Merge pull request #1728 from vauxoo-dev/12.0-ir_sequence_standard_default-ebirbe

[ADD] ir_sequence_standard_default: Use Standard instead No Gap sequence

ir_sequence_standard_default/README.rst

@@ -0,0 +1,137 @@
+==============================
+IrSequence Standard by Default
+==============================
+
+.. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |badge1| image:: https://img.shields.io/badge/maturity-Beta-yellow.png
+    :target: https://odoo-community.org/page/development-status
+    :alt: Beta
+.. |badge2| image:: https://img.shields.io/badge/licence-AGPL--3-blue.png
+    :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+    :alt: License: AGPL-3
+.. |badge3| image:: https://img.shields.io/badge/github-OCA%2Fserver--tools-lightgray.png?logo=github
+    :target: https://github.com/OCA/server-tools/tree/12.0/ir_sequence_standard_default
+    :alt: OCA/server-tools
+.. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
+    :target: https://translation.odoo-community.org/projects/server-tools-12-0/server-tools-12-0-ir_sequence_standard_default
+    :alt: Translate me on Weblate
+.. |badge5| image:: https://img.shields.io/badge/runbot-Try%20me-875A7B.png
+    :target: https://runbot.odoo-community.org/runbot/149/12.0
+    :alt: Try me on Runbot
+
+|badge1| |badge2| |badge3| |badge4| |badge5| 
+
+Set the implementation to "Standard" in all your current Sequences
+(ir.sequence) and all new sequences are created as "Standard" by default
+instead of "No Gap" implementation.
+
+What's the problem with "No Gap" Sequence Implementations
+=========================================================
+
+"No Gap" is the default value of sequences in Odoo. However, this kind of
+sequences cause more locks and can turn a database slow.
+
+Taking as example an invoice, if you assign an invoice number to one record,
+but it sill not finish the process, this process must end in order to another
+invoice could assign a new number and there was no gaps between the invoice
+numbers. It seems to be good at first sight. But the problem starts when there
+is a chained process.
+
+Imagine that there is one user that executes a process that produces 100
+invoices and these at the same time produces 100 journal entries that also use
+a consecutive (no gap) sequence. And also those invoices are sent to sign with
+and external institution (that could take 2 seconds in giving a response
+because of internet latency or server load), and maybe they made another
+calculations that makes them to take 5 seconds more for each invoice, and all
+this is chained to one single transaction. This means that for 8.5 minutes
+anybody else could confirm invoices, neither journal entries of the involved
+journals.
+
+Now, think there is 20 users that have to execute a similar process. The
+problem turns exponential. If another user comes to make an operation with the
+same jornal it will thrown a concurrency failure.
+
+You can mitigate it if you segment each transaction and don't chain them. It
+means, making commit for each invoice or process. It reduces the
+probability that there is a concurrency error or a lock wait. However, it still
+not solve it completely.
+
+Why to use Sequences with "Standard" Implementation
+===================================================
+
+If you use the standard sequence of PosgreSQL, it doesn't lock because at the
+moment the request is done, the next sequence number it is changed in an
+isolated transaction, and it have not to wait the other transaction to end.
+However, if the transaction produces a rollback, this sequence isn't reverted,
+it means, it's lost. It may be not not serious because when you cancel or
+remove records that number is lost too.
+
+What this module does
+=====================
+
+To eliminate completely that concurrency/slowness problem, this module changes
+all the sequences (ir.sequence) implementation from "No Gap" to "Standard" with
+the awareness that it will skip numbers. In the majority of database models
+and many users projects there is no problem with that jump occurs.
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/OCA/server-tools/issues>`_.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us smashing it by providing a detailed and welcomed
+`feedback <https://github.com/OCA/server-tools/issues/new?body=module:%20ir_sequence_standard_default%0Aversion:%2012.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+
+Do not contact contributors directly about support or help with technical issues.
+
+Credits
+=======
+
+Authors
+~~~~~~~
+
+* Vauxoo
+
+Contributors
+~~~~~~~~~~~~
+
+- Moises López <moylop260@vauxoo.com>
+- Erick Birbe <erick@vauxoo.com>
+
+
+Maintainers
+~~~~~~~~~~~
+
+This module is maintained by the OCA.
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+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.
+
+.. |maintainer-moylop260| image:: https://github.com/moylop260.png?size=40px
+    :target: https://github.com/moylop260
+    :alt: moylop260
+.. |maintainer-ebirbe| image:: https://github.com/ebirbe.png?size=40px
+    :target: https://github.com/ebirbe
+    :alt: ebirbe
+
+Current `maintainers <https://odoo-community.org/page/maintainer-role>`__:
+
+|maintainer-moylop260| |maintainer-ebirbe| 
+
+This module is part of the `OCA/server-tools <https://github.com/OCA/server-tools/tree/12.0/ir_sequence_standard_default>`_ project on GitHub.
+
+You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.

