# AuditLog Table Fix Summary

## Problem
The application was throwing a `ProgrammingError` when trying to log in:
```
(1146, "Table 'acbptxvs_branch_system.utils_auditlog' doesn't exist")
```

## Root Cause
The `utils_auditlog` table was missing from the database, even though:
- The Django migration history showed it as applied
- The model existed in `utils/models.py`
- The migration file `0002_auditlog.py` existed

This typically happens when:
1. The database was restored from a backup that didn't include the table
2. The table was manually deleted
3. Migrations were run on a different database

## Solution
Created the `utils_auditlog` table manually with the correct schema:

```sql
CREATE TABLE `utils_auditlog` (
    `id` char(32) NOT NULL,
    `action` varchar(50) NOT NULL,
    `model_name` varchar(100) NOT NULL,
    `object_id` varchar(50) NOT NULL,
    `description` longtext NOT NULL,
    `ip_address` char(39) DEFAULT NULL,
    `user_agent` varchar(255) DEFAULT NULL,
    `created_at` datetime(6) NOT NULL,
    `user_id` char(32) DEFAULT NULL,
    PRIMARY KEY (`id`),
    KEY `utils_auditlog_user_id_idx` (`user_id`),
    KEY `utils_auditlog_created_at_idx` (`created_at`),
    CONSTRAINT `utils_auditlog_user_id_fk` 
        FOREIGN KEY (`user_id`) 
        REFERENCES `users` (`id`) 
        ON DELETE SET NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
```

## Important Notes
- The foreign key references the `users` table (not `users_customuser`) because the CustomUser model has `db_table = 'users'` in its Meta class
- The table structure matches the AuditLog model definition in `utils/models.py`

## Files Created During Fix
- `fix_auditlog_table.py` - Initial diagnostic script
- `create_auditlog_table.sql` - SQL file with CREATE TABLE statement
- `create_missing_table.py` - First attempt to create table (failed due to wrong FK reference)
- `check_database_tables.py` - Script to list all database tables
- `check_users_table.py` - Script to check users table structure
- `create_auditlog_final.py` - **Final working script** that created the table

## Verification
✓ Table exists in database
✓ All columns are correctly defined
✓ Foreign key constraint to `users` table is in place
✓ Indexes are created (user_id, created_at)

Run `python verify_fix.py` to verify the table exists and is properly configured.

## Status
✅ **FIXED** - The utils_auditlog table has been successfully created and configured.

## Testing
To test the fix:
1. Start your Django development server:
   ```bash
   python manage.py runserver
   ```

2. Navigate to: http://127.0.0.1:8000/login/

3. Try logging in - the error should be resolved.

## Next Steps
You can now try logging in again. The error should be resolved.

## Cleanup (Optional)
You can delete the following temporary files if desired:
- `fix_auditlog_table.py`
- `create_auditlog_table.sql`
- `create_missing_table.py`
- `check_database_tables.py`
- `check_users_table.py`
- `create_auditlog_final.py`

Keep `AUDITLOG_FIX_SUMMARY.md` for reference.
