feat(P3): IHF Phase 3 complete — Governance and Decision Linkage

Implements the full governance layer:
- Schema: requirements, decision_records, policy_references,
  implementation_change_references; requirement_candidates gets
  requirement_id back-reference
- RequirementsController (index/show; promotion-only create)
- DecisionRecordsController (CRUD + policy/impl ref management)
- GovernanceDashboardAction on HubsController (AutoRefresh)
- PromoteToRequirementAction + LinkToDecisionAction on candidates
- Outcome immutability enforced at controller level (fill excludes outcome)
- Full six-outcome vocabulary with Tailwind color roles
- Integration tests for all Phase 3 paths
- FrontController: registers Phase 2 missing controllers + all Phase 3
- SCOPE.md + docs/phase3-summary.md updated

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-03-29 10:38:50 +00:00
parent 840b0e5c7b
commit 7f9a8dd441
23 changed files with 2039 additions and 19 deletions

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@@ -0,0 +1,167 @@
module Web.Controller.DecisionRecords where
import Web.Types
import Web.View.DecisionRecords.Index
import Web.View.DecisionRecords.Show
import Web.View.DecisionRecords.New
import Web.View.DecisionRecords.Edit
import Generated.Types
import IHP.Prelude
import IHP.ControllerPrelude
validOutcomes :: [Text]
validOutcomes = ["accepted", "rejected", "deferred", "split", "merged", "reframed"]
validPolicyScopes :: [Text]
validPolicyScopes = ["internal", "external", "regulatory", "contractual", "architectural"]
validSystems :: [Text]
validSystems = ["github", "linear", "jira", "other"]
instance Controller DecisionRecordsController where
beforeAction = ensureIsUser
action DecisionRecordsAction = do
mOutcomeFilter <- paramOrNothing @Text "outcome"
records <- case mOutcomeFilter of
Nothing -> query @DecisionRecord |> orderByDesc #decidedAt |> fetch
Just o -> query @DecisionRecord
|> filterWhere (#outcome, o)
|> orderByDesc #decidedAt
|> fetch
requirements <- query @Requirement |> fetch
users <- query @User |> fetch
render IndexView { records, requirements, users, mOutcomeFilter }
action ShowDecisionRecordAction { decisionRecordId } = do
record <- fetch decisionRecordId
policyRefs <- query @PolicyReference
|> filterWhere (#decisionId, decisionRecordId)
|> orderByAsc #createdAt
|> fetch
implRefs <- query @ImplementationChangeReference
|> filterWhere (#decisionId, decisionRecordId)
|> orderByAsc #linkedAt
|> fetch
mRequirement <- case record.requirementId of
Nothing -> pure Nothing
Just rid -> fetchOneOrNothing rid
mCandidate <- case record.candidateId of
Nothing -> pure Nothing
Just cid -> fetchOneOrNothing cid
users <- query @User |> fetch
render ShowView
{ record
, policyRefs
, implRefs
, mRequirement
, mCandidate
, users
}
action NewDecisionRecordAction = do
requirements <- query @Requirement |> fetch
candidates <- query @RequirementCandidate |> fetch
users <- query @User |> fetch
let record = newRecord @DecisionRecord
render NewView { record, requirements, candidates, users }
action CreateDecisionRecordAction = do
requirements <- query @Requirement |> fetch
candidates <- query @RequirementCandidate |> fetch
users <- query @User |> fetch
mUser <- currentUserOrNothing
let decidedBy = fmap (.id) mUser
let record = newRecord @DecisionRecord
record
|> fill @'["title", "rationale", "outcome", "requirementId", "candidateId", "notes"]
|> set #decidedBy (fmap (Id . unId) decidedBy)
|> validateField #title nonEmpty
|> validateField #rationale nonEmpty
|> validateField #outcome (`elem` validOutcomes)
|> ifValid \case
Left record -> render NewView { record, requirements, candidates, users }
Right record -> do
created <- createRecord record
setSuccessMessage "Decision record created"
redirectTo ShowDecisionRecordAction { decisionRecordId = created.id }
action EditDecisionRecordAction { decisionRecordId } = do
record <- fetch decisionRecordId
requirements <- query @Requirement |> fetch
candidates <- query @RequirementCandidate |> fetch
users <- query @User |> fetch
render EditView { record, requirements, candidates, users }
action UpdateDecisionRecordAction { decisionRecordId } = do
record <- fetch decisionRecordId
requirements <- query @Requirement |> fetch
candidates <- query @RequirementCandidate |> fetch
users <- query @User |> fetch
-- Outcome is immutable: only update non-outcome fields
record
|> fill @'["title", "rationale", "requirementId", "candidateId", "notes"]
|> validateField #title nonEmpty
|> validateField #rationale nonEmpty
|> ifValid \case
Left record -> render EditView { record, requirements, candidates, users }
Right record -> do
updateRecord record
setSuccessMessage "Decision record updated"
redirectTo ShowDecisionRecordAction { decisionRecordId }
action AddPolicyReferenceAction { decisionRecordId } = do
mUser <- currentUserOrNothing
let createdBy = fmap (.id) mUser
policyScope <- param @Text "policyScope"
constraintNote <- paramOrNothing @Text "constraintNote"
unless (policyScope `elem` validPolicyScopes) do
setErrorMessage ("Invalid policy scope: " <> policyScope)
respondWith 422 do
redirectTo ShowDecisionRecordAction { decisionRecordId }
newRecord @PolicyReference
|> set #decisionId decisionRecordId
|> set #policyScope policyScope
|> set #constraintNote constraintNote
|> set #createdBy (fmap (Id . unId) createdBy)
|> createRecord
setSuccessMessage "Policy reference added"
redirectTo ShowDecisionRecordAction { decisionRecordId }
action DeletePolicyReferenceAction { policyReferenceId } = do
ref <- fetch policyReferenceId
let decisionRecordId = ref.decisionId
deleteRecord ref
setSuccessMessage "Policy reference removed"
redirectTo ShowDecisionRecordAction { decisionRecordId }
action AddImplementationRefAction { decisionRecordId } = do
mUser <- currentUserOrNothing
let linkedBy = fmap (.id) mUser
workItemRef <- param @Text "workItemRef"
system <- param @Text "system"
unless (system `elem` validSystems) do
setErrorMessage ("Invalid system: " <> system)
respondWith 422 do
redirectTo ShowDecisionRecordAction { decisionRecordId }
when (workItemRef == "") do
setErrorMessage "Work item reference cannot be empty"
respondWith 422 do
redirectTo ShowDecisionRecordAction { decisionRecordId }
newRecord @ImplementationChangeReference
|> set #decisionId decisionRecordId
|> set #workItemRef workItemRef
|> set #system system
|> set #linkedBy (fmap (Id . unId) linkedBy)
|> createRecord
setSuccessMessage "Implementation reference added"
redirectTo ShowDecisionRecordAction { decisionRecordId }
action DeleteImplementationRefAction { implementationChangeReferenceId } = do
ref <- fetch implementationChangeReferenceId
let decisionRecordId = ref.decisionId
deleteRecord ref
setSuccessMessage "Implementation reference removed"
redirectTo ShowDecisionRecordAction { decisionRecordId }

