Django DB Rollback

gistfile1.txt

first import the tracsaction contrl
```
from django.db import transaction

```

then code like this
```

@api_view(['POST'])
@transaction.atomic
def signup(request):
    sid = transaction.savepoint()
    try:
        ...
        ...
        transaction.savepoint_commit(sid)

    except Exception as e:
        transaction.rollback(sid)
        
```

step 1: import the library
step 2: use transaction decorator
step 3: create save point id (sid) so we can roll back or commit for particular stage
step 4: if function run successfully then the transaction will commited
step 5: otherwise the rollback operaion revert the database changes till sid.