[MIG] base_exception: Migration to 12.0

base_exception/README.rst

@@ -1,11 +1,30 @@
-.. image:: https://img.shields.io/badge/licence-AGPL--3-blue.svg
-   :target: https://www.gnu.org/licenses/agpl-3.0-standalone.html
-   :alt: License: AGPL-3
-
 ==============
-Base Exception
+Exception Rule
 ==============
 
+.. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! 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/base_exception
+    :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-base_exception
+    :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| 
+
 This module provide an abstract model to manage customizable
 exceptions to be applied on different models (sale order, invoice, ...).
 
@@ -13,34 +32,38 @@ It is not useful for itself. You can see an example of implementation
 in the 'sale_exception' module. (sale-workflow repository) or
 'purchase_exception' module (purchase-workflow repository).
 
-Usage
-=====
+**Table of contents**
 
-.. image:: https://odoo-community.org/website/image/ir.attachment/5784_f2813bd/datas
-   :alt: Try me on Runbot
-   :target: https://runbot.odoo-community.org/runbot/149/11.0
+.. contents::
+   :local:
 
+Known issues / Roadmap
+======================
+
+Terms used in old api like `pool`, `cr`, `uid` must be removed porting this module in version 12.
 
 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 smash it by providing detailed and welcomed feedback.
+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:%20base_exception%0Aversion:%2012.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
 
-Roadmap
--------
-Terms used in old api like `pool`, `cr`, `uid` must be removed porting this module in version 12.
+Do not contact contributors directly about support or help with technical issues.
 
+Credits
+=======
 
-Images
-------
+Authors
+~~~~~~~
 
-* Odoo Community Association: `Icon <https://github.com/OCA/maintainer-tools/blob/master/template/module/static/description/icon.svg>`_.
+* Akretion
+* Sodexis
+* Camptocamp
 
 Contributors
-------------
+~~~~~~~~~~~~
 
 * Raphaël Valyi <raphael.valyi@akretion.com>
 * Renato Lima <renato.lima@akretion.com>
@@ -49,18 +72,21 @@ Contributors
 * Yannick Vaucher <yannick.vaucher@camptocamp.com>
 * SodexisTeam <dev@sodexis.com>
 * Mourad EL HADJ MIMOUNE <mourad.elhadj.mimoune@akretion.com>
+* Iván Todorovich <ivan.todorovich@gmail.com>
+
+Maintainers
+~~~~~~~~~~~
 
-Maintainer
-----------
+This module is maintained by the OCA.
 
 .. 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.
+This module is part of the `OCA/server-tools <https://github.com/OCA/server-tools/tree/12.0/base_exception>`_ project on GitHub.
+
+You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.

base_exception/__init__.py

@@ -1,2 +1 @@
-
 from . import wizard, models

base_exception/__manifest__.py

@@ -2,18 +2,19 @@
 # Copyright 2017 Akretion (http://www.akretion.com)
 # Mourad EL HADJ MIMOUNE <mourad.elhadj.mimoune@akretion.com>
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
-
 {
     'name': 'Exception Rule',
-    'version': '11.0.1.1.0',
+    'version': '12.0.1.0.0',
     'category': 'Generic Modules',
     'summary': """
     This module provide an abstract model to manage customizable
     exceptions to be applied on different models (sale order, invoice, ...)""",
     'author':
         "Akretion, Sodexis, Camptocamp, Odoo Community Association (OCA)",
-    'website': 'http://www.akretion.com',
-    'depends': ['base_setup'],
+    'website': 'https://github.com/OCA/server-tools',
+    'depends': [
+        'base_setup',
+    ],
     'license': 'AGPL-3',
     'data': [
         'security/base_exception_security.xml',

base_exception/models/base_exception.py

@@ -6,13 +6,9 @@
 import time
 from functools import wraps
 from odoo import api, fields, models, _
-import logging
-
 from odoo.exceptions import UserError, ValidationError
 from odoo.tools.safe_eval import safe_eval
 
