i

src/providers/mssql/queries/article.js

@@ -82,11 +82,19 @@ FROM article
 WHERE sku = @sku AND (@companyId IS NULL OR company_id = @companyId)
 `;
 
-/** True if an EAN is already assigned to any article (duplicate guard). */
+/** True if an EAN is already assigned to any article in the company (duplicate guard). */
 export const EAN_EXISTS = `
 SELECT TOP 1 1 AS used
-FROM articleean
+FROM articleean ae
-WHERE ean = @ean
+INNER JOIN article a ON a.id = ae.article_id
+WHERE ae.ean = @ean AND (@companyId IS NULL OR a.company_id = @companyId)
+`;
+
+export const EAN_EXISTS_FOR_OTHER_ARTICLE = `
+SELECT TOP 1 1 AS used
+FROM articleean ae
+INNER JOIN article a ON a.id = ae.article_id
+WHERE ae.ean = @ean AND a.company_id = @companyId AND a.id <> @articleId
 `;
 
 /** Link an article to its parent article and mark the parent. */

src/providers/mssql/queries/pic.js

@@ -9,7 +9,7 @@ VALUES (
 `;
 
 export const GET_CATEGORY_ID_BY_HASH = `
-SELECT TOP 1 categoryId
+SELECT categoryId
 FROM (
     SELECT ca.category_id AS categoryId
     FROM pic p
@@ -19,6 +19,15 @@ FROM (
 
     UNION
 
+    SELECT c.root_category_id AS categoryId
+    FROM pic p
+    INNER JOIN articlepic ap ON ap.pic_id = p.id
+    INNER JOIN article a ON a.id = ap.article_id
+    INNER JOIN company c ON c.id = a.company_id
+    WHERE p.hash = @hash
+
+    UNION
+
     SELECT cp.category_id AS categoryId
     FROM pic p
     INNER JOIN categorypic cp ON cp.pic_id = p.id
@@ -33,6 +42,7 @@ FROM (
     INNER JOIN company c ON c.id = b.company_id
     WHERE p.hash = @hash
 ) AS combined
+WHERE categoryId IS NOT NULL
 `;
 
 export const GET_FULL_BY_HASH = `

src/providers/mssql/schema.js

@@ -418,11 +418,13 @@ BEGIN
         article_id INT NOT NULL,
         ean NVARCHAR(50) NOT NULL,
         CONSTRAINT FK_articleean_article FOREIGN KEY (article_id) REFERENCES article(id) ON DELETE CASCADE,
-        CONSTRAINT UQ_articleean_ean UNIQUE (ean)
+        CONSTRAINT UQ_articleean_article_ean UNIQUE (article_id, ean)
     );
-    -- Hot path: getBySku EANs by article (UQ is ean-leading only)
+    -- Hot path: getBySku EANs by article
     CREATE INDEX IX_articleean_article_ean
         ON articleean (article_id, ean);
+    CREATE INDEX IX_articleean_ean
+        ON articleean (ean);
 END
 `;
 

src/providers/sqlite3/queries/article.js

@@ -4,7 +4,7 @@ import { translateQueries } from './translate.js';
 const queries = translateQueries(source, 'article');
 export const {
   ADD_CATEGORY, ADD_EAN, ARTICLE_LIST_COLUMNS, CREATE, CREATE_CHILD,
-  DELETE_CATEGORIES_BY_ARTICLE, DELETE_EANS_BY_ARTICLE, EAN_EXISTS,
+  DELETE_CATEGORIES_BY_ARTICLE, DELETE_EANS_BY_ARTICLE, EAN_EXISTS, EAN_EXISTS_FOR_OTHER_ARTICLE,
   GET_BRAND_BY_COMPANY_AND_ID,
   GET_CATEGORY_ID_BY_SKU, GET_CATEGORY_TREE_FLAT, GET_ID_BY_SKU,
   LIST_CHILDREN_BY_PARENT_ID,

