[ADD] New module: pos_save_client_error_fix

The PoS displays a generic error message when an error occurs while
creating users.

This module improves the error handling providing a useful message
to the end user.

pos_save_client_error_fix/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
+
+==============
+POS Save Client Error Message FIX
+==============
+
+This module extends the functionality of POS and displays the error message returned by the server rather than "Your Internet connection is probably down.".
+
+
+Installation
+============
+
+This module depends on the point_of_sale Odoo official module.
+
+
+Configuration
+=============
+
+No configuration is needed.
+
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues
+<https://github.com/OCA/{project_repo}/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.
+
+Credits
+=======
+
+Images
+------
+
+* Odoo Community Association: `Icon <https://github.com/OCA/maintainer-tools/blob/master/template/module/static/description/icon.svg>`_.
+
+Contributors
+------------
+
+* Jose Zambudio Bernabeu <jose.zambudio@diagram.es>
+
+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.

pos_save_client_error_fix/__init__.py

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+# -*- coding: utf-8 -*-
+# © 2016 Diagram Software S.L.
+# License AGPL-3 - See http://www.gnu.org/licenses/agpl-3.0.html

pos_save_client_error_fix/__openerp__.py

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+# -*- coding: utf-8 -*-
+# © 2016 Diagram Software S.L.
+# License AGPL-3 - See http://www.gnu.org/licenses/agpl-3.0.html
+
+{
+    "name": "POS save client error FIX",
+    "summary": "Displays the error message returned by the server.",
+    "version": "8.0.1.0.0",
+    "category": "Point Of Sale",
+    "author": "Diagram Software S.L., "
+              "Odoo Community Association (OCA)",
+    "license": "AGPL-3",
+    "application": False,
+    "installable": True,
+    "depends": [
+        "point_of_sale",
+    ],
+    "data": [
+        "views/assets.xml",
+    ],
+}

pos_save_client_error_fix/static/src/js/pos_save_client_error_fix.js

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+/* © 2016 Diagram Software S.L.
+ * License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). */
+
+(function ($) {
+    "use strict";
+    openerp.pos_save_client_error_fix = function (instance, module) {
+        var _t = instance.web._t;
+        var pos = instance.point_of_sale;
+
+        pos.ClientListScreenWidget = pos.ClientListScreenWidget.extend({
+            save_client_details: function(partner) {
+                var self = this;
+
+                var fields = {};
+                this.$('.client-details-contents .detail').each(function(idx,el){
+                    fields[el.name] = el.value;
+                });
+
+                if (!fields.name) {
+                    this.pos_widget.screen_selector.show_popup('error',{
+                        message: _t('A Customer Name Is Required'),
+                    });
+                    return;
+                }
+
+                if (this.uploaded_picture) {
+                    fields.image = this.uploaded_picture;
+                }
+
+                fields.id           = partner.id || false;
+                fields.country_id   = fields.country_id || false;
+                fields.ean13        = fields.ean13 ? this.pos.barcode_reader.sanitize_ean(fields.ean13) : false;
+
+                new instance.web.Model('res.partner').call('create_from_ui',[fields]).then(function(partner_id){
+                    self.saved_client_details(partner_id);
+                },function(err,event){
+                    event.preventDefault();
+                    self.pos_widget.screen_selector.show_popup('error',{
+                        'message': _t('Error: Could not Save Changes'),
+                        'comment': err.data["arguments"][1],
+                    });
+                });
+            },
+        });
+    };
+})(jQuery);

pos_save_client_error_fix/views/assets.xml

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+<openerp>
+<data>
+
+    <template id="pos_save_client_error_fix_assets" name="pos_save_client_error_fix assets" inherit_id="web.assets_backend">
+        <xpath expr="." position="inside">
+            <script type="text/javascript" src="/pos_save_client_error_fix/static/src/js/pos_save_client_error_fix.js"></script>
+        </xpath>
+    </template>
+
+</data>
+</openerp>