[MIG] mail_improved_tracking_value: migration to Odoo 11

Improve the tracking of changed values on database fields
("mail.tracking.value" functionality) by adding many2many and one2many support.
As well as a more user friendly view to consult changes recorded.

mail_improved_tracking_value/README.rst

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+.. image:: https://img.shields.io/badge/licence-AGPL--3-blue.svg
+   :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+   :alt: License: AGPL-3
+
+==============================
+Tracking value change improved
+==============================
+
+This module extends the mail_tracking_value functionality that records
+value changes on predefined fields.
+It adds support for many2many and one2many fields, which are not handled
+well by default.
+It also implements a new view (little bit more user friendly than the
+existing one) to watch for changes 
+
+Installation
+============
+
+To install this module, you need to:
+
+#. Just install the module
+
+Configuration
+=============
+
+To configure this module, you need to:
+
+# No configuration is necessary
+
+Usage
+=====
+
+To access the new view displaying value changes :
+
+    Settings -> Technical -> Improved tracking values
+
+
+Known issues / Roadmap
+======================
+
+ * Improve rendering of values depending of type using qweb widgets
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues
+<https://github.com/OCA/mail_improved_tracking_value/issues>`_. In case of trouble, please
+check there if your issue has already been reported. If you spotted it first,
+help us smash it by providing detailed and welcomed feedback.
+
+Credits
+=======
+
+Images
+------
+
+* Odoo Community Association: `Icon <https://github.com/OCA/maintainer-tools/blob/master/template/module/static/description/icon.svg>`_.
+
+Contributors
+------------
+
+* Thierry Ducrest <thierry.ducrest@camptocamp.com>
+
+Maintainer
+----------
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+This module is maintained by the OCA.
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.
+
+To contribute to this module, please visit https://odoo-community.org.

mail_improved_tracking_value/__init__.py

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+# Copyright 2018 Camptocamp SA
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from . import models

mail_improved_tracking_value/__manifest__.py

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+# Copyright 2018 Camptocamp SA
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+{
+    'name': 'Improved tracking value change',
+    'version': '11.0.1.0.0',
+    'summary': 'Improves tracking changed values for certain type of fields.'
+               'Adds a user-friendly view to consult them.',
+    'author': 'Camptocamp, Odoo Community Association (OCA)',
+    'license': 'AGPL-3',
+    'category': 'Tools',
+    'website': 'https://github.com/OCA/social',
+    'depends': [
+        'base',
+        'mail'
+    ],
+    'data': [
+        'views/mail_tracking_value.xml'
+    ],
+}

mail_improved_tracking_value/models/__init__.py

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+# -*- coding: utf-8 -*-
+# Copyright 2017 Camptocamp SA
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from . import mail_tracking_value

