Assert Failed Packed when trying to copy metadata in lua script

Forum|Forum|1 year ago
January 15, 2025
2 replies
232 views

I'm trying to write a lightroom classic plugin. One of the steps is to copy metadata from one photo to another.

I'm using :

newPhoto:setRawMetadata("keywords", oldPhoto:getRawMetadata("keywords"))

but it throws the error.

Also "title" is an unrecognized metadata key even though it apears in the sdk docs.

SDK

johnrellis

Legend

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""title" is an unrecognized metadata key even though it apears in the sdk docs."

Use photo:getFormattedMetadata() rather than getRawMetadata():

KerdosMediaAuthor

Known Participant

There is no setFormattedMetadata, how do I set title? I couldn't just move the photos so I'm copying, reimporting and copying metadata. Title is one of the important fields for me.

johnrellis

Legend

Some fields you retrieve with getFormattedMetadata(), some with getRawMetadata(). But you set all fields using setRawMetadata().

johnrellis

Legend

"but it throws the error."

What's the error?

KerdosMediaAuthor

Known Participant

It's in the title a assert failed packed

johnrellis

Legend

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According to the API docs, photo:setRawMetadata() doesn't support the key "keywords":

Instead, use photo:addKeyword() and removeKeyword().

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