changeset e1e738419309 in modules/stock_quantity_issue:default
details: 
https://hg.tryton.org/modules/stock_quantity_issue?cmd=changeset&node=e1e738419309
description:
        Add stock_quantity_issue module

        issue9944
        review339291003
diffstat:

 .drone.yml                                  |   56 ++
 .flake8                                     |    2 +
 COPYRIGHT                                   |   14 +
 LICENSE                                     |  674 ++++++++++++++++++++++++++++
 MANIFEST.in                                 |    5 +
 README.rst                                  |    1 +
 __init__.py                                 |   24 +
 doc/conf.py                                 |   61 ++
 doc/design.rst                              |   51 ++
 doc/index.rst                               |   12 +
 doc/usage.rst                               |   12 +
 exceptions.py                               |    7 +
 ir.py                                       |   15 +
 message.xml                                 |   10 +
 product.xml                                 |   13 +
 setup.py                                    |  157 ++++++
 stock.py                                    |  396 ++++++++++++++++
 stock.xml                                   |  124 +++++
 tests/__init__.py                           |    9 +
 tests/scenario_stock_quantity_issue.rst     |  151 ++++++
 tests/test_stock_quantity_issue.py          |   29 +
 tox.ini                                     |   15 +
 tryton.cfg                                  |   13 +
 view/product_list.xml                       |    9 +
 view/quantity_issue_form.xml                |   40 +
 view/quantity_issue_generate_start_form.xml |    8 +
 view/quantity_issue_list.xml                |    8 +
 27 files changed, 1916 insertions(+), 0 deletions(-)

diffs (2025 lines):

diff -r 000000000000 -r e1e738419309 .drone.yml
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/.drone.yml        Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,56 @@
+clone:
+    hg:
+        image: plugins/hg
+        environment:
+            - HG_SHARE_POOL=/root/.cache/hg
+        volumes:
+            - cache:/root/.cache
+
+pipeline:
+    tox:
+        image: ${IMAGE}
+        environment:
+            - CFLAGS=-O0
+            - DB_CACHE=/cache
+            - TOX_TESTENV_PASSENV=CFLAGS DB_CACHE CI_BUILD_NUMBER 
CI_JOB_NUMBER CI_JOB_ID
+            - POSTGRESQL_URI=postgresql://postgres@postgresql:5432/
+        commands:
+            - echo "[extensions]" >> /root/.hgrc
+            - echo "hgext.share =" >> /root/.hgrc
+            - echo "[share]" >> /root/.hgrc
+            - echo "pool = /root/.cache/hg" >> /root/.hgrc
+            - pip install tox
+            - tox -e "${TOXENV}-${DATABASE}"
+        volumes:
+            - cache:/root/.cache
+
+services:
+    postgresql:
+        image: postgres
+        environment:
+            - POSTGRES_HOST_AUTH_METHOD=trust
+        command: "-c fsync=off -c synchronous_commit=off -c 
full_page_writes=off"
+        when:
+            matrix:
+                DATABASE: postgresql
+
+matrix:
+    include:
+        - IMAGE: python:3.6
+          TOXENV: py36
+          DATABASE: sqlite
+        - IMAGE: python:3.6
+          TOXENV: py36
+          DATABASE: postgresql
+        - IMAGE: python:3.7
+          TOXENV: py37
+          DATABASE: sqlite
+        - IMAGE: python:3.7
+          TOXENV: py37
+          DATABASE: postgresql
+        - IMAGE: python:3.8
+          TOXENV: py38
+          DATABASE: sqlite
+        - IMAGE: python:3.8
+          TOXENV: py38
+          DATABASE: postgresql
diff -r 000000000000 -r e1e738419309 .flake8
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/.flake8   Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,2 @@
+[flake8]
+ignore=E123,E124,E126,E128,E741,W503
diff -r 000000000000 -r e1e738419309 COPYRIGHT
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/COPYRIGHT Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,14 @@
+Copyright (C) 2020 Cédric Krier
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
diff -r 000000000000 -r e1e738419309 LICENSE
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/LICENSE   Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
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+  If you convey a covered work, knowingly relying on a patent license,
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+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
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+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
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+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
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+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
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+  16. Limitation of Liability.