-_logger = logging.getLogger(__name__)
-
 
 def implemented_by_base_exception(func):
     """Call a prefixed function based on 'namespace'."""
@@ -28,50 +24,36 @@ def implemented_by_base_exception(func):
 
 class ExceptionRule(models.Model):
     _name = 'exception.rule'
-    _description = "Exception Rules"
+    _description = 'Exception Rule'
     _order = 'active desc, sequence asc'
 
     name = fields.Char('Exception Name', required=True, translate=True)
     description = fields.Text('Description', translate=True)
     sequence = fields.Integer(
         string='Sequence',
-        help="Gives the sequence order when applying the test")
+        help="Gives the sequence order when applying the test",
+    )
     rule_group = fields.Selection(
         selection=[],
         help="Rule group is used to group the rules that must validated "
         "at same time for a target object. Ex: "
         "validate sale.order.line rules with sale order rules.",
-        required=True)
-    model = fields.Selection(
-        selection=[],
-        string='Apply on', required=True)
+        required=True,
+    )
+    model = fields.Selection(selection=[], string='Apply on', required=True)
     active = fields.Boolean('Active')
     next_state = fields.Char(
         'Next state',
         help="If we detect exception we set the state of object (ex purchase) "
              "to the next_state (ex 'to approve'). If there are more than one "
              "exception detected and all have a value for next_state, we use"
-             "the exception having the smallest sequence value")
+             "the exception having the smallest sequence value",
+    )
     code = fields.Text(
         'Python Code',
         help="Python code executed to check if the exception apply or "
              "not. Use failed = True to block the exception",
-        default="""
-# Python code. Use failed = True to block the base.exception.
-# You can use the following variables :
-#  - self: ORM model of the record which is checked
-#  - "rule_group" or "rule_group_"line:
-#       browse_record of the base.exception or
-#       base.exception line (ex rule_group = sale for sale order)
-#  - object: same as order or line, browse_record of the base.exception or
-#    base.exception line
-#  - obj: same as object
-#  - env: Odoo Environment (i.e. self.env)
-#  - time: Python time module
-#  - cr: database cursor
-#  - uid: current user id
-#  - context: current context
-""")
+        )
 
     @api.constrains('next_state')
     def _check_next_state_value(self):
@@ -84,60 +66,55 @@ class ExceptionRule(models.Model):
                         'state']['selection']
                 select_vals_code = [s[0] for s in select_vals]
                 if rule.next_state not in select_vals_code:
-                    raise ValidationError(
-                        _('The value "%s" you choose for the "next state" '
+                    raise ValidationError(_(
+                        'The value "%s" you choose for the "next state" '
                         'field state of "%s" is wrong.'
-                          ' Value must be in this list %s')
-                        % (rule.next_state,
+                        ' Value must be in this list %s'
+                        ) % (
+                            rule.next_state,
                             rule.model,
-                           select_vals)
-                    )
+                            select_vals
+                        ))
 
 
 class BaseException(models.AbstractModel):
     _name = 'base.exception'
-
     _order = 'main_exception_id asc'
+    _description = 'Exception'
 
     main_exception_id = fields.Many2one(
         'exception.rule',
         compute='_compute_main_error',
         string='Main Exception',
-        store=True)
-    rule_group = fields.Selection(
-        [],
-        readonly=True,
+        store=True,
     )
-    exception_ids = fields.Many2many(
-        'exception.rule',
-        string='Exceptions')
+    rule_group = fields.Selection([], readonly=True)
+    exception_ids = fields.Many2many('exception.rule', string='Exceptions')
     ignore_exception = fields.Boolean('Ignore Exceptions', copy=False)
 
     @api.depends('exception_ids', 'ignore_exception')
     def _compute_main_error(self):
-        for obj in self:
-            if not obj.ignore_exception and obj.exception_ids:
-                obj.main_exception_id = obj.exception_ids[0]
+        for rec in self:
+            if not rec.ignore_exception and rec.exception_ids:
+                rec.main_exception_id = rec.exception_ids[0]
             else:
-                obj.main_exception_id = False
+                rec.main_exception_id = False
 
     @api.multi
     def _popup_exceptions(self):
-        action = self._get_popup_action()
-        action_data = action.read()[0]
-        action_data.update({
+        action = self._get_popup_action().read()[0]
+        action.update({
             'context': {
                 'active_id': self.ids[0],
                 'active_ids': self.ids,
                 'active_model': self._name,
             }
         })
-        return action_data
+        return action
 
     @api.model
     def _get_popup_action(self):
-        action = self.env.ref('base_exception.action_exception_rule_confirm')
-        return action
+        return self.env.ref('base_exception.action_exception_rule_confirm')
 
     @api.multi
     def _check_exception(self):
@@ -191,36 +168,32 @@ class BaseException(models.AbstractModel):
 
