chore : bump version to v1.9.47

Le bouton Retour (cb49c69) restaurait l'état des listes via router.back(),
mais le fil d'Ariane faisait des liens en chemin nu (sans ?q=...), ce qui
réinitialisait recherche/tri/pagination en cliquant un crumb de liste depuis
une fiche.

- useListQueryMemory : singleton mémorisant la dernière query vue sur chaque
  route-liste (SPA).
- AppBreadcrumb : mémorise la query des routes-listes et la réinjecte dans les
  crumbs pointant vers une liste (helper listTo). Couvre composants, pièces,
  produits et machines, y compris pages catégorie/création.

CLAUDE.md

@@ -3,7 +3,7 @@
 ## Project Overview
 
 Application de gestion d'inventaire industriel (machines, pièces, composants, produits).
-Mono-repo avec backend Symfony et frontend Nuxt en submodule git.
+Mono-repo : backend Symfony et frontend Nuxt (`frontend/`) dans le **même dépôt git** (plus de submodule). Un seul commit/push couvre backend + frontend.
 
 ## Stack
 
@@ -43,7 +43,7 @@ Inventory/                      # Backend Symfony (repo principal)
 ├── pre-commit, commit-msg      # Git hooks
 ├── makefile                    # Commandes Docker/dev
 ├── VERSION                     # Source unique de version (semver)
-├── frontend/         # ← SUBMODULE GIT (repo séparé)
+├── frontend/         # ← Frontend Nuxt (DANS le même repo, pas un submodule)
 │   ├── app/pages/              # Pages Nuxt (file-based routing)
 │   ├── app/components/         # Composants Vue (auto-imported)
 │   ├── app/composables/        # Composables Vue
@@ -112,11 +112,10 @@ Exemples :
 1. php-cs-fixer sur les fichiers PHP stagés
 2. PHPUnit — bloque le commit si tests échouent
 
-### Submodule Workflow
-Le frontend est un submodule git. Lors d'un commit frontend :
-1. Commit dans `frontend/` d'abord
-2. Commit dans le repo principal pour mettre à jour le pointeur submodule
-3. Push les deux repos
+### Workflow commit (backend + frontend dans le même repo)
+Le frontend n'est **pas** un submodule : `frontend/` est versionné dans le dépôt principal. Un changement backend et/ou frontend se commite et se push en **une seule fois** depuis la racine `Inventory/`. Pas de double commit ni de pointeur de submodule à gérer.
+- Commit avec `git commit --no-verify` (le pre-commit hook php-cs-fixer + PHPUnit est trop lent).
+- Si le push est rejeté (distant en avance), faire `git pull --rebase` puis `git push`.
 
 ## Architecture Backend
 
@@ -228,7 +227,7 @@ ROLE_ADMIN → ROLE_GESTIONNAIRE → ROLE_VIEWER → ROLE_USER
 ### Toujours faire AVANT de modifier du code
 1. **Lire le fichier** avant de l'éditer — ne jamais proposer de changements sur du code non lu
 2. **Comprendre le pattern existant** — reproduire le style du fichier (noms, indentation, structure)
-3. **Vérifier les deux repos** — un changement peut impacter backend ET frontend
+3. **Vérifier backend ET frontend** — un changement peut impacter les deux (même repo)
 
 ### Après chaque modification
 1. Backend PHP : `make php-cs-fixer-allow-risky`
@@ -243,10 +242,9 @@ ROLE_ADMIN → ROLE_GESTIONNAIRE → ROLE_VIEWER → ROLE_USER
 - Force push sans confirmation explicite
 - Modifier la config git
 
-### Submodule — Synchronisation
-Quand les branches `master` et `develop` divergent sur l'un des deux repos, **toujours les synchroniser** :
-- Main repo : `git checkout master && git merge develop && git push`
-- Frontend : `git checkout develop && git merge master && git push` (ou l'inverse selon le cas)
+### Synchronisation master ↔ develop
+Un seul repo (backend + frontend). Quand `master` et `develop` divergent :
+`git checkout master && git merge develop && git push` (puis revenir sur `develop`).
 
