Specific filter for custom link

[tux-mania]

Hello all!

I need some help please in order to retrieve some data.
On a custom link (displayed on the site), I need to get data from one of the circuit assigned to it.
I don't know yet how to do it on the Netbox' UI side, but I'm still trying to find it with the Netbox shell.

The way I tried (which is not working):

>>> circuit = Site.objects.get(name='SITE-NAME').circuit_terminations.get(circuit__custom_field_data__WAN='2')
>>> circuit
<CircuitTermination: Termination A: SITE-NAME>
>>> circuit.custom_field_data.get('IP')
>>>

Obviously, the custom field 'IP' is not empty, but I am not able to retrieve the data.

Could someone help me on this one please?
Thanks a lot for your time.

[candlerb]

Just to state the obvious, you searched for a circuit with custom_field_data["WAN"], but you are reading custom_field_data["IP"].

What value do you get from the expression circuit.custom_field_data, without the get('IP') on the end?

[tux-mania]

Sorry if it wasn't well explained from the beginning... To be more specific:
I have a site with 3 circuits assigned to it. Each circuit has custom fields "WAN" and "IP". I have WAN=1 for 1rst circuit, WAN=2 for the second, etc.
I need to get the value of the custom field "IP" on the circuit assigned to the site which has the custom field "WAN" = 2

I get the following result:

>>> circuit = Site.objects.get(name='SITE-NAME').circuit_terminations.get(circuit__custom_field_data__WAN='2').custom_field_data
>>> circuit
{}

[candlerb]

What does this show?

>>> cterm = Site.objects.get(name='SITE-NAME').circuit_terminations.get(circuit__custom_field_data__WAN='2')
>>> type(cterm)

It seems to me that you're looking for custom field data on the circuit termination, but you've only checked whether custom_field_data exists on the circuit.

What makes you think that there is custom field data on the circuit termination?

Maybe what you're looking for is:

>>> cterm.circuit.custom_field_data

[tux-mania]

Hi @candlerb . Thank you for your help.
The cterm.circuit.custom_field_data was exactly what I was looking for! I still get lost with all of these syntax...

Thanks again for your help and your time!!!

[candlerb]

No problem. You just have to remember that circuit and circuit termination are two different objects, which are linked together:

circuit ------< circuit termination

i.e. each circuit termination "belongs to" a particular circuit.

Hence while you can set custom_field_data on circuit, you can also set it on the related circuit terminations as well.