diff --git a/base_location/README.rst b/base_location/README.rst
index 5f52c2da8..160dbf7c0 100644
--- a/base_location/README.rst
+++ b/base_location/README.rst
@@ -1,5 +1,5 @@
 .. image:: https://img.shields.io/badge/licence-AGPL--3-blue.svg
-   :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+   :target: https://www.gnu.org/licenses/agpl-3.0-standalone.html
    :alt: License: AGPL-3
 
 =======================
@@ -12,27 +12,52 @@ It enables zip, city, state and country auto-completion on partners and companie
 
 Also allows different search filters.
 
+Configuration
+=============
+
+#. Activate the developer mode in *Settings*.
+#. Go to *Settings / Technical / Locations Management / Locations*.
+#. Create a new Location.
+
+or, with module 'Contacts Directory' installed:
+#. Go to *Contacts / Configuration / Localization / Countries*.
+#. Locate the desired country.
+#. Press on the button 'Locations'.
+
+or,
+#. Go to *Contacts / Configuration / Localization / Fed. States*
+#. Locate the desired state.
+#. Enter the desired Locations.
+
 Usage
 =====
 
+#. Access a partner record
+#. Fill the field *Location completion*
+#. Information about country, state, city and zip will be filled automatically
+
+
+
 .. image:: https://odoo-community.org/website/image/ir.attachment/5784_f2813bd/datas
    :alt: Try me on Runbot
-   :target: https://runbot.odoo-community.org/runbot/134/10.0
+   :target: https://runbot.odoo-community.org/runbot/134/11.0
 
 Bug Tracker
 ===========
 
-Bugs are tracked on `GitHub Issues <https://github.com/OCA/
-partner_contact/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 `here <https://github.com/OCA/
-partner_contact/issues/new?body=module:%20
-base_location%0Aversion:%20
-10.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+Bugs are tracked on `GitHub Issues
+<https://github.com/OCA/partner_contact/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.
 
 Credits
 =======
 
+Images
+------
+
+* Icon park: `Icon http://icon-park.com/icon/location-map-pin-orange3/`
+
 Contributors
 ------------
 
@@ -45,17 +70,13 @@ Contributors
 * Francesco Apruzzese <f.apruzzese@apuliasoftware.it>
 * Dave Lasley <dave@laslabs.com>
 
-Icon
-----
-* http://icon-park.com/icon/location-map-pin-orange3/
-
 
 Maintainer
 ----------
 
-.. image:: http://odoo-community.org/logo.png
+.. image:: https://odoo-community.org/logo.png
    :alt: Odoo Community Association
-   :target: http://odoo-community.org
+   :target: https://odoo-community.org
 
 This module is maintained by the OCA.
 
@@ -63,4 +84,4 @@ 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 http://odoo-community.org.
+To contribute to this module, please visit https://odoo-community.org.
diff --git a/base_location/__init__.py b/base_location/__init__.py
index a5fc6a4d0..e2aed6e67 100644
--- a/base_location/__init__.py
+++ b/base_location/__init__.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Copyright 2016 Nicolas Bessi, Camptocamp SA
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
diff --git a/base_location/__manifest__.py b/base_location/__manifest__.py
index 91b865f5e..ab99a039d 100644
--- a/base_location/__manifest__.py
+++ b/base_location/__manifest__.py
@@ -1,12 +1,11 @@
-# -*- coding: utf-8 -*-
 # Copyright 2016 Nicolas Bessi, Camptocamp SA
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
 {
     'name': 'Location management (aka Better ZIP)',
-    'version': '10.0.1.0.1',
+    'version': '11.0.1.0.0',
     'depends': [
-        'base',
+        'base_address_city'
     ],
     'author': "Camptocamp,"
               "ACYSOS S.L.,"
diff --git a/base_location/demo/better_zip.xml b/base_location/demo/better_zip.xml
index 7ecc6b14b..0c7f3b9ee 100644
--- a/base_location/demo/better_zip.xml
+++ b/base_location/demo/better_zip.xml
@@ -1,12 +1,8 @@
 <?xml version = "1.0" encoding="utf-8"?>
-<openerp>
-  <data>
-
+<odoo>
     <record id="demo_brussels" model="res.better.zip">
       <field name="name">1000</field>
       <field name="city">Brussels</field>
       <field name="country_id" ref="base.be"/>
     </record>
-
-  </data>
-</openerp>
+</odoo>
diff --git a/base_location/models/__init__.py b/base_location/models/__init__.py
index 3d1df1e8d..3f7a893a5 100644
--- a/base_location/models/__init__.py
+++ b/base_location/models/__init__.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Copyright 2016 Nicolas Bessi, Camptocamp SA
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
diff --git a/base_location/models/better_zip.py b/base_location/models/better_zip.py
index 777f736ce..be949fe23 100644
--- a/base_location/models/better_zip.py
+++ b/base_location/models/better_zip.py
@@ -1,8 +1,8 @@
-# -*- coding: utf-8 -*-
 # Copyright 2016 Nicolas Bessi, Camptocamp SA
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
-from odoo import models, fields, api
+from odoo import api, fields, models, _
+from odoo.exceptions import ValidationError
 