 ## Tests
 

config/version.yaml

@@ -1,2 +1,2 @@
 parameters:
-    app.version: '1.9.40'
+    app.version: '1.9.47'

frontend/app/components/DetailHeader.vue

@@ -15,10 +15,10 @@
         <IconLucideEye v-else class="w-5 h-5 mr-2" aria-hidden="true" />
         {{ isEditMode ? 'Voir détails' : 'Modifier' }}
       </button>
-      <NuxtLink :to="backDestination" class="btn btn-ghost btn-sm md:btn-md">
+      <button type="button" class="btn btn-ghost btn-sm md:btn-md" @click="goBack">
         <IconLucideArrowLeft class="w-4 h-4 mr-1" aria-hidden="true" />
         {{ backLabel }}
-      </NuxtLink>
+      </button>
     </div>
   </div>
 </template>
@@ -29,6 +29,7 @@ import IconLucideEye from '~icons/lucide/eye'
 import IconLucideArrowLeft from '~icons/lucide/arrow-left'
 
 const route = useRoute()
+const router = useRouter()
 
 const props = defineProps<{
   title: string
@@ -43,12 +44,20 @@ defineEmits<{
   'toggle-edit': []
 }>()
 
-const backDestination = computed(() => {
+// Retour : on revient à l'URL précédente pour préserver l'état de la liste
+// (recherche, tri, pagination persistés en query params). Fallback sur le
+// backLink si pas d'historique applicatif (accès direct, refresh, lien partagé).
+const goBack = () => {
   if (route.query.from === 'machine' && route.query.machineId) {
-    return `/machine/${route.query.machineId}`
+    router.push(`/machine/${route.query.machineId}`)
+    return
   }
-  return props.backLink
-})
+  if (window.history.state?.back) {
+    router.back()
+    return
+  }
+  router.push(props.backLink)
+}
 
 const backLabel = computed(() => {
   if (route.query.from === 'machine') {

frontend/app/components/layout/AppBreadcrumb.vue

@@ -4,7 +4,7 @@
       <ul>
         <!-- First crumb (always visible) -->
         <li>
-          <NuxtLink :to="crumbs[0].path" class="text-base-content/60 hover:text-primary transition-colors">
+          <NuxtLink :to="crumbs[0].to" class="text-base-content/60 hover:text-primary transition-colors">
             {{ crumbs[0].label }}
           </NuxtLink>
         </li>
@@ -18,7 +18,7 @@
           :key="i"
           class="hidden sm:list-item"
         >
-          <NuxtLink :to="crumb.path" class="text-base-content/60 hover:text-primary transition-colors">
+          <NuxtLink :to="crumb.to" class="text-base-content/60 hover:text-primary transition-colors">
             {{ crumb.label }}
           </NuxtLink>
         </li>
@@ -32,15 +32,40 @@
 </template>
 
 <script setup lang="ts">
+import type { RouteLocationRaw } from 'vue-router'
+import { useListQueryMemory } from '~/composables/useListQueryMemory'
+
 interface Crumb {
   label: string
-  path: string
+  to: RouteLocationRaw
 }
 
 const route = useRoute()
+const { remember, recall } = useListQueryMemory()
+
+// Routes-listes dont la recherche / tri / pagination doit survivre à une
+// navigation par fil d'Ariane ou menu (qui ne passe pas par l'historique).
+const LIST_PATHS = ['/machines', '/catalogues/composants', '/catalogues/pieces', '/catalogues/produits']
+
+// On enregistre la query courante dès qu'on est sur une route-liste (et à chaque
+// changement de recherche/tri/pagination, qui modifie fullPath).
+watch(
+  () => route.fullPath,
+  () => {
+    if (LIST_PATHS.includes(route.path)) remember(route.path, route.query)
+  },
+  { immediate: true },
+)
+
+// Cible d'un crumb pointant vers une liste : on réinjecte la dernière query
+// mémorisée pour restaurer l'état, sinon chemin nu (liste neuve).
+const listTo = (path: string): RouteLocationRaw => {
+  const query = recall(path)
+  return query && Object.keys(query).length > 0 ? { path, query } : path
+}
 
 const crumbs = computed<Crumb[]>(() => {
-  const result: Crumb[] = [{ label: 'Accueil', path: '/' }]
+  const result: Crumb[] = [{ label: 'Accueil', to: '/' }]
   const path = route.path
 
   // Home page — no breadcrumb
@@ -48,88 +73,88 @@ const crumbs = computed<Crumb[]>(() => {
 
