Thread: Covers dissapearing
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Old 07-27-2019, 08:21 AM   #4
davidfor
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Join Date: Jul 2011
Location: Sydney, Australia
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Quote:
Originally Posted by JIPG-reader View Post
Thank you for the answer.

I supposed that if the book is available, the cover should be also downloaded.
I understand the matter of new editions, but I have now 8 books in this case, some not read and bought only a couple of weeks ago, and although is not a big deal, I like to see the covers when I look for a book.
I checked a few books that I have like this. They all show the covers on my devices.
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About the database corruption, I expected it, but I recovered a backup when this was not a problem and it happened again.
This can work, but, it depends on how old the backup was. And what changed in between. I wouldn't expect the ids for covers for purchased books to change, but, it isn't something I have really checked.
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Looking in the database for books bought in the kobo store is a nightmare as they are identified by an id no by its title as the sideloaded ones. Is there any trick to find them?
I would like to check where the cover points (the file) after the sync and after the cover is lost
The book is described by the row in the content table with "contentType=6". The column "Title" is what I usually use when searching for a book. The "ImageId" is used as part of the filename of the covers. You will need to do a search to find the actual file. My Kobo Utilities plugin does have a function to open the directory holding the cover image for any book on the device. You can use this to check if the cover image is on the disk when it disappears, and what it now looks like.
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Anyway, I am confused about what it is triggering the problem, as with a sync the cover is recovered, but after some time it is lost again without any event that can be related to a change in the database (e.g. the book has not been opened in this time) .

No other issues about reading position or other data stored in the data base for the affected books. Only the change of the cover by a generic one.
If the database isn't being corrupted, then I don't know. If it was something that happened after a while of use, I would suspect it was memory leak or other bug triggering the loss. But, unless the database is being updated, the image id should be recovered after the power cycle. Otherwise, something would have to be removing the actual file.
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