 
 class BetterZip(models.Model):
@@ -11,37 +11,90 @@ class BetterZip(models.Model):
     _name = "res.better.zip"
     _description = __doc__
     _order = "name asc"
-    _rec_name = "display_name"
 
-    display_name = fields.Char('Name', compute='_get_display_name', store=True)
     name = fields.Char('ZIP')
-    code = fields.Char('City Code', size=64,
-                       help="The official code for the city")
+    code = fields.Char(
+        'City Code',
+        size=64,
+        help="The official code for the city"
+    )
     city = fields.Char('City', required=True)
-    state_id = fields.Many2one('res.country.state', 'State')
+    city_id = fields.Many2one(
+        'res.city',
+        'City',
+    )
+    state_id = fields.Many2one(
+        'res.country.state',
+        'State',
+    )
     country_id = fields.Many2one('res.country', 'Country')
+    enforce_cities = fields.Boolean(
+        related='country_id.enforce_cities',
+        readonly=True,
+    )
     latitude = fields.Float()
     longitude = fields.Float()
 
-    @api.one
-    @api.depends(
-        'name',
-        'city',
-        'state_id',
-        'country_id',
-        )
-    def _get_display_name(self):
-        if self.name:
-            name = [self.name, self.city]
-        else:
-            name = [self.city]
-        if self.state_id:
-            name.append(self.state_id.name)
+    @api.multi
+    @api.depends('name', 'city', 'state_id', 'country_id')
+    def name_get(self):
+        result = []
+        for rec in self:
+            name = []
+            if rec.name:
+                name.append('%(name)s' % {'name': rec.name})
+            name.append('%(name)s' % {'name': rec.city})
+            if rec.state_id:
+                name.append('%(name)s' % {'name': rec.state_id.name})
+            if rec.country_id:
+                name.append('%(name)s' % {'name': rec.country_id.name})
+            result.append((rec.id, ", ".join(name)))
+        return result
+
+    @api.onchange('country_id')
+    def _onchange_country_id(self):
+        if self.state_id.country_id != self.country_id:
+            self.state_id = False
+        if self.city_id.country_id != self.country_id:
+            self.city_id = False
         if self.country_id:
-            name.append(self.country_id.name)
-        self.display_name = ", ".join(name)
+            domain = [('country_id', '=', self.country_id.id)]
+        else:
+            domain = []
+        return {
+            'domain': {
+                'state_id': domain,
+                'city_id': domain,
+            }
+        }
+
+    @api.onchange('city_id')
+    def _onchange_city_id(self):
+        if self.city_id:
+            self.city = self.city_id.name
+            self.country_id = self.city_id.country_id
+            self.state_id = self.city_id.state_id
 
     @api.onchange('state_id')
-    def onchange_state_id(self):
+    def _onchange_state_id(self):
         if self.state_id:
             self.country_id = self.state_id.country_id
+
+    @api.constrains('state_id', 'country_id', 'city_id')
+    def constrains_country(self):
+        for rec in self:
+            if rec.state_id and rec.state_id.country_id != \
+                    rec.country_id:
+                raise ValidationError(_(
+                    "The country of the state differs from the country in "
+                    "location %s") % rec.name)
+            if rec.city_id and rec.city_id.country_id \
+                    != rec.country_id:
+                raise ValidationError(_(
+                    "The country of the city differs from the country in "
+                    "location %s") % rec.name)
+            if rec.city_id and rec.city_id.state_id \
+                    != rec.state_id:
+                raise ValidationError(_(
+                    "The state of the city differs from the state in "
+                    "location %s") % rec.name)
diff --git a/base_location/models/company.py b/base_location/models/company.py
index d1970d2ae..3c0e78560 100644
--- a/base_location/models/company.py
+++ b/base_location/models/company.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Copyright 2016 Nicolas Bessi, Camptocamp SA
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
@@ -6,19 +5,60 @@ from odoo import models, fields, api
 
 
 class ResCompany(models.Model):
-
     _inherit = 'res.company'
 