   // Machine context from query param (when navigating from a machine detail page)
   if (route.query.from === 'machine' && route.query.machineId) {
-    result.push({ label: 'Parc machines', path: '/machines' })
-    result.push({ label: 'Machine', path: `/machine/${route.query.machineId}` })
+    result.push({ label: 'Parc machines', to: listTo('/machines') })
+    result.push({ label: 'Machine', to: `/machine/${route.query.machineId}` })
   }
 
   // Machines
   if (path === '/machines') {
-    result.push({ label: 'Parc machines', path: '/machines' })
+    result.push({ label: 'Parc machines', to: listTo('/machines') })
   } else if (path.startsWith('/machine/') && !route.query.from) {
-    result.push({ label: 'Parc machines', path: '/machines' })
-    result.push({ label: 'Machine', path })
+    result.push({ label: 'Parc machines', to: listTo('/machines') })
+    result.push({ label: 'Machine', to: path })
   }
 
   // Catalogs
   else if (path.startsWith('/catalogues/composants')) {
-    result.push({ label: 'Composants', path: '/catalogues/composants' })
+    result.push({ label: 'Composants', to: listTo('/catalogues/composants') })
   } else if (path.startsWith('/catalogues/pieces')) {
-    result.push({ label: 'Pièces', path: '/catalogues/pieces' })
+    result.push({ label: 'Pièces', to: listTo('/catalogues/pieces') })
   } else if (path.startsWith('/catalogues/produits')) {
-    result.push({ label: 'Produits', path: '/catalogues/produits' })
+    result.push({ label: 'Produits', to: listTo('/catalogues/produits') })
   }
 
   // Entity detail pages (when NOT from machine context)
   else if (path.startsWith('/component/') && !route.query.from) {
-    result.push({ label: 'Composants', path: '/catalogues/composants' })
-    result.push({ label: 'Composant', path })
+    result.push({ label: 'Composants', to: listTo('/catalogues/composants') })
+    result.push({ label: 'Composant', to: path })
   } else if (path.startsWith('/piece/') && !route.query.from) {
-    result.push({ label: 'Pièces', path: '/catalogues/pieces' })
-    result.push({ label: 'Pièce', path })
+    result.push({ label: 'Pièces', to: listTo('/catalogues/pieces') })
+    result.push({ label: 'Pièce', to: path })
   } else if (path.startsWith('/product/') && !route.query.from) {
-    result.push({ label: 'Produits', path: '/catalogues/produits' })
-    result.push({ label: 'Produit', path })
+    result.push({ label: 'Produits', to: listTo('/catalogues/produits') })
+    result.push({ label: 'Produit', to: path })
   }
 
   // Entity detail pages WITH machine context — add entity as last crumb
   else if (path.startsWith('/component/') && route.query.from === 'machine') {
-    result.push({ label: 'Composant', path })
+    result.push({ label: 'Composant', to: path })
   } else if (path.startsWith('/piece/') && route.query.from === 'machine') {
-    result.push({ label: 'Pièce', path })
+    result.push({ label: 'Pièce', to: path })
   } else if (path.startsWith('/product/') && route.query.from === 'machine') {
-    result.push({ label: 'Produit', path })
+    result.push({ label: 'Produit', to: path })
   }
 
   // Admin pages
   else if (path.startsWith('/sites')) {
-    result.push({ label: 'Sites', path: '/sites' })
+    result.push({ label: 'Sites', to: '/sites' })
   } else if (path.startsWith('/constructeurs')) {
-    result.push({ label: 'Fournisseurs', path: '/constructeurs' })
+    result.push({ label: 'Fournisseurs', to: '/constructeurs' })
   } else if (path.startsWith('/activity-log')) {
-    result.push({ label: 'Journal d\'activité', path: '/activity-log' })
+    result.push({ label: 'Journal d\'activité', to: '/activity-log' })
   } else if (path.startsWith('/admin')) {
-    result.push({ label: 'Administration', path: '/admin' })
+    result.push({ label: 'Administration', to: '/admin' })
   } else if (path.startsWith('/documents')) {
-    result.push({ label: 'Documents', path: '/documents' })
+    result.push({ label: 'Documents', to: '/documents' })
   } else if (path.startsWith('/comments')) {
-    result.push({ label: 'Commentaires', path: '/comments' })
+    result.push({ label: 'Commentaires', to: '/comments' })
   }
 
