KoboTouch: Plugboards from series_index to SeriesNumber

ownedbycats · Today, 04:59 PM

On the Kobo device, the SeriesNumber row in the content table is a text column rather than an integer or float. Both null results and things like "1-4" are valid entries.

There's two things I'd like to know if are possible to do via plugboards:

1. For series omnibuses, I use series_indexes of x.y — 1.04 or 5.07. Is it possible to replace the period with a dash and remove the extra 0 to display as 1-4 on the Kobo?

2. For unnumbered series, I use a series_index of 0.0. This means a lot of "Series Name - 0"s on my device. Is it possible to return a null value instead?

chaley · Today, 05:13 PM

For both #1 and #2, the answer is no. The plugboard sets the series_index in a copy of the book's metadata. That index is a floating point value, and can only accept floating point values. It might be possible to set it to python None (would require a python template). I strongly suspect this won't work. If it doesn't fail in the plugboard then I don't know what the device driver would do with it.

It is possible that the 2-decimal-digit limitation can be ignored, but given the number of moving parts I don't know what will happen on the device, or even if the behavior is deterministic. If this interests you then try it and see.

ownedbycats · Today, 06:26 PM

Ah - I was afraid of that. I think at least #2 I can run a sqlite query on the database itself after Calibre's done syncing metadata.

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Today, 04:59 PM	#1
ownedbycats Custom User Title Posts: 9,250 Karma: 63194753 Join Date: Oct 2018 Location: Canada Device: Kobo Libra H2O, formerly Aura HD	KoboTouch: Plugboards from series_index to SeriesNumber On the Kobo device, the SeriesNumber row in the content table is a text column rather than an integer or float. Both null results and things like "1-4" are valid entries. There's two things I'd like to know if are possible to do via plugboards: 1. For series omnibuses, I use series_indexes of x.y — 1.04 or 5.07. Is it possible to replace the period with a dash and remove the extra 0 to display as 1-4 on the Kobo? 2. For unnumbered series, I use a series_index of 0.0. This means a lot of "Series Name - 0"s on my device. Is it possible to return a null value instead? Last edited by ownedbycats; Today at 05:28 PM. Reason: typo

Today, 05:13 PM	#2
chaley Grand Sorcerer Posts: 11,928 Karma: 7208979 Join Date: Jan 2010 Location: Notts, England Device: Kobo Libra 2	For both #1 and #2, the answer is no. The plugboard sets the series_index in a copy of the book's metadata. That index is a floating point value, and can only accept floating point values. It might be possible to set it to python None (would require a python template). I strongly suspect this won't work. If it doesn't fail in the plugboard then I don't know what the device driver would do with it. It is possible that the 2-decimal-digit limitation can be ignored, but given the number of moving parts I don't know what will happen on the device, or even if the behavior is deterministic. If this interests you then try it and see.

Today, 06:26 PM	#3
ownedbycats Custom User Title Posts: 9,250 Karma: 63194753 Join Date: Oct 2018 Location: Canada Device: Kobo Libra H2O, formerly Aura HD	Ah - I was afraid of that. I think at least #2 I can run a sqlite query on the database itself after Calibre's done syncing metadata.

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