     @api.model
     def _exception_rule_eval_context(self, obj_name, rec):
-        return {obj_name: rec,
-                'self': self.env[rec._name],
+        return {
+            'time': time,
+            'self': rec,
+            # obj_name, object, obj: deprecated.
+            # should be removed in future migrations
+            obj_name: rec,
             'object': rec,
             'obj': rec,
-                'env': self.env,
-                'cr': self.env.cr,
-                'uid': self.env.uid,
-                'user': self.env.user,
-                'time': time,
             # copy context to prevent side-effects of eval
-                'context': self.env.context.copy()}
+            # should be deprecated too, accesible through self.
+            'context': self.env.context.copy()
+        }
 
     @api.model
     def _rule_eval(self, rule, obj_name, rec):
-        expr = rule.code
-        space = self._exception_rule_eval_context(obj_name, rec)
+        eval_ctx = self._exception_rule_eval_context(obj_name, rec)
         try:
-            safe_eval(expr,
-                      space,
-                      mode='exec',
-                      nocopy=True)  # nocopy allows to return 'result'
+            safe_eval(rule.code, eval_ctx, mode='exec', nocopy=True)
         except Exception as e:
-            raise UserError(
-                _('Error when evaluating the exception.rule '
-                  'rule:\n %s \n(%s)') % (rule.name, e))
-        return space.get('failed', False)
+            raise UserError(_(
+                'Error when evaluating the exception.rule: '
+                '%s\n(%s)') % (rule.name, e))
+        return eval_ctx.get('failed', False)
 
     @api.multi
-    def _detect_exceptions(self, model_exceptions,
-                           sub_exceptions):
+    def _detect_exceptions(self, model_exceptions, sub_exceptions):
         self.ensure_one()
         exception_ids = []
         next_state_rule = False

base_exception/readme/CONTRIBUTORS.rst

@@ -0,0 +1,8 @@
+* Raphaël Valyi <raphael.valyi@akretion.com>
+* Renato Lima <renato.lima@akretion.com>
+* Sébastien BEAU <sebastien.beau@akretion.com>
+* Guewen Baconnier <guewen.baconnier@camptocamp.com>
+* Yannick Vaucher <yannick.vaucher@camptocamp.com>
+* SodexisTeam <dev@sodexis.com>
+* Mourad EL HADJ MIMOUNE <mourad.elhadj.mimoune@akretion.com>
+* Iván Todorovich <ivan.todorovich@gmail.com>

base_exception/readme/DESCRIPTION.rst

@@ -0,0 +1,6 @@
+This module provide an abstract model to manage customizable
+exceptions to be applied on different models (sale order, invoice, ...).
+
+It is not useful for itself. You can see an example of implementation
+in the 'sale_exception' module. (sale-workflow repository) or
+'purchase_exception' module (purchase-workflow repository).

base_exception/readme/ROADMAP.rst

@@ -0,0 +1 @@
+Terms used in old api like `pool`, `cr`, `uid` must be removed porting this module in version 12.