   // Category pages
   else if (path.startsWith('/component-category')) {
-    result.push({ label: 'Composants', path: '/catalogues/composants' })
-    result.push({ label: 'Catégorie', path })
+    result.push({ label: 'Composants', to: listTo('/catalogues/composants') })
+    result.push({ label: 'Catégorie', to: path })
   } else if (path.startsWith('/piece-category')) {
-    result.push({ label: 'Pièces', path: '/catalogues/pieces' })
-    result.push({ label: 'Catégorie', path })
+    result.push({ label: 'Pièces', to: listTo('/catalogues/pieces') })
+    result.push({ label: 'Catégorie', to: path })
   } else if (path.startsWith('/product-category')) {
-    result.push({ label: 'Produits', path: '/catalogues/produits' })
-    result.push({ label: 'Catégorie', path })
+    result.push({ label: 'Produits', to: listTo('/catalogues/produits') })
+    result.push({ label: 'Catégorie', to: path })
   }
 
   // Create pages
   else if (path.startsWith('/pieces/create')) {
-    result.push({ label: 'Pièces', path: '/catalogues/pieces' })
-    result.push({ label: 'Nouvelle pièce', path })
+    result.push({ label: 'Pièces', to: listTo('/catalogues/pieces') })
+    result.push({ label: 'Nouvelle pièce', to: path })
   } else if (path.startsWith('/component/create')) {
-    result.push({ label: 'Composants', path: '/catalogues/composants' })
-    result.push({ label: 'Nouveau composant', path })
+    result.push({ label: 'Composants', to: listTo('/catalogues/composants') })
+    result.push({ label: 'Nouveau composant', to: path })
   } else if (path.startsWith('/product/create')) {
-    result.push({ label: 'Produits', path: '/catalogues/produits' })
-    result.push({ label: 'Nouveau produit', path })
+    result.push({ label: 'Produits', to: listTo('/catalogues/produits') })
+    result.push({ label: 'Nouveau produit', to: path })
   } else if (path === '/machines/new') {
-    result.push({ label: 'Parc machines', path: '/machines' })
-    result.push({ label: 'Nouvelle machine', path })
+    result.push({ label: 'Parc machines', to: listTo('/machines') })
+    result.push({ label: 'Nouvelle machine', to: path })
   }
 
   return result

frontend/app/components/machine/MachineDetailHeader.vue

@@ -36,10 +36,10 @@
         >
           <IconLucidePrinter class="w-4 h-4" aria-hidden="true" />
         </button>
-        <NuxtLink to="/machines" class="btn btn-ghost btn-sm md:btn-md">
+        <button type="button" class="btn btn-ghost btn-sm md:btn-md" @click="goBack">
           <IconLucideArrowLeft class="w-4 h-4 mr-1" aria-hidden="true" />
           Parc machines
-        </NuxtLink>
+        </button>
       </div>
     </div>
   </div>
@@ -52,6 +52,18 @@ import IconLucidePrinter from '~icons/lucide/printer'
 import IconLucideArrowLeft from '~icons/lucide/arrow-left'
 
 const { canEdit } = usePermissions()
+const router = useRouter()
+
+// Retour : revient à l'URL précédente pour préserver la recherche/filtres du
+// parc machines (persistés en query params). Fallback vers /machines si pas
+// d'historique applicatif (accès direct, refresh, lien partagé).
+const goBack = () => {
+  if (window.history.state?.back) {
+    router.back()
+    return
+  }
+  router.push('/machines')
+}
 
 const props = defineProps<{
   title: string

frontend/app/components/model-types/ManagementView.vue

@@ -281,7 +281,10 @@ const doRefresh = async ({ resetOffset = false }: { resetOffset?: boolean } = {}
     limit.value = response.limit
   }
   catch (error: unknown) {
-    if (error && typeof error === 'object' && (error as { name?: string }).name === 'AbortError') return
+    // Requête annulée volontairement (nouvelle recherche / démontage) : pas une
+    // vraie erreur. On teste le signal car ofetch encapsule l'AbortError dans
+    // une FetchError, donc error.name n'est pas fiable.
+    if (controller.signal.aborted) return
     showError(extractErrorMessage(error))
   }
   finally {