-    @api.onchange('better_zip_id')
-    def on_change_city(self):
-        if self.better_zip_id:
-            self.zip = self.better_zip_id.name
-            self.city = self.better_zip_id.city
-            self.state_id = self.better_zip_id.state_id
-            self.country_id = self.better_zip_id.country_id
-
-    better_zip_id = fields.Many2one(
+    city_id = fields.Many2one(
+        'res.city',
+        compute='_compute_address',
+        inverse='_inverse_city_id',
+        string="City"
+    )
+    zip_id = fields.Many2one(
         'res.better.zip',
-        string='Location',
+        string='ZIP Location',
+        compute='_compute_address',
+        inverse='_inverse_zip_id',
+        oldname="better_zip_id",
         help='Use the city name or the zip code to search the location',
     )
+    # In order to keep the same logic used in odoo, fields must be computed
+    # and inversed, not related. This way, we can ensure that it works
+    # correctly on changes and inconsistencies cannot happen.
+    # When you make the fields related, the constrains added in res.partner
+    # will fail. because when you change the city_id in the company, you are
+    # effectively changing it in the partner. The constrains on the partner
+    # are evaluated before the inverse methods update the other fields (city,
+    # etc..). And we need constrains in the partner to ensure consistency.
+    # So, as a conclusion, address fields are very related to each other.
+    # Either you make them all related to the partner in company, or you
+    # don't for all of them. But mixing methods produces inconsistencies.
+
+    country_enforce_cities = fields.Boolean(
+        related='country_id.enforce_cities'
+    )
+
+    def _get_company_address_fields(self, partner):
+        res = super(ResCompany, self)._get_company_address_fields(partner)
+        res['city_id'] = partner.city_id
+        res['zip_id'] = partner.zip_id
+        return res
+
+    def _inverse_city_id(self):
+        for company in self:
+            company.partner_id.city_id = company.city_id
+
+    def _inverse_zip_id(self):
+        for company in self:
+            company.partner_id.zip_id = company.zip_id
+
+    @api.onchange('zip_id')
+    def _onchange_zip_id(self):
+        if self.zip_id:
+            self.zip = self.zip_id.name
+            self.city_id = self.zip_id.city_id
+            self.city = self.zip_id.city
+            self.country_id = self.zip_id.country_id
+            if self.country_id.enforce_cities:
+                self.state_id = self.city_id.state_id
+            else:
+                self.state_id = self.zip_id.state_id
diff --git a/base_location/models/partner.py b/base_location/models/partner.py
index 1eaa08cf3..61e172920 100644
--- a/base_location/models/partner.py
+++ b/base_location/models/partner.py
@@ -1,18 +1,66 @@
-# -*- coding: utf-8 -*-
 # Copyright 2016 Nicolas Bessi, Camptocamp SA
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
-from odoo import models, fields, api
+from odoo import api, fields, models, _
+from odoo.exceptions import ValidationError
 
 
 class ResPartner(models.Model):
     _inherit = 'res.partner'
-    zip_id = fields.Many2one('res.better.zip', 'City/Location')
+    zip_id = fields.Many2one('res.better.zip', 'ZIP Location')
+
+    @api.onchange('city_id')
+    def _onchange_city_id(self):
+        if not self.zip_id:
+            super(ResPartner, self)._onchange_city_id()
+        if self.zip_id and self.city_id != self.zip_id.city_id:
+            self.zip_id = False
+            self.zip = False
+            self.city = False
+        if self.city_id:
+            return {
+                'domain': {
+                    'zip_id': [('city_id', '=', self.city_id.id)]
+                },
+            }
+        return {'domain': {'zip_id': []}}
+
+    @api.onchange('state_id')
+    def _onchange_state_id(self):
+        if self.zip_id and self.state_id != self.zip_id.state_id:
+            self.zip_id = False
+            self.zip = False
+            self.city = False
+
+    @api.onchange('country_id')
+    def _onchange_country_id(self):
+        res = super(ResPartner, self)._onchange_country_id()
+        if self.zip_id and self.zip_id.country_id != self.country_id:
+            self.zip_id = False
+        return res
 
