# Rollover Loan Exclusion Fix - Summary

## Issue
Rolled-over loans were appearing in all reports (loans due, delinquent, arrears, etc.) when they should be excluded.

**Example:** LOAN-000128 appeared in the "Loans Due Enhanced" report even though it had been rolled over.

## Root Cause
Report queries were only filtering by `status='active'` and `is_deleted=False`, but NOT checking:
- `is_rolled_over` flag
- `status='rolled_over'` status

## Solution Applied

### Files Modified
1. **reports/simple_reports_service.py** - 5 methods updated
2. **reports/comprehensive_reports.py** - 3 methods updated  
3. **reports/views.py** - 2 functions updated

### Changes Made
Added rollover exclusion to all loan queries:

```python
# OLD CODE
loans_qs = Loan.objects.filter(status='active', is_deleted=False)

# NEW CODE
loans_qs = Loan.objects.filter(
    status='active',
    is_deleted=False,
    is_rolled_over=False
).exclude(status='rolled_over')
```

## Impact

### All Reports Now Exclude Rolled-Over Loans
✅ Dashboard summary metrics  
✅ Loans due today  
✅ Loans due enhanced report  
✅ Delinquent loans report  
✅ Loans in arrears report  
✅ Portfolio details  
✅ Outstanding loans  
✅ Overdue loans analytics  
✅ Missed payments summary  

## Deployment

### Quick Steps
1. Upload 3 modified files to production
2. Restart application: `touch tmp/restart.txt`
3. Verify rolled-over loans don't appear in reports

### Verification
- Check LOAN-000128 (or any rolled-over loan)
- It should NOT appear in `/reports/loans-due/enhanced/`
- Dashboard counts should exclude rolled-over loans

## Technical Details

### Methods Updated in simple_reports_service.py
- `get_summary_metrics()` - Line 26
- `get_loans_due_today()` - Line 87
- `get_delinquent_loans()` - Line 149
- `get_overdue_loans_analytics()` - Line 322
- `get_missed_payments_summary()` - Line 461

### Methods Updated in comprehensive_reports.py
- `get_loans_due_report()` - Line 52
- `get_delinquent_loans_report()` - Line 157
- `get_loans_in_arrears_report()` - Line 255

### Functions Updated in views.py
- `get_filtered_loans_for_user()` - Line 60
- `portfolio_details()` - Line 86

## Testing

### SQL Queries to Verify
Run these in phpMyAdmin to check:

```sql
-- Count rolled-over loans
SELECT COUNT(*) FROM loans 
WHERE (is_rolled_over = 1 OR status = 'rolled_over');

-- Check specific loan
SELECT loan_number, status, is_rolled_over 
FROM loans 
WHERE loan_number = 'LOAN-000128';

-- Count what reports should show
SELECT COUNT(*) FROM loans 
WHERE status = 'active' 
  AND is_deleted = 0 
  AND is_rolled_over = 0;
```

### Manual Testing
1. Find a rolled-over loan in the database
2. Visit each report page
3. Verify the loan doesn't appear
4. Check dashboard metrics are correct

## Rollback Plan
If issues occur:
1. Restore backup files
2. Restart application
3. Report the issue

## Notes
- ✅ No database changes required
- ✅ No migrations needed
- ✅ Backward compatible
- ✅ All existing reports automatically fixed
- ✅ No template changes needed

## Files Included
- `ROLLOVER_FIX_SUMMARY.md` - This file
- `DEPLOY_ROLLOVER_FIX.md` - Deployment guide
- `ROLLOVER_EXCLUSION_FIX.md` - Detailed technical documentation
- `check_rollover_loans.sql` - SQL queries for verification
- `test_rollover_exclusion_fix.py` - Test script (for development)

## Support
If you encounter any issues after deployment:
1. Check the application logs
2. Run the SQL verification queries
3. Verify the files were uploaded correctly
4. Ensure the application was restarted