ir_sequence_standard_default/__init__.py

@@ -0,0 +1,6 @@
+# 2019  Vauxoo (<http://www.vauxoo.com/>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from . import models
+from . import wizard
+from . import tests

ir_sequence_standard_default/__manifest__.py

@@ -0,0 +1,23 @@
+# 2019  Vauxoo (<http://www.vauxoo.com/>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+
+{
+    'name': 'IrSequence Standard by Default',
+    'summary': 'Use Standard implementation of ir.sequence instead of NoGap',
+    'version': '12.0.1.0.0',
+    'author': 'Vauxoo, Odoo Community Association (OCA)',
+    'website': 'https://github.com/OCA/server-tools',
+    'maintainers': ['moylop260', 'ebirbe'],
+    'license': 'AGPL-3',
+    'category': 'Tools',
+    'depends': [
+        'base_setup',
+    ],
+    'data': [
+        'views/res_config_settings_views.xml',
+        'wizard/sequence_standard_default_views.xml',
+    ],
+    'installable': True,
+    'application': False,
+}

ir_sequence_standard_default/models/__init__.py

@@ -0,0 +1,4 @@
+# 2019  Vauxoo (<http://www.vauxoo.com/>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from . import res_config_settings

ir_sequence_standard_default/models/res_config_settings.py

@@ -0,0 +1,16 @@
+# 2019  Vauxoo (<http://www.vauxoo.com/>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import api, models
+
+
+class ResConfigSettings(models.TransientModel):
+
+    _inherit = "res.config.settings"
+
+    @api.multi
+    def action_change_all_sequences(self):
+        self.ensure_one()
+        action = self.env.ref(
+            'ir_sequence_standard_default.action_sequence_standard_default')
+        return action.read()[0]

ir_sequence_standard_default/readme/CONTRIBUTORS.rst

@@ -0,0 +1,3 @@
+- Moises López <moylop260@vauxoo.com>
+- Erick Birbe <erick@vauxoo.com>
+

ir_sequence_standard_default/readme/DESCRIPTION.rst

@@ -0,0 +1,52 @@
+Set the implementation to "Standard" in all your current Sequences
+(ir.sequence) and all new sequences are created as "Standard" by default
+instead of "No Gap" implementation.
+
+What's the problem with "No Gap" Sequence Implementations
+=========================================================
+
+"No Gap" is the default value of sequences in Odoo. However, this kind of
+sequences cause more locks and can turn a database slow.
+
+Taking as example an invoice, if you assign an invoice number to one record,
+but it sill not finish the process, this process must end in order to another
+invoice could assign a new number and there was no gaps between the invoice
+numbers. It seems to be good at first sight. But the problem starts when there
+is a chained process.
+
+Imagine that there is one user that executes a process that produces 100
+invoices and these at the same time produces 100 journal entries that also use
+a consecutive (no gap) sequence. And also those invoices are sent to sign with
+and external institution (that could take 2 seconds in giving a response
+because of internet latency or server load), and maybe they made another
+calculations that makes them to take 5 seconds more for each invoice, and all
+this is chained to one single transaction. This means that for 8.5 minutes
+anybody else could confirm invoices, neither journal entries of the involved
+journals.
+
+Now, think there is 20 users that have to execute a similar process. The
+problem turns exponential. If another user comes to make an operation with the
+same jornal it will thrown a concurrency failure.
+
+You can mitigate it if you segment each transaction and don't chain them. It
+means, making commit for each invoice or process. It reduces the
+probability that there is a concurrency error or a lock wait. However, it still
+not solve it completely.
+
+Why to use Sequences with "Standard" Implementation
+===================================================
+
+If you use the standard sequence of PosgreSQL, it doesn't lock because at the
+moment the request is done, the next sequence number it is changed in an
+isolated transaction, and it have not to wait the other transaction to end.
+However, if the transaction produces a rollback, this sequence isn't reverted,
+it means, it's lost. It may be not not serious because when you cancel or
+remove records that number is lost too.
+
+What this module does
+=====================
+
+To eliminate completely that concurrency/slowness problem, this module changes
+all the sequences (ir.sequence) implementation from "No Gap" to "Standard" with
+the awareness that it will skip numbers. In the majority of database models
+and many users projects there is no problem with that jump occurs.

