Order the list of variants on the product

Closes #14285

modules/product/CHANGELOG

@@ -1,3 +1,4 @@
+* Order the list of variants on the product
 * Allow a different list price to be set for each variant
 
 Version 7.6.0 - 2025-04-28

modules/product/product.py

@@ -120,6 +120,10 @@ class Template(
         'template', 'category', "Categories", readonly=True)
     products = fields.One2Many(
         'product.product', 'template', "Variants",
+        order=[
+            ('position', 'ASC NULLS FIRST'),
+            ('id', 'ASC'),
+            ],
         help="The different variants the product comes in.")
 
     @classmethod
@@ -416,6 +420,9 @@ class Product(
     code = fields.Char(
         "Code", readonly=True,
         help="A unique identifier for the variant.")
+    position = fields.Integer(
+        "Position",
+        help="The order of the variant in the list of variants on product.")
     identifiers = fields.One2Many(
         'product.identifier', 'product', "Identifiers",
         help="Other identifiers associated with the variant.")
@@ -498,6 +505,10 @@ class Product(
             ]
         cls._sql_indexes.add(
             Index(t, (t.code, Index.Similarity(cardinality='high'))))
+        cls._sql_indexes.add(
+            Index(t,
+                (t.position, Index.Range(order='ASC NULLS FIRST')),
+                (t.id, Index.Range(order='ASC'))))
 
         for attr in dir(Template):
             tfield = getattr(Template, attr)

modules/product/product.xml

@@ -113,6 +113,13 @@ this repository contains the full copyright notices and license terms. -->
             <field name="name">product_tree_simple</field>
         </record>
 
+        <record model="ir.ui.view" id="product_view_tree_simple_sequence">
+            <field name="model">product.product</field>
+            <field name="type">tree</field>
+            <field name="priority" eval="20"/>
+            <field name="name">product_tree_simple_sequence</field>
+        </record>
+
         <record model="ir.ui.view" id="product_view_form">
             <field name="model">product.product</field>
             <field name="type" eval="None"/>

modules/product/view/product_form_simple.xml

@@ -2,9 +2,6 @@
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
 <form>
-    <label name="template"/>
-    <field name="template"/>
-    <newline/>
     <label name="code"/>
     <group col="-1" name="code" string="">
         <field name="prefix_code"/>
@@ -13,6 +10,11 @@ this repository contains the full copyright notices and license terms. -->
     <label name="active"/>
     <field name="active"/>
 
+    <label name="template"/>
+    <field name="template"/>
+    <label name="position"/>
+    <field name="position"/>
+
     <label name="list_price"/>
     <field name="list_price"/>
     <newline/>

modules/product/view/product_tree_simple_sequence.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<tree sequence="position">
+    <field name="rec_name" expand="1"/>
+</tree>

modules/product/view/template_form.xml

@@ -29,7 +29,7 @@ this repository contains the full copyright notices and license terms. -->
           <field name="cost_price_method"/>
           <newline/>
           <field name="products" mode="form,tree" colspan="2"
-              view_ids="product.product_view_form_simple"/>
+              view_ids="product.product_view_form_simple,product.product_view_tree_simple_sequence"/>
           <group id="categories" colspan="2" col="2" yexpand="1" yfill="1">
               <field name="categories" colspan="2" yexpand="1" yfill="1" view_ids="product.category_view_list"/>
           </group>

modules/web_shop_shopify/product.py

@@ -192,7 +192,7 @@ class Product(IdentifiersMixin, metaclass=PoolMeta):
     @classmethod
     def __setup__(cls):
         super().__setup__()
-        cls._shopify_fields.update(['code', 'attributes'])
+        cls._shopify_fields.update(['code', 'attributes', 'position'])
 
     @classmethod
     def get_shopify_identifier_to_update(cls, records):