     @api.onchange('zip_id')
-    def onchange_zip_id(self):
+    def _onchange_zip_id(self):
         if self.zip_id:
+            self.country_id = self.zip_id.country_id
+            if self.country_id.enforce_cities:
+                self.city_id = self.zip_id.city_id
             self.zip = self.zip_id.name
-            self.city = self.zip_id.city
             self.state_id = self.zip_id.state_id
-            self.country_id = self.zip_id.country_id
+            self.city = self.zip_id.city
+
+    @api.constrains('zip_id', 'country_id', 'city_id', 'state_id')
+    def _check_zip(self):
+        for rec in self.filtered('zip_id'):
+            if rec.zip_id.state_id != rec.state_id:
+                raise ValidationError(_(
+                    "The state of the partner %s differs from that in "
+                    "location %s") % (rec.name, rec.zip_id.name))
+            if rec.zip_id.country_id != rec.country_id:
+                raise ValidationError(_(
+                    "The country of the partner %s differs from that in "
+                    "location %s") % (rec.name, rec.zip_id.name))
+            if rec.zip_id.city_id != rec.city_id:
+                raise ValidationError(_(
+                    "The city of partner %s differs from that in "
+                    "location %s") % (rec.name, rec.zip_id.name))
diff --git a/base_location/models/state.py b/base_location/models/state.py
index 5c3b31f60..5161a34a6 100644
--- a/base_location/models/state.py
+++ b/base_location/models/state.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Copyright 2016 Nicolas Bessi, Camptocamp SA
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
diff --git a/base_location/security/ir.model.access.csv b/base_location/security/ir.model.access.csv
index c6562df1b..5ef6c8b46 100644
--- a/base_location/security/ir.model.access.csv
+++ b/base_location/security/ir.model.access.csv
@@ -1,3 +1,3 @@
 "id","name","model_id:id","group_id:id","perm_read","perm_write","perm_create","perm_unlink"
 "ir_model_access_betterzip0","res_better_zip group_user_all","model_res_better_zip",base.group_user,1,0,0,0
-"ir_model_access_betterzip1","res_better_zip group_user","model_res_better_zip","base.group_partner_manager",1,1,1,1
\ No newline at end of file
+"ir_model_access_betterzip1","res_better_zip group_user","model_res_better_zip","base.group_partner_manager",1,1,1,1
diff --git a/base_location/tests/__init__.py b/base_location/tests/__init__.py
index 3c8d5b3d9..372da9775 100644
--- a/base_location/tests/__init__.py
+++ b/base_location/tests/__init__.py
@@ -1,5 +1,4 @@
-# -*- coding: utf-8 -*-
 # Copyright 2015 Yannick Vaucher, Camptocamp SA
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
-from . import test_completion
+from . import test_base_location
diff --git a/base_location/tests/test_base_location.py b/base_location/tests/test_base_location.py
new file mode 100644
index 000000000..b179f3b5d
--- /dev/null
+++ b/base_location/tests/test_base_location.py
@@ -0,0 +1,270 @@
+# Copyright 2015 Yannick Vaucher, Camptocamp SA
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo.tests.common import TransactionCase
+from odoo.exceptions import ValidationError
+
+
+class TestBaseLocation(TransactionCase):
+
+    def test_onchange_better_zip_state_id(self):
+        """ Test onchange on res.better.zip """
+        usa_MA = self.env.ref('base.state_us_34')
+        better_zip1 = self.env['res.better.zip'].new(self.values_better_zip1())
+        better_zip1.state_id = usa_MA
+        better_zip1._onchange_state_id()
+        self.assertEqual(better_zip1.country_id, usa_MA.country_id)
+
+    def test_onchange_better_zip_city_id(self):
+        better_zip2 = self.env['res.better.zip'].new(self.values_better_zip2())
+        better_zip2.city_id = self.city_madrid
+        better_zip2._onchange_city_id()
+        self.assertEqual(better_zip2.city, self.city_madrid.name)
+
+    def test_onchange_better_zip_country_id(self):
+        better_zip1 = self.env['res.better.zip'].new(self.values_better_zip1())
+        better_zip1.country_id = self.env.ref('base.es')
+        better_zip1._onchange_country_id()
+        self.assertFalse(better_zip1.state_id)
+
+    def test_onchange_better_zip_none(self):
+        better_zip1 = self.env['res.better.zip'].new(self.values_better_zip1())
+        better_zip1.country_id = False
+        better_zip1._onchange_country_id()
+        self.assertFalse(better_zip1.state_id)
+
+    def test_onchange_partner_city_completion(self):
+        partner1 = self.env['res.partner'].new({
+            'name': 'Camptocamp',
+        })
+        better_zip2 = self.env['res.better.zip'].create(
+            self.values_better_zip2())
+        better_zip2.country_id.enforce_cities = True
+        partner1.zip_id = better_zip2
+        partner1._onchange_zip_id()
+        self.assertEqual(partner1.zip, better_zip2.name)
+        self.assertEqual(partner1.city, better_zip2.city)
+        self.assertEqual(partner1.state_id, better_zip2.state_id)
+        self.assertEqual(partner1.country_id, better_zip2.country_id)
+
+    def test_onchange_company_city_completion(self):
+        company = self.env['res.company'].new({'name': 'Test'})
+        better_zip1 = self.env['res.better.zip'].create(
+            self.values_better_zip1())
+        company.zip_id = better_zip1
+        company._onchange_zip_id()
+        self.assertEqual(company.zip, better_zip1.name)
+        self.assertEqual(company.city, better_zip1.city)
+        self.assertEqual(company.state_id, better_zip1.state_id)
+        self.assertEqual(company.country_id, better_zip1.country_id)
+
+    def test_company_address_fields(self):
+        better_zip1 = self.env['res.better.zip'].create(
+            self.values_better_zip1()
+        )
+        company = self.env['res.company'].create({
+            'name': 'Test',
+        })
+        self.assertTrue(company.partner_id)
+        company.partner_id.write({
