[IMP] contract: add section and notes in contract line

contract/static/description/index.html

@@ -425,6 +425,8 @@ To use it, just select the template on the contract and fields will be filled au
 <h1><a class="toc-backref" href="#id3">Known issues / Roadmap</a></h1>
 <ul class="simple">
 <li>Recover states and others functional fields in Contracts.</li>
+<li>Depending on the contract lines, some sections of contract
+line have no meaning that they are propagated to certain invoices</li>
 </ul>
 </div>
 <div class="section" id="bug-tracker">

contract/static/src/js/section_and_note_fields_backend.js

@@ -0,0 +1,38 @@
+/* Copyright 2020 Tecnativa - Ernesto Tejeda
+ * License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+ */
+/*
+    If in the sub-tree view where the sections and notes are to be used 
+there are fields that have defined in the XML attrs = {'invisible': ....} 
+and this condition is met, then an extra space appears in the rows 
+corresponding to the sections and lines.
+    This js was written to deal with that problem, but a solution based on 
+this can be applied directly to Odoo*/
+odoo.define('contract.section_and_note_backend', function (require) {
+    "use strict";
+
+    var fieldRegistry = require('web.field_registry');
+    var section_and_note_one2many = fieldRegistry.get('section_and_note_one2many');
+
+    section_and_note_one2many.include({
+        _getRenderer: function () {
+            var result = this._super.apply(this, arguments);
+            if (this.view.arch.tag === 'tree') {
+                result.include({
+                    _renderBodyCell: function (record, node, index, options) {
+                        var $cell = this._super.apply(this, arguments);
+
+                        var isSection = record.data.display_type === 'line_section';
+                        var isNote = record.data.display_type === 'line_note';
+
+                        if (isSection || isNote) {
+                            $cell.removeClass('o_invisible_modifier');
+                        }
+                        return $cell;
+                    }
+                })
+            }
+            return result
+        },
+    });
+});