[ADD] hr_employee_category_parent

hr_employee_category_parent/README.rst

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+.. image:: https://img.shields.io/badge/licence-AGPL--3-blue.svg
+    :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+    :alt: License: AGPL-3
+
+===========================
+HR Employee Category Parent
+===========================
+
+This module was written to restore the employee category hierarchy from v8 and before.
+
+Usage
+=====
+
+To use this module, you need to:
+
+#. go to some employee category and assign a parent
+
+.. image:: https://odoo-community.org/website/image/ir.attachment/5784_f2813bd/datas
+    :alt: Try me on Runbot
+    :target: https://runbot.odoo-community.org/runbot/116/10.0
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues
+<https://github.com/OCA/hr/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.
+
+Roadmap
+=======
+
+* some hierarchy sensitive name search would be nice. Maybe better create `base_mixin_parent` in server-tools that handles hierarchical structures generally and use it here
+
+Credits
+=======
+
+Images
+------
+
+* Odoo Community Association: `Icon <https://github.com/OCA/maintainer-tools/blob/master/template/module/static/description/icon.svg>`_.
+
+Contributors
+------------
+
+* Holger Brunn <hbrunn@therp.nl>
+
+Do not contact contributors directly about help with questions or problems concerning this addon, but use the `community mailing list <mailto:community@mail.odoo.com>`_ or the `appropriate specialized mailinglist <https://odoo-community.org/groups>`_ for help, and the bug tracker linked in `Bug Tracker`_ above for technical issues.
+
+Maintainer
+----------
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+This module is maintained by the OCA.
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.
+
+To contribute to this module, please visit https://odoo-community.org.

hr_employee_category_parent/__init__.py

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+# -*- coding: utf-8 -*-
+# © 2017 Therp BV <http://therp.nl>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+from . import models

hr_employee_category_parent/__manifest__.py

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+# -*- coding: utf-8 -*-
+# © 2017 Therp BV <http://therp.nl>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+{
+    "name": "HR Employee Category Parent",
+    "version": "10.0.1.0.0",
+    "author": "Therp BV,Odoo Community Association (OCA)",
+    "license": "AGPL-3",
+    "category": "Human Resources",
+    "summary": "Categorize your employee categories",
+    "depends": [
+        'hr',
+    ],
+    "data": [
+        "views/hr_employee_category.xml",
+    ],
+    "demo": [
+        "demo/hr_employee_category.xml",
+    ],
+}

hr_employee_category_parent/demo/hr_employee_category.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<openerp>
+    <data>
+        <record id="cat1" model="hr.employee.category">
+            <field name="name">Category 1</field>
+        </record>
+        <record id="cat2" model="hr.employee.category">
+            <field name="name">Category 2</field>
+            <field name="parent_id" ref="cat1" />
+        </record>
+        <record id="cat3" model="hr.employee.category">
+            <field name="name">Category 3</field>
+            <field name="parent_id" ref="cat2" />
+        </record>
+    </data>
+</openerp>

hr_employee_category_parent/models/__init__.py

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+# -*- coding: utf-8 -*-
+# © 2017 Therp BV <http://therp.nl>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+from . import hr_employee_category

hr_employee_category_parent/models/hr_employee_category.py

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+# -*- coding: utf-8 -*-
+# © 2017 Therp BV <http://therp.nl>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+from openerp import _, api, exceptions, fields, models
+
+
+class HrEmployeeCategory(models.Model):
+    _inherit = 'hr.employee.category'
+
+    parent_id = fields.Many2one('hr.employee.category', 'Parent category')
+
+    @api.multi
+    def name_get(self):
+        return [
+            (
+                this.id,
+                ' / '.join(
+                    p.name for p in reversed(list(this._iter_parents(True)))
+                ),
+            )
+            for this in self
+        ]
+
+    @api.multi
+    def _iter_parents(self, include_self=False):
+        self.ensure_one()
+        if not include_self:
+            self = self.parent_id
+        while self:
+            yield self
+            self = self.parent_id
+
+    @api.constrains('parent_id')
+    def _constrain_parent_id(self):
+        for this in self:
+            for parent in this._iter_parents():
+                if parent == this:
+                    raise exceptions.ValidationError(
+                        _('You can\'t create cyclic hierarchies'),
+                    )

hr_employee_category_parent/tests/__init__.py

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+# -*- coding: utf-8 -*-
+# © 2017 Therp BV <http://therp.nl>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+from . import test_hr_employee_category_parent

hr_employee_category_parent/tests/test_hr_employee_category_parent.py

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+# -*- coding: utf-8 -*-
+# © 2017 Therp BV <http://therp.nl>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+from odoo import exceptions
+from openerp.tests.common import TransactionCase
+
+
+class TestHrCategoryParent(TransactionCase):
+    def test_hr_employee_category_parent(self):
+        with self.assertRaises(exceptions.ValidationError):
+            with self.env.cr.savepoint():
+                self.env.ref('hr_employee_category_parent.cat3').write({
+                    'parent_id':
+                    self.env.ref('hr_employee_category_parent.cat3').id,
+                })
+        with self.assertRaises(exceptions.ValidationError):
+            with self.env.cr.savepoint():
+                self.env.ref('hr_employee_category_parent.cat1').write({
+                    'parent_id':
+                    self.env.ref('hr_employee_category_parent.cat3').id,
+                })
+        self.assertEqual(
+            self.env.ref('hr_employee_category_parent.cat3').display_name,
+            'Category 1 / Category 2 / Category 3',
+        )

hr_employee_category_parent/views/hr_employee_category.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<openerp>
+    <data>
+        <record id="view_hr_employee_category_form" model="ir.ui.view">
+            <field name="model">hr.employee.category</field>
+            <field name="inherit_id" ref="hr.view_employee_category_form" />
+            <field name="arch" type="xml">
+                <field name="name" position="after">
+                    <field name="parent_id" />
+                </field>
+            </field>
+        </record>
+        <record id="view_hr_employee_category_tree" model="ir.ui.view">
+            <field name="model">hr.employee.category</field>
+            <field name="inherit_id" ref="hr.view_employee_category_list" />
+            <field name="arch" type="xml">
+                <field name="name" position="after">
+                    <field name="parent_id" />
+                    <field name="display_name" />
+                </field>
+            </field>
+        </record>
+    </data>
+</openerp>