+            'zip_id': better_zip1.id,
+            'state_id': better_zip1.state_id.id,
+            'country_id': better_zip1.country_id.id,
+            'city_id': better_zip1.city_id.id,
+            'city': better_zip1.city,
+            'zip': better_zip1.name,
+        })
+        company._compute_address()
+        self.assertEqual(company.zip_id, company.partner_id.zip_id)
+        self.assertEqual(company.city_id, company.partner_id.city_id)
+
+    def test_company_address_fields_inverse(self):
+        better_zip2 = self.env['res.better.zip'].create(
+            self.values_better_zip2()
+        )
+        company = self.env['res.company'].new({
+            'name': 'Test',
+            'partner_id': self.env['res.partner'].new({}).id
+            # Partner must be initiated in order to be filled
+        })
+        company.update({
+            'zip_id': better_zip2.id,
+        })
+        company._inverse_city_id()
+        company._inverse_zip_id()
+        self.assertEqual(company.zip_id, company.partner_id.zip_id)
+        self.assertEqual(company.city_id, company.partner_id.city_id)
+
+    def test_onchange_company_city_id_completion(self):
+        company = self.env['res.company'].new({'name': 'Test'})
+        better_zip2 = self.env['res.better.zip'].create(
+            self.values_better_zip2())
+        company.zip_id = better_zip2
+        company._onchange_zip_id()
+        self.assertEqual(company.city_id, better_zip2.city_id)
+
+    def test_constrains_better_zip_01(self):
+        better_zip1 = self.env['res.better.zip'].create(
+            self.values_better_zip1())
+        better_zip2 = self.env['res.better.zip'].create(
+            self.values_better_zip2())
+
+        better_zip1.city_id = self.city_lausanne
+        with self.assertRaises(ValidationError):
+            better_zip2.city_id = better_zip1.city_id
+
+    def test_constrains_better_zip_02(self):
+        better_zip1 = self.env['res.better.zip'].create(
+            self.values_better_zip1())
+        better_zip2 = self.env['res.better.zip'].create(
+            self.values_better_zip2())
+
+        with self.assertRaises(ValidationError):
+            better_zip2.country_id = better_zip1.country_id
+
+    def test_constrains_better_zip_03(self):
+        better_zip1 = self.env['res.better.zip'].create(
+            self.values_better_zip1())
+        better_zip2 = self.env['res.better.zip'].create(
+            self.values_better_zip2())
+
+        with self.assertRaises(ValidationError):
+            better_zip2.state_id = better_zip1.state_id
+
+    def test_constrains_better_zip_04(self):
+        better_zip2 = self.env['res.better.zip'].create(
+            self.values_better_zip2())
+
+        with self.assertRaises(ValidationError):
+            better_zip2.city_id = self.city_madrid
+
+    def test_constrains_partner_01(self):
+        better_zip2 = self.env['res.better.zip'].create(
+            self.values_better_zip2())
+        with self.assertRaises(ValidationError):
+            self.env['res.partner'].create({
+                'name': 'P1',
+                'zip_id': better_zip2.id,
+            })
+
+    def test_constrains_partner_02(self):
+        better_zip2 = self.env['res.better.zip'].create(
+            self.values_better_zip2())
+        partner = self.env['res.partner'].create({
+            'name': 'P1',
+            'zip_id': better_zip2.id,
+            'country_id': better_zip2.country_id.id,
+            'state_id': better_zip2.state_id.id,
+            'city_id': better_zip2.city_id.id,
+        })
+
+        with self.assertRaises(ValidationError):
+            partner.country_id = self.ref('base.ch')
+
+        with self.assertRaises(ValidationError):
+            partner.state_id = self.state_vd.id,
+
+        with self.assertRaises(ValidationError):
+            partner.city_id = self.city_lausanne
+
+    def values_better_zip1(self):
+        return {
+            'name': 1000,
+            'city': 'Lausanne',
+            'state_id': self.state_vd.id,
+            'country_id': self.ref('base.ch'),
+        }
+
+    def values_better_zip2(self):
+        return {
+            'city_id': self.city_bcn.id,
+            'city': self.city_bcn.name,
+            'state_id': self.state_bcn.id,
+            'country_id': self.ref('base.es'),
+        }
+
+    def test_partner_onchange_country(self):
+        country_es = self.browse_ref('base.es')
+        country_es.enforce_cities = True
+        better_zip1 = self.env['res.better.zip'].create(
+            self.values_better_zip1())
+        partner = self.env['res.partner'].new({
+            'name': 'TEST',
+            'zip_id': better_zip1.id
+        })
+        partner.country_id = country_es
+        partner._onchange_country_id()
+        self.assertFalse(partner.zip_id)
+
+    def test_partner_onchange_city(self):
+        better_zip1 = self.env['res.better.zip'].create(
+            self.values_better_zip1())
+        partner = self.env['res.partner'].new({
+            'name': 'TEST',
+            'zip_id': better_zip1.id
+        })
+        self.city_bcn.country_id.enforce_cities = False
+        partner.city_id = self.city_bcn
+        partner._onchange_city_id()
+        self.assertFalse(partner.zip_id)
+        partner.city_id = False
+        res = partner._onchange_city_id()
+        self.assertFalse(res['domain']['zip_id'])
+
+    def test_partner_onchange_state(self):
+        better_zip1 = self.env['res.better.zip'].create(
+            self.values_better_zip1())
+        partner = self.env['res.partner'].new({
+            'name': 'TEST',
+            'zip_id': better_zip1.id
+        })
+        partner.state_id = self.state_bcn
+        partner._onchange_state_id()
+        self.assertFalse(partner.zip_id)
+
+    def test_display_name(self):
+        better_zip1 = self.env['res.better.zip'].create(
+            self.values_better_zip1())
+        self.assertEqual(