ir_sequence_standard_default/static/description/index.html

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+<body>
+<div class="document" id="irsequence-standard-by-default">
+<h1 class="title">IrSequence Standard by Default</h1>
+
+<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+!! This file is generated by oca-gen-addon-readme !!
+!! changes will be overwritten.                   !!
+!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
+<p><a class="reference external" href="https://odoo-community.org/page/development-status"><img alt="Beta" src="https://img.shields.io/badge/maturity-Beta-yellow.png" /></a> <a class="reference external" href="http://www.gnu.org/licenses/agpl-3.0-standalone.html"><img alt="License: AGPL-3" src="https://img.shields.io/badge/licence-AGPL--3-blue.png" /></a> <a class="reference external" href="https://github.com/OCA/server-tools/tree/12.0/ir_sequence_standard_default"><img alt="OCA/server-tools" src="https://img.shields.io/badge/github-OCA%2Fserver--tools-lightgray.png?logo=github" /></a> <a class="reference external" href="https://translation.odoo-community.org/projects/server-tools-12-0/server-tools-12-0-ir_sequence_standard_default"><img alt="Translate me on Weblate" src="https://img.shields.io/badge/weblate-Translate%20me-F47D42.png" /></a> <a class="reference external" href="https://runbot.odoo-community.org/runbot/149/12.0"><img alt="Try me on Runbot" src="https://img.shields.io/badge/runbot-Try%20me-875A7B.png" /></a></p>
+<p>Set the implementation to “Standard” in all your current Sequences
+(ir.sequence) and all new sequences are created as “Standard” by default
+instead of “No Gap” implementation.</p>
+<div class="section" id="what-s-the-problem-with-no-gap-sequence-implementations">
+<h1>What’s the problem with “No Gap” Sequence Implementations</h1>
+<p>“No Gap” is the default value of sequences in Odoo. However, this kind of
+sequences cause more locks and can turn a database slow.</p>
+<p>Taking as example an invoice, if you assign an invoice number to one record,
+but it sill not finish the process, this process must end in order to another
+invoice could assign a new number and there was no gaps between the invoice
+numbers. It seems to be good at first sight. But the problem starts when there
+is a chained process.</p>
+<p>Imagine that there is one user that executes a process that produces 100
+invoices and these at the same time produces 100 journal entries that also use
+a consecutive (no gap) sequence. And also those invoices are sent to sign with
+and external institution (that could take 2 seconds in giving a response
+because of internet latency or server load), and maybe they made another
+calculations that makes them to take 5 seconds more for each invoice, and all
+this is chained to one single transaction. This means that for 8.5 minutes
+anybody else could confirm invoices, neither journal entries of the involved
+journals.</p>
+<p>Now, think there is 20 users that have to execute a similar process. The
+problem turns exponential. If another user comes to make an operation with the
+same jornal it will thrown a concurrency failure.</p>
+<p>You can mitigate it if you segment each transaction and don’t chain them. It
+means, making commit for each invoice or process. It reduces the
+probability that there is a concurrency error or a lock wait. However, it still
+not solve it completely.</p>
+</div>
+<div class="section" id="why-to-use-sequences-with-standard-implementation">
+<h1>Why to use Sequences with “Standard” Implementation</h1>
+<p>If you use the standard sequence of PosgreSQL, it doesn’t lock because at the
+moment the request is done, the next sequence number it is changed in an
+isolated transaction, and it have not to wait the other transaction to end.
+However, if the transaction produces a rollback, this sequence isn’t reverted,
+it means, it’s lost. It may be not not serious because when you cancel or
+remove records that number is lost too.</p>
+</div>
+<div class="section" id="what-this-module-does">
+<h1>What this module does</h1>
+<p>To eliminate completely that concurrency/slowness problem, this module changes
+all the sequences (ir.sequence) implementation from “No Gap” to “Standard” with
+the awareness that it will skip numbers. In the majority of database models
+and many users projects there is no problem with that jump occurs.</p>
+<p><strong>Table of contents</strong></p>
+</div>
+<div class="section" id="bug-tracker">
+<h1>Bug Tracker</h1>
+<p>Bugs are tracked on <a class="reference external" href="https://github.com/OCA/server-tools/issues">GitHub Issues</a>.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us smashing it by providing a detailed and welcomed
+<a class="reference external" href="https://github.com/OCA/server-tools/issues/new?body=module:%20ir_sequence_standard_default%0Aversion:%2012.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**">feedback</a>.</p>
+<p>Do not contact contributors directly about support or help with technical issues.</p>
+</div>
+<div class="section" id="credits">
+<h1>Credits</h1>
+<div class="section" id="authors">
+<h2>Authors</h2>
+<ul class="simple">
+<li>Vauxoo</li>
+</ul>
+</div>
+<div class="section" id="contributors">
+<h2>Contributors</h2>
+<ul class="simple">
+<li>Moises López &lt;<a class="reference external" href="mailto:moylop260&#64;vauxoo.com">moylop260&#64;vauxoo.com</a>&gt;</li>
+<li>Erick Birbe &lt;<a class="reference external" href="mailto:erick&#64;vauxoo.com">erick&#64;vauxoo.com</a>&gt;</li>
+</ul>
+</div>
+<div class="section" id="maintainers">
+<h2>Maintainers</h2>
+<p>This module is maintained by the OCA.</p>
+<a class="reference external image-reference" href="https://odoo-community.org"><img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" /></a>
+<p>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.</p>
+<p>Current <a class="reference external" href="https://odoo-community.org/page/maintainer-role">maintainers</a>:</p>
+<p><a class="reference external" href="https://github.com/moylop260"><img alt="moylop260" src="https://github.com/moylop260.png?size=40px" /></a> <a class="reference external" href="https://github.com/ebirbe"><img alt="ebirbe" src="https://github.com/ebirbe.png?size=40px" /></a></p>
+<p>This module is part of the <a class="reference external" href="https://github.com/OCA/server-tools/tree/12.0/ir_sequence_standard_default">OCA/server-tools</a> project on GitHub.</p>
+<p>You are welcome to contribute. To learn how please visit <a class="reference external" href="https://odoo-community.org/page/Contribute">https://odoo-community.org/page/Contribute</a>.</p>
+</div>
+</div>
+</div>
+</body>
+</html>

