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mirror of https://github.com/netbox-community/netbox.git synced 2024-05-10 07:54:54 +00:00
Jeremy Stretch 9628dead07 Closes #10560: New global search (#10676)
* Initial work on new search backend

* Clean up search backends

* Return only the most relevant result per object

* Clear any pre-existing cached entries on cache()

* #6003: Implement global search functionality for custom field values

* Tweak field weights & document guidance

* Extend search() to accept a lookup type

* Move get_registry() out of SearchBackend

* Enforce object permissions when returning search results

* Add indexers for remaining models

* Avoid calling remove() on non-cacheable objects

* Use new search backend by default

* Extend search backend to filter by object type

* Clean up search view form

* Enable specifying lookup logic

* Add indexes for value field

* Remove object type selector from search bar

* Introduce SearchTable and enable HTMX for results

* Enable pagination

* Remove legacy search backend

* Cleanup

* Use a UUID for CachedValue primary key

* Refactoring search methods

* Define max search results limit

* Extend reindex command to support specifying particular models

* Add clear() and size to SearchBackend

* Optimize bulk caching performance

* Highlight matched portion of field value

* Performance improvements for reindexing

* Started on search tests

* Cleanup & docs

* Documentation updates

* Clean up SearchIndex

* Flatten search registry to register by app_label.model_name

* Clean up search backend classes

* Clean up RestrictedGenericForeignKey and RestrictedPrefetch

* Resolve migrations conflict
2022-10-21 13:16:16 -04:00

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Markdown

# Search
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.
### Field Weight Guidance
| Weight | Field Role | Examples |
|--------|--------------------------------------------------|----------------------------------------------------|
| 50 | Unique serialized attribute | Device.asset_tag |
| 60 | Unique serialized attribute (per related object) | Device.serial |
| 100 | Primary human identifier | Device.name, Circuit.cid, Cable.label |
| 110 | Slug | Site.slug |
| 200 | Secondary identifier | Provider.account, DeviceType.part_number |
| 300 | Highly unique descriptive attribute | CircuitTermination.xconnect_id, IPAddress.dns_name |
| 500 | Description | Site.description |
| 1000 | Custom field default | - |
| 2000 | Other discrete attribute | CircuitTermination.port_speed |
| 5000 | Comment field | Site.comments |