$fields->find('tag=XXX') ?

[oap]

I'd like to use the API to get all fields that are tagged with XXX. I can't find anywhere that tells me what selectors can be can used with $fields. I suspect this isn't possible?

I've realised a way to work around this - just get all the fields, and then filter them by prefix of name. But it wouldn't be quite as neat.

[LostKobrakai]

You're not clear in your question. Are we talking about namespaces (a_title, a_body, c_body) or tagged fields, as of the tags to group fields in the backend? 

[oap]

You're not clear in your question. Are we talking about namespaces (a_title, a_body, c_body) or tagged fields, as of the tags to group fields in the backend? 

The tags to group fields in the backend. (I was considering a namespace style method as a workaround.)

[LostKobrakai]

You can try this:

$fields->find("tags*=XXX");

[oap]

You can try this:

$fields->find("tags*=XXX");

That worked! Thanks

(Am I missing somewhere where this sort of thing is documented?)

[LostKobrakai]

This in not documented, as I doubt this is meant to be often used by the enduser, but the source-code is quite fast to scan if you know the overall structure. Most of the seasoned pw users are simply using github or a local installation to lookup things.