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+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
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+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
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+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff -r 000000000000 -r e1e738419309 MANIFEST.in
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/MANIFEST.in       Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,5 @@
+include CHANGELOG
+include COPYRIGHT
+include LICENSE
+include README.rst
+include doc/*
diff -r 000000000000 -r e1e738419309 README.rst
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/README.rst        Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,1 @@
+doc/index.rst
\ No newline at end of file
diff -r 000000000000 -r e1e738419309 __init__.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/__init__.py       Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,24 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from trytond.pool import Pool
+
+__all__ = ['register']
+
+from . import ir
+from . import stock
+
+
+def register():
+    Pool.register(
+        ir.Cron,
+        stock.QuantityIssue,
+        stock.QuantityIssueProduct,
+        stock.QuantityIssueGenerateStart,
+        module='stock_quantity_issue', type_='model')
+    Pool.register(
+        stock.QuantityIssueGenerate,
+        module='stock_quantity_issue', type_='wizard')
+    Pool.register(
+        stock.QuantityIssueProduction,
+        module='stock_quantity_issue', type_='model', depends=['production'])
diff -r 000000000000 -r e1e738419309 doc/conf.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/conf.py       Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,61 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+modules_url = 'https://docs.tryton.org/projects/modules-{module}/en/{series}/'
+trytond_url = 'https://docs.tryton.org/projects/server/en/{series}/'
+
+
+def get_info():
+    import configparser
+    import os
+    import subprocess
+    import sys
+
+    module_dir = os.path.dirname(os.path.dirname(__file__))
+
+    config = configparser.ConfigParser()
+    config.read_file(open(os.path.join(module_dir, 'tryton.cfg')))
+    info = dict(config.items('tryton'))
+
+    result = subprocess.run(
+        [sys.executable, 'setup.py', '--name'],
+        stdout=subprocess.PIPE, check=True, cwd=module_dir)
+    info['name'] = result.stdout.decode('utf-8').strip()
+
+    result = subprocess.run(
+        [sys.executable, 'setup.py', '--version'],
+        stdout=subprocess.PIPE, check=True, cwd=module_dir)
+    version = result.stdout.decode('utf-8').strip()
+    if 'dev' in version:
+        info['series'] = 'latest'
+    else:
+        info['series'] = '.'.join(version.split('.', 2)[:2])
+
+    for key in {'depends', 'extras_depend'}:
+        info[key] = info.get(key, '').strip().splitlines()
+    info['modules'] = set(info['depends'] + info['extras_depend'])
+    info['modules'] -= {'ir', 'res'}
+
+    return info
+
+
+info = get_info()
+
+master_doc = 'index'
+project = info['name']
+release = version = info['series']
+default_role = 'ref'
+highlight_language = 'none'
+extensions = [
+    'sphinx.ext.intersphinx',
+    ]
+intersphinx_mapping = {
+    'trytond': (trytond_url.format(series=version), None),
+    }
+intersphinx_mapping.update({
+        m: (modules_url.format(
+                module=m.replace('_', '-'), series=version), None)
+        for m in info['modules']
+        })
+
+del get_info, info, modules_url, trytond_url
diff -r 000000000000 -r e1e738419309 doc/design.rst
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/design.rst    Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,51 @@
+******
+Design
+******
+
+The *Stock Quantity Issue Module* introduces the following concepts:
+
+.. _model-stock.quantity.issue:
+
+Stock Quantity Issue
+====================
+
+*Quantity Issues* are generated by a `Scheduled Task <trytond:model-ir.cron>`.
+They represent planning issues regarding the quantity of stock available for
+future `Shipments <stock:concept-stock.shipment>` or `Productions
+<production:model-production>`.
+
+A best planned date is calculated for each issue.
+Applying this date updates the shipment's, or production's, planned date.
+The issue also lists the `Products <product:concept-product>` for which there
+is a quantity issue.
+
+The `Employee <company:model-company.employee>` who processes or solves the
+issue is recorded.
+
+.. seealso::
+
+   Quantity Issues can be found by opening the main menu item:
+
+      |Inventory & Stock --> Quantity Issues|__
+
+      .. |Inventory & Stock --> Quantity Issues| replace:: 
:menuselection:`Inventory & Stock --> Quantity Issues`
+      __ https://demo.tryton.org/model/stock.quantity.issue
+
+Wizards
+-------
+
+.. _wizard-stock.quantity.issue.generate:
+
+Generate Stock Quantity Issues
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The *Generate Stock Quantity Issues* wizard creates for each warehouse the
+`Stock Quantity Issues <model-stock.quantity.issue>` if there are any.
+When running it deletes any open issues, updates the processing issues with the
+new products and creates new issues.
+
+.. seealso::
+
+   The wizard can be launched by opening:
+
+      :menuselection:`Inventory & Stock --> Quantity Issues --> Generate Stock 
Quantity Issues`
diff -r 000000000000 -r e1e738419309 doc/index.rst
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/index.rst     Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,12 @@
+###########################
+Stock Quantity Issue Module
+###########################
+
+The *Stock Quantity Issue Module* helps to solve stock quantity issues.
+
+
+.. toctree::
+   :maxdepth: 2
+
+   usage
+   design
diff -r 000000000000 -r e1e738419309 doc/usage.rst
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/usage.rst     Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,12 @@
+*****
+Usage
+*****
+
+.. _Generate stock quantity issues:
+
+Generate stock quantity issues
+==============================
+
+You can define a `Scheduled Action <ir:model-ir.cron>` to generate the `Stock
+Quantity Issues <model-stock.quantity.issue>` periodically like the `Generate
+Stock Quantity Issues <wizard-stock.quantity.issue.generate>` wizard does.
