docs/devlogs/fixes/2025-12-08-summary.md

Filter Fix Summary - December 8, 2025

Problem Solved

API filtering wasn't working for query parameters like ?status=open. The backend was ignoring the filter and returning all records.

Root Cause

FastAPI's Depends() with Pydantic BaseModel doesn't automatically parse query parameters or trigger validators.

Solution Implemented

Created custom dependency functions that:

1. Explicitly declare each query parameter using Query()
2. Parse comma-separated strings into lists
3. Return properly typed filter objects

Files Modified

✅ Fixed and Working

1. src/app/api/v1/tickets.py

   • Added parse_ticket_filters() function
   • Added missing date import
   • Status: WORKING ✅

2. src/app/api/v1/projects.py

   • Added parse_project_filters() function
   • Added missing date import
   • Status: READY ✅

3. src/app/api/v1/sales_orders.py

   • Added parse_sales_order_filters() function
   • Updated SalesOrderListResponse schema with new pagination fields
   • Status: MIGRATED ✅

4. src/app/api/v1/users.py

   • Added parse_user_filters() function
   • Status: MIGRATED ✅

5. src/app/api/v1/tasks.py

   • Added parse_task_filters() function
   • Status: MIGRATED ✅

6. src/app/schemas/filters.py

   • Removed unused Union types
   • Removed @validator decorators (not needed)
   • Cleaned up imports

7. src/app/api/v1/customers.py

   • Added parse_customer_filters() function
   • Status: MIGRATED ✅

8. src/app/api/v1/notifications.py

   • Added parse_notification_filters() function
   • Updated to use filters.py NotificationFilters (not notification.py)
   • Status: MIGRATED ✅

9. src/app/api/v1/inventory.py

   • Added parse_inventory_filters() function
   • Status: MIGRATED ✅

✅ All Endpoints Migrated!

All endpoints with filter schemas have been successfully migrated to the new filtering pattern.

Testing Results

✅ Single value: ?status=open → Returns only "open" tickets ✅ Multiple values: ?status=open,in_progress → Returns "open" and "in_progress" tickets
✅ URL encoded: ?status=open%2Cassigned%2Cin_progress → Works correctly

Next Steps

1. Test projects endpoint filtering
2. Migrate sales_orders endpoint (HIGH priority)
3. Migrate other endpoints as needed

Documentation

• Migration plan: docs/devlogs/2025-12-08-filtering-migration-plan.md
• Technical details: docs/devlogs/2025-12-08-filter-fix.md