[ADD] web_widget_radio_tree: widget to use input radio in a tree view inside a form, in order to allow mark only one record

web_widget_radio_tree/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
+
+=====================
+Web widget radio tree
+=====================
+
+This module allows to use input radio in a tree view inside a form, in order to ensure the user marks only one record.
+
+Example: You have a partner company from with many contacts. The contacts are shown in a tree and you want to specify only one as preferred.
+
+Usage
+=====
+
+In the view declaration, put widget='radio_tree' attribute in the field tag::
+
+    ...
+    <field name="arch" type="xml">
+        <form>
+            ...
+            <field name="name" />
+            <field name="contact_ids">
+                <tree string="View name">
+                    ...
+                    <field name="name"/>
+                    <field name="preferred" widget="radio_tree"/>
+                    ...
+                </tree>
+            </field>
+        </form>
+    </field>
+    ...
+
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues
+<https://github.com/OCA/web/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/
+web/issues/new?body=module:%20
+web_qweb_diff%0Aversion:%20
+9.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+
+Credits
+=======
+
+Images
+------
+
+* Odoo Community Association: `Icon <https://github.com/OCA/maintainer-tools/blob/master/template/module/static/description/icon.svg>`_.
+
+Contributors
+------------
+
+* Cesar Lage <kaerdsar@gmail.com>
+* Robert Rübner <rruebner@bloopark.de>
+
+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.

web_widget_radio_tree/__init__.py

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+# -*- coding: utf-8 -*-
+##############################################################################
+#
+# Odoo, an open source suite of business apps
+# This module copyright (C) 2015 bloopark systems (<http://bloopark.de>).
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################

web_widget_radio_tree/__openerp__.py

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+# -*- coding: utf-8 -*-
+##############################################################################
+#
+# Odoo, an open source suite of business apps
+# This module copyright (C) 2015 bloopark systems (<http://bloopark.de>).
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+{
+    'name': "Web Widget Radio Tree",
+    'summary': """Add radio buttons for records in tree.""",
+    'author': "bloopark systems GmbH & Co. KG",
+    'website': "http://www.bloopark.de",
+    'category': 'web',
+    'version': '1.0',
+    'depends': [
+        'web',
+    ],
+    'data': [
+        'views/assets.xml',
+    ],
+    'qweb': [
+        'static/src/xml/widget.xml',
+    ],
+    'installable': True,
+    'auto_install': False,
+}

web_widget_radio_tree/static/src/js/widget.js

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+openerp.web_widget_radio_tree = function (instance) {
+
+    var QWeb = instance.web.qweb;
+
+    instance.web.list.columns.add('field.radio_tree', 'instance.web.list.RadioTreeColumn');
+
+    instance.web.list.RadioTreeColumn = instance.web.list.Column.extend({
+        _format: function (row_data, options) {
+            var name = options.model + '_' + this.id;
+            return _.template(
+                '<input type="radio" name="<%-name%>" <%-checked%> readonly="readonly"></input>', {
+                    name: name,
+                    checked: row_data[this.id].value ? 'checked' : '',
+                });
+        }
+    });
+
+    instance.web.form.widgets.add('radio_tree', 'instance.web.form.RadioTree');
+
+    instance.web.form.RadioTree = instance.web.form.FieldBoolean.extend({
+        template: 'RadioTree',
+        start: function() {
+            var self = this;
+            this.$checkbox = $('input', this.$el);
+            var radio_name = this.__parentedParent.model + '_' + this.$checkbox[0].name;
+            this.$checkbox.attr('name', radio_name);
+            this.setupFocus(this.$checkbox);
+            this.$el.click(_.bind(function() {
+                self.clean_radio_in_records();
+                this.internal_set_value(true);
+            }, this));
+            var check_readonly = function() {
+                self.$checkbox.prop('disabled', self.get('effective_readonly'));
+                self.click_disabled_boolean();
+            };
+            this.on('change:effective_readonly', this, check_readonly);
+            check_readonly.call(this);
+            this._super.apply(this, arguments);
+        },
+        click_disabled_boolean: function(){
+            var $disabled = this.$el.find('input[type=radio]:disabled');
+            $disabled.each(function (){
+                $(this).next('div').remove();
+                $(this).closest('span').append($('<div class="boolean"></div>'));
+            });
+        },
+        clean_radio_in_records: function() {
+            var name = (this.$checkbox[0].name).split('_')[1];
+            var ids = this.__parentedParent.dataset.ids;
+            var current_id = this.__parentedParent.datarecord.id;
+
+            // updating write hash
+            var already_added = [];
+            var to_write = this.__parentedParent.dataset.to_write;
+            for (var j=0; j<to_write.length; ++j) {
+                if (to_write[j]['id'] == current_id) {
+                    to_write[j]['values'][name] = true;
+                }
+                else {
+                    to_write[j]['values'][name] = false;
+                }
+                if (ids.includes(to_write[j]['id'])) {
+                    already_added.push(to_write[j]['id']);
+                }
+            }
+            for (var j=0; j<ids.length; ++j) {
+                if (!already_added.includes(ids[j]) && ids[j] != current_id) {
+                    values = {};
+                    values[name] = false;
+                    this.__parentedParent.dataset.to_write.push({
+                        id: ids[j],
+                        values: values
+                    });
+                }
+            }
+
+            // updating create hash
+            var to_create = this.__parentedParent.dataset.to_create;
+            for (var j=0; j<to_create.length; ++j) {
+                if (to_create[j]['id'] == current_id) {
+                    to_create[j]['values'][name] = true;
+                }
+                else {
+                    to_create[j]['values'][name] = false;
+                }
+            }
+        }
+    });
+
+};

web_widget_radio_tree/static/src/xml/widget.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<templates>
+    <t t-name="RadioTree">
+        <span class="oe_form_field oe_form_field_boolean oe_form_field_boolean_radio"
+              t-att-style="widget.node.attrs.style">
+            <input type="radio"
+                t-att-id="widget.id_for_label"
+                t-att-name="widget.name"
+                t-att-tabindex="widget.node.attrs.tabindex"
+                t-att-autofocus="widget.node.attrs.autofocus"
+                class="field_boolean"/>
+        </span>
+    </t>
+</templates>

web_widget_radio_tree/views/assets.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<openerp>
+    <data>
+        <template id="assets_backend" name="web_widget_radio_tree" inherit_id="web.assets_backend">
+            <xpath expr="." position="inside">
+                <script type="text/javascript" src="/web_widget_radio_tree/static/src/js/widget.js"></script>
+            </xpath>
+        </template>
+    </data>
+</openerp>