The templates tree rendered a derived/composed member (e.g. LeftReactorSide,
derived from ReactorSide) as a flat leaf, omitting compositions it inherits
from its base (e.g. LeakTest composed onto ReactorSide). BuildCompositionLeavesFor
recursed only over a template's OWN composition rows; an inherited composition
row lives on the ancestor, and TemplateComposition has no IsInherited placeholder
(unlike attributes/alarms/scripts/native-sources), so the child's own Compositions
was empty. Same 'derived templates don't surface inherited members' family as
followups #1/#2, but for compositions. Deploy/flatten was always correct
(TemplateResolver.ResolveAllMembers walks the chain) — display-only.
Fix:
- BuildCompositionLeavesFor now renders the EFFECTIVE composition set (own +
inherited) via EffectiveCompositionsFor, which walks the inheritance chain
(leaf->root, child wins on InstanceName), mirroring the resolver.
- Inherited slots are flagged (TemplateTreeNode.IsInherited), badged 'inherited'
in the label, and their context menu offers only 'Open composed template'
(Rename/Delete edit the ancestor's slot, so suppressed on inherited nodes).
- The same inherited row can appear under several derived members (LeakTest under
both LeftReactorSide and RightReactorSide), so composition nodes use a
path-qualified KeyOverride to keep TreeView selection/expansion keys unique;
recursion is cycle-guarded.
Tests: +1 bUnit (TemplatesPageTests.Renders_InheritedComposition_UnderDerivedComposedMember);
CentralUI suite 867 green; full solution builds 0/0.
Docs: Component-CentralUI.md (effective composition set in tree); known-issues
tracker #9 recorded + resolved.
Note: CentralUI change — shows on wonder-app-vd03 only after that host is redeployed.
Closes the four remaining items in the 2026-06-24 template-inheritance/CLI
follow-up tracker.
#4 — CLI `instance set-bindings` can now set DataSourceReferenceOverride.
`--bindings` accepts an optional 3rd element per entry:
[attributeName, dataConnectionId, dataSourceReferenceOverride]. A string
sets the override; a JSON null or an omitted 3rd element leaves it unset
(template default). TryParseBindings accepts 2- or 3-element entries and
rejects a non-string/non-null 3rd element or 4+ elements with a clean
error. Previously the CLI sent the override as null and silently wiped any
existing one (only a raw POST /management could set it).
#5 — `template update` is partial, not full-replace (fixed server-side so all
clients benefit). UpdateTemplateAsync now uses leave-unchanged semantics:
a null description keeps the stored value (pass "" to clear); a null
parentTemplateId keeps the existing parent. Parent stays immutable — a
non-null differing value is still rejected — but omitting --parent-id is
now a no-op instead of failing every derived-template update.
#6 — compact `template list`/`get` table output + `--detail`. Table output is
now id/name/description/parent/derived + member counts (#attrs/#alarms/
#scripts/#comps/#nativeAlarms) via TemplateTableProjection, fed through a
new optional tableProjector seam on CommandHelpers. `--detail` restores the
full dump. JSON output is left untouched (always full) so machine consumers
are unaffected — the projector only runs on the table path.
#8 — structured deploy-time validation error. New ValidationResult.SummarizeErrors()
(Commons) returns a grouped, capped summary: leading total count, one line
per ValidationCategory, and a per-module rollup (canonical name up to its
last dot) with counts + "... and N more module(s)" caps. DeploymentService
uses it for the "Pre-deployment validation failed" message and logs the full
per-entry list via LogWarning. Replaces the flat semicolon-joined dump that
became a wall of text for instances with 50-194 unbound attributes.
Tests: +8 Commons (SummarizeErrors), +8 CLI (4 binding 3-element / 4 table
projection), +2 net TemplateEngine (partial-update). Affected suites green:
Commons 587, CLI 341, TemplateEngine 447, DeploymentManager 101,
ManagementService 230, CentralUI 866; full solution builds 0/0.
Docs: Component-DeploymentManager.md "Validation Error Reporting"; CLI README
(set-bindings 3-element form, template update leave-unchanged, list/get
--detail); UpdateTemplateCommand doc; known-issues tracker #4/#5/#6/#8 resolved
(all 8 items now closed).
Derived templates store IsInherited placeholder rows mirroring inherited
members, but a base member added/changed/removed AFTER a child was derived
never reached the child — leaving the editor's editable tabs incomplete (#1)
and stored rows drifted from the resolved set (#2).
Fix (one order-independent reconcile, two entry points):
- Auto-propagation: every attribute/alarm/script add/update/delete now
reconciles the template's derived subtree (TemplateService.ReconcileDescendantsAsync),
hooked into all member-mutating paths incl. native-alarm-source CRUD in the
ManagementActor.
- Resync: ResyncInheritedMembersAsync repairs a template + its subtree on
demand — materialize missing placeholders, re-sync drifted ones, remove
orphans, across attributes/alarms/scripts/native sources. Exposed as
management ResyncInheritedMembersCommand (Designer-gated, audited) → CLI
`template resync-members` → a Resync button on the editor's staleness banner.
Reconcile drives off TemplateInheritanceResolver (same precedence + HiLo merge
as deploy), only ever touches IsInherited placeholders (never an authored
override), and matches the staleness comparison keys so the banner clears.
BuildDerivedTemplate now also materializes native-source placeholders at
compose time (previously omitted → any inherited native source was perpetually
stale).
Tests: +8 TemplateServiceTests (materialize / drift-update / orphan-remove /
override-untouched / base-cascade / multi-type / direct-propagate / end-to-end
add) + 1 ManagementService test fix (native-source add resolves TemplateService).
Affected suites green: TemplateEngine 446, ManagementService 230, CentralUI 866,
CLI 333, Transport 127, ConfigurationDatabase 307; full solution builds 0/0.
Docs: Component-TemplateEngine.md "Inherited-Member Propagation & Resync";
CLI README `template resync-members`; known-issues tracker #1/#2 resolved.
#3 — CollisionDetector counted a derived template's IsInherited placeholder
rows as a distinct origin from the parent members the inheritance walk
re-adds, reporting a spurious "Naming collision" for every inherited row and
blocking any attribute/composition add to a derived template. CollectDirectMembers
now skips IsInherited rows on the direct-template and inherited-parent walks;
it keeps them for the composed-module walk, where placeholders are the sole
representation of a derived module's inherited members (that walk does not
climb the composed template's parent chain).
#7 — SandboxAttributeAccessor (Central UI Test-Run host) omitted
WriteBatchAndWaitAsync / WaitAsync / WaitForAsync, so the editor false-flagged
valid instance scripts with CS1061 even though `template validate` and the
deploy gate accept them. Added the five overloads mirroring the runtime
AttributeAccessor; they throw a labelled ScriptSandboxException if run in
Test Run (the central sandbox has no device-batch / event-waiter transport).
Tests: +3 CollisionDetector unit + 1 end-to-end TemplateService (derived add
now succeeds); +2 ScriptAnalysisService diagnose-clean. Each new test verified
to fail without its fix with the exact user-facing symptom. Full suites green
(TemplateEngine.Tests 438, CentralUI.Tests 866).
Docs: Component-TemplateEngine.md (inherited-placeholder collision rule),
Component-ScriptAnalysis.md (third sandbox surface + its compile-clean guard),
known-issues tracker #3/#7 marked resolved and the minor note promoted to #8.
Joseph Doherty