Noupdate XML entry Changed

Rationale

When Odoo updates a module, it will reload all the entries described in XML (or CSV) files, excepted the entries flagged as noupdate="1".

Between 2 major Odoo release, some “no updatable” entries changed.

When Openupgrade Maintainers initialize the project for a new release, a new file is created for each module, named noupdate_changes.xml. It will contain all the changes between the two versions for the “no updatable” entries.

Source Code Differences

Version 14.0

In : odoo/addons/base/security/base_security.xml

<odoo noupdate="1">
    <record model="ir.rule" id="ir_default_system_rule">
        <field name="name">Defaults: alter all defaults</field>
        <field name="model_id" ref="model_ir_default"/>
        <field name="domain_force">[(1,'=',1)]</field>
        <field name="groups" eval="[(4, ref('base.group_system'))]"/>
        <field name="perm_read" eval="False"/>
    </record>
</odoo>

See Full v14 Code Source of base_security.

And in : odoo/addons/base/data/report_paperformat_data.xml

<odoo noupdate="1">

    <record id="paperformat_batch_deposit" model="report.paperformat">
        <field name="name">US Batch Deposit</field>
        <field name="default" eval="False" />
        <field name="format">Letter</field>
        <field name="page_height">0</field>
        <field name="page_width">0</field>
        <field name="orientation">Portrait</field>
        <field name="margin_top">15</field>
        <field name="margin_bottom">10</field>
        <field name="margin_left">10</field>
        <field name="margin_right">10</field>
        <field name="header_line" eval="False" />
        <field name="header_spacing">0</field>
        <field name="dpi">90</field>
    </record>

</odoo>

See Full v14 Code Source of report_paperformat_data.

Version 15.0

In : odoo/addons/base/security/base_security.xml

<odoo noupdate="1">
    <record model="ir.rule" id="ir_default_system_rule">
        <field name="name">Defaults: alter all defaults</field>
        <field name="model_id" ref="model_ir_default"/>
        <field name="domain_force">[(1,'=',1)]</field>
        <field name="groups" eval="[Command.link(ref('base.group_system'))]"/>
        <field name="perm_read" eval="False"/>
    </record>
</odoo>

See Full v15 Code Source of base_security.

In : odoo/addons/base/data/report_paperformat_data.xml

<odoo noupdate="1">

    <record id="paperformat_batch_deposit" model="report.paperformat">
        <field name="name">US Batch Deposit</field>
        <field name="default" eval="False" />
        <field name="format">Letter</field>
        <field name="page_height">0</field>
        <field name="page_width">0</field>
        <field name="orientation">Portrait</field>
        <field name="margin_top">15</field>
        <field name="margin_bottom">30</field>
        <field name="margin_left">10</field>
        <field name="margin_right">10</field>
        <field name="header_line" eval="False" />
        <field name="header_spacing">15</field>
        <field name="dpi">90</field>
    </record>

</odoo>

See Full v15 Code Source of report_paperformat_data.

noupdate_changes.xml File

For the two elements mentioned above, here is what the file contains

<odoo>

    <record id="ir_default_system_rule" model="ir.rule">
        <field name="groups" eval="[Command.link(ref('base.group_system'))]"/>
    </record>

    <record id="paperformat_batch_deposit" model="report.paperformat">
        <field name="header_spacing">15</field>
        <field name="margin_bottom">30</field>
    </record>

</odoo>

We can see that:

2 values changed for the paperformat paperformat_batch_deposit.
A changed is mentionned for the rule ir_default_system_rule. however, nothing changed and it is only a syntaxic changes. [(4, ref('base.group_system'))] is equivalent to [Command.link(ref('base.group_system'))]

Result without migration script / Expected Result

V14 table `report_paperformat`

id	name	header_spacing	margin_bottom
28	US Batch Deposit	0	10

V15 table `report_paperformat` (Without migration script)

id	name	header_spacing”	margin_bottom
28	US Batch Deposit	0	10

Problem:

The paperformat doesn’t contains the new default values.

V15 table `ir_act_window_view` (With migration script)

id	name	header_spacing”	margin_bottom
28	US Batch Deposit	15	30

Contribution to OpenUpgrade

Update `noupdate_changes.xml` file

Open the file and for each item, try to know if it is a real change (as in the case of the report.paperformat), or a false positive (as in the case of the ir.rule)

Then comment all the false positives elements.

<odoo>

    <!--
    <record id="ir_default_system_rule" model="ir.rule">
        <field name="groups" eval="[Command.link(ref('base.group_system'))]"/>
    </record>
    -->

    <record id="paperformat_batch_deposit" model="report.paperformat">
        <field name="header_spacing">15</field>
        <field name="margin_bottom">30</field>
    </record>

</odoo>

See Full noupdate_changes file for base module between v14 et v15.

Write migration Script

in the post-migration.py script, add:

from openupgradelib import openupgrade


@openupgrade.migrate()
def migrate(env, version):
    openupgrade.load_data(env.cr, "base", "15.0.1.3/noupdate_changes.xml")

See Full post migration Script.

Notes

For some people, resetting to the new defaults may not be desirable. In this case you will have to change the item to the previous values after the migration.
If the field whose value has changed was translatable, then changing the value will not reset the translation(s), For exemple, for the mail.template named project.mail_template_data_project_task.

See Full noupdate_changes file.

In that case, delete the translation:
```
from openupgradelib import openupgrade


@openupgrade.migrate()
def migrate(env, version):
    openupgrade.load_data(env.cr, "project", "15.0.1.2/noupdate_changes.xml")
    openupgrade.delete_record_translations(env.cr, "project", ["mail_template_data_project_task"])
```
See Full post migration file of the project module.