ePub Date of publication -> calibre Published?

seanos · 08-30-2012, 07:04 AM

I've added some ePubs that have the Date of publication in their metadata, but calibre seems to ignore this field.

Where does it get the Published column from?

kovidgoyal · 08-30-2012, 07:14 AM

<dc:date>

seanos · 08-31-2012, 02:01 AM

What does it do if there is more than one <dc:date> tag? e.g.

Code:

    <dc:date opf:event="original-publication">1992</dc:date>
    <dc:date opf:event="ops-publication">2008-09-18</dc:date>

kovidgoyal · 08-31-2012, 02:19 AM

I dont recall, most likely picks either the first or the last. Try it and see.

seanos · 08-31-2012, 04:21 AM

Ah, OK it's using the last one listed.

Feedbooks use this for historical novels, etc. and they (logically?) put the original publication date first, so that gets ignored by calibre.

Personally, I'm almost never interested in the date of the electronic edition, but I am interested when the work first appeared.

Is there any chance of an option to get calibre to use the earliest date (chronologically)?

kovidgoyal · 08-31-2012, 09:55 AM

Sigh, whose bright idea was using multiple <dc:date> tags? Given that the epub spec has no clear specification on how multiple date tags or the event attribute are to be interpreted, this is a recipe for chaos.

Next release of calibre will use the earliest date as pubdate.

seanos · 08-31-2012, 11:45 AM

If it's not specifically outlawed I suppose people are just going to do it.

It would be nice if this was clearer, but a standard with murky areas is better than no standard at all. Hopefully it will improve.

08-30-2012, 07:04 AM	#1
seanos Zealot Posts: 101 Karma: 12 Join Date: Apr 2010 Location: Melbourne, Australia Device: Kobo Sage, Kobo Aura H2O, LG V20	ePub Date of publication -> calibre Published? I've added some ePubs that have the Date of publication in their metadata, but calibre seems to ignore this field. Where does it get the Published column from?

08-31-2012, 02:01 AM	#3
seanos Zealot Posts: 101 Karma: 12 Join Date: Apr 2010 Location: Melbourne, Australia Device: Kobo Sage, Kobo Aura H2O, LG V20	What does it do if there is more than one <dc:date> tag? e.g. Code: <dc:date opf:event="original-publication">1992</dc:date> <dc:date opf:event="ops-publication">2008-09-18</dc:date>

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08-30-2012, 07:14 AM	#2
kovidgoyal creator of calibre Posts: 43,858 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	<dc:date>

08-31-2012, 02:19 AM	#4
kovidgoyal creator of calibre Posts: 43,858 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	I dont recall, most likely picks either the first or the last. Try it and see.

08-31-2012, 04:21 AM	#5
seanos Zealot Posts: 101 Karma: 12 Join Date: Apr 2010 Location: Melbourne, Australia Device: Kobo Sage, Kobo Aura H2O, LG V20	Ah, OK it's using the last one listed. Feedbooks use this for historical novels, etc. and they (logically?) put the original publication date first, so that gets ignored by calibre. Personally, I'm almost never interested in the date of the electronic edition, but I am interested when the work first appeared. Is there any chance of an option to get calibre to use the earliest date (chronologically)?

08-31-2012, 09:55 AM	#6
kovidgoyal creator of calibre Posts: 43,858 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Sigh, whose bright idea was using multiple <dc:date> tags? Given that the epub spec has no clear specification on how multiple date tags or the event attribute are to be interpreted, this is a recipe for chaos. Next release of calibre will use the earliest date as pubdate.

08-31-2012, 11:45 AM	#7
seanos Zealot Posts: 101 Karma: 12 Join Date: Apr 2010 Location: Melbourne, Australia Device: Kobo Sage, Kobo Aura H2O, LG V20	If it's not specifically outlawed I suppose people are just going to do it. It would be nice if this was clearer, but a standard with murky areas is better than no standard at all. Hopefully it will improve.

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