diff -r 000000000000 -r e1e738419309 exceptions.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/exceptions.py     Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,7 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+from trytond.exceptions import UserError
+
+
+class QuantityIssueError(UserError):
+    pass
diff -r 000000000000 -r e1e738419309 ir.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/ir.py     Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,15 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+from trytond.pool import PoolMeta
+
+
+class Cron(metaclass=PoolMeta):
+    __name__ = 'ir.cron'
+
+    @classmethod
+    def __setup__(cls):
+        super().__setup__()
+        cls.method.selection.extend([
+                ('stock.quantity.issue|generate_issues',
+                    "Generate Stock Quantity Issues"),
+                ])
diff -r 000000000000 -r e1e738419309 message.xml
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/message.xml       Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,10 @@
+<?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. -->
+<tryton>
+    <data grouped="1">
+        <record model="ir.message" 
id="msg_issue_solve_product_forecast_quantity">
+            <field name="text">You cannot solve the stock quantity issue 
"%(issue)s" because product "%(product)s" has still a negative forecast.</field>
+        </record>
+    </data>
+</tryton>
diff -r 000000000000 -r e1e738419309 product.xml
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/product.xml       Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,13 @@
+<?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. -->
+<tryton>
+    <data>
+        <record model="ir.ui.view" id="product_view_list">
+            <field name="model">product.product</field>
+            <field name="type">tree</field>
+            <field name="priority" eval="20"/>
+            <field name="name">product_list</field>
+        </record>
+    </data>
+</tryton>
diff -r 000000000000 -r e1e738419309 setup.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/setup.py  Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,157 @@
+#!/usr/bin/env python3
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+import io
+import os
+import re
+from configparser import ConfigParser
+from setuptools import setup, find_packages
+
+
+def read(fname, slice=None):
+    content = io.open(
+        os.path.join(os.path.dirname(__file__), fname),
+        'r', encoding='utf-8').read()
+    if slice:
+        content = '\n'.join(content.splitlines()[slice])
+    return content
+
+
+def get_require_version(name):
+    if minor_version % 2:
+        require = '%s >= %s.%s.dev0, < %s.%s'
+    else:
+        require = '%s >= %s.%s, < %s.%s'
+    require %= (name, major_version, minor_version,
+        major_version, minor_version + 1)
+    return require
+
+
+config = ConfigParser()
+config.read_file(open(os.path.join(os.path.dirname(__file__), 'tryton.cfg')))
+info = dict(config.items('tryton'))
+for key in ('depends', 'extras_depend', 'xml'):
+    if key in info:
+        info[key] = info[key].strip().splitlines()
+version = info.get('version', '0.0.1')
+major_version, minor_version, _ = version.split('.', 2)
+major_version = int(major_version)
+minor_version = int(minor_version)
+name = 'trytond_stock_quantity_issue'
+
+download_url = 'http://downloads.tryton.org/%s.%s/' % (
+    major_version, minor_version)
+if minor_version % 2:
+    version = '%s.%s.dev0' % (major_version, minor_version)
+    download_url = (
+        'hg+http://hg.tryton.org/modules/%s#egg=%s-%s' % (
+            name[8:], name, version))
+local_version = []
+if os.environ.get('CI_JOB_ID'):
+    local_version.append(os.environ['CI_JOB_ID'])
+else:
+    for build in ['CI_BUILD_NUMBER', 'CI_JOB_NUMBER']:
+        if os.environ.get(build):
+            local_version.append(os.environ[build])
+        else:
+            local_version = []
+            break
+if local_version:
+    version += '+' + '.'.join(local_version)
+
+requires = []
+for dep in info.get('depends', []):
+    if not re.match(r'(ir|res)(\W|$)', dep):
+        requires.append(get_require_version('trytond_%s' % dep))
+requires.append(get_require_version('trytond'))
+
+tests_require = [
+    'dateutil',
+    get_require_version('proteus'),
+    get_require_version('trytond_production'),
+    ]
+dependency_links = []
+if minor_version % 2:
+    dependency_links.append(
+        'https://trydevpi.tryton.org/?local_version='
+        + '.'.join(local_version))
+
+setup(name=name,
+    version=version,
+    description='Tryton module to manage quantity issue with stock',
+    long_description=read('README.rst'),
+    author='Tryton',
+    author_email='[email protected]',
+    url='http://www.tryton.org/',
+    download_url=download_url,
+    project_urls={
+        "Bug Tracker": 'https://bugs.tryton.org/',
+        "Documentation": (
+            'https://docs.tryton.org/projects/modules-stock-quantity-issue/'),
+        "Forum": 'https://www.tryton.org/forum',
+        "Source Code": 'https://hg.tryton.org/modules/stock_quantity_issue',
+        },
+    keywords='tryton stock quantity issue shipment production',
+    package_dir={'trytond.modules.stock_quantity_issue': '.'},
+    packages=(
+        ['trytond.modules.stock_quantity_issue']
+        + ['trytond.modules.stock_quantity_issue.%s' % p
+            for p in find_packages()]
+        ),
+    package_data={
+        'trytond.modules.stock_quantity_issue': (info.get('xml', [])
+            + ['tryton.cfg', 'view/*.xml', 'locale/*.po', '*.fodt',
+                'icons/*.svg', 'tests/*.rst']),
+        },
+    classifiers=[
+        'Development Status :: 5 - Production/Stable',
+        'Environment :: Plugins',
+        'Framework :: Tryton',
+        'Intended Audience :: Developers',
+        'Intended Audience :: Financial and Insurance Industry',
+        'Intended Audience :: Legal Industry',
+        'Intended Audience :: Manufacturing',
+        'License :: OSI Approved :: '
+        'GNU General Public License v3 or later (GPLv3+)',
+        'Natural Language :: Bulgarian',
+        'Natural Language :: Catalan',
+        'Natural Language :: Chinese (Simplified)',
+        'Natural Language :: Czech',
+        'Natural Language :: Dutch',
+        'Natural Language :: English',
+        'Natural Language :: Finnish',
+        'Natural Language :: French',
+        'Natural Language :: German',
+        'Natural Language :: Hungarian',
+        'Natural Language :: Indonesian',
+        'Natural Language :: Italian',
+        'Natural Language :: Persian',
+        'Natural Language :: Polish',
+        'Natural Language :: Portuguese (Brazilian)',
+        'Natural Language :: Russian',
+        'Natural Language :: Slovenian',
+        'Natural Language :: Spanish',
+        'Natural Language :: Turkish',
+        'Operating System :: OS Independent',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: Implementation :: CPython',
+        'Programming Language :: Python :: Implementation :: PyPy',
+        'Topic :: Office/Business',
+        ],
+    license='GPL-3',
