NickelSeries: Integrated EPUB/KEPUB series metadata support

[npr]

I have the same problem as @RodasQ, I just cannot get NickelSeries to write the subtitle on the first connection.
I suspect my issue is the column type. I'm using type "Column built from other column", it's the only type where I can get the text to appear in the #subtitle column, but I think NickelSeries needs #subtitle to be a text column.
Can anyone please advise how to create / copy a integer column type to a text column type.
Or am I on the wrong track altogether?

[Phil_C]

Originally Posted by npr

I have the same problem as @RodasQ, I just cannot get NickelSeries to write the subtitle on the first connection.
I suspect my issue is the column type. I'm using type "Column built from other column", it's the only type where I can get the text to appear in the #subtitle column, but I think NickelSeries needs #subtitle to be a text column.
Can anyone please advise how to create / copy a integer column type to a text column type.
Or am I on the wrong track altogether?

Maybe something similar to my solution here:

https://www.mobileread.com/forums/sh...2&postcount=64

[npr]

Thanks, that's exactly what I'm doing, but it refuses to write the subtitle on the first connection. It appears on the second connection but that's from the Kobotouchextended driver not from NickelSeries.
Note: The Series info is being written on the first connect so that's from NickelSeries.
Can you please confirm the column type you are using?

[Phil_C]

[geek1011]

Originally Posted by RodasQ

Changed, and confirmed that still not works. But works after second

This info is embebed in the opf file

"#subtitle": {
"#extra#": 2.0,
"#value#": "Volume",
"category_sort": "value",
"colnum": 3,
"column": "value",
"datatype": "series",
"display": {
"description": ""
}

Can I see the entire tag? It looks like calibre has changed it. NickelSeries looks for <meta name="calibre:user_metadata:#subtitle" ...

[DNSB]

This is what I see when embedding a subtitle in an ePub using calibre (the subtitle is "Daring Adventures on Elephant Island":

<meta name="calibre:user_metadata:#subtitle" content="{&quot;table&quot;: &quot;custom_column_9&quot;, &quot;column&quot;: &quot;value&quot;, &quot;datatype&quot;: &quot;text&quot;, &quot;is_multiple&quot;: null, &quot;kind&quot;: &quot;field&quot;, &quot;name&quot;: &quot;Subtitle&quot;, &quot;search_terms&quot;: [&quot;#subtitle&quot;], &quot;label&quot;: &quot;subtitle&quot;, &quot;colnum&quot;: 9, &quot;display&quot;: {&quot;description&quot;: &quot;&quot;, &quot;use_decorations&quot;: 0}, &quot;is_custom&quot;: true, &quot;is_category&quot;: true, &quot;link_column&quot;: &quot;value&quot;, &quot;category_sort&quot;: &quot;value&quot;, &quot;is_csp&quot;: false, &quot;is_editable&quot;: true, &quot;rec_index&quot;: 31, &quot;#value#&quot;: &quot;Daring Adventures on Elephant Island&quot;, &quot;#extra#&quot;: null, &quot;is_multiple2&quot;: {}}" />

[npr]

Checking the file "metadata.opf" in calibre, most of my books don't have a entry for <meta name="calibre:user_metadata:#subtitle ...
Only the most recent book I loaded in calibre and one I've just deleted and reloaded as a test has that entry.
I've tried reloading both books which has that entry but still no subtitle on first connection.

<meta name="calibre:user_metadata:#subtitle" content="{&quot;table&quot;: &quot;custom_column_18&quot;, &quot;column&quot;: &quot;value&quot;, &quot;datatype&quot;: &quot;composite&quot;, &quot;is_multiple&quot;: &quot;,&quot;, &quot;kind&quot;: &quot;field&quot;, &quot;name&quot;: &quot;Subtitle&quot;, &quot;search_terms&quot;: [&quot;#subtitle&quot;], &quot;label&quot;: &quot;subtitle&quot;, &quot;colnum&quot;: 18, &quot;display&quot;: {&quot;composite_template&quot;: &quot;{#reading_hours} hours&quot;, &quot;composite_sort&quot;: &quot;text&quot;, &quot;make_category&quot;: false, &quot;contains_html&quot;: false, &quot;composite_show_in_comments&quot;: false, &quot;description&quot;: &quot;&quot;}, &quot;is_custom&quot;: true, &quot;is_category&quot;: false, &quot;link_column&quot;: &quot;value&quot;, &quot;category_sort&quot;: &quot;value&quot;, &quot;is_csp&quot;: false, &quot;is_editable&quot;: true, &quot;rec_index&quot;: 25, &quot;#value#&quot;: &quot;7.00 hours&quot;, &quot;#extra#&quot;: null, &quot;is_multiple2&quot;: {&quot;cache_to_list&quot;: &quot;,&quot;, &quot;ui_to_list&quot;: &quot;,&quot;, &quot;list_to_ui&quot;: &quot;, &quot;}}"/>

@Phil_C, thanks agin that's the same as I've been using.

