From b82209b458661bb430400f6ec618861e75581eea Mon Sep 17 00:00:00 2001
From: George Gevoian <george@gevoian.com>
Date: Mon, 15 Jan 2024 14:24:51 -0800
Subject: [PATCH] (core) Fix filtering regression

Summary:
Fixes a recent regression that would cause a record to be erroneously filtered
out whenever it was updated from a linked view.

Test Plan: Browser test.

Reviewers: jarek

Reviewed By: jarek

Differential Revision: https://phab.getgrist.com/D4163
---
 app/client/components/BaseView.js            |   6 +--
 app/client/models/SectionFilter.ts           |   8 +---
 app/client/models/rowset.ts                  |   2 +
 test/fixtures/docs/ExemptFromFilterBug.grist | Bin 0 -> 176128 bytes
 test/nbrowser/FilteringBugs.ts               |  42 +++++++++++++++++++
 5 files changed, 47 insertions(+), 11 deletions(-)
 create mode 100644 test/fixtures/docs/ExemptFromFilterBug.grist
 create mode 100644 test/nbrowser/FilteringBugs.ts

diff --git a/app/client/components/BaseView.js b/app/client/components/BaseView.js
index b91bb1af..5539a765 100644
--- a/app/client/components/BaseView.js
+++ b/app/client/components/BaseView.js
@@ -79,13 +79,11 @@ function BaseView(gristDoc, viewSectionModel, options) {
 
   // Create a section filter and a filtered row source that subscribes to its changes.
   // `sectionFilter` also provides `setFilterOverride()` to allow controlling a filter from a column menu.
-  // Whenever changes are made to filters, exempt rows are reset.
-  this._sectionFilter = SectionFilter.create(
-    this, this.viewSection, this.tableModel.tableData, () => this._exemptFromFilterRows.reset()
-  );
+  this._sectionFilter = SectionFilter.create(this, this.viewSection, this.tableModel.tableData);
   this._filteredRowSource = rowset.FilteredRowSource.create(this, this._sectionFilter.sectionFilterFunc.get());
   this._filteredRowSource.subscribeTo(this._mainRowSource);
   this.autoDispose(this._sectionFilter.sectionFilterFunc.addListener(filterFunc => {
+    this._exemptFromFilterRows.reset();
     this._filteredRowSource.updateFilter(filterFunc);
   }));
 
diff --git a/app/client/models/SectionFilter.ts b/app/client/models/SectionFilter.ts
index fa38194d..4f34cc4a 100644
--- a/app/client/models/SectionFilter.ts
+++ b/app/client/models/SectionFilter.ts
@@ -28,11 +28,7 @@ export class SectionFilter extends Disposable {
 
   private _openFilterOverride: Observable<OpenColumnFilter|null> = Observable.create(this, null);
 
-  constructor(
-    public viewSection: ViewSectionRec,
-    private _tableData: TableData,
-    private _resetExemptRows: () => void,
-  ) {
+  constructor(public viewSection: ViewSectionRec, private _tableData: TableData) {
     super();
 
     this.sectionFilterFunc = Computed.create(this, this._openFilterOverride, (use, openFilter) => {
@@ -65,10 +61,8 @@ export class SectionFilter extends Disposable {
    * Builds a filter function that combines the filter function of all the columns. You can use
    * `getFilterFunc(column, colFilter)` to customize the filter func for each column. It calls
    * `getFilterFunc` right away.
-   * This also immediately resets rows that were temporarily exempted from filtering.
    */
   public buildFilterFunc(getFilterFunc: ColFilterCB, use: UseCB) {
-    this._resetExemptRows();
     const filters = use(this.viewSection.filters);
     const funcs: Array<RowFilterFunc<UIRowId> | null> = filters.map(({filter, fieldOrColumn}) => {
       const colFilter = buildColFilter(use(filter), use(use(fieldOrColumn.origCol).type));
diff --git a/app/client/models/rowset.ts b/app/client/models/rowset.ts
index c2d5960a..44b3ac56 100644
--- a/app/client/models/rowset.ts
+++ b/app/client/models/rowset.ts
@@ -802,4 +802,6 @@ export class ExemptFromFilterRowSource extends BaseFilteredRowSource {
   public reset() {
     this.onRemoveRows(this.getAllRows());
   }
+
+  public onUpdateRows() { /* no-op */ }
 }
diff --git a/test/fixtures/docs/ExemptFromFilterBug.grist b/test/fixtures/docs/ExemptFromFilterBug.grist
new file mode 100644
index 0000000000000000000000000000000000000000..1fb0d80353d49165ec06b7e9caa902bf45e4b657
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diff --git a/test/nbrowser/FilteringBugs.ts b/test/nbrowser/FilteringBugs.ts
new file mode 100644
index 00000000..5742f380
--- /dev/null
+++ b/test/nbrowser/FilteringBugs.ts
@@ -0,0 +1,42 @@
+import {assert, Key} from 'mocha-webdriver';
+import * as gu from 'test/nbrowser/gristUtils';
+import {setupTestSuite} from 'test/nbrowser/testUtils';
+
+describe('FilteringBugs', function() {
+  this.timeout(20000);
+  const cleanup = setupTestSuite();
+  let session: gu.Session;
+
+  afterEach(() => gu.checkForErrors());
+
+  before(async function() {
+    session = await gu.session().login();
+  });
+
+  it('should not filter records edited from another view', async function() {
+    await session.tempDoc(cleanup, 'ExemptFromFilterBug.grist');
+
+    // Change column A of the first record from foo to bar; bar should still be
+    // visible, even though it's excluded by a filter.
+    await gu.getCell({section: 'TABLE2 Filtered', rowNum: 1, col: 'A'}).click();
+    await gu.sendKeys(Key.ENTER, Key.ARROW_DOWN, Key.ENTER);
+    await gu.waitForServer();
+    assert.deepEqual(
+      await gu.getVisibleGridCells({section: 'TABLE2 Filtered', col: 'A', rowNums: [1, 2, 3]}),
+      ['bar', 'foo', '']
+    );
+
+    // With the same record selected, change column C in the linked card section.
+    await gu.getCell({section: 'TABLE2 Filtered', rowNum: 1, col: 'A'}).click();
+    await gu.getCardCell('C', 'TABLE2 Card').click();
+    await gu.sendKeys('2', Key.ENTER);
+    await gu.waitForServer();
+
+    // Check that the record is still visible in the first section. Previously, a
+    // regression caused it to be filtered out.
+    assert.deepEqual(
+      await gu.getVisibleGridCells({section: 'TABLE2 Filtered', col: 'A', rowNums: [1, 2, 3]}),
+      ['bar', 'foo', '']
+    );
+  });
+});