+            better_zip1.display_name, '1000, Lausanne, Vaud, '+self.browse_ref(
+                'base.ch'
+            ).name
+        )
+
+    def setUp(self):
+        super(TestBaseLocation, self).setUp()
+        self.state_vd = self.env['res.country.state'].create({
+            'name': 'Vaud',
+            'code': 'VD',
+            'country_id': self.ref('base.ch'),
+        })
+        self.env['res.country'].browse(self.ref('base.es')).write({
+            'enforce_cities': True
+        })
+        self.company = self.env.ref('base.main_company')
+
+        self.state_bcn = self.env['res.country.state'].create({
+            'name': 'Barcelona',
+            'code': '08',
+            'country_id': self.ref('base.es'),
+        })
+        self.state_madrid = self.env['res.country.state'].create({
+            'name': 'Madrid',
+            'code': '28',
+            'country_id': self.ref('base.es'),
+        })
+        self.city_bcn = self.env['res.city'].create({
+            'name': 'Barcelona',
+            'state_id': self.state_bcn.id,
+            'country_id': self.ref('base.es'),
+        })
+        self.city_madrid = self.env['res.city'].create({
+            'name': 'Madrid',
+            'state_id': self.state_madrid.id,
+            'country_id': self.ref('base.es'),
+        })
+        self.city_lausanne = self.env['res.city'].create({
+            'name': 'Lausanne',
+            'state_id': self.state_vd.id,
+            'country_id': self.ref('base.ch'),
+        })
diff --git a/base_location/tests/test_completion.py b/base_location/tests/test_completion.py
deleted file mode 100644
index cf75c05f3..000000000
--- a/base_location/tests/test_completion.py
+++ /dev/null
@@ -1,49 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright 2015 Yannick Vaucher, Camptocamp SA
-# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
-
-from odoo.tests.common import TransactionCase
-
-
-class TestCompletion(TransactionCase):
-
-    def test_onchange_better_zip_state_id(self):
-        """ Test onchange on res.better.zip """
-        usa_MA = self.env.ref('base.state_us_34')
-        self.better_zip1.state_id = usa_MA
-        self.better_zip1.onchange_state_id()
-        self.assertEqual(self.better_zip1.country_id, usa_MA.country_id)
-
-    def test_onchange_partner_city_completion(self):
-        self.partner1.zip_id = self.better_zip1
-        self.partner1.onchange_zip_id()
-        self.assertEqual(self.partner1.zip, self.better_zip1.name)
-        self.assertEqual(self.partner1.city, self.better_zip1.city)
-        self.assertEqual(self.partner1.state_id, self.better_zip1.state_id)
-        self.assertEqual(self.partner1.country_id, self.better_zip1.country_id)
-
-    def test_onchange_company_city_completion(self):
-        self.company.better_zip_id = self.better_zip1
-        self.company.on_change_city()
-        self.assertEqual(self.company.zip, self.better_zip1.name)
-        self.assertEqual(self.company.city, self.better_zip1.city)
-        self.assertEqual(self.company.state_id, self.better_zip1.state_id)
-        self.assertEqual(self.company.country_id, self.better_zip1.country_id)
-
-    def setUp(self):
-        super(TestCompletion, self).setUp()
-        state_vd = self.env['res.country.state'].create({
-            'name': 'Vaud',
-            'code': 'VD',
-            'country_id': self.ref('base.ch'),
-        })
-        self.company = self.env.ref('base.main_company')
-        self.better_zip1 = self.env['res.better.zip'].create({
-            'name': 1000,
-            'city': 'Lausanne',
-            'state_id': state_vd.id,
-            'country_id': self.ref('base.ch'),
-        })
-        self.partner1 = self.env['res.partner'].create({
-            'name': 'Camptocamp',
-        })
diff --git a/base_location/views/better_zip_view.xml b/base_location/views/better_zip_view.xml
index d384c7d8e..207c88e92 100644
--- a/base_location/views/better_zip_view.xml
+++ b/base_location/views/better_zip_view.xml
@@ -7,11 +7,20 @@
         <field name="arch" type="xml">
             <form string="City">
                 <group col="4">
-                <field name="name"/>
-                <field name="code"/>
-                <field name="city"/>
-                <field name="state_id"/>
-                <field name="country_id"/>
+                    <group>
+                        <field name="name"/>
+                        <field name="city_id"
+                               attrs="{'invisible': [('enforce_cities', '=', False)],'required': [('enforce_cities', '=', True)]}"/>
+                        <field name="city"
+                               attrs="{'invisible': [('enforce_cities', '=', True)]}"/>
+                        <field name="country_id"/>
+                        <field name="enforce_cities" invisible="1"/>
+                    </group>
+                    <group>
+                        <field name="code"/>
+                        <field name="state_id"
+                               attrs="{'invisible': [('enforce_cities', '=', True)]}"/>
+                    </group>
                 </group>
             </form>
         </field>
@@ -41,16 +50,18 @@
                 <field name="city"/>
                 <field name="state_id"/>
                 <field name="country_id"/>
-                    <group expand="0" string="Group By">
-                        <filter string="State" domain="[]" context="{'group_by':'state_id'}"/>
-                        <filter string="Country" domain="[]" context="{'group_by':'country_id'}"/>
-                    </group>
+                <group expand="0" string="Group By">
+                    <filter string="State" domain="[]"
+                            context="{'group_by':'state_id'}"/>
+                    <filter string="Country" domain="[]"
+                            context="{'group_by':'country_id'}"/>
+                </group>
             </search>
         </field>
     </record>
 
