Error sending metadata to device

[Katsunami]

Calibre version: 2.68
Device: Kobo Aura ONE, running the current latest firmware 4.0.7523.
Driver: Kobo Touch Extended plugin/driver

While removing and adding some books to the reader, I got an error during "Sending Metadata To Device":

'apsw.Connection' object has no attribute 'commit'

Traceback (most recent call last):
  File "site-packages\calibre\gui2\device.py", line 87, in run
  File "site-packages\calibre\gui2\device.py", line 533, in _sync_booklists
  File "calibre_plugins.kobotouch_extended.device.driver", line 396, in sync_booklists
AttributeError: 'apsw.Connection' object has no attribute 'commit'

I do not know if this is caused by an error in the Kobo Touch Extended plugin, or in Calibre itself, or for some other reason. I ejected the device and reconnected it again, and then continued to remove and add books.

I received this error one single time during the removal of some books. The books were removed correctly, as far as I've been able to see. I've also added several books, and had no problems. To test, I've removed some books and then added them again, again without problems.

Up until now, this error was a one-off, but I thought reporting it may be of use to possibly fix a problem before it causes damage (if there is a real problem at al, that is).

[Terisa de morgan]

It is reported in the extended device thread. It looks like it only happens when you are sending a big batch of books to the Kobo (it has happened to me too), but no further damage.

[Katsunami]

Yes, I've been adding a few series in collections, so I have some more material to choose from when I finish a book, so I have been adding stacks of 10+ books to the device.

(I wonder if I should add my entire library.... To be honest, I'm a bit afraid to lose the device. While I can get over losing the reader itself, I wouldn't want to put about almost 800 un-drm-ed books into the wild.)

[Terisa de morgan]

I think I have no problem with it: 500 un-drm-ed book in the Spanish wild... in English, I think they are not going to be very loved

[Katsunami]

Well, reading English, especially fantasy, is probably a bigger thing in the Netherlands than it is in Spain...

[BetterRed]

FWIW: according to this Spaniards use calibre the most.

[Terisa de morgan]

Originally Posted by BetterRed

FWIW: according to this Spaniards use calibre the most.

Curious, really. Thank you for the info.

[theducks]

Originally Posted by BetterRed

FWIW: according to this Spaniards use calibre the most.

That list always surprises me.
Most of the top slots are not even English (any variation ) Speaking countries. (Spain does handle the Tourist trade well

[davidfor]

Originally Posted by Terisa de morgan

It is reported in the extended device thread. It looks like it only happens when you are sending a big batch of books to the Kobo (it has happened to me too), but no further damage.

The code that is failing is a check in the database for an imageId. If all the books have one, then the update is not run and hence this is error not seen.

The imageId is usually missing for book formats that don't have a format. TXT is the usual one I see. But, it is also not created if a kepub doesn't contain a cover. The extended driver is fixing this so that if a cover is sent separately, it will be used.

[kovidgoyal]

Originally Posted by theducks

That list always surprises me.
Most of the top slots are not even English (any variation ) Speaking countries. (Spain does handle the Tourist trade well

I suspect it is because Amazon has less of a stranglehold on the ebook market in European countries. So there is a larger diversity of ebook sources and reading devices, which makes calibre useful to more people.

[Katsunami]

Originally Posted by kovidgoyal

I suspect it is because Amazon has less of a stranglehold on the ebook market in European countries. So there is a larger diversity of ebook sources and reading devices, which makes calibre useful to more people.

At 50 books or so, calibre becomes very useful, except if you're someone who buys a book at the time they want to read it, then read it, and then abandon it, not caring what happens to it. If you use multiple sources and formats for e-books, the program in combination with Alf is indispensable if you don't want to go crazy.