference" position="inside">
+                <div class="col-xs-12 col-md-6 o_setting_box" id="pos_price_to_weight">
+                    <div class="o_setting_right_pane">
+                        <label for="pos_price_to_weight_price_field_id"/>
+                        <div class="text-muted">
+                           Unit Price field used when converting scanned weight to price.
+                        </div>
+                        <div class="content-group mt16">
+                            <field name="pos_price_to_weight_price_field_id" colspan="4" nolabel="1" options="{'no_create': True}"/>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </field>
+    </record>
+
+</odoo>