src/providers/sqlite3/schema.js

@@ -246,11 +246,13 @@ export const INIT_ARTICLEEAN = `
 CREATE TABLE IF NOT EXISTS articleean (
     id INTEGER PRIMARY KEY,
     article_id INTEGER NOT NULL,
-    ean TEXT NOT NULL UNIQUE,
+    ean TEXT NOT NULL,
     FOREIGN KEY (article_id) REFERENCES article(id) ON DELETE CASCADE
 );
-CREATE INDEX IF NOT EXISTS IX_articleean_article_ean
+CREATE UNIQUE INDEX IF NOT EXISTS UQ_articleean_article_ean
     ON articleean(article_id, ean);
+CREATE INDEX IF NOT EXISTS IX_articleean_ean
+    ON articleean(ean);
 `;
 
 export const INIT_ARTICLEPIC = `

src/store/article/setEansBySku.js

@@ -1,10 +1,12 @@
 import {
   ADD_EAN as MSSQL_ADD_EAN,
   DELETE_EANS_BY_ARTICLE as MSSQL_DELETE_EANS,
+  EAN_EXISTS_FOR_OTHER_ARTICLE as MSSQL_CHECK_CONFLICT,
 } from '../../providers/mssql/queries/article.js';
 import {
   ADD_EAN as SQLITE_ADD_EAN,
   DELETE_EANS_BY_ARTICLE as SQLITE_DELETE_EANS,
+  EAN_EXISTS_FOR_OTHER_ARTICLE as SQLITE_CHECK_CONFLICT,
 } from '../../providers/sqlite3/queries/article.js';
 import { INSERT as MSSQL_INSERT_HISTORY } from '../../providers/mssql/queries/articlehistory.js';
 import { INSERT as SQLITE_INSERT_HISTORY } from '../../providers/sqlite3/queries/articlehistory.js';
@@ -21,6 +23,7 @@ export default function setEansBySku(provider) {
   const addEanSql = isSqlite ? SQLITE_ADD_EAN : MSSQL_ADD_EAN;
   const deleteEansSql = isSqlite ? SQLITE_DELETE_EANS : MSSQL_DELETE_EANS;
   const insertHistorySql = isSqlite ? SQLITE_INSERT_HISTORY : MSSQL_INSERT_HISTORY;
+  const checkConflictSql = isSqlite ? SQLITE_CHECK_CONFLICT : MSSQL_CHECK_CONFLICT;
 
   /**
    * Replaces the EAN list of an article by its SKU.
@@ -55,7 +58,19 @@ export default function setEansBySku(provider) {
     }
 
     const runSet = async (runner) => {
-      const { articleId, languageId, companyuserId } = await resolve(googleAuthId, sku, runner);
+      const { articleId, languageId, companyuserId, companyId } = await resolve(googleAuthId, sku, runner);
+
+      // Guard: EAN cannot be used by another article in the same company
+      for (const ean of normalized) {
+        const conflict = await runner.query(checkConflictSql, {
+          ean,
+          companyId,
+          articleId,
+        });
+        if (conflict.rows[0]) {
+          throw new Error('EAN already in use');
+        }
+      }
 
       // Read old EANs for history
       const oldEanRes = await runner.query(

src/store/pic/resolvePicAccess.js

@@ -10,11 +10,26 @@ export default function resolvePicAccess(provider) {
   return async (googleAuthId, fullHash, tx) => {
     const result = await makeRunner(provider, tx).query(sql, { hash: fullHash });
 
-    const categoryId = result.rows[0]?.categoryId;
+    if (!result.rows || result.rows.length === 0) {
-    if (!categoryId) {
       throw new Error('Image not found');
     }
 
-    await access(googleAuthId, categoryId, tx);
+    let authorized = false;
+    let lastError = null;
+    for (const row of result.rows) {
+      const categoryId = row.categoryId;
+      if (!categoryId) continue;
+      try {
+        await access(googleAuthId, categoryId, tx);
+        authorized = true;
+        break;
+      } catch (err) {
+        lastError = err;
+      }
+    }
+
+    if (!authorized) {
+      throw lastError || new Error('Not authorized');
+    }
   };
 }