NetBox v3.4 introduced a new global search mechanism, which employs the `extras.CachedValue` model to store discrete field values from many models in a single table.
## SearchIndex
To enable search support for a model, declare and register a subclass of `netbox.search.SearchIndex` for it. Typically, this will be done within an app's `search.py` module.
```python
from netbox.search import SearchIndex, register_search
@register_search
class MyModelIndex(SearchIndex):
model = MyModel
fields = (
('name', 100),
('description', 500),
('comments', 5000),
)
```
A SearchIndex subclass defines both its model and a list of two-tuples specifying which model fields to be indexed and the weight (precedence) associated with each. Guidance on weight assignment for fields is provided below.
