Return sub_labels in event summary information

[dermotduffy]

• Closes Should sub_labels be included in api/events/summary ? #5639

(Well that was easy)

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[NickM-27]

Just want to make sure you're aware, there are cases where a sub_label can be a comma separated list of multiple names (for example if two people walk up to the camera at the same time). So the card may want to split that list up depending on how the search is being done.

[dermotduffy]

Just want to make sure you're aware, there are cases where a sub_label can be a comma separated list of multiple names (for example if two people walk up to the camera at the same time). So the card may want to split that list up depending on how the search is being done.

Did not know that -- thanks, will split on the card.

[dermotduffy]

Actually -- that's kind of a problem. If the sub label is foo,bar, and the card wants to search for bar, there's not a great way to do that except separately getting the list of all sub_labels and reverse matching the "unsplit" labels.

Is there a reason sub_label isn't just a list, like zones?

[NickM-27]

Actually -- that's kind of a problem. If the sub label is foo,bar, and the card wants to search for bar, there's not a great way to do that except separately getting the list of all sub_labels and reverse matching the "unsplit" labels.

You can see how I handled this here: #5602

Ended up not being too bad

Is there a reason sub_label isn't just a list, like zones?

It was just a string, wasn't until other projects started adding support for the feature directly (like doubletake) that it became a concern.

Anyway, let me know if a solution like my PR isn't possible.