fix(contacts): stabilize contacts pagination and company enrichment

RELEASE_NOTES_v2.3.1.md

@@ -0,0 +1,19 @@
+# v2.3.1 — 16. maj 2026
+
+## Fix: contacts pagination and company enrichment
+
+- **Hotfix:** Contacts showing too few rows (contacts pagination bug)
+- **Fix:** File `app/contacts/backend/router_simple.py` to stabilize pagination and company enrichment
+
+## Contacts list
+
+- Fixed bug where contacts list showed too few rows (pagination issue)
+- Stabilized company enrichment data for contacts
+
+## File changed
+
+- `app/contacts/backend/router_simple.py`
+
+## Affected versions
+
+- v2.3.1

app/contacts/backend/router_simple.py

@@ -119,32 +119,55 @@ async def get_contacts(
         if is_active is not None:
             where_clauses.append("c.is_active = %s")
             params.append(is_active)
+
+        if customer_id is not None:
+            where_clauses.append(
+                "EXISTS (SELECT 1 FROM contact_companies cc WHERE cc.contact_id = c.id AND cc.customer_id = %s)"
+            )
+            params.append(customer_id)
         
         where_sql = "WHERE " + " AND ".join(where_clauses) if where_clauses else ""
         
-        # Count total (needs alias c for consistency)
+        # Count total (distinct id for consistency with optional filters/joins)
-        count_query = f"SELECT COUNT(*) as count FROM contacts c {where_sql}"
+        count_query = f"SELECT COUNT(DISTINCT c.id) as count FROM contacts c {where_sql}"
         count_result = execute_query(count_query, tuple(params))
         total = count_result[0]['count'] if count_result else 0
         
-        # Get contacts with company info
+        # Step 1: Fetch contacts only (stable pagination)
-        query = f"""
+        contacts_query = f"""
             SELECT 
                 c.id, c.first_name, c.last_name, c.email, c.phone, c.mobile,
-                c.title, c.department, c.user_company, c.is_active, c.created_at, c.updated_at,
+                c.title, c.department, c.user_company, c.is_active, c.created_at, c.updated_at
-                COUNT(DISTINCT cc.customer_id) as company_count,
-                ARRAY_AGG(DISTINCT cu.name ORDER BY cu.name) FILTER (WHERE cu.name IS NOT NULL) as company_names
             FROM contacts c
-            LEFT JOIN contact_companies cc ON c.id = cc.contact_id
-            LEFT JOIN customers cu ON cc.customer_id = cu.id
             {where_sql}
-            GROUP BY c.id, c.first_name, c.last_name, c.email, c.phone, c.mobile,
+            ORDER BY c.last_name, c.first_name, c.id
-                     c.title, c.department, c.user_company, c.is_active, c.created_at, c.updated_at
-            ORDER BY company_count DESC, c.last_name, c.first_name, c.id
             LIMIT %s OFFSET %s
         """
-        params.extend([limit, offset])
+        contacts_params = list(params)
-        contacts = execute_query(query, tuple(params))
+        contacts_params.extend([limit, offset])
+        contacts = execute_query(contacts_query, tuple(contacts_params)) or []
+
+        # Step 2: Enrich page contacts with aggregated company info
+        if contacts:
+            contact_ids = [row["id"] for row in contacts]
+            placeholders = ",".join(["%s"] * len(contact_ids))
+            companies_query = f"""
+                SELECT
+                    cc.contact_id,
+                    COUNT(DISTINCT cc.customer_id) AS company_count,
+                    ARRAY_AGG(DISTINCT cu.name ORDER BY cu.name) FILTER (WHERE cu.name IS NOT NULL) AS company_names
+                FROM contact_companies cc
+                LEFT JOIN customers cu ON cc.customer_id = cu.id
+                WHERE cc.contact_id IN ({placeholders})
+                GROUP BY cc.contact_id
+            """
+            company_rows = execute_query(companies_query, tuple(contact_ids)) or []
+            company_map = {row["contact_id"]: row for row in company_rows}
+
+            for contact in contacts:
+                info = company_map.get(contact["id"])
+                contact["company_count"] = int(info["company_count"]) if info and info.get("company_count") is not None else 0
+                contact["company_names"] = info.get("company_names") if info and info.get("company_names") else []
         
         return {
             "total": total,