Issue: #1038 Status: IMPLEMENTED (2026-09-30) Screen: ASIDE → Test Specification → Test Case Viewer (gui/templates/testcases/tcView.html?tcase_id=<id>[&tcversion_id=<id>][&editOnExec=1]) BFF: api/testcases/index.php (action=view)

1.9.20 ends every version panel of the test case viewer with the "Test Case version Test Plan Assignment" block (gui/templates/dashio/testcases/tcView_viewer.tpl:599-605, same block in the older include/tcViewViewer.inc.tpl:627-632):

{if 'editOnExec' != $gui->show_mode &&
  $args_linked_versions != null && $tlCfg->spec_cfg->show_tplan_usage}
  {include file="{$tplConfig['quickexec.inc']}" args_edit_enabled=$edit_enabled}
{/if}

quickexec.inc.tpl renders a table — header test_plan_usage, columns version and sort_hint test_plan, plus sort_hint platform only when the project has platforms — with one row per (version, test plan, platform) link: the version number, the escaped plan name followed by an anchor ($execFeatureAction = lib/general/frmWorkArea.php?feature=executeTest, target="_parent", title=goto_execute, $tlImages.execute icon), and the platform name when $version_info.platform_id > 0.

The data came from testcase::get_linked_versions() (lib/functions/testcase.class.php:1706-1795, called at :1077-1079): testplan_tcversions joined to nodes_hierarchy for the plan name, filtered NH.parent_id = <tcase id>, returned as version → plan → platform → row.

The modern viewer had none of it: no section, and the view payload only carried the boolean hasTestPlans (needed for the "Add to Test Plan" button), so even the API could not answer "which plans is this version in?".

BFF — api/testcases/index.php, action=view

• new payload key tplanUsage = { enabled: bool, rows: [ … ] };
• rows[] = { tcversion_id, version, testplan_id, tplan_name, platform_id, platform_name } from one join over testplan_tcversions + nodes_hierarchy (version and plan nodes) + tcversions + platforms (LEFT JOIN, so a link without platform keeps its row with an empty platform cell), ordered by version then plan name;
• enabled reproduces the legacy gate: spec_cfg->show_tplan_usage (config.inc.php:1258, default TRUE) and the request is not an edit-on-execute request (editOnExec=1, legacy show_mode == 'editOnExec'), in which case the rows are left empty;
• a DB error degrades to rows: [] (the section simply disappears) instead of breaking the whole viewer payload.

Screen — gui/templates/testcases/tcView.html

• renderTplanUsage(v) builds the legacy table per version card, appended after the Attachments block, using the table.steps styling already used by the steps table; it returns an empty string when the version has no links, so no empty section is drawn (legacy behaviour for an empty map);
• columns: Version (existing tcview.version key), Test Plan (tcview.tplanUsagePlan) with the execute shortcut, and Platform (tcview.tplanUsagePlatform) rendered only when the project has platforms — the modern equivalent of legacy $gui->platforms != null, which is the already-present platformsProject payload key;
• the platform cell is empty for platform_id = 0 (legacy platform_id > 0 guard);
• the execute link points at /gui/templates/execute/execTest.html?feature=executeTest&tproject_id=<owning project>&tplan_id=<row plan> and opens in a new tab. This is the modern resolution of the legacy route (lib/general/frmWorkArea.php:42 maps executeTest to that screen) and, unlike legacy, carries the row's tplan_id — legacy omitted it and fell back to the session plan, so the shortcut could open a plan unrelated to the row;
• loadView() and platRefreshMain() now forward editOnExec, so the re-render after a platform assign/unassign keeps the legacy suppression.

i18n — 4 new keys (tcview.tplanUsage, tcview.tplanUsagePlan, tcview.tplanUsagePlatform, tcview.gotoExecute) appended to all 10 locale bundles (de, en, es, fr, it, ja, pt, ro, ru, zh); texts ported from the legacy locale/<L>/strings.txt entries testplan_usage, test_plan, platform, goto_execute.

Deliberate difference from legacy — legacy injected the whole link map of the test case into every version panel (duplicated N times for N versions); the modern screen lists each version's own rows in its own card, which is the same information without the duplication.

• tmp/verify_1038.sh → 21 PASS / 0 FAIL (payload shape, both platform branches, editOnExec gate, single-version request, unlinked case, unauthenticated / bad-id paths, all 10 bundles valid and complete).
• Browser (headless Chrome): both version cards show the section, the tables read 1 | TPU Plan One | Chrome/Linux and 2 | TPU Plan Two | (empty), the shortcut opens the row's own plan, ?locale=de renders TESTPLAN-NUTZUNG / Testplan / Plattform / Zur Ausführung, the unlinked case shows no section, console clean, 0 new Error/Warning rows in events.
• Suite 1038 in tmp/TLU_Test_Cases.md.