From 074f4e517a1b6d3ec4825705d97c74455e90f665 Mon Sep 17 00:00:00 2001
From: Alexis de Lattre <alexis.delattre@akretion.com>
Date: Thu, 7 Dec 2017 13:50:46 +0100
Subject: [PATCH] pos_usability: add group by on pos category on products
 search view

Add link to products from pos.category form view (same as on product.category form view)
---
 pos_usability/__init__.py      |  1 +
 pos_usability/__manifest__.py  | 10 ++++++--
 pos_usability/pos.py           | 25 ++++++++++++++++++++
 pos_usability/pos_view.xml     | 28 ++++++++++++++---------
 pos_usability/product_view.xml | 42 ++++++++++++++++++++++++++++++++++
 5 files changed, 93 insertions(+), 13 deletions(-)
 create mode 100644 pos_usability/pos.py
 create mode 100644 pos_usability/product_view.xml

diff --git a/pos_usability/__init__.py b/pos_usability/__init__.py
index d7d7308..11fbc8e 100644
--- a/pos_usability/__init__.py
+++ b/pos_usability/__init__.py
@@ -1,3 +1,4 @@
 # -*- coding: utf-8 -*-
 
+from . import pos
 from . import product
diff --git a/pos_usability/__manifest__.py b/pos_usability/__manifest__.py
index 2472788..3be539d 100644
--- a/pos_usability/__manifest__.py
+++ b/pos_usability/__manifest__.py
@@ -18,7 +18,13 @@ This module has been written by Alexis de Lattre from Akretion <alexis.delattre@
     """,
     'author': 'Akretion',
     'website': 'http://www.akretion.com',
-    'depends': ['point_of_sale'],
-    'data': ['pos_view.xml'],
+    'depends': [
+        'point_of_sale',
+        'product_usability',  # I need it for the groupby on the search view product.product_template_search_view
+        ],
+    'data': [
+        'pos_view.xml',
+        'product_view.xml',
+        ],
     'installable': True,
 }
diff --git a/pos_usability/pos.py b/pos_usability/pos.py
new file mode 100644
index 0000000..e1e1088
--- /dev/null
+++ b/pos_usability/pos.py
@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+# © 2017 Akretion (Alexis de Lattre <alexis.delattre@akretion.com>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class PosCategory(models.Model):
+    _inherit = 'pos.category'
+
+    product_count = fields.Integer(
+        '# Products', compute='_compute_product_count',
+        help="The number of products under this point of sale category "
+        "(does not consider the children categories)")
+
+    # inspired by the code of odoo/addons/product/models/product.py
+    def _compute_product_count(self):
+        read_group_res = self.env['product.template'].read_group(
+            [('pos_categ_id', 'in', self.ids)],
+            ['pos_categ_id'], ['pos_categ_id'])
+        group_data = dict(
+            (data['pos_categ_id'][0], data['pos_categ_id_count']) for data
+            in read_group_res)
+        for pos_categ in self:
+            pos_categ.product_count = group_data.get(pos_categ.id, 0)
diff --git a/pos_usability/pos_view.xml b/pos_usability/pos_view.xml
index be45b10..de07928 100644
--- a/pos_usability/pos_view.xml
+++ b/pos_usability/pos_view.xml
@@ -36,19 +36,25 @@
     </field>
 </record>
 
-<!-- put option "available in POS" at the top of product form view -->
-<record id="product_template_form_view" model="ir.ui.view">
-    <field name="name">usability.pos.product.template</field>
-    <field name="model">product.template</field>
-    <field name="inherit_id" ref="point_of_sale.product_template_form_view"/>
+<record id="product_pos_category_form_view" model="ir.ui.view">
+    <field name="name">pos.category.form</field>
+    <field name="model">pos.category</field>
+    <field name="inherit_id" ref="point_of_sale.product_pos_category_form_view"/>
     <field name="arch" type="xml">
-        <xpath expr="//group[@name='pos']/field[@name='available_in_pos']" position="replace"/>
-        <xpath expr="//div[@name='options']" position="inside">
-            <div name="available_in_pos">
-                <field name="available_in_pos"/>
-                <label for="available_in_pos"/>
+        <div class="oe_left" position="before">
+            <div class="oe_button_box" name="button_box">
+                <button class="oe_stat_button"
+                        name="%(product.product_template_action_all)d"
+                        icon="fa-th-list"
+                        type="action"
+                        context="{'search_default_pos_categ_id': active_id}">
+                    <div class="o_form_field o_stat_info">
+                        <span class="o_stat_value"><field name="product_count"/></span>
+                        <span class="o_stat_text"> Products</span>
+                    </div>
+                </button>
             </div>
-        </xpath>
+        </div>
     </field>
 </record>
 
diff --git a/pos_usability/product_view.xml b/pos_usability/product_view.xml
new file mode 100644
index 0000000..f5313d1
--- /dev/null
+++ b/pos_usability/product_view.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!--
+  © 2015-2016 Akretion (Alexis de Lattre <alexis.delattre@akretion.com>)
+  License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+-->
+
+<odoo>
+
+
+<!-- put option "available in POS" at the top of product form view -->
+<record id="product_template_form_view" model="ir.ui.view">
+    <field name="name">usability.pos.product.template</field>
+    <field name="model">product.template</field>
+    <field name="inherit_id" ref="point_of_sale.product_template_form_view"/>
+    <field name="arch" type="xml">
+        <xpath expr="//group[@name='pos']/field[@name='available_in_pos']" position="replace"/>
+        <xpath expr="//div[@name='options']" position="inside">
+            <div name="available_in_pos">
+                <field name="available_in_pos"/>
+                <label for="available_in_pos"/>
+            </div>
+        </xpath>
+    </field>
+</record>
+
+<record id="product_template_search_view" model="ir.ui.view">
+    <field name="name">pos_usability.product.template.search</field>
+    <field name="model">product.template</field>
+    <field name="inherit_id" ref="product_usability.product_template_search_view"/>
+    <field name="arch" type="xml">
+        <field name="categ_id" position="after">
+            <field name="pos_categ_id" filter_domain="[('pos_categ_id', 'child_of', self)]"/>
+        </field>
+        <filter name="categ_groupby" position="after">
+            <filter name="pos_categ_groupby" string="Point of Sale Category" context="{'group_by': 'pos_categ_id'}"/>
+        </filter>
+    </field>
+</record>
+
+
+</odoo>