[FIX] Makes the module compatible with Odoo community

Author: lmignon

web_m2x_options/static/src/js/form.js

@@ -19,6 +19,11 @@ odoo.define('web_m2x_options.web_m2x_options', function (require) {
                    'web_m2x_options.search_more',
                    'web_m2x_options.m2o_dialog',];
 
+    // In odoo 9.c FielMany2One is not exposed by form_relational
+    // To bypass this limitation we use the widget registry to get the
+    // reference to the FielMany2One widget.
+    var FieldMany2One = core.form_widget_registry.get('many2one');
+
     var M2ODialog = Dialog.extend({
         template: "M2ODialog",
         init: function(parent) {
@@ -52,7 +57,7 @@ odoo.define('web_m2x_options.web_m2x_options', function (require) {
         },
     });
 
-    form_relational.FieldMany2One.include({
+    FieldMany2One.include({
 
         start: function() {
             this._super.apply(this, arguments);