+    python_requires='>=3.6',
+    install_requires=requires,
+    dependency_links=dependency_links,
+    zip_safe=False,
+    entry_points="""
+    [trytond.modules]
+    stock_quantity_issue = trytond.modules.stock_quantity_issue
+    """,  # noqa: E501
+    test_suite='tests',
+    test_loader='trytond.test_loader:Loader',
+    tests_require=tests_require,
+    )
diff -r 000000000000 -r e1e738419309 stock.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/stock.py  Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,396 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+from collections import defaultdict
+from itertools import groupby
+
+from trytond.i18n import gettext
+from trytond.model import (
+    Model, ModelSQL, ModelView, Workflow, sequence_ordered, fields)
+from trytond.pool import Pool, PoolMeta
+from trytond.pyson import Eval
+from trytond.transaction import Transaction
+from trytond.wizard import Wizard, StateView, StateAction, Button
+
+from trytond.modules.company.model import (
+    set_employee, reset_employee, employee_field)
+
+from .exceptions import QuantityIssueError
+
+
+class QuantityIssue(
+        sequence_ordered('priority', "Priority", "ASC NULLS LAST"),
+        Workflow, ModelSQL, ModelView):
+    "Stock Quantity Issue"
+    __name__ = 'stock.quantity.issue'
+
+    company = fields.Many2One(
+        'company.company', "Company", required=True, select=True)
+    origin = fields.Reference(
+        "Origin", 'get_origins', required=True,
+        domain=[
+            ('company', '=', Eval('company', -1)),
+            ],
+        depends=['company'])
+    planned_date = fields.Function(
+        fields.Date("Planned Date"),
+        'on_change_with_planned_date')
+    best_planned_date = fields.Function(
+        fields.Date("Best Planned Date"),
+        'get_best_planned_date')
+    warehouse = fields.Function(
+        fields.Many2One('stock.location', "Warehouse"),
+        'on_change_with_warehouse')
+
+    issue_products = fields.One2Many(
+        'stock.quantity.issue.product', 'issue', "Issue Products",
+        readonly=True)
+    products = fields.Many2Many(
+        'stock.quantity.issue.product', 'issue', 'product', "Products",
+        readonly=True,
+        context={
+            'company': Eval('company'),
+            'locations': [Eval('warehouse')],
+            'stock_skip_warehouse': False,
+            'stock_date_end': Eval('planned_date'),
+            },
+        depends=['company', 'warehouse', 'planned_date'])
+
+    processed_by = employee_field("Processed by", states=['processing'])
+    solved_by = employee_field("Solved by", states=['solved'])
+
+    state = fields.Selection([
+            ('open', "Open"),
+            ('processing', "Processing"),
+            ('solved', "Solved"),
+            ], "State", required=True, select=True, readonly=True)
+
+    @classmethod
+    def __setup__(cls):
+        super().__setup__()
+        cls.priority.readonly = True
+        cls._transitions |= {
+            ('open', 'processing'),
+            ('processing', 'solved'),
+            ('processing', 'open'),
+            }
+        cls._buttons.update({
+                'open': {
+                    'invisible': Eval('state') != 'processing',
+                    'depends': ['state'],
+                    },
+                'process': {
+                    'invisible': Eval('state') != 'open',
+                    'depends': ['state'],
+                    },
+                'apply_best_planned_date': {
+                    'invisible': Eval('state') != 'processing',
+                    'readonly': ~Eval('best_planned_date'),
+                    'depends': ['state', 'best_planned_date'],
+                    },
+                'solve': {
+                    'invisible': Eval('state') != 'processing',
+                    'depends': ['state'],
+                    },
+                })
+
+    @classmethod
+    def default_company(cls):
+        return Transaction().context.get('company')
+
+    @classmethod
+    def get_origins(cls):
+        pool = Pool()
+        Model = pool.get('ir.model')
+        get_name = Model.get_name
+        models = cls._get_origins()
+        return [(m, get_name(m)) for m in models]
+
+    @classmethod
+    def _get_origins(cls):
+        "Return a list of Model names for origin Reference"
+        return [
+            'stock.shipment.out',
+            'stock.shipment.in.return',
+            'stock.shipment.internal',
+            ]
+
+    @fields.depends('origin')
+    def on_change_with_planned_date(self, name=None):
+        if (isinstance(self.origin, Model)
+                and self.origin.id >= 0
+                and hasattr(self.origin, 'planned_date')):
+            return self.origin.planned_date
+
+    def get_best_planned_date(self, name):
+        return max(
+            (p.best_planned_date for p in self.issue_products
+            if p.best_planned_date), default=None)
+
+    @classmethod
+    def default_warehouse(cls):
+        pool = Pool()
+        Location = pool.get('stock.location')
+        return Location.get_default_warehouse()
+
+    @fields.depends('origin')
+    def on_change_with_warehouse(self, name=None):
+        if (isinstance(self.origin, Model) and self.origin.id >= 0
+                and getattr(self.origin, 'warehouse', None)):
+            return self.origin.warehouse.id
+
+    @classmethod
+    def default_state(cls):
+        return 'open'
+
+    def get_rec_name(self, name):
+        return (self.origin.rec_name if isinstance(self.origin, Model)
+            else '(%s)' % self.id)
+
+    @classmethod
+    @ModelView.button
+    @Workflow.transition('open')
+    @reset_employee('processed_by')
+    def open(cls, issues):
+        pass
+
+    @classmethod
+    @ModelView.button
+    @Workflow.transition('processing')
+    @set_employee('processed_by')
+    def process(cls, issues):
+        pass
+
+    @classmethod
+    @ModelView.button
+    def apply_best_planned_date(cls, issues):
+        origins = defaultdict(list)
+        for issue in issues:
+            origin = issue.origin
+            if hasattr(origin, 'planned_date'):
+                origins[origin.__class__].append(origin)
+                origin.planned_date = issue.best_planned_date
+        for klass, records in origins.items():
+            klass.save(records)
+
+    @classmethod
+    @ModelView.button
+    @Workflow.transition('solved')
+    @set_employee('solved_by')
+    def solve(cls, issues):
+        for issue in issues:
+            for product in issue.products:
+                if product.forecast_quantity < 0:
+                    raise QuantityIssueError(
+                        gettext('stock_quantity_issue.'
+                            'msg_issue_solve_product_forecast_quantity',
+                            issue=issue.rec_name,
+                            product=product.rec_name))
+
+    @classmethod
+    def generate_issues(cls, warehouses=None, company=None):
+        """
+        For each product check each stock forecast quantity and for each
+        negative day, it creates an issue for each origin on that day.