ir_sequence_standard_default/tests/__init__.py

@@ -0,0 +1,5 @@
+# 2019  Vauxoo (<http://www.vauxoo.com/>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from . import test_sequence_standard_default
+

ir_sequence_standard_default/tests/test_sequence_standard_default.py

@@ -0,0 +1,46 @@
+# Copyright 2016 Vauxoo
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo.tests.common import TransactionCase
+
+
+class TestSequenceStandardDefault(TransactionCase):
+
+    def setUp(self):
+
+        super(TestSequenceStandardDefault, self).setUp()
+        self.wizard = self.env['sequence.standard.default'].create({})
+        self.seq_nogap = self.env['ir.sequence'].create({
+            'name': 'NoGap Sequence',
+            'implementation': 'no_gap',
+            'use_date_range': False,
+            'number_next_actual': 100,
+        })
+        self.seq_nogap_range = self.env['ir.sequence'].create({
+            'name': 'NoGap Sequence with Date Range',
+            'implementation': 'no_gap',
+            'use_date_range': True,
+        })
+        self.date_range = self.env['ir.sequence.date_range'].create({
+            'sequence_id': self.seq_nogap_range.id,
+            'date_from': '2019-01-01',
+            'date_to': '2019-12-31',
+            'number_next_actual': 200,
+        })
+        self.seq_standard = self.env['ir.sequence'].create({
+            'name': 'Standard Sequence',
+            'implementation': 'standard',
+            'number_next_actual': 300,
+        })
+
+    def test01_nogap_to_std(self):
+        self.wizard.execute()
+
+        self.assertEqual(self.seq_nogap.implementation, 'standard')
+        self.assertEqual(self.seq_nogap.number_next_actual, 100)
+
+        self.assertEqual(self.seq_nogap_range.implementation, 'standard')
+        self.assertEqual(self.date_range.number_next_actual, 200)
+
+        self.assertEqual(self.seq_standard.implementation, 'standard')
+        self.assertEqual(self.seq_standard.number_next_actual, 300)