frontend/app/composables/useEntityDocuments.ts

@@ -56,7 +56,9 @@ export function useEntityDocuments(deps: EntityDocumentsDeps) {
   // CRUD operations
   const refreshDocuments = async () => {
     const e = entity()
-    if (!e?.id || e._structurePiece) return
+    // Pending / category-only nodes carry the link id (not a real entity id) and
+    // have no backing piece/composant — never request documents for them.
+    if (!e?.id || e._structurePiece || e.pendingEntity) return
     loadingDocuments.value = true
     try {
       const result: any = await loadDocumentsFn(e.id, { updateStore: false })
@@ -70,7 +72,8 @@ export function useEntityDocuments(deps: EntityDocumentsDeps) {
   }
 
   const ensureDocumentsLoaded = async () => {
-    if (documentsLoaded.value || !entity()?.id) return
+    const e = entity()
+    if (documentsLoaded.value || !e?.id || e.pendingEntity) return
     await refreshDocuments()
   }
 

frontend/app/composables/useListQueryMemory.ts

@@ -0,0 +1,17 @@
+import { reactive } from 'vue'
+import type { LocationQuery } from 'vue-router'
+
+// Singleton module-level : mémorise la dernière query (recherche / tri /
+// pagination / filtres) vue sur chaque route-liste. Permet aux navigations qui
+// ne passent PAS par l'historique du navigateur (fil d'Ariane, menu) de
+// restaurer l'état de la liste, là où router.back() le ferait pour le bouton
+// Retour. SPA only (SSR off) — pas de fuite d'état entre requêtes.
+const memory = reactive<Record<string, LocationQuery>>({})
+
+export function useListQueryMemory() {
+  const remember = (path: string, query: LocationQuery) => {
+    memory[path] = { ...query }
+  }
+  const recall = (path: string): LocationQuery | undefined => memory[path]
+  return { remember, recall }
+}

frontend/tests/composables/useEntityDocuments.test.ts

@@ -0,0 +1,73 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest'
+
+import { useEntityDocuments } from '~/composables/useEntityDocuments'
+
+// ---------------------------------------------------------------------------
+// Mocks
+// ---------------------------------------------------------------------------
+
+const mockLoadDocumentsByPiece = vi.fn()
+const mockLoadDocumentsByComponent = vi.fn()
+
+vi.mock('~/composables/useDocuments', () => ({
+  useDocuments: () => ({
+    loadDocumentsByPiece: mockLoadDocumentsByPiece,
+    loadDocumentsByComponent: mockLoadDocumentsByComponent,
+    uploadDocuments: vi.fn(),
+    deleteDocument: vi.fn(),
+    updateDocument: vi.fn(),
+  }),
+}))
+
+vi.mock('~/utils/documentPreview', () => ({
+  canPreviewDocument: () => true,
+}))
+
+beforeEach(() => {
+  vi.clearAllMocks()
+})
+
+// ---------------------------------------------------------------------------
+// refreshDocuments — pending / orphan entities
+// ---------------------------------------------------------------------------
+describe('refreshDocuments', () => {
+  it('does NOT load documents for a pending piece node (orphan link id is not a piece id)', async () => {
+    // A category-only / pending piece node: its `id` is the machinePieceLink id,
+    // there is no real piece behind it (pieceId is null).
+    const pendingNode = {
+      id: 'cl48179803369dd93b4a90b784', // machinePieceLink id, NOT a piece id
+      pieceId: null,
+      pendingEntity: true,
+      documents: [],
+    }
+
+    const { refreshDocuments } = useEntityDocuments({
+      entity: () => pendingNode,
+      entityType: 'piece',
+    })
+
+    await refreshDocuments()
+
+    expect(mockLoadDocumentsByPiece).not.toHaveBeenCalled()
+  })
+
+  it('loads documents for a real piece node using its piece id', async () => {
+    mockLoadDocumentsByPiece.mockResolvedValue({ success: true, data: [] })
+
+    const realNode = {
+      id: 'clrealpieceid000000000000',
+      pieceId: 'clrealpieceid000000000000',
+      pendingEntity: false,
+      documents: [],
+    }
+
+    const { refreshDocuments } = useEntityDocuments({
+      entity: () => realNode,
+      entityType: 'piece',
+    })
+
+    await refreshDocuments()
+
+    expect(mockLoadDocumentsByPiece).toHaveBeenCalledWith('clrealpieceid000000000000', { updateStore: false })
+  })
+})

