[FIX] web: wait onchanges to be processed before save

addons/web/static/src/js/view_form.js

@@ -103,6 +103,7 @@ instance.web.FormView = instance.web.View.extend(instance.web.form.FieldManagerM
         this.fields_order = [];
         this.datarecord = {};
         this._onchange_specs = {};
+        this.onchanges_defs = [];
         this.default_focus_field = null;
         this.default_focus_button = null;
         this.fields_registry = instance.web.form.widgets;
@@ -507,7 +508,7 @@ instance.web.FormView = instance.web.View.extend(instance.web.form.FieldManagerM
                 def = self.alive(new instance.web.Model(self.dataset.model).call(
                     "onchange", [ids, values, trigger_field_name, onchange_specs, context]));
             }
-            return def.then(function(response) {
+            var onchange_def = def.then(function(response) {
                 if (widget && widget.field['change_default']) {
                     var fieldname = widget.name;
                     var value_;
@@ -543,6 +544,8 @@ instance.web.FormView = instance.web.View.extend(instance.web.form.FieldManagerM
             }).then(function(response) {
                 return self.on_processed_onchange(response);
             });
+            this.onchanges_defs.push(onchange_def);
+            return onchange_def;
         } catch(e) {
             console.error(e);
             instance.webclient.crashmanager.show_message(e);
@@ -642,6 +645,7 @@ instance.web.FormView = instance.web.View.extend(instance.web.form.FieldManagerM
      * if the current record is not yet saved. It will then stay in create mode.
      */
     to_edit_mode: function() {
+        this.onchanges_defs = [];
         this._actualize_mode("edit");
     },
     /**
@@ -790,12 +794,14 @@ instance.web.FormView = instance.web.View.extend(instance.web.form.FieldManagerM
         var self = this;
         var save_obj = {prepend_on_create: prepend_on_create, ret: null};
         this.save_list.push(save_obj);
-        return this._process_operations().then(function() {
-            if (save_obj.error)
-                return $.Deferred().reject();
-            return $.when.apply($, save_obj.ret);
-        }).done(function() {
-            self.$el.removeClass('oe_form_dirty');
+        return $.when.apply($, self.onchanges_defs).then(function(){
+            return self._process_operations().then(function() {
+                if (save_obj.error)
+                    return $.Deferred().reject();
+                return $.when.apply($, save_obj.ret);
+            }).done(function() {
+                self.$el.removeClass('oe_form_dirty');
+            });
         });
     },
     _process_save: function(save_obj) {

addons/web/static/test/list-editable.js

@@ -6,6 +6,9 @@ openerp.testing.section('editor', {
         mock('test.model:create', function () {
             return 42;
         });
+        mock('test.model:onchange', function () {
+            return {};
+        });
     }
 }, function (test) {
     /**
@@ -203,6 +206,9 @@ openerp.testing.section('list.edition', {
                 arch: '<tree><field name="a"/><field name="b"/><field name="c"/></tree>',
             };
         });
+        mock('demo:onchange', function () {
+            return {};
+        });
     }
 }, function (test) {
     test('newrecord', {asserts: 6}, function (instance, $fix, mock) {
@@ -311,6 +317,11 @@ openerp.testing.section('list.edition.onwrite', {
     dependencies: ['web.list_editable'],
     rpc: 'mock',
     templates: true,
+    setup: function (instance, $s, mock) {
+        mock('demo:onchange', function () {
+            return {};
+        });
+    }
 }, function (test) {
     test('record-to-read', {asserts: 4}, function (instance, $fix, mock) {
         mock('demo:fields_view_get', function () {