AnkiDroid export: Allow duplicite cards to be exported

[dantedg]

Hey guys,
For an unknown reason, the transfer from Aedict to AnkiDroid is not working anymore.
When I try to do it, I've got a message which says "0 cards added to deck '' xxx'' '' so it acts like it was successfully added but in reality, it's not.
Do you know why? So far I've transferred thousand cards without any problems so what's going on?
Thanks.

[mvysny]

This happens when exactly identical card is already present in the deck. Could you verify that this is the case, or it is something different? Can you try to add the card to a different (perhaps newly created) deck?

[dantedg]

You're right, I've already added this card to another deck. So it's impossible to export 2 times the same card in 2 differents decks ? I'm a little bit suprised by that...
I've got a LOT of decks and cards so how can I find where are the duplicate cards that's I've got ?

Thanks.

[mvysny]

Ooops, I am sorry. I see the value of not adding duplicite cards into one deck, yet a single card should be able to be present in different decks. Think different sets, maybe JLPT5 and "most 100 common kanjis" - some kanjis are bound to overlap.
If you agree with the above, I'll look into the export code and fix it as explained above.

[mvysny]

AnkiDroid API needs to be changed for the removeDuplicates() method to target the scope of deck only.

[timrae]

AnkiDroid API needs to be changed

Remove duplicates code is not part of the API; it's example code for applications. Every application has different requirements so we decided not to integrate that code into the API. If you want different behavior, you'll need to customize it yourself; that's what example code means ;)

My personal feeling is that it's harmful to the learning process to have the same card in multiple decks, as your learning history will be split across two cards. The situation you described with jlpt is better handled with tags and filtered decks.

[mvysny]

@timrae thanks, your opinion makes sense. @dantedg what do you think?

[timrae]

If you do end up changing it, you might want to at least show a warning when there's duplicates in different decks