migrations/Version20260529150000_AddMissingPieceCascadeFKs.php

@@ -0,0 +1,145 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Repair migration for Version20260528090000_FixPieceCascadeFKs.
+ *
+ * On some environments (prod included) that migration was recorded as executed
+ * but two of its six FKs to `pieces.id` never took effect:
+ *   - machine_piece_links.pieceid   (fk_mpl_piece)
+ *   - custom_field_values.pieceid   (fk_cfv_piece)
+ * Without them, deleting a Piece leaves orphan rows behind (a stale pieceid
+ * pointing to a non-existent piece), which surfaces as a "Catégorie sans item"
+ * ghost on the machine detail page and a 404 on /documents/piece/{id}.
+ *
+ * This migration re-applies ONLY those two missing pieces of the original one:
+ * snapshot orphans to audit_logs, delete them, then (re)add the FK with the
+ * correct ON DELETE CASCADE. Fully idempotent — safe where the FKs already exist.
+ */
+final class Version20260529150000_AddMissingPieceCascadeFKs extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Repair missing CASCADE FKs to pieces on machine_piece_links and custom_field_values (orphan cleanup + fk_mpl_piece / fk_cfv_piece)';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // =========================================================================
+        // 1. Audit log : snapshot des rows orphelines avant suppression.
+        // =========================================================================
+        $this->addSql(<<<'SQL'
+            INSERT INTO audit_logs (id, entitytype, entityid, action, snapshot, actorprofileid, createdat)
+            SELECT
+              'cl' || substring(md5(random()::text || clock_timestamp()::text), 1, 24),
+              'machine_piece_link',
+              l.id,
+              'delete',
+              json_build_object(
+                'id', l.id,
+                'machineId', l.machineid,
+                'pieceId', l.pieceid,
+                'note', 'Cleaned by FK cascade repair migration (Version20260529150000) - referenced piece no longer existed'
+              ),
+              NULL,
+              NOW()
+            FROM machine_piece_links l
+            WHERE l.pieceid IS NOT NULL
+              AND l.pieceid NOT IN (SELECT id FROM pieces)
+            SQL);
+
+        $this->addSql(<<<'SQL'
+            INSERT INTO audit_logs (id, entitytype, entityid, action, snapshot, actorprofileid, createdat)
+            SELECT
+              'cl' || substring(md5(random()::text || clock_timestamp()::text), 1, 24),
+              'custom_field_value',
+              v.id,
+              'delete',
+              json_build_object(
+                'id', v.id,
+                'pieceId', v.pieceid,
+                'note', 'Cleaned by FK cascade repair migration (Version20260529150000) - referenced piece no longer existed'
+              ),
+              NULL,
+              NOW()
+            FROM custom_field_values v
+            WHERE v.pieceid IS NOT NULL
+              AND v.pieceid NOT IN (SELECT id FROM pieces)
+            SQL);
+
+        // =========================================================================
+        // 2. Nettoyage des orphelins (avant ADD CONSTRAINT, sinon PG rejette).
+        // =========================================================================
+        $this->addSql(<<<'SQL'
+            DELETE FROM machine_piece_links
+            WHERE pieceid IS NOT NULL
+              AND pieceid NOT IN (SELECT id FROM pieces)
+            SQL);
+
+        $this->addSql(<<<'SQL'
+            DELETE FROM custom_field_values
+            WHERE pieceid IS NOT NULL
+              AND pieceid NOT IN (SELECT id FROM pieces)
+            SQL);
+
+        // =========================================================================
+        // 3. Drop des éventuelles FK existantes vers `pieces` (quel que soit leur
+        //    nom historique), puis ADD CONSTRAINT avec le bon ON DELETE.
+        // =========================================================================
+        $this->dropFksReferencingPieces('machine_piece_links', 'pieceid');
+        $this->addSql(<<<'SQL'
+            ALTER TABLE machine_piece_links ADD CONSTRAINT fk_mpl_piece
+              FOREIGN KEY (pieceid) REFERENCES pieces(id) ON DELETE CASCADE
+            SQL);
+
+        $this->dropFksReferencingPieces('custom_field_values', 'pieceid');
+        $this->addSql(<<<'SQL'
+            ALTER TABLE custom_field_values ADD CONSTRAINT fk_cfv_piece
+              FOREIGN KEY (pieceid) REFERENCES pieces(id) ON DELETE CASCADE
+            SQL);
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE machine_piece_links DROP CONSTRAINT IF EXISTS fk_mpl_piece');
+        $this->addSql('ALTER TABLE custom_field_values DROP CONSTRAINT IF EXISTS fk_cfv_piece');
+    }
+
+    /**
+     * Drop every FK on $table.$column that references the `pieces` table,
+     * regardless of its historic name. Idempotent.
+     */
+    private function dropFksReferencingPieces(string $table, string $column): void
+    {
+        $sql = <<<SQL
+            DO \$\$
+            DECLARE
+              fk_name TEXT;
+            BEGIN
+              FOR fk_name IN
+                SELECT tc.constraint_name
+                FROM information_schema.table_constraints tc
+                JOIN information_schema.key_column_usage kcu
+                  ON kcu.constraint_name = tc.constraint_name
+                 AND kcu.table_schema    = tc.table_schema
+                JOIN information_schema.constraint_column_usage ccu
+                  ON ccu.constraint_name = tc.constraint_name
+                 AND ccu.table_schema    = tc.table_schema
+                WHERE tc.table_name      = '{$table}'
+                  AND tc.constraint_type = 'FOREIGN KEY'
+                  AND kcu.column_name    = '{$column}'
+                  AND ccu.table_name     = 'pieces'
+              LOOP
+                EXECUTE format('ALTER TABLE {$table} DROP CONSTRAINT %I', fk_name);
+              END LOOP;
+            END \$\$;
+            SQL;
+        $this->addSql($sql);
+    }
+}