base_exception/static/description/index.html

@@ -0,0 +1,437 @@
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+}
+table.docutils.booktabs th {
+  border-bottom: thin solid;
+  text-align: left;
+}
+
+h1 tt.docutils, h2 tt.docutils, h3 tt.docutils,
+h4 tt.docutils, h5 tt.docutils, h6 tt.docutils {
+  font-size: 100% }
+
+ul.auto-toc {
+  list-style-type: none }
+
+</style>
+</head>
+<body>
+<div class="document" id="exception-rule">
+<h1 class="title">Exception Rule</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/base_exception"><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-base_exception"><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>This module provide an abstract model to manage customizable
+exceptions to be applied on different models (sale order, invoice, …).</p>
+<p>It is not useful for itself. You can see an example of implementation
+in the ‘sale_exception’ module. (sale-workflow repository) or
+‘purchase_exception’ module (purchase-workflow repository).</p>
+<p><strong>Table of contents</strong></p>
+<div class="contents local topic" id="contents">
+<ul class="simple">
+<li><a class="reference internal" href="#known-issues-roadmap" id="id1">Known issues / Roadmap</a></li>
+<li><a class="reference internal" href="#bug-tracker" id="id2">Bug Tracker</a></li>
+<li><a class="reference internal" href="#credits" id="id3">Credits</a><ul>
+<li><a class="reference internal" href="#authors" id="id4">Authors</a></li>
+<li><a class="reference internal" href="#contributors" id="id5">Contributors</a></li>
+<li><a class="reference internal" href="#maintainers" id="id6">Maintainers</a></li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="section" id="known-issues-roadmap">
+<h1><a class="toc-backref" href="#id1">Known issues / Roadmap</a></h1>
+<p>Terms used in old api like <cite>pool</cite>, <cite>cr</cite>, <cite>uid</cite> must be removed porting this module in version 12.</p>
+</div>
+<div class="section" id="bug-tracker">
+<h1><a class="toc-backref" href="#id2">Bug Tracker</a></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:%20base_exception%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><a class="toc-backref" href="#id3">Credits</a></h1>
+<div class="section" id="authors">
+<h2><a class="toc-backref" href="#id4">Authors</a></h2>
+<ul class="simple">
+<li>Akretion</li>
+<li>Sodexis</li>
+<li>Camptocamp</li>
+</ul>
+</div>
+<div class="section" id="contributors">
+<h2><a class="toc-backref" href="#id5">Contributors</a></h2>
+<ul class="simple">
+<li>Raphaël Valyi &lt;<a class="reference external" href="mailto:raphael.valyi&#64;akretion.com">raphael.valyi&#64;akretion.com</a>&gt;</li>
+<li>Renato Lima &lt;<a class="reference external" href="mailto:renato.lima&#64;akretion.com">renato.lima&#64;akretion.com</a>&gt;</li>
+<li>Sébastien BEAU &lt;<a class="reference external" href="mailto:sebastien.beau&#64;akretion.com">sebastien.beau&#64;akretion.com</a>&gt;</li>
+<li>Guewen Baconnier &lt;<a class="reference external" href="mailto:guewen.baconnier&#64;camptocamp.com">guewen.baconnier&#64;camptocamp.com</a>&gt;</li>
+<li>Yannick Vaucher &lt;<a class="reference external" href="mailto:yannick.vaucher&#64;camptocamp.com">yannick.vaucher&#64;camptocamp.com</a>&gt;</li>
+<li>SodexisTeam &lt;<a class="reference external" href="mailto:dev&#64;sodexis.com">dev&#64;sodexis.com</a>&gt;</li>
+<li>Mourad EL HADJ MIMOUNE &lt;<a class="reference external" href="mailto:mourad.elhadj.mimoune&#64;akretion.com">mourad.elhadj.mimoune&#64;akretion.com</a>&gt;</li>
+<li>Iván Todorovich &lt;<a class="reference external" href="mailto:ivan.todorovich&#64;gmail.com">ivan.todorovich&#64;gmail.com</a>&gt;</li>
+</ul>
+</div>
+<div class="section" id="maintainers">
+<h2><a class="toc-backref" href="#id6">Maintainers</a></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>This module is part of the <a class="reference external" href="https://github.com/OCA/server-tools/tree/12.0/base_exception">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>

base_exception/tests/test_base_exception.py

@@ -13,8 +13,6 @@ _logger = logging.getLogger(__name__)
 @common.post_install(True)
 class TestBaseException(common.SavepointCase):
 
-    # pylint: disable=missing-return
-
     @classmethod
     def setUpClass(cls):
         super(TestBaseException, cls).setUpClass()
@@ -25,31 +23,28 @@ class TestBaseException(common.SavepointCase):
         cls.exception_confirm = cls.env['exception.rule.confirm']
 
         cls.exception_rule._fields['rule_group'].selection.append(
-            ('test_base', 'test base exception')
-        )
+            ('test_base', 'Test Base Exception'))
+
         cls.exception_rule._fields['model'].selection.append(
-            ('base.exception.test.purchase',
-             'base.exception.test.purchase')
-        )
+            ('base.exception.test.purchase', 'Purchase Order'))
+
         cls.exception_rule._fields['model'].selection.append(
-            ('base.exception.test.purchase.line',
-             'base.exception.test.purchase.line')
-        )
+            ('base.exception.test.purchase.line', 'Purchase Order Line'))
+
         cls.exceptionnozip = cls.env['exception.rule'].create({
             'name': "No ZIP code on destination",
             'sequence': 10,
             'rule_group': "test_base",
             'model': "base.exception.test.purchase",
-            'code': """if not test_base.partner_id.zip:
-    failed=True""",
+            'code': "if not test_base.partner_id.zip: failed=True",
         })
+
         cls.exceptionno_minorder = cls.env['exception.rule'].create({
             'name': "Min order except",
             'sequence': 10,
             'rule_group': "test_base",
             'model': "base.exception.test.purchase",
-            'code': """if test_base.amount_total <= 200.0:
-    failed=True""",
+            'code': "if test_base.amount_total <= 200.0: failed=True",
         })
 