     <record id="action_zip_tree" model="ir.actions.act_window">
-        <field name="name">Cites/locations</field>
+        <field name="name">Locations</field>
         <field name="res_model">res.better.zip</field>
         <field name="view_type">form</field>
         <field name="view_mode">tree,form</field>
@@ -59,13 +70,13 @@
     </record>
 
     <menuitem
-        name="Cities/Locations Management"
+        name="Locations Management"
         id="locations_root_menu"
         parent="base.menu_custom"
         />
 
     <menuitem
-        name="Cities/Locations"
+        name="Locations"
         id="locations_menu"
         parent="locations_root_menu"
         action="action_zip_tree"
diff --git a/base_location/views/company_view.xml b/base_location/views/company_view.xml
index a2775ebd0..905065c01 100644
--- a/base_location/views/company_view.xml
+++ b/base_location/views/company_view.xml
@@ -8,11 +8,19 @@
         <field name="inherit_id" ref="base.view_company_form" />
         <field name="arch" type="xml">
             <field name="street2" position="after">
-                <field name="better_zip_id"
+                <field name="zip_id"
                     options="{'create_name_field': 'city'}"
                     colspan="4"
                     placeholder="City completion" />
             </field>
+            <field name="city" position="after">
+                <field name="country_enforce_cities" invisible="1"/>
+                <field name='city_id'
+                    attrs="{'invisible': [('country_enforce_cities', '=', False)]}"/>
+            </field>
+            <field name="city" position="attributes">
+                <attribute name="invisible">[('country_enforce_cities', '=', True)]</attribute>
+            </field>
         </field>
     </record>
 