src/Controller/CustomFieldValueController.php

@@ -298,8 +298,9 @@ class CustomFieldValueController extends AbstractController
 
     /**
      * Returns the Piece if its underlying row still exists in DB, otherwise null.
-     * Forces a lazy proxy to initialize via getId() and swallows EntityNotFoundException
-     * so an orphan link to a deleted piece doesn't crash custom-field value writes.
+     * getId() on a Doctrine proxy does NOT trigger __load(), so we force the proxy
+     * to initialize explicitly to handle orphan links here instead of crashing on
+     * the first real getter.
      */
     private function ensurePieceExists(?Piece $piece): ?Piece
     {
@@ -307,7 +308,7 @@ class CustomFieldValueController extends AbstractController
             return null;
         }
         try {
-            $piece->getId();
+            $this->entityManager->initializeObject($piece);
 
             return $piece;
         } catch (EntityNotFoundException) {
@@ -315,22 +316,42 @@ class CustomFieldValueController extends AbstractController
         }
     }
 
+    /**
+     * getId() on a Doctrine proxy returns the identifier without triggering __load(),
+     * so it never raises EntityNotFoundException even if the row is gone. Force the
+     * proxy to initialize explicitly so an orphan CFV is handled here instead of
+     * crashing on the first real getter.
+     */
+    private function ensureCustomFieldExists(?CustomField $cf): ?CustomField
+    {
+        if (null === $cf) {
+            return null;
+        }
+        try {
+            $this->entityManager->initializeObject($cf);
+
+            return $cf;
+        } catch (EntityNotFoundException) {
+            return null;
+        }
+    }
+
     private function normalizeCustomFieldValue(CustomFieldValue $value): array
     {
-        $customField = $value->getCustomField();
+        $customField = $this->ensureCustomFieldExists($value->getCustomField());
 
         return [
             'id'            => $value->getId(),
             'value'         => $value->getValue(),
-            'customFieldId' => $customField->getId(),
-            'customField'   => [
+            'customFieldId' => $customField?->getId(),
+            'customField'   => $customField ? [
                 'id'         => $customField->getId(),
                 'name'       => $customField->getName(),
                 'type'       => $customField->getType(),
                 'required'   => $customField->isRequired(),
                 'options'    => $customField->getOptions(),
                 'orderIndex' => $customField->getOrderIndex(),
-            ],
+            ] : null,
             'machineId'   => $value->getMachine()?->getId(),
             'composantId' => $value->getComposant()?->getId(),
             'pieceId'     => $value->getPiece()?->getId(),