         cls.exceptionno_lineqty = cls.env['exception.rule'].create({
@@ -57,8 +52,8 @@ class TestBaseException(common.SavepointCase):
             'sequence': 10,
             'rule_group': "test_base",
             'model': "base.exception.test.purchase.line",
-            'code': """if test_base_line.qty <= 0:
-        failed=True"""})
+            'code': "if test_base_line.qty <= 0: failed=True"
+        })
 
     def test_purchase_order_exception(self):
         partner = self.env.ref('base.res_partner_1')
@@ -66,9 +61,11 @@ class TestBaseException(common.SavepointCase):
         potest1 = self.env['base.exception.test.purchase'].create({
             'name': 'Test base exception to basic purchase',
             'partner_id': partner.id,
-            'line_ids': [(0, 0, {'name': "line test",
+            'line_ids': [(0, 0, {
+                'name': "line test",
                 'amount': 120.0,
-                                 'qty': 1.5})],
+                'qty': 1.5,
+            })],
         })
 
         potest1.button_confirm()

base_exception/views/base_exception_view.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" ?>
 <odoo>
+    
     <record id="view_exception_rule_tree" model="ir.ui.view">
         <field name="name">exception.rule.tree</field>
         <field name="model">exception.rule</field>
@@ -20,24 +21,45 @@
         <field name="arch" type="xml">
             <form string="Exception Rule Setup" name="exception_rule">
                 <sheet>
+                    <div class="oe_button_box" name="button_box">
+                        <button name="toggle_active" type="object" class="oe_stat_button" icon="fa-archive">
+                            <field name="active" widget="boolean_button"/>
+                        </button>
+                    </div>
+                    <div class="oe_title">
+                        <label for="name" class="oe_edit_only"/>
+                        <h1><field name="name"/></h1>
+                    </div>
                     <group>
                         <group>
-                            <field name="name"/>
                             <field name="description"/>
                         </group>
-                        <group>
-                            <field name="active"/>
-                            <field name="sequence"/>
-                        </group>
                     </group>
                     <group>
                         <group colspan="4" groups="base.group_system">
                             <field name="rule_group"/>
                             <field name="model"/>
                             <field name="next_state"/>
-                            <field name="code"/>
                         </group>
                     </group>
+                    <notebook>
+                        <page name="code" string="Python Code">
+                            <field name="code" widget="ace" options="{'mode': 'python'}" placeholder="Enter Python code here. Help about Python expression is available in the help tab of this document."/>
+                        </page>
+                        <page name="help" string="Help">
+                            <group>
+                                <div style="margin-top: 4px;">
+                                    <h3>Help with Python expressions</h3>
+                                    <p>Various fields may use Python code or Python expressions. The following variables can be used:</p>
+                                    <ul>
+                                        <li><code>self</code>: Record on which the rule is evaluated.</li>
+                                        <li><code>time</code>: useful Python libraries</li>
+                                        <li>To block the exception use: <code>failed = True</code></li>
+                                    </ul>
+                                </div>
+                            </group>
+                        </page>
+                    </notebook>
                 </sheet>
             </form>
         </field>

base_exception/wizard/base_exception_confirm.py

@@ -2,19 +2,20 @@
 # Copyright 2017 Akretion (http://www.akretion.com)
 # Mourad EL HADJ MIMOUNE <mourad.elhadj.mimoune@akretion.com>
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
-
 from odoo import api, fields, models, _
 from odoo.exceptions import ValidationError
 
 
 class ExceptionRuleConfirm(models.AbstractModel):
-
     _name = 'exception.rule.confirm'
+    _description = 'Exception Rule Confirm Wizard'
 
     related_model_id = fields.Many2one('base.exception',)
-    exception_ids = fields.Many2many('exception.rule',
+    exception_ids = fields.Many2many(
+        'exception.rule',
         string='Exceptions to resolve',
-                                     readonly=True)
+        readonly=True,
+    )
     ignore = fields.Boolean('Ignore Exceptions')
 
     @api.model

base_exception/wizard/base_exception_confirm_view.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <odoo>
+
     <record id="view_exception_rule_confirm" model="ir.ui.view">
         <field name="name">Exceptions Rules</field>
         <field name="model">exception.rule.confirm</field>
@@ -34,4 +35,5 @@
         <field name="view_id" ref="view_exception_rule_confirm"/>
         <field name="target">new</field>
     </record>
+
 </odoo>