⚡ default record for existing models in reference field

base_details/__manifest__.py

@@ -21,6 +21,7 @@
     ],
     "external_dependencies": {"python": [], "bin": []},
     "data": [
+        'views/assets.xml'
     ],
     "qweb": [
     ],

base_details/models/base_details.py

@@ -38,6 +38,7 @@ def details(self):
     def onchange_details_model(self):
         if self.details_model and self.details_model in [x.model for x in self.env['ir.model'].search([])]:
             self.details_model_exists = True
+            self.details_model_record = self.env[self.details_model].search([], limit=1)
         else:
             self.details_model_exists = False
 

base_details/static/src/js/FieldReference.js

@@ -0,0 +1,13 @@
+odoo.define('base_details', function(require) {
+    'use strict';
+
+    var FieldReference = require('web.relational_fields').FieldReference;
+
+    var FieldReference = FieldReference.include({
+        _reset: function () {
+            this._super.apply(this, arguments);
+            this._setState();
+        },
+    });
+
+});

base_details/views/assets.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--Copyright 2018 Kolushov Alexandr <https://it-projects.info/team/KolushovAlexandr>
+    License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl.html). -->
+<odoo>
+    <template id="assets_backend" name="base_details_assets" inherit_id="web.assets_backend">
+        <xpath expr="." position="inside">
+            <script type="text/javascript" src="/base_details/static/src/js/FieldReference.js"></script>
+        </xpath>
+    </template>
+</odoo>