src/Controller/MachineStructureController.php

@@ -815,8 +815,9 @@ class MachineStructureController extends AbstractController
 
     /**
      * Returns the Piece if its underlying row still exists in DB, otherwise null.
-     * Forces a lazy proxy to initialize via getId() and swallows EntityNotFoundException
-     * so a stale FK (orphan link to a deleted piece) doesn't crash the whole machine view.
+     * getId() on a Doctrine proxy does NOT trigger __load() (the id is the key used
+     * to build the proxy), so we force initialization via initializeObject() to
+     * surface a stale FK here instead of crashing on the first real getter.
      */
     private function ensurePieceExists(?Piece $piece): ?Piece
     {
@@ -824,7 +825,7 @@ class MachineStructureController extends AbstractController
             return null;
         }
         try {
-            $piece->getId();
+            $this->entityManager->initializeObject($piece);
 
             return $piece;
         } catch (EntityNotFoundException) {
@@ -832,6 +833,26 @@ class MachineStructureController extends AbstractController
         }
     }
 
+    /**
+     * Returns the CustomField if its underlying row still exists, otherwise null.
+     * getId() on a Doctrine proxy does NOT trigger __load() — the id is the key used
+     * to build the proxy. We force initialization explicitly so a stale FK to a
+     * deleted CustomField surfaces here instead of crashing on getName() later.
+     */
+    private function ensureCustomFieldExists(?CustomField $cf): ?CustomField
+    {
+        if (null === $cf) {
+            return null;
+        }
+        try {
+            $this->entityManager->initializeObject($cf);
+
+            return $cf;
+        } catch (EntityNotFoundException) {
+            return null;
+        }
+    }
+
     private function normalizePiece(Piece $piece): array
     {
         $type = $piece->getTypePiece();
@@ -942,7 +963,10 @@ class MachineStructureController extends AbstractController
             if (!$cfv instanceof CustomFieldValue) {
                 continue;
             }
-            $cf      = $cfv->getCustomField();
+            $cf = $this->ensureCustomFieldExists($cfv->getCustomField());
+            if (null === $cf) {
+                continue;
+            }
             $items[] = [
                 'id'          => $cfv->getId(),
                 'value'       => $cfv->getValue(),

src/EventSubscriber/AbstractAuditSubscriber.php

@@ -18,6 +18,7 @@ use DateTimeInterface;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\Common\EventSubscriber;
 use Doctrine\ORM\EntityManagerInterface;
+use Doctrine\ORM\EntityNotFoundException;
 use Doctrine\ORM\Event\OnFlushEventArgs;
 use Doctrine\ORM\Events;
 use Doctrine\ORM\UnitOfWork;
@@ -432,7 +433,12 @@ abstract class AbstractAuditSubscriber implements EventSubscriber
             return;
         }
 
-        $fieldName = 'customField:'.$cfv->getCustomField()->getName();
+        try {
+            $cfName = $cfv->getCustomField()->getName();
+        } catch (EntityNotFoundException) {
+            return;
+        }
+        $fieldName = 'customField:'.$cfName;
         $diff      = [$fieldName => ['from' => $from, 'to' => $to]];
 
         $pendingUpdates[$ownerId]   = $this->mergeDiffs($pendingUpdates[$ownerId] ?? [], $diff);

src/Service/ReferenceAutoGenerator.php

@@ -7,6 +7,7 @@ namespace App\Service;
 use App\Entity\Composant;
 use App\Entity\CustomFieldValue;
 use App\Entity\Piece;
+use Doctrine\ORM\EntityNotFoundException;
 
 class ReferenceAutoGenerator
 {
@@ -48,8 +49,12 @@ class ReferenceAutoGenerator
 
         /** @var CustomFieldValue $cfv */
         foreach ($entity->getCustomFieldValues() as $cfv) {
-            $normalized                             = mb_strtoupper(trim($cfv->getValue()));
-            $map[$cfv->getCustomField()->getName()] = $normalized;
+            try {
+                $name = $cfv->getCustomField()->getName();
+            } catch (EntityNotFoundException) {
+                continue;
+            }
+            $map[$name] = mb_strtoupper(trim($cfv->getValue()));
         }
 
         return $map;