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@@ -6,6 +6,7 @@ import Web.View.Hubs.Show
import Web.View.Hubs.New
import Web.View.Hubs.Edit
import Web.View.Hubs.TriageDashboard
import Web.View.Hubs.GovernanceDashboard
import Generated.Types
import IHP.Prelude
import IHP.ControllerPrelude
@@ -110,3 +111,48 @@ instance Controller HubsController where
, recentEscalations
, allAnnotations
}
action GovernanceDashboardAction { hubId } = autoRefresh do
hub <- fetch hubId
widgets <- query @Widget
|> filterWhere (#hubId, hubId)
|> fetch
let widgetIds = map (.id) widgets
-- All requirements whose source candidate is in this hub's widgets
allCandidates <- query @RequirementCandidate
|> filterWhereIn (#sourceWidgetId, widgetIds)
|> fetch
let acceptedCandidateIds = map (.id) (filter (\c -> c.status == "accepted") allCandidates)
allRequirements <- query @Requirement
|> filterWhereIn (#sourceCandidateId, acceptedCandidateIds)
|> fetch
-- Recent decisions (last 20) — scoped to this hub's requirements
let requirementIds = map (.id) allRequirements
recentDecisions <- query @DecisionRecord
|> filterWhereIn (#requirementId, map Just requirementIds)
|> orderByDesc #decidedAt
|> limit 20
|> fetch
-- All hub decisions (for outcome counts)
allDecisions <- query @DecisionRecord
|> filterWhereIn (#requirementId, map Just requirementIds)
|> fetch
-- All annotations for traceability coverage
allAnnotations <- query @Annotation
|> filterWhereIn (#widgetId, widgetIds)
|> fetch
render GovernanceDashboardView
{ hub
, widgets
, allCandidates
, allRequirements
, recentDecisions
, allDecisions
, allAnnotations
}

