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Old 10-11-2012, 04:00 AM   #1
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Getting last added books

Is there a way to get the ids for the last added books after using the gui.iactions['Add Books']?

I know I can get last modified book from iactions using db.last_modified(). But... what about last added book(s)?
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Old 10-11-2012, 04:37 AM   #2
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Not directly, but you can simply get all ids before and after the operation. As long as no other jobs are running in the interim that is reliable, or you can directly use the db interface to add books instead of using the iaction.
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Old 10-11-2012, 05:03 AM   #3
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Thanks, kovidgoyal. The method of get ids before and after the iaction was already my "second solution".

The use of iaction instead of the db is because this way I don't need to create any user interface window (iaction has it own user interface).
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Old 10-11-2012, 06:11 AM   #4
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I have another problem: I read book ids in library, then I lauch iaction for adding books, after that I read again for ids in library.... and I get same ids list than before!

I know that it's because iaction for adding books uses an Adder object that uses a "worker" to make the job and returns control to main function. So when I read ids for second time, the worker is still working, and I get no new ids.

Any way to solve this?
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Old 10-11-2012, 06:13 AM   #5
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Use a timer an keep polling till you have the new ids. Or you can be sophisticated and monkey patch the callback function on the iaction object so that your callback is called instead. Just remeber to retore the original function after you are done.
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Old 10-11-2012, 07:19 AM   #6
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Quote:
Originally Posted by kovidgoyal View Post
Use a timer an keep polling till you have the new ids.
This is not a good solution, because the user may cancel the iaction, and we never will get new ids.

Quote:
Originally Posted by kovidgoyal View Post
Or you can be sophisticated and monkey patch the callback function on the iaction object so that your callback is called instead. Just remeber to retore the original function after you are done.
I had no idea about what a monkey patch was. But google is my friend, so I search, found... and it works!
I monkey patch the "_files_added" function at the iaction to make its work, and then to call my own function to get the ids. And works OK.

Thank you again for your help, kovidgoyal, you're the king!

Last edited by Pepin33; 10-11-2012 at 01:02 PM.
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