All books suddenly show same "modified" date

LucyOne · 05-11-2014, 11:11 AM

I've got the latest version of Calibre. I was editing some books today and I don't know what I did, I must have hit a key by mistake, but suddenly the "modified" column showed today's date for all my books. Any idea what could have caused this? Might this be reversable?

user743 · 05-11-2014, 11:35 AM

did you bulk edit metadata?

LucyOne · 05-11-2014, 11:47 AM

No, I edited a few books one after another. And I don't remember marking and selecting all books by mistake.

theducks · 05-11-2014, 11:56 AM

If they share a common TAG, and you add a book with a different case, they all get updated (because the spelling had to change(?) in the backup OPF)

eg. Science fiction => Science Fiction

LucyOne · 05-11-2014, 12:07 PM

Quote:

Originally Posted by theducks

If they share a common TAG

No, they don't. I usually leave tags as they are because I don't use them for sorting.

theducks · 05-11-2014, 01:43 PM

Quote:

Originally Posted by LucyOne

No, they don't. I usually leave tags as they are because I don't use them for sorting.

This has nothing to do with YOU making the edit.
If you add a book that HAS a different tag calibre Updates the (DB master)TAG

BetterRed · 05-11-2014, 05:25 PM

@LucyOne - Did you add a custom column - if so which type?

BR

theducks · 05-11-2014, 07:15 PM

Quote:

Originally Posted by BetterRed

@LucyOne - Did you add a custom column - if so which type?

BR

Forgot about that . That would alsodo it

LucyOne · 05-12-2014, 04:39 AM

My books all have different tags.
I have some custom columns, one where I mark Y/N and one where I choose between two alternatives. But I don't do anything in these columns when this occured.

glos · 05-12-2014, 05:11 AM

Happened to me, too, a few days ago...
I think I had added a custom column (text as tags) but then without even starting to fill it I deleted it. [but I've done that other times without the result of now having all the books with the same modified date (in older versions of calibre)].

LucyOne · 05-12-2014, 05:19 AM

Looks like it's a bug then, thanks for the feedback.

chaley · 05-12-2014, 07:05 AM

Adding, removing, or editing the metadata of any custom column will update the lastmod date for every book next time calibre is restarted. Changing the template of a composite custom column (built from other columns) is considered a metadata change. This will happen even if the column is added and then removed before calibre is restarted. The reason to update all books is to ensure that calibre's metadata.opf files contain the latest information.

BetterRed · 05-12-2014, 07:22 AM

Quote:

Originally Posted by theducks

Forgot about that . That would alsodo it

chaley just posted the definitive answer on that

The case change effects 'issue' you mentioned for Tags also effects Publisher.

BR

LucyOne · 05-13-2014, 11:17 AM

Thanks to this thread here https://www.mobileread.com/forums/sho...d.php?t=154780 I added a custom column with the added date which I can use for sorting now, since the modified date doesn't fit my needs anymore.

theducks · 05-13-2014, 12:13 PM

Quote:

Originally Posted by LucyOne

Thanks to this thread here https://www.mobileread.com/forums/sho...d.php?t=154780 I added a custom column with the added date which I can use for sorting now, since the modified date doesn't fit my needs anymore.

FWIW
Date is the date the original Record was created. Normally this does not change (on its own).

But...
If you happen to create empty books to track your paper library or use as a Wishlist, it will not reflect the date that the actual BOOK file is added. Your custom field will allow you to track that

05-11-2014, 11:11 AM	#1
LucyOne Librocubicularist Posts: 617 Karma: 11908623 Join Date: Dec 2013 Location: Germany Device: PocketBook InkPad 3 & Touch HD 3, Kobo Clara HD, Kindle Paperwhite 5	All books suddenly show same "modified" date I've got the latest version of Calibre. I was editing some books today and I don't know what I did, I must have hit a key by mistake, but suddenly the "modified" column showed today's date for all my books. Any idea what could have caused this? Might this be reversable?

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05-11-2014, 11:35 AM	#2
user743 Addict Posts: 243 Karma: 44444 Join Date: Mar 2014 Device: Kindle PW2 special offers removed by Amazon for FREE	did you bulk edit metadata?

05-11-2014, 11:47 AM	#3
LucyOne Librocubicularist Posts: 617 Karma: 11908623 Join Date: Dec 2013 Location: Germany Device: PocketBook InkPad 3 & Touch HD 3, Kobo Clara HD, Kindle Paperwhite 5	No, I edited a few books one after another. And I don't remember marking and selecting all books by mistake.

05-11-2014, 11:56 AM	#4
theducks Well trained by Cats Posts: 31,047 Karma: 60358908 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	If they share a common TAG, and you add a book with a different case, they all get updated (because the spelling had to change(?) in the backup OPF) eg. Science fiction => Science Fiction

05-11-2014, 05:25 PM	#7
BetterRed null operator (he/him) Posts: 21,718 Karma: 29711016 Join Date: Mar 2012 Location: Sydney Australia Device: none	@LucyOne - Did you add a custom column - if so which type? BR

05-12-2014, 04:39 AM	#9
LucyOne Librocubicularist Posts: 617 Karma: 11908623 Join Date: Dec 2013 Location: Germany Device: PocketBook InkPad 3 & Touch HD 3, Kobo Clara HD, Kindle Paperwhite 5	My books all have different tags. I have some custom columns, one where I mark Y/N and one where I choose between two alternatives. But I don't do anything in these columns when this occured.

05-12-2014, 05:11 AM	#10
glos Zealot Posts: 132 Karma: 1070185 Join Date: Mar 2013 Location: Italy Device: Kobo Aura HD	Happened to me, too, a few days ago... I think I had added a custom column (text as tags) but then without even starting to fill it I deleted it. [but I've done that other times without the result of now having all the books with the same modified date (in older versions of calibre)].

05-12-2014, 05:19 AM	#11
LucyOne Librocubicularist Posts: 617 Karma: 11908623 Join Date: Dec 2013 Location: Germany Device: PocketBook InkPad 3 & Touch HD 3, Kobo Clara HD, Kindle Paperwhite 5	Looks like it's a bug then, thanks for the feedback.

05-12-2014, 07:05 AM	#12
chaley Grand Sorcerer Posts: 12,443 Karma: 8012886 Join Date: Jan 2010 Location: Notts, England Device: Kobo Libra 2	Adding, removing, or editing the metadata of any custom column will update the lastmod date for every book next time calibre is restarted. Changing the template of a composite custom column (built from other columns) is considered a metadata change. This will happen even if the column is added and then removed before calibre is restarted. The reason to update all books is to ensure that calibre's metadata.opf files contain the latest information.

05-13-2014, 11:17 AM	#14
LucyOne Librocubicularist Posts: 617 Karma: 11908623 Join Date: Dec 2013 Location: Germany Device: PocketBook InkPad 3 & Touch HD 3, Kobo Clara HD, Kindle Paperwhite 5	Thanks to this thread here https://www.mobileread.com/forums/sho...d.php?t=154780 I added a custom column with the added date which I can use for sorting now, since the modified date doesn't fit my needs anymore.

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