Display Circuits Count in the Site Table View

[damsitt]

NetBox version

4.4.2

Feature type

Change to existing functionality

Proposed functionality

Currently, the Site list view (/dcim/sites/) does not display the number of Circuits associated with each Site, even though this information is available via the API (/api/dcim/sites/ → circuit_count field).
It would be very useful to include this count directly in the Site table view, similar to how device counts are displayed.

Use case

For network teams managing multiple locations, being able to see the circuit count at a glance helps with:

Quickly identifying which sites have active WAN links

Capacity planning and troubleshooting connectivity issues

Reducing the need to open each site individually or use the API

Database changes

No response

External dependencies

This enhancement would make the Site table more informative and consistent with other object views that already display related object counts.

[jeremystretch]

I'm opening this for work under the condition that the count of circuits associated with each site not be hard-coded into the view's queryset (as device_count and asn_count are currently). This is important to avoid introducing additional overhead when not needed to render the table (i.e. because the applicable column is not being displayed).

(We'd like to remove the current hard-coded annotations at some point as well, but circuits especially are concerning from a performance standpoint as the relationship must traverse a generic foreign key on the CircuitTermination model.)