[FIX] web: multiedit in a grouped list view: enable fetchBatchedM2O and References

Have grouped list with reference a m2o or a reference field

Select some records, edit them

Before this commit: the names of the reference fields and m2o disappeared

That was because the saveRecords function did not take into account a grouped list

manual forward port of #65999

After this commit: it works as expected

closes odoo/odoo#66043

closes odoo/odoo#66140

Signed-off-by: Lucas Perais (lpe) <lpe@odoo.com>

2 files changed, 87 insertions, 4 deletions

diff --git a/addons/web/static/src/js/views/list/list_model.js b/addons/web/static/src/js/views/list/list_model.js
index 5d40343ef8d..5a8771c0da3 100644
--- a/addons/web/static/src/js/views/list/list_model.js
+++ b/addons/web/static/src/js/views/list/list_model.js
@@ -82,10 +82,17 @@ odoo.define('web.ListModel', function (require) {
                     self._parseServerData(fieldNames, record, record.data);
                 });
             }).then(function () {
-                return Promise.all([
-                    self._fetchX2ManysBatched(list),
-                    self._fetchReferencesBatched(list)
-                ]);
+                if (!list.groupedBy.length) {
+                    return Promise.all([
+                        self._fetchX2ManysBatched(list),
+                        self._fetchReferencesBatched(list)
+                    ]);
+                } else {
+                    return Promise.all([
+                        self._fetchX2ManysSingleBatch(list),
+                        self._fetchReferencesSingleBatch(list)
+                    ]);
+                }
             });
         },
 
diff --git a/addons/web/static/tests/views/list_tests.js b/addons/web/static/tests/views/list_tests.js
index 5c30d59593c..481ec86a6e8 100644
--- a/addons/web/static/tests/views/list_tests.js
+++ b/addons/web/static/tests/views/list_tests.js
@@ -7250,6 +7250,82 @@ QUnit.module('Views', {
         list.destroy();
     });
 
+    QUnit.test('multi edit reference field batched in grouped list', async function (assert) {
+        assert.expect(18);
+
+        this.data.foo.records= [
+            // group 1
+            {id: 1, foo: '1', reference: 'bar,1'},
+            {id: 2, foo: '1', reference: 'bar,2'},
+            //group 2
+            {id: 3, foo: '2', reference: 'res_currency,1'},
+            {id: 4, foo: '2', reference: 'bar,2'},
+            {id: 5, foo: '2', reference: 'bar,3'},
+        ];
+        // Field boolean_toggle just to simplify the test flow
+        let nameGetCount = 0;
+        const list = await createView({
+            View: ListView,
+            model: 'foo',
+            data: this.data,
+            arch: `<tree expand="1" multi_edit="1">
+                       <field name="foo" invisible="1"/>
+                       <field name="bar" widget="boolean_toggle"/>
+                       <field name="reference"/>
+                   </tree>`,
+            groupBy: ['foo'],
+            mockRPC: function (route, args) {
+                assert.step(args.method || route);
+                if (args.method === 'write') {
+                    assert.deepEqual(args.args, [[1,2,3], {bar: true}]);
+                }
+                if (args.method === 'name_get') {
+                    if (nameGetCount === 2) {
+                        assert.strictEqual(args.model, 'bar');
+                        assert.deepEqual(args.args[0], [1,2]);
+                    }
+                    if (nameGetCount === 3) {
+                        assert.strictEqual(args.model, 'res_currency');
+                        assert.deepEqual(args.args[0], [1]);
+                    }
+                    nameGetCount++;
+                }
+                return this._super.apply(this, arguments);
+            },
+        });
+
+        assert.verifySteps([
+            'web_read_group',
+            'name_get',
+            'name_get',
+        ]);
+        await testUtils.dom.click(list.$('.o_data_row .o_list_record_selector input')[0]);
+        await testUtils.dom.click(list.$('.o_data_row .o_list_record_selector input')[1]);
+        await testUtils.dom.click(list.$('.o_data_row .o_list_record_selector input')[2]);
+        await testUtils.dom.click(list.$('.o_data_row .o_field_boolean')[0]);
+        assert.containsOnce(document.body, '.modal');
+        await testUtils.dom.click($('.modal .modal-footer .btn-primary'));
+        assert.containsNone(document.body, '.modal');
+        assert.verifySteps([
+            'write',
+            'read',
+            'name_get',
+            'name_get',
+        ]);
+        assert.containsN(list, '.o_group_header', 2);
+
+        const allNames = Array.from(list.el.querySelectorAll('.o_data_cell'))
+            .filter(node => !node.children.length).map(n=>n.textContent);
+        assert.deepEqual(allNames, [
+            'Value 1',
+            'Value 2',
+            'USD',
+            'Value 2',
+            'Value 3',
+        ]);
+        list.destroy();
+    });
+
     QUnit.test('editable list view: contexts are correctly sent', async function (assert) {
         assert.expect(6);