[Quoth]

Originally Posted by DNSB

This is what I see when embedding a subtitle in an ePub using calibre (the subtitle is "Daring Adventures on Elephant Island":

AFAIK there is no standard subtitle declaration on epub2, mobi/prc/azw/KF7 or azw3/KF8?
Is there anything other than Kobo actually displays a subtitle?

[geek1011]

Originally Posted by DNSB

This is what I see when embedding a subtitle in an ePub using calibre (the subtitle is "Daring Adventures on Elephant Island":

<meta name="calibre:user_metadata:#subtitle" content="{&quot;table&quot;: &quot;custom_column_9&quot;, &quot;column&quot;: &quot;value&quot;, &quot;datatype&quot;: &quot;text&quot;, &quot;is_multiple&quot;: null, &quot;kind&quot;: &quot;field&quot;, &quot;name&quot;: &quot;Subtitle&quot;, &quot;search_terms&quot;: [&quot;#subtitle&quot;], &quot;label&quot;: &quot;subtitle&quot;, &quot;colnum&quot;: 9, &quot;display&quot;: {&quot;description&quot;: &quot;&quot;, &quot;use_decorations&quot;: 0}, &quot;is_custom&quot;: true, &quot;is_category&quot;: true, &quot;link_column&quot;: &quot;value&quot;, &quot;category_sort&quot;: &quot;value&quot;, &quot;is_csp&quot;: false, &quot;is_editable&quot;: true, &quot;rec_index&quot;: 31, &quot;#value#&quot;: &quot;Daring Adventures on Elephant Island&quot;, &quot;#extra#&quot;: null, &quot;is_multiple2&quot;: {}}" />

Yes, that's what I expected, and it's what NickelSeries supports.

Originally Posted by npr

Checking the file "metadata.opf" in calibre, most of my books don't have a entry for <meta name="calibre:user_metadata:#subtitle ...
Only the most recent book I loaded in calibre and one I've just deleted and reloaded as a test has that entry.
I've tried reloading both books which has that entry but still no subtitle on first connection.

<meta name="calibre:user_metadata:#subtitle" content="{&quot;table&quot;: &quot;custom_column_18&quot;, &quot;column&quot;: &quot;value&quot;, &quot;datatype&quot;: &quot;composite&quot;, &quot;is_multiple&quot;: &quot;,&quot;, &quot;kind&quot;: &quot;field&quot;, &quot;name&quot;: &quot;Subtitle&quot;, &quot;search_terms&quot;: [&quot;#subtitle&quot;], &quot;label&quot;: &quot;subtitle&quot;, &quot;colnum&quot;: 18, &quot;display&quot;: {&quot;composite_template&quot;: &quot;{#reading_hours} hours&quot;, &quot;composite_sort&quot;: &quot;text&quot;, &quot;make_category&quot;: false, &quot;contains_html&quot;: false, &quot;composite_show_in_comments&quot;: false, &quot;description&quot;: &quot;&quot;}, &quot;is_custom&quot;: true, &quot;is_category&quot;: false, &quot;link_column&quot;: &quot;value&quot;, &quot;category_sort&quot;: &quot;value&quot;, &quot;is_csp&quot;: false, &quot;is_editable&quot;: true, &quot;rec_index&quot;: 25, &quot;#value#&quot;: &quot;7.00 hours&quot;, &quot;#extra#&quot;: null, &quot;is_multiple2&quot;: {&quot;cache_to_list&quot;: &quot;,&quot;, &quot;ui_to_list&quot;: &quot;,&quot;, &quot;list_to_ui&quot;: &quot;, &quot;}}"/>

@Phil_C, thanks agin that's the same as I've been using.

That should work...

https://github.com/pgaskin/kobo-mods...a.cc#L150-L162

https://github.com/pgaskin/kobo-mods...s.cc#L112-L126

If you want to confirm that NickelSeries sees it, look at the syslog (with logread).

Unless Kobo is overriding the subtitle afterwards, which it didn't IIRC.

[npr]

Yes it's working if I force calibre to update the "metadata.opf" file for each book.
Anyone know a bulk way to update that file?

[DNSB]

Originally Posted by npr

Yes it's working if I force calibre to update the "metadata.opf" file for each book.
Anyone know a bulk way to update that file?

The metadata.opf in each book folder is maintained by calibre and the subtitle should be added there when editing metadata. AFAIR, the only time those files are used is when metadata.db in the root of the library folder is rebuilt.

Again, AFAIR, calibre updates the .opf file internal to the ePub to match calibre's current metadata during the send to device operation. I know you can disable this for a Save to disk operation but I can't remember ever seeing that capability to disable that update for a send to device operation.

You could use the Polish tool to update the metadata in the book files. See attached image for the setting to do only that. The Polish tool icon is the one that looks like a whisk broom.