Does the Calibre folder unique id matter?

Backdraft · 04-05-2011, 07:41 PM

Hi,

So I recently may have messed up part of my Calibre library by inadvertantly adding books to it outside of Calibre, but everything seems to be back to normal. However it seems that the unique id # for each book folder (ie. in Author/Book Title (#)/Book Title - Author.epub) may have been changed, although I'm not exactly sure yet.

My question is, does the value of the unique id # matter much at this point, or should I start with a fresh library (ie. create empty library, go through time-consuming process of adding books, looking up metadata, etc.). Frankly I've had no problems yet but was wondering whether it may cause problems in the future, ie. adding more books through Calibre.

Thanks.

theducks · 04-05-2011, 08:00 PM

Quote:

Originally Posted by Backdraft

Hi,

So I recently may have messed up part of my Calibre library by inadvertantly adding books to it outside of Calibre, but everything seems to be back to normal. However it seems that the unique id # for each book folder (ie. in Author/Book Title (#)/Book Title - Author.epub) may have been changed, although I'm not exactly sure yet.

My question is, does the value of the unique id # matter much at this point, or should I start with a fresh library (ie. create empty library, go through time-consuming process of adding books, looking up metadata, etc.). Frankly I've had no problems yet but was wondering whether it may cause problems in the future, ie. adding more books through Calibre.

Thanks.

Book ID is the number Calibre associates internally with your book(s) line item in the Library list (there may be more than 1 format for that line item .

If you only changed the number, Rebuild may be a option (wait for Kovid to confirm)
Then you could run the Verify to identify the "Extra titles" and move each them out to a safe location until the Library tests 'clean'.
Then import them the correct way

Backdraft · 04-05-2011, 09:11 PM

The only thing I noticed is that the lower # unique ids (ie. (1), (2), (3)) have disappeared, and all my folder titles are at least triple-digits. I guess on the safe side I'll recreate a new library and import all my books to there.

kovidgoyal · 04-05-2011, 09:19 PM

If you changed any part of a folder name, calibre will lose track of the books in that folder. Use the Check library functionality to locate such books.

theducks · 04-05-2011, 09:28 PM

Quote:

Originally Posted by Backdraft

The only thing I noticed is that the lower # unique ids (ie. (1), (2), (3)) have disappeared, and all my folder titles are at least triple-digits. I guess on the safe side I'll recreate a new library and import all my books to there.

Don't worry About what number Calibre assigned.
If you changed something in the GUI, Calibre may assign a new number. Numbers are never re-used once abandoned. There will be gaps over time. as long as the Library passes the Integrity checks, you are good to go.

See Kovid's response. This is his baby

Backdraft · 04-06-2011, 03:37 AM

Well I did the "Check library" under Library Maintenance, and the database integrity checked out OK, and the files in my library matched that of the database.

So I suppose nothing is amiss?

Thanks.

theducks · 04-06-2011, 09:24 AM

Quote:

Originally Posted by Backdraft

Well I did the "Check library" under Library Maintenance, and the database integrity checked out OK, and the files in my library matched that of the database.

So I suppose nothing is amiss?

Thanks.

We have a Winner

Happy

04-05-2011, 07:41 PM	#1
Backdraft Member Posts: 20 Karma: 10 Join Date: Sep 2010 Device: Android + Aldiko	Does the Calibre folder unique id matter? Hi, So I recently may have messed up part of my Calibre library by inadvertantly adding books to it outside of Calibre, but everything seems to be back to normal. However it seems that the unique id # for each book folder (ie. in Author/Book Title (#)/Book Title - Author.epub) may have been changed, although I'm not exactly sure yet. My question is, does the value of the unique id # matter much at this point, or should I start with a fresh library (ie. create empty library, go through time-consuming process of adding books, looking up metadata, etc.). Frankly I've had no problems yet but was wondering whether it may cause problems in the future, ie. adding more books through Calibre. Thanks.

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04-05-2011, 09:11 PM	#3
Backdraft Member Posts: 20 Karma: 10 Join Date: Sep 2010 Device: Android + Aldiko	The only thing I noticed is that the lower # unique ids (ie. (1), (2), (3)) have disappeared, and all my folder titles are at least triple-digits. I guess on the safe side I'll recreate a new library and import all my books to there.

04-05-2011, 09:19 PM	#4
kovidgoyal creator of calibre Posts: 43,842 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	If you changed any part of a folder name, calibre will lose track of the books in that folder. Use the Check library functionality to locate such books.

04-06-2011, 03:37 AM	#6
Backdraft Member Posts: 20 Karma: 10 Join Date: Sep 2010 Device: Android + Aldiko	Well I did the "Check library" under Library Maintenance, and the database integrity checked out OK, and the files in my library matched that of the database. So I suppose nothing is amiss? Thanks.

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