mail_improved_tracking_value/models/mail_tracking_value.py

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+# Copyright 2018 Camptocamp SA
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+import json
+
+from odoo import api, fields, models
+
+
+class MailTrackingValue(models.Model):
+
+    _inherit = "mail.tracking.value"
+
+    new_value_formatted = fields.Char(
+        compute='_compute_formatted_value',
+        string='New value',
+    )
+    old_value_formatted = fields.Char(
+        compute='_compute_formatted_value',
+        string='Old value',
+    )
+    record_name = fields.Char(
+        related='mail_message_id.record_name',
+    )
+    model = fields.Char(
+        related='mail_message_id.model',
+        store='True',
+        string='Model',
+    )
+
+    @api.depends('new_value_char', 'new_value_integer', 'new_value_float',
+                 'new_value_text', 'new_value_datetime', 'new_value_monetary',
+                 'old_value_char', 'old_value_integer', 'old_value_float',
+                 'old_value_text', 'old_value_datetime', 'old_value_monetary')
+    def _compute_formatted_value(self):
+        """ Sets the value formatted field used in the view """
+        for record in self:
+            if record.field_type in ('many2many', 'one2many', 'char'):
+                record.new_value_formatted = record.new_value_char
+                record.old_value_formatted = record.old_value_char
+            elif record.field_type == 'integer':
+                record.new_value_formatted = str(record.new_value_integer)
+                record.old_value_formatted = str(record.old_value_integer)
+            elif record.field_type == 'float':
+                record.new_value_formatted = str(record.new_value_float)
+                record.old_value_formatted = str(record.old_value_float)
+            elif record.field_type == 'monetary':
+                record.new_value_formatted = str(record.new_value_monetary)
+                record.old_value_formatted = str(record.old_value_monetary)
+            elif record.field_type == 'datetime':
+                record.new_value_formatted = str(record.new_value_datetime)
+                record.old_value_formatted = str(record.old_value_datetime)
+            elif record.field_type == 'text':
+                record.new_value_formatted = record.new_value_text
+                record.old_value_formatted = record.old_value_text
+
+    @api.model
+    def create_tracking_values(self, old_value, new_value, col_name, col_info):
+        """ Add tacking capabilities for many2many and one2many fields """
+        if col_info['type'] in ('many2many', 'one2many'):
+
+            def get_values(source, prefix):
+                if source:
+                    names = ', '.join(source.mapped('display_name'))
+                    json_ids = json.dumps(source.ids)
+                else:
+                    names = ''
+                    json_ids = json.dumps([])
+                return {
+                    '{}_value_char'.format(prefix): names,
+                    '{}_value_text'.format(prefix): json_ids,
+                }
+
+            values = {
+                'field': col_name,
+                'field_desc': col_info['string'],
+                'field_type': col_info['type'],
+            }
+            values.update(get_values(old_value, 'old'))
+            values.update(get_values(new_value, 'new'))
+            return values
+        else:
+            return super().create_tracking_values(
+                old_value, new_value,
+                col_name, col_info
+            )

mail_improved_tracking_value/views/mail_tracking_value.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="tracking_change_list" model="ir.ui.view">
+        <field name="name">Tracking change list"</field>
+        <field name="model">mail.tracking.value</field>
+        <field name="arch" type="xml">
+            <tree string="Tracking change list" default_order="create_date desc"
+                create="false" edit="false" delete="false">
+                <field name="create_date" string="On"/>
+                <field name="record_name" string="For"/>
+                <field name="field_desc" string="Field changed"/>
+                <field name="old_value_formatted"/>
+                <field name="new_value_formatted"/>
+                <field name="model"/>
+            </tree>
+        </field>
+    </record>
+
+    <record id="tracking_change_form_view" model="ir.ui.view">
+        <field name="name">Tracking change form</field>
+        <field name="model">mail.tracking.value</field>
+        <field name="priority" eval="20"/>
+        <field name="arch" type="xml">
+            <form>
+                <sheet>
+                    <field name="create_date" class="oe-inline"/>
+                    <group name="main">
+                        <field name="mail_message_id" string="For"/>
+                        <field name="field_desc" string="Field changed"/>
+                        <field name="old_value_formatted"/>
+                        <field name="new_value_formatted"/>
+                        <field name="model"/>
+                    </group>
+                </sheet>
+            </form>
+        </field>
+    </record>
+
+    <record id="tracking_change_list_filter" model="ir.ui.view">
+        <field name="name">Tracking change list filter</field>
+        <field name="model">mail.tracking.value</field>
+        <field name="arch" type="xml">
+            <search string="Search">
+                <field name="model"/>
+                <group expand="1" string="Group By">
+                    <filter name="model" string="Model" context="{'group_by':'model'}"/>
+                </group>
+            </search>
+        </field>
+    </record>
+
+    <record id="action_view_tracking_changes" model="ir.actions.act_window">
+        <field name="name">View last tracked changes</field>
+        <field name="res_model">mail.tracking.value</field>
+        <field name="view_mode">tree,form</field>
+        <field name="view_ids" eval="[(5, 0, 0),
+            (0, 0, {'view_mode': 'tree', 'view_id': ref('tracking_change_list')}),
+            (0, 0, {'view_mode': 'form', 'view_id': ref('tracking_change_form_view')})]"
+        />
+    </record>
+
+    <menuitem action="action_view_tracking_changes"
+        id ="menu_action_view_tracking_changes"
+        name="Improved Tracking Values"
+        parent="base.menu_email"
+        sequence="10"
+    />
+
+</odoo>