diff --git a/base_location/views/partner_view.xml b/base_location/views/partner_view.xml
index cc3499b40..1e8a016e5 100644
--- a/base_location/views/partner_view.xml
+++ b/base_location/views/partner_view.xml
@@ -1,24 +1,26 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <odoo>
-
     <record id="view_partner_form" model="ir.ui.view">
         <field name="name">res.partner.zip_id.2</field>
         <field name="model">res.partner</field>
-        <field name="inherit_id" ref="base.view_partner_form" />
+        <field name="inherit_id" ref="base.view_partner_form"/>
         <field name="arch" type="xml">
             <field name="city" position="before">
                 <field name="zip_id"
-                    options="{'create_name_field': 'city', 'no_open': True, 'no_create': True}"
-                    placeholder="City completion"
-                    class="oe_edit_only" />
+                       options="{'create_name_field': 'city', 'no_open': True, 'no_create': True}"
+                       placeholder="Location completion"
+                       class="oe_edit_only"
+                        attrs="{'readonly': [('type', '=', 'contact'),('parent_id', '!=', False)]}"/>
             </field>
-            <xpath expr="//field[@name='child_ids']/form//field[@name='city']" position="before">
+            <xpath expr="//field[@name='child_ids']/form//field[@name='city']"
+                   position="before">
                 <field name="zip_id"
-                    options="{'create_name_field': 'city', 'no_open': True, 'no_create': True}"
-                    placeholder="City completion"
-                    class="oe_edit_only" />
+                       options="{'create_name_field': 'city', 'no_open': True, 'no_create': True}"
+                       placeholder="City completion"
+                       class="oe_edit_only"/>
             </xpath>
         </field>
     </record>
 
 </odoo>
+
diff --git a/base_location/views/res_country_view.xml b/base_location/views/res_country_view.xml
index d45cd0cb1..cbf0f3ff3 100644
--- a/base_location/views/res_country_view.xml
+++ b/base_location/views/res_country_view.xml
@@ -12,4 +12,20 @@
         </field>
     </record>
 
+    <record id="view_res_country_city_better_zip_form" model="ir.ui.view">
+        <field name="model">res.country</field>
+        <field name="inherit_id" ref="base.view_country_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//div[hasclass('oe_button_box')]" position="inside">
+                <button name="%(action_zip_tree)d"
+                    class="oe_stat_button"
+                    icon="fa-globe"
+                    type="action"
+                    context="{'default_country_id': active_id, 'search_default_country_id': active_id}"
+                    string="Locations">
+                </button>
+            </xpath>
+        </field>
+    </record>
+
 </odoo>