+
+        If warehouses is specified it checks the stock only for them.
+        """
+        pool = Pool()
+        Company = pool.get('company.company')
+        Date = pool.get('ir.date')
+        Location = pool.get('stock.location')
+        Move = pool.get('stock.move')
+        Product = pool.get('product.product')
+        ProductQuantitiesByWarehouse = pool.get(
+            'stock.product_quantities_warehouse')
+
+        transaction = Transaction()
+        today = Date.today()
+        if warehouses is None:
+            warehouses = Location.search([
+                    ('type', '=', 'warehouse'),
+                    ])
+        if company is None:
+            company = Company(transaction.context.get('company'))
+
+        # Do not keep former open issues as they may no more be valid
+        opens = cls.search([
+                ('company', '=', company.id),
+                ('state', '=', 'open'),
+                ])
+        opens = [i for i in opens if i.warehouse in warehouses]
+        cls.delete(opens)
+
+        issues = {}
+        for issue in cls.search([
+                    ('company', '=', company.id),
+                    ('state', '=', 'processing'),
+                    ]):
+            if issue.warehouse not in warehouses:
+                continue
+            # Remove products from processing issues
+            # as they may no more be valid
+            issue.issue_products = []
+            issues[issue.origin] = issue
+
+        # Order by id to speedup reduce_ids
+        products = Product.search([
+                ('type', 'in', ['goods', 'assets']),
+                ('consumable', '=', False),
+                ],
+            order=[('id', 'ASC')])
+
+        for product in products:
+            for warehouse in warehouses:
+                with transaction.set_context(
+                        product=product.id,
+                        warehouse=warehouse.id,
+                        stock_skip_warehouse=False,
+                        ):
+                    product_quantities = ProductQuantitiesByWarehouse.search([
+                            ('date', '>=', today),
+                            ('company', '=', company.id),
+                            ])
+                issue_products = []
+                for product_quantity in product_quantities:
+                    if product_quantity.quantity < 0:
+                        moves = Move.search([
+                                ('planned_date', '=', product_quantity.date),
+                                ('from_location', 'child_of',
+                                    [warehouse.id], 'parent'),
+                                ('to_location', 'not child_of',
+                                    [warehouse.id], 'parent'),
+                                ('company', '=', company.id),
+                                ])
+                        for move in moves:
+                            issue_products.append(cls._add(move, issues))
+                    else:
+                        for issue_product in issue_products:
+                            issue_product.best_planned_date = (
+                                product_quantity.date)
+                        issue_products.clear()
+        cls.save(issues.values())
+
+    @classmethod
+    def _get_origin(cls, move):
+        if move.shipment and move.shipment.__name__ in cls._get_origins():
+            return move.shipment
+
+    @classmethod
+    def _add(cls, move, issues):
+        pool = Pool()
+        Date = pool.get('ir.date')
+        IssueProduct = pool.get('stock.quantity.issue.product')
+
+        origin = cls._get_origin(move)
+
+        if origin in issues:
+            issue = issues[origin]
+        else:
+            issue = issues[origin] = cls(
+                company=origin.company,
+                origin=origin)
+        issue_products = list(getattr(issue, 'issue_products', []))
+        issue_product = IssueProduct.get_from_move(move)
+        issue_products.append(issue_product)
+        issue.issue_products = issue_products
+        planned_date = issue.on_change_with_planned_date()
+        if planned_date:
+            issue.priority = (planned_date - Date.today()).days
+        else:
+            issue.priority = None
+        return issue_product
+
+
+class QuantityIssueProduction(metaclass=PoolMeta):
+    __name__ = 'stock.quantity.issue'
+
+    @classmethod
+    def _get_origins(cls):
+        return super()._get_origins() + ['production']
+
+    @classmethod
+    def _get_origin(cls, move):
+        origin = super()._get_origin(move)
+        if not origin:
+            origin = move.production_input
+        return origin
+
+
+class QuantityIssueProduct(ModelSQL):
+    "Stock Quantity Issue Product"
+    __name__ = 'stock.quantity.issue.product'
+
+    issue = fields.Many2One(
+        'stock.quantity.issue', "Issue",
+        required=True, select=True, ondelete='CASCADE')
+    product = fields.Many2One(
+        'product.product', "Product",
+        required=True, ondelete='CASCADE',
+        domain=[
+            ('type', '!=', 'service'),
+            ])
+    best_planned_date = fields.Date("Best Planned Date")
+    forecast_quantity = fields.Function(
+        fields.Float(
+            "Forecast Quantity",
+            help="The amount of stock expected to be in the warehouse."),
+        'get_forecast_quantity')
+
+    @classmethod
+    def get_forecast_quantity(cls, records):
+        quantities = {}
+
+        def key(record):
+            return record.warehouse, record.issue.planned_date
+        items = cls.browse(sorted(records, key=key))
+        for (warehouse, date), items in groupby(items, key=key):
+            with Transaction().set_context(
+                    location=[warehouse.id],
+                    stock_skip_warehouse=True,
+                    stock_start_end=date):
+                for item in cls.browse(items):
+                    quantities[item.id] = item.product.forecast_quantity
+        return quantities
+
+    def get_rec_name(self, name):
+        return self.product.rec_name