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@@ -178,3 +178,58 @@ instance Controller RequirementCandidatesController where
, widgets
, mStatusFilter = Just "my_queue"
}
action PromoteToRequirementAction { requirementCandidateId } = do
candidate <- fetch requirementCandidateId
-- Guard: only accepted candidates may be promoted
when (candidate.status /= "accepted") do
setErrorMessage "Only accepted candidates can be promoted to a requirement"
respondWith 422 do
redirectTo ShowRequirementCandidateAction { requirementCandidateId }
-- Idempotent: if already promoted, redirect to existing requirement
case candidate.requirementId of
Just rid -> redirectTo ShowRequirementAction { requirementId = rid }
Nothing -> do
mUser <- currentUserOrNothing
let createdBy = fmap (.id) mUser
req <- newRecord @Requirement
|> set #title candidate.title
|> set #description candidate.description
|> set #sourceCandidateId requirementCandidateId
|> set #status "active"
|> set #createdBy (fmap (Id . unId) createdBy)
|> createRecord
candidate
|> set #requirementId (Just req.id)
|> updateRecord
setSuccessMessage "Promoted to requirement"
redirectTo ShowRequirementAction { requirementId = req.id }
action LinkToDecisionAction { requirementCandidateId } = do
candidate <- fetch requirementCandidateId
-- Guard: only accepted candidates
when (candidate.status /= "accepted") do
setErrorMessage "Only accepted candidates can be linked to a decision"
respondWith 422 do
redirectTo ShowRequirementCandidateAction { requirementCandidateId }
-- Idempotent: check if a decision already links to this candidate
existing <- query @DecisionRecord
|> filterWhere (#candidateId, Just requirementCandidateId)
|> fetchOneOrNothing
case existing of
Just dr -> redirectTo ShowDecisionRecordAction { decisionRecordId = dr.id }
Nothing -> do
mUser <- currentUserOrNothing
let decidedBy = fmap (.id) mUser
-- Use promoted requirement id if available
let mReqId = candidate.requirementId
dr <- newRecord @DecisionRecord
|> set #title candidate.title
|> set #rationale candidate.description
|> set #outcome "accepted"
|> set #candidateId (Just requirementCandidateId)
|> set #requirementId mReqId
|> set #decidedBy (fmap (Id . unId) decidedBy)
|> createRecord
setSuccessMessage "Decision record created"
redirectTo ShowDecisionRecordAction { decisionRecordId = dr.id }

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@@ -0,0 +1,25 @@
module Web.Controller.Requirements where
import Web.Types
import Web.View.Requirements.Index
import Web.View.Requirements.Show
import Generated.Types
import IHP.Prelude
import IHP.ControllerPrelude
instance Controller RequirementsController where
beforeAction = ensureIsUser
action RequirementsAction = do
requirements <- query @Requirement |> orderByDesc #createdAt |> fetch
candidates <- query @RequirementCandidate |> fetch
render IndexView { requirements, candidates }
action ShowRequirementAction { requirementId } = do
requirement <- fetch requirementId
candidate <- fetch requirement.sourceCandidateId
widget <- fetch candidate.sourceWidgetId
mDecision <- query @DecisionRecord
|> filterWhere (#requirementId, Just requirementId)
|> fetchOneOrNothing
render ShowView { requirement, candidate, widget, mDecision }