Questions about my first metadata plugin

[feuille]

Hello,
i've build my first calibre plugin for a metadata source. It runs so far, an the data in the debug output looks fine.
However, only some of the standard metadata fields and none of the custom fields are filled in the GUI.
There are some threads about custom metadata, but i'm not shure if there reflects the latest API (i use calibre 5).

'overview' is a dictionary with the collected data from the metadata source.

This works:

mi.comments = str(overview['Überblick:'])

... and this not:

mi.publisher = str(overview['Leseprobe:'])
mi.tags = str(overview['Glossar:']).split('/')
mi.tags = [x.strip(' ') for x in mi.tags]

This works:

mi.set_identifier('pp-id', series_code + issuenumber)

... and this not:

mi.set('#subtitle', str(overview['Untertitel:']))
mi.set_user_metadata('#subtitle', str(overview['Untertitel:']))

Thanks for any hints!

[kovidgoyal]

You cannot fill custom fields in metadata plugins. Publisher and tags should work fine however.

[feuille]

Hello Kovid,
thanks for the information, it helped a lot.
The standard metadata fields in the GUI were not filled in because a stupid error: the check boxes for these fields in the configuration screen were still disabled.
For the custom fields: is there any plans for such an extension? If not, is there an option to automatically fill in the custom fields from a standard field (all of the data for my custom fields is now in the comments field), for example with a different type of plugin?
Anyway, thanks for this wonderful software!

[kovidgoyal]

No plans, the issue is that custom columns are different in every users config/every library, so it would require some kind of configuration to map values.

As for copying values from one field to another you can do that via the search/replace tab of the bulk metadata edit dialog.

[davidfor]

@feuille: There are a couple of metadata source plugins that get extra data and put it in the standard columns. They delimit it somehow and either have a another plugin to do the move or can use search-and-replace to do it. An example of the plugin pair is Goodreads_rating and Float Rating (F_rating).

[BeckyEbook]

I also recommend METAmover, which can transfer various data from a comment to its custom columns. Perhaps you just need to gently adjust it to your needs.