ir_sequence_standard_default/views/res_config_settings_views.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="res_config_settings_view_form" model="ir.ui.view">
+        <field name="name">res.config.settings.view.form.inherit.sequence</field>
+        <field name="model">res.config.settings</field>
+        <field name="inherit_id" ref="base_setup.res_config_settings_view_form" />
+        <field name="arch" type="xml">
+            <xpath expr="//div[@name='integration']" position="after">
+                <div id="sequences_general_settings" groups="base.group_no_one">
+                    <h2>Sequences</h2>
+                    <div class="row mt16 o_settings_container">
+                        <div class="col-12 col-lg-6 o_setting_box">
+                            <div class="o_setting_left_pane"/>
+                            <div class="o_setting_right_pane">
+                                <span class="o_form_label">Force Standard</span>
+                                <div class="text-muted">
+                                    Change all your current No Gap sequences to Standard in order to improve performance.
+                                </div>
+                                <div class="mt16">
+                                    <button name="action_change_all_sequences" string="Change all sequences to Standard implementation" type="object" class="oe_link" icon="fa-arrow-right"/>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </xpath>
+        </field>
+    </record>
+
+</odoo>

ir_sequence_standard_default/wizard/__init__.py

@@ -0,0 +1,4 @@
+# 2019  Vauxoo (<http://www.vauxoo.com/>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from . import sequence_standard_default

ir_sequence_standard_default/wizard/sequence_standard_default.py

@@ -0,0 +1,42 @@
+# 2019  Vauxoo (<http://www.vauxoo.com/>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+import logging
+from psycopg2.extensions import AsIs
+
+from odoo import api, models
+
+_logger = logging.getLogger(__name__)
+
+
+class SequenceStandardDefault(models.TransientModel):
+
+    _name = "sequence.standard.default"
+    _description = "Wizard to set all sequences to Standard implementation"
+
+    @api.model
+    def change_all_sequences(self):
+        sequences = self.env['ir.sequence'].sudo().with_context(
+            active_test=False).search([('implementation', '=', 'no_gap')])
+        _logger.info("Changing sequences to Standard: %s", sequences.ids)
+        for item in sequences:
+            seq_name = "ir_sequence_%03d" % (item.id)
+            self._cr.execute("DROP SEQUENCE IF EXISTS %s", [AsIs(seq_name), ])
+            if item.use_date_range:
+                range_ids = {}
+                for line in item.date_range_ids:
+                    range_ids[line.id] = line.number_next_actual
+                    seq_name = "ir_sequence_%03d_%03d" % (item.id, line.id)
+                    self._cr.execute(
+                        "DROP SEQUENCE IF EXISTS %s", [AsIs(seq_name), ])
+                item.write({'implementation': 'standard'})
+                for line in item.date_range_ids:
+                    line.write({'number_next_actual': range_ids[line.id]})
+                continue
+            item.write({'implementation': 'standard'})
+
+    @api.multi
+    def execute(self):
+        self.ensure_one()
+        self.change_all_sequences()
+        return self.env.ref('base.ir_sequence_form').read()[0]

ir_sequence_standard_default/wizard/sequence_standard_default_views.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="view_sequence_standard_default" model="ir.ui.view">
+        <field name="name">Set All Sequences to Standard</field>
+        <field name="model">sequence.standard.default</field>
+        <field name="arch" type="xml">
+            <form>
+                <h2>Warning:</h2>
+                <p>All sequences in the system will be changed to the Standard
+                    implementation of PostgreSQL. It will improve performance,
+                    but sequence numbers may have gaps between each other.</p>
+                <p>What do you want to do?</p>
+                <footer>
+                    <button name="execute" string="Execute" type="object" class="btn-primary"/>
+                    <button special="cancel" string="Cancel" class="btn-secondary"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+
+    <record id="action_sequence_standard_default" model="ir.actions.act_window">
+        <field name="name">Set All Sequences to Standard</field>
+        <field name="type">ir.actions.act_window</field>
+        <field name="res_model">sequence.standard.default</field>
+        <field name="view_type">form</field>
+        <field name="view_mode">form</field>
+        <field name="target">new</field>
+    </record>
+
+</odoo>
+