+
+    @classmethod
+    def get_from_move(cls, move):
+        return cls(product=move.product)
+
+
+class QuantityIssueGenerate(Wizard):
+    "Stock Quantity Issue Generate"
+    __name__ = 'stock.quantity.issue.generate'
+    start = StateView(
+        'stock.quantity.issue.generate.start',
+        'stock_quantity_issue.quantity_issue_generate_start_view_form', [
+            Button("Cancel", 'end', 'tryton-cancel'),
+            Button("Generate", 'generate', 'tryton-ok', default=True),
+            ])
+    generate = StateAction('stock_quantity_issue.act_quantity_issue_form')
+
+    def transition_generate(self):
+        pool = Pool()
+        QuantityIssue = pool.get('stock.quantity.issue')
+        QuantityIssue.generate_issues(warehouses=self.start.warehouses)
+        return 'end'
+
+
+class QuantityIssueGenerateStart(ModelView):
+    "Stock Quantity Issue Generate"
+    __name__ = 'stock.quantity.issue.generate.start'
+    warehouses = fields.Many2Many(
+        'stock.location', None, None, "Warehouses",
+        domain=[
+            ('type', '=', 'warehouse'),
+            ])
+
+    @classmethod
+    def default_warehouses(cls):
+        pool = Pool()
+        Location = pool.get('stock.location')
+        warehouse = Location.get_default_warehouse()
+        if warehouse:
+            return [warehouse]
diff -r 000000000000 -r e1e738419309 stock.xml
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/stock.xml Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,124 @@
+<?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. -->
+<tryton>
+    <data>
+        <record model="ir.ui.view" id="quantity_issue_view_form">
+            <field name="model">stock.quantity.issue</field>
+            <field name="type">form</field>
+            <field name="name">quantity_issue_form</field>
+        </record>
+
+        <record model="ir.ui.view" id="quantity_issue_view_list">
+            <field name="model">stock.quantity.issue</field>
+            <field name="type">tree</field>
+            <field name="name">quantity_issue_list</field>
+        </record>
+
+        <record model="ir.action.act_window" id="act_quantity_issue_form">
+            <field name="name">Quantity Issues</field>
+            <field name="res_model">stock.quantity.issue</field>
+        </record>
+        <record model="ir.action.act_window.view" 
id="act_quantity_issue_form_view1">
+            <field name="sequence" eval="10"/>
+            <field name="view" ref="quantity_issue_view_list"/>
+            <field name="act_window" ref="act_quantity_issue_form"/>
+        </record>
+        <record model="ir.action.act_window.view" 
id="act_quantity_issue_form_view2">
+            <field name="sequence" eval="20"/>
+            <field name="view" ref="quantity_issue_view_form"/>
+            <field name="act_window" ref="act_quantity_issue_form"/>
+        </record>
+        <record model="ir.action.act_window.domain" 
id="act_quantity_issue_form_domain_open">
+            <field name="name">Open</field>
+            <field name="sequence" eval="10"/>
+            <field name="domain" eval="[('state', '=', 'open')]" pyson="1"/>
+            <field name="count" eval="True"/>
+            <field name="act_window" ref="act_quantity_issue_form"/>
+        </record>
+        <record model="ir.action.act_window.domain" 
id="act_quantity_issue_form_domain_processing">
+            <field name="name">Processing</field>
+            <field name="sequence" eval="20"/>
+            <field name="domain" eval="[('state', '=', 'processing')]" 
pyson="1"/>
+            <field name="count" eval="True"/>
+            <field name="act_window" ref="act_quantity_issue_form"/>
+        </record>
+        <record model="ir.action.act_window.domain" 
id="act_quantity_issue_form_domain_all">
+            <field name="name">All</field>
+            <field name="sequence" eval="9999"/>
+            <field name="domain"></field>
+            <field name="act_window" ref="act_quantity_issue_form"/>
+        </record>
+
+        <menuitem
+            parent="stock.menu_stock"
+            action="act_quantity_issue_form"
+            sequence="50"
+            id="menu_quantity_issue_form"/>
+
+        <record model="ir.model.access" id="access_quantity_issue">
+            <field name="model" search="[('model', '=', 
'stock.quantity.issue')]"/>
+            <field name="perm_read" eval="False"/>
+            <field name="perm_write" eval="False"/>
+            <field name="perm_create" eval="False"/>
+            <field name="perm_delete" eval="False"/>
+        </record>
+        <record model="ir.model.access" id="access_quantity_issue_group_stock">
+            <field name="model" search="[('model', '=', 
'stock.quantity.issue')]"/>
+            <field name="group" ref="stock.group_stock"/>
+            <field name="perm_read" eval="True"/>
+            <field name="perm_write" eval="True"/>
+            <field name="perm_create" eval="True"/>
+            <field name="perm_delete" eval="True"/>
+        </record>
+
+        <record model="ir.model.button" id="quantity_issue_open_button">
+            <field name="name">open</field>
+            <field name="string">Reset to Open</field>
+            <field name="model" search="[('model', '=', 
'stock.quantity.issue')]"/>
+        </record>
+
+        <record model="ir.model.button" id="quantity_issue_process_button">
+            <field name="name">process</field>
+            <field name="string">Process</field>
+            <field name="model" search="[('model', '=', 
'stock.quantity.issue')]"/>
+        </record>
+
+        <record model="ir.model.button" 
id="quantity_issue_apply_best_planned_date_button">
+            <field name="name">apply_best_planned_date</field>
+            <field name="string">Apply Best Planned Date</field>
+            <field name="model" search="[('model', '=', 
'stock.quantity.issue')]"/>
+        </record>
+
+        <record model="ir.model.button" id="quantity_issue_solve_button">
+            <field name="name">solve</field>
+            <field name="string">Solve</field>
+            <field name="model" search="[('model', '=', 
'stock.quantity.issue')]"/>
+        </record>
+
+        <record model="ir.action.wizard" id="act_quantity_issue_generate">
+            <field name="name">Generate Stock Quantity Issues</field>
+            <field name="wiz_name">stock.quantity.issue.generate</field>
+        </record>
+        <record model="ir.action-res.group" 
id="act_quantity_issue_generate_group_stock_admin">
+            <field name="action" ref="act_quantity_issue_generate"/>
+            <field name="group" ref="stock.group_stock_admin"/>
+        </record>
+
+        <menuitem
+            parent="stock.menu_stock"
+            action="act_quantity_issue_generate"
+            sequence="90"
+            id="menu_quantity_issue_generate"/>
+        <record model="ir.ui.menu-res.group" 
id="menu_quantity_issue_generate_group_stock_admin">
+            <field name="menu" ref="menu_quantity_issue_generate"/>
+            <field name="group" ref="stock.group_stock_admin"/>
+        </record>
+
+        <record model="ir.ui.view" 
id="quantity_issue_generate_start_view_form">
+            <field name="model">stock.quantity.issue.generate.start</field>
+            <field name="type">form</field>
+            <field name="name">quantity_issue_generate_start_form</field>
+        </record>
+    </data>
+</tryton>
diff -r 000000000000 -r e1e738419309 tests/__init__.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/__init__.py Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,9 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+try:
+    from trytond.modules.stock_quantity_issue.tests.test_stock_quantity_issue 
import suite  # noqa: E501
+except ImportError:
+    from .test_stock_quantity_issue import suite
+
+__all__ = ['suite']
diff -r 000000000000 -r e1e738419309 tests/scenario_stock_quantity_issue.rst
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/scenario_stock_quantity_issue.rst   Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,151 @@
+=============================
+Stock Quantity Issue Scenario
+=============================
+
+Imports::
+
+    >>> from decimal import Decimal
+
+    >>> import datetime as dt
+    >>> from dateutil.relativedelta import relativedelta
+
+    >>> from proteus import Model, Wizard
+    >>> from trytond.tests.tools import activate_modules
+    >>> from trytond.modules.company.tests.tools import (
+    ...     create_company, get_company)
+
+    >>> today = dt.date.today()
+    >>> week1 = today + relativedelta(weeks=1)
+    >>> week2 = today + relativedelta(weeks=2)
+    >>> week3 = today + relativedelta(weeks=3)
+
+Activate modules::
+
+    >>> config = activate_modules('stock_quantity_issue')
+
+    >>> Company = Model.get('company.company')
+    >>> Cron = Model.get('ir.cron')
+    >>> Location = Model.get('stock.location')
+    >>> Move = Model.get('stock.move')
+    >>> Party = Model.get('party.party')
+    >>> ProductTemplate = Model.get('product.template')
+    >>> ProductUom = Model.get('product.uom')
+    >>> QuantityIssue = Model.get('stock.quantity.issue')
+    >>> ShipmentOut = Model.get('stock.shipment.out')
+
+Create company::
+
+    >>> _ = create_company()
+    >>> company = get_company()
+
+Create parties::
+
+    >>> customer = Party(name="Customer")
+    >>> customer.save()
+
+Create product::
+
+    >>> unit, = ProductUom.find([('name', '=', 'Unit')])
+    >>> template = ProductTemplate()
+    >>> template.name = "Product"
+    >>> template.default_uom = unit
+    >>> template.type = 'goods'
+    >>> template.list_price = Decimal('20')
+    >>> template.save()
+    >>> product, = template.products
+
+Get stock locations::
+
+    >>> supplier_loc, = Location.find([('code', '=', 'SUP')])
+    >>> customer_loc, = Location.find([('code', '=', 'CUS')])
+    >>> input_loc, = Location.find([('code', '=', 'IN')])
+    >>> output_loc, = Location.find([('code', '=', 'OUT')])
+
+Plan receiving some products tomorrow and in 2 week::
+
+    >>> move = Move()
+    >>> move.product = product
+    >>> move.quantity = 6
+    >>> move.from_location = supplier_loc
+    >>> move.to_location = input_loc
+    >>> move.unit_price = Decimal('5')
+    >>> move.planned_date = today
+    >>> move.save()
+
+    >>> move, = Move.duplicate(
+    ...     [move], default={
+    ...         'quantity': 14,
+    ...         'planned_date': week2,
+    ...         })
+
+Plan to ship some products in 1 week::
+
+    >>> shipment_out1 = ShipmentOut()
+    >>> shipment_out1.planned_date = week1
+    >>> shipment_out1.customer = customer
+    >>> move = shipment_out1.outgoing_moves.new()
+    >>> move.product = product
+    >>> move.quantity = 6
+    >>> move.from_location = output_loc
+    >>> move.to_location = customer_loc
+    >>> move.unit_price = Decimal('20')
+    >>> shipment_out1.save()
+
+    >>> shipment_out2, = ShipmentOut.duplicate([shipment_out1])
+    >>> shipment_out3, = ShipmentOut.duplicate(
+    ...     [shipment_out1], default={'planned_date': week3})
+
+    >>> ShipmentOut.click(
+    ...     [shipment_out1, shipment_out2, shipment_out3], 'wait')
+
+Generate quantity issues::
+
+    >>> cron_generate_issues = 
Cron(method='stock.quantity.issue|generate_issues')
+    >>> cron_generate_issues.interval_number = 1
+    >>> cron_generate_issues.interval_type = 'days'
+    >>> cron_generate_issues.click('run_once')
+
+Check quantity issues::
+
+    >>> issues = QuantityIssue.find([('state', '=', 'open')])
+    >>> len(issues)
+    2
+    >>> issue1, = [i for i in issues if i.origin == shipment_out1]
+    >>> issue2, = [i for i in issues if i.origin == shipment_out2]
+
+    >>> issue1.priority
+    7
+    >>> issue2.priority
+    7
+
+    >>> product, = issue1.products
+    >>> product.quantity, product.forecast_quantity
+    (0.0, -6.0)
+
+    >>> issue1.best_planned_date == week2
+    True
+
+Apply best planned date to first shipment::
+
+    >>> issue1.click('process')
+    >>> issue1.click('solve')  #doctest: +IGNORE_EXCEPTION_DETAIL
+    Traceback (most recent call last):
+        ...
+    QuantityIssueError: ...
+
+    >>> issue1.click('apply_best_planned_date')
+    >>> issue1.click('solve')
+
+Second shipment does not need to be updated::
+
+    >>> product, = issue2.products
+    >>> product.quantity, product.forecast_quantity
+    (0.0, 0.0)
+
+Regenerate quantity issues::
+
+    >>> cron_generate_issues.click('run_once')
+
+    >>> issues = QuantityIssue.find([('state', '=', 'open')])
+    >>> len(issues)
+    0
diff -r 000000000000 -r e1e738419309 tests/test_stock_quantity_issue.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test_stock_quantity_issue.py        Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,29 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+import unittest
+
+import doctest
+
+from trytond.tests.test_tryton import ModuleTestCase
+from trytond.tests.test_tryton import suite as test_suite
+from trytond.tests.test_tryton import doctest_teardown
+from trytond.tests.test_tryton import doctest_checker
+
+
+class StockQuantityIssueTestCase(ModuleTestCase):
+    'Test Stock Quantity Issue module'
+    module = 'stock_quantity_issue'
+    extras = ['production']
+
+
+def suite():
+    suite = test_suite()
+    suite.addTests(unittest.TestLoader().loadTestsFromTestCase(
+            StockQuantityIssueTestCase))
+    suite.addTests(doctest.DocFileSuite(
+            'scenario_stock_quantity_issue.rst',
+            tearDown=doctest_teardown, encoding='utf-8',
+            checker=doctest_checker,
+            optionflags=doctest.REPORT_ONLY_FIRST_FAILURE))
+    return suite
diff -r 000000000000 -r e1e738419309 tox.ini
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tox.ini   Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,15 @@
+[tox]
+envlist = {py36,py37,py38}-{sqlite,postgresql},pypy3-{sqlite,postgresql}
+
+[testenv]
+commands = {envpython} setup.py test
+deps =
+    {py36,py37,py38}-postgresql: psycopg2 >= 2.5
+    pypy3-postgresql: psycopg2cffi >= 2.5
+    py36-sqlite: sqlitebck
+setenv =
+    sqlite: TRYTOND_DATABASE_URI={env:SQLITE_URI:sqlite://}
+    postgresql: TRYTOND_DATABASE_URI={env:POSTGRESQL_URI:postgresql://}
+    sqlite: DB_NAME={env:SQLITE_NAME::memory:}
+    postgresql: DB_NAME={env:POSTGRESQL_NAME:test}
+install_command = pip install --pre --find-links 
https://trydevpi.tryton.org/?local_version={env:CI_JOB_ID:{env:CI_BUILD_NUMBER}.{env:CI_JOB_NUMBER}}
 {opts} {packages}
diff -r 000000000000 -r e1e738419309 tryton.cfg
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tryton.cfg        Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,13 @@
+[tryton]
+version=5.9.0
+depends:
+    company
+    ir
+    product
+    stock
+extras_depend:
+    production
+xml:
+    product.xml
+    stock.xml
+    message.xml
diff -r 000000000000 -r e1e738419309 view/product_list.xml
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/view/product_list.xml     Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,9 @@
+<?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>
+    <field name="code"/>
+    <field name="name"/>
+    <field name="quantity" symbol="default_uom"/>
+    <field name="forecast_quantity" symbol="default_uom"/>
+</tree>
diff -r 000000000000 -r e1e738419309 view/quantity_issue_form.xml
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/view/quantity_issue_form.xml      Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,40 @@
+<?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. -->
+<form cursor="origin">
+    <label name="warehouse"/>
+    <field name="warehouse"/>
+    <label name="company"/>
+    <field name="company"/>
+
+    <label name="origin"/>
+    <field name="origin" colspan="3"/>
+
+    <label name="planned_date"/>
+    <field name="planned_date"/>
+    <label name="best_planned_date"/>
+    <group col="-1" id="best_planned_date">
+        <field name="best_planned_date"/>
+        <button name="apply_best_planned_date" icon="tryton-save" 
string="Apply"/>
+    </group>
+
+    <notebook colspan="4">
+        <page name="products">
+            <field name="products" colspan="4" 
view_ids="stock_quantity_issue.product_view_list"/>
+        </page>
+        <page string="Other Info" id="other">
+            <label name="processed_by"/>
+            <field name="processed_by"/>
+            <label name="solved_by"/>
+            <field name="solved_by"/>
+        </page>
+    </notebook>
+
+    <label name="state"/>
+    <field name="state"/>
+    <group col="-1" colspan="2" id="buttons">
+        <button name="open" icon="tryton-back"/>
+        <button name="process" icon="tryton-forward"/>
+        <button name="solve" icon="tryton-close"/>
+    </group>
+</form>
diff -r 000000000000 -r e1e738419309 view/quantity_issue_generate_start_form.xml
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/view/quantity_issue_generate_start_form.xml       Sun Mar 21 12:52:58 
2021 +0100
@@ -0,0 +1,8 @@
+<?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. -->
+<form col="2">
+    <image name="tryton-question" xexpand="0" xfill="0"/>
+    <label string="Generate Stock Quantity Issues?" id="quantity_issue" 
yalign="0.0" xalign="0.0" xexpand="1"/>
+    <field name="warehouses" colspan="2"/>
+</form>
diff -r 000000000000 -r e1e738419309 view/quantity_issue_list.xml
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/view/quantity_issue_list.xml      Sun Mar 21 12:52:58 2021 +0100
@@ -0,0 +1,8 @@
+<?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>
+    <field name="origin" expand="1"/>
+    <field name="planned_date"/>
+    <field name="state"/>
+</tree>

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