[FIX] web: pivot: correctly save and restore groupbys on rows and cols

On a pivot view expand a field in column
another one in row
Then put a domain in the search view
Save the whole thing (ir.filter) as favorite

Before this commit, the ir.filter was not saved the right way when a domain was present
(Let alone its restoration)
This was because of
- the internal default groupbys of the pivot model was not updated, and what we got in the params was overwritten
by what existed before
- a slight typo in the code made the row updated with the col values

OPW 1835865
OPW 1829925

closes #24215

addons/web/static/src/js/views/pivot/pivot_model.js

@@ -250,6 +250,7 @@ var PivotModel = AbstractModel.extend({
             this.data.colGroupBys = params.context.pivot_column_groupby || this.data.colGroupBys;
             this.data.groupedBy = params.context.pivot_row_groupby || this.data.groupedBy;
             this.data.measures = this._processMeasures(params.context.pivot_measures) || this.data.measures;
+            this.defaultGroupedBy = this.data.groupedBy.length ? this.data.groupedBy : this.defaultGroupedBy;
         }
         if ('domain' in params) {
             this.data.domain = params.domain;
@@ -278,7 +279,7 @@ var PivotModel = AbstractModel.extend({
 
             self._updateTree(old_col_root, self.data.main_col.root);
             new_groupby_length = self._getHeaderDepth(self.data.main_col.root) - 1;
-            self.data.main_row.groupbys = old_col_root.groupbys.slice(0, new_groupby_length);
+            self.data.main_row.groupbys = old_row_root.groupbys.slice(0, new_groupby_length);
         });
     },
     /**

addons/web/static/tests/views/pivot_tests.js

@@ -960,4 +960,45 @@ QUnit.module('Views', {
 
         pivot.destroy();
     });
+
+    QUnit.test('Row and column groupbys plus a domain', function (assert) {
+        assert.expect(3);
+
+        var pivot = createView({
+            View: PivotView,
+            model: "partner",
+            data: this.data,
+            arch: '<pivot>' +
+                        '<field name="foo" type="measure"/>' +
+                '</pivot>',
+        });
+
+        // Set a column groupby
+        pivot.$('thead .o_pivot_header_cell_closed').click();
+        pivot.$('.o_field_selection li[data-field=customer] a').click();
+
+        // Set a Row groupby
+        pivot.$('tbody .o_pivot_header_cell_closed').click();
+        pivot.$('.o_pivot_field_menu li[data-field=product_id] a').click();
+
+        // Set a domain
+        pivot.update({domain: [['product_id', '=', 41]]});
+
+        var expectedContext = {pivot_column_groupby: ['customer'],
+                               pivot_measures: ['foo'],
+                               pivot_row_groupby: ['product_id']};
+
+        // Mock 'save as favorite'
+        assert.deepEqual(pivot.getContext(), expectedContext,
+            'The pivot view should have the right context');
+
+        var $xpadHeader = pivot.$('tbody .o_pivot_header_cell_closed[data-original-title=Product]');
+        assert.equal($xpadHeader.length, 1,
+            'There should be only one product line because of the domain');
+
+        assert.equal($xpadHeader.text(), 'xpad',
+            'The product should be the right one');
+
